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1.
Arch. argent. pediatr ; 119(4): 270-273, agosto 2021. tab, ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1280932

ABSTRACT

En pacientes con infección por SARS-CoV-2 la intubación endotraqueal es un procedimiento con riesgo elevado de contagio. La videolaringoscopia complementa la protección del profesional, pero los videolaringoscopios comerciales son caros y no siempre están disponibles en las terapias intensivas pediátricas argentinas. El objetivo fue describir la práctica de intubación en un modelo de cabeza de simulación de lactante con un videolaringoscopio artesanal de bajo costo.Quince pediatras sin experiencia previa con el dispositivo participaron de una práctica de intubación en una cabeza de simulación con un videolaringoscopio artesanal. El tiempo promedio del primer intento fue de 116,4 segundos (intervalo de confianza del 95 % [IC95 %]: 84,8-148,0) y, el del siguiente fue de 44,2 segundos (IC95 %: 27,7­60,6). El tiempo disminuyó de forma significativa en el segundo intento (p : 0,0001). El dispositivo permitió la intubación exitosa en todos los intentos acortando la duración del procedimiento en la segunda práctica


In patients with SARS-CoV-2 infection, endotracheal intubation is a procedure with a high risk for transmission. A videolaryngoscopy is a supplementary level of health care provider protection, but commercial videolaryngoscopes are expensive and not always available in pediatric intensive care units in Argentina. Our objective was to describe intubation practice using an infant head mannequin with a low-cost, handcrafted videolaryngoscope.Fifteen pediatricians with no prior experience using the device participated in an intubation practice in a head mannequin with a handcrafted videolaryngoscope. The average time for the first attempt was 116.4 seconds (95 % confidence interval [CI]: 84.8-148.0) and, for the second one, 44.2 seconds (95 % CI: 27.7-60.6). Time decreased significantly for the second attempt (p: 0.0001).A successful intubation was achieved with the device in all attempts, and the procedure duration decreased with the second practice


Subject(s)
Humans , Infant , Pediatrics/education , Laryngoscopes/economics , Simulation Training/methods , COVID-19/prevention & control , Intubation, Intratracheal/instrumentation , Laryngoscopy/economics , Pediatrics/economics , Time Factors , Video Recording , Health Care Costs , Clinical Competence/statistics & numerical data , Education, Medical, Continuing/methods , Learning Curve , COVID-19/transmission , Internship and Residency/methods , Intubation, Intratracheal/economics , Intubation, Intratracheal/methods , Laryngoscopy/education , Laryngoscopy/instrumentation , Laryngoscopy/methods , Manikins
3.
Article in Spanish | LILACS | ID: biblio-1400377

ABSTRACT

Existen diferentes recomendaciones internacionales sobre el rango de presión delcuff para utilizar en usuarios adultos con vía aérea artificial. Algunas instituciones de salud chilenas han creado sus protocolos de vía aérea basadas en dichas recomendaciones, ya que no existe una guía nacional. Se desarrolló una revisiónbibliográficaen la Universidad de Southampton, Reino Unido,para determinar el rango adecuado de presión delcuff siendo entre 20-30 cmH2O. Posteriormente, se creó un cuestionario online válido y confiable en español en la Universidad de Southampton, Reino Unido,para ser aplicado en Chile. El objetivo de este estudio es analizar las respuestas emanadas de los profesionales de salud en Chile sobre el manejo de la presión delcuff en pacientes adultos con vía aérea artificial. Es un estudio analítico, observacional y transversal. Consistió en analizar las respuestas de enfermeros, kinesiólogos y fonoaudiólogos con experiencia en pacientes con vía aérea artificialtras aplicar el cuestionario. Los resultados muestran que la técnica objetiva fue ampliamente utilizada de forma aislada (58%) en comparación al uso exclusivo de subjetivas (7%). La presión mínima fue de 25 cmH2O mientras que la máxima fue de 34 cmH2O, rango mayor a lo reportado por la evidencia. Solo un 38% declaró la existencia de protocolo en su trabajo. Hubo diferencia estadísticamente significativa entre las presiones máximas usadas y las recomendadas en dichos protocolos (p=0,029). Se concluye que los participantes en Chile mostraron un manejo poco seguro de la presión delcuff en pacientes adultos con vía aérea artificial que puede generar riesgos asociados a cuffssobre o sub insuflados. Se sugiere desarrollar una guía Ministerial.


There are different international recommendations on the cuff pressure range for the management of adult patients with an artificial airway. Some Chilean health institutions have developed their own airway management protocols based on these recommendations due to the lack of a national guide. A literature review wasundertaken at the University of Southampton, U.K., to determine the appropriate cuff pressure range. Results found that this is between 20-30 cmH2O. Afterwards, a valid and reliable online questionnaire was developed in Spanish at the University of Southampton for application in Chile. The aim of this study is to analyse the cuff pressure management of adult patients with an artificial airway performed by non-medical health professionals in Chile. An analytical, observational and cross-sectional study was performed. A database which contained the responses of nurses, physiotherapists and speech therapists with experience attending adult patients with an artificial airway in Chile was analysed. Results show that 58% of the participants used exclusively the objective technique whilst 7% only used subjective techniques. The minimum and maximum pressures used were 25 and 34 cmH2O respectively, which were higher than the recommended range. 38% of the participants declared that there was an existing protocol at their workplace. There was a significant difference between the maximum pressures used by the clinicians and the pressures recommended on the protocols (p=.029). In conclusion, the participants showed a poor manage of the cuff pressure which could create risks linked with over-inflated or under-inflated cuffs. It is suggested to develop a national guide.


Subject(s)
Humans , Adult , Pressure , Tracheostomy , Health Personnel , Airway Management , Intubation, Intratracheal/instrumentation , Chile , Cross-Sectional Studies , Surveys and Questionnaires
4.
Rev. chil. anest ; 50(3): 480-488, 2021. ilus, tab
Article in Spanish | LILACS | ID: biblio-1525591

ABSTRACT

GOALS: Determine the success rate of guided intubation with a flexible bronchofibroscope (BFC) through supraglottic devices: I-gel or Fastrach, establish the degree of fibroscopic visualization and determine the insertion time of the laryngeal mask airway (LMA) and endotracheal intubation. METHODS: Experimental, prospective, comparative and randomized study of 60 ASA I-II-III patients, older than 18 years, undergoing elective surgeries that required general anesthesia and endotracheal intubation. After anesthetic induction, the assigned LMA was placed and intubation with BFC was performed through it. Both the success of laryngeal mask insertion and intubation were recorded, as well as the time (in seconds) equired for these procedures. The vision of the laryngeal structures was classified according to the Brimacombe Scale. RESULTS: The groups analyzed presented similar general characteristics. Insertion time of he LMA was significantly lower with I-gel than Fastrach (median 12 s vs 16 s. Respectively, p = 0.001). Also, in the intubation time BFC guided through the laryngeal mask, differences in favor of I-gel were found, with a median of 72 s. vs 89 s. (p = 0.001). Regarding the degree of glottic visualization with BFC, no statistically significant differences were found between both groups.CONCLUSIONS: Although both devices had the highest success rate (both in their placement and in intubation through them), with I-gel the intubation was performed quicker.


OBJETIVOS: Determinar la tasa de éxito de intubación guiada con broncofibroscopio flexible (BFC) a través de los dispositivos supraglóticos: I-gel o Fastrach, establecer el grado de visualización fibroscópica y determinar el tiempo de inserción de la máscara laríngea y de intubación endotraqueal. MATERIALES Y MÉTODOS: Estudio experimental, prospectivo, comparativo y aleatorizado de 60 pacientes ASA I- II ­III, mayores de 18 años, sometidos a cirugías electivas que requerían anestesia general e intubación endotraqueal. Luego de la inducción anestésica, se procedió a colocar la máscara laríngea asignada y se realizó la intubación con BFC a través de la misma. Tanto el éxito de inserción de máscara laríngea como de intubación fueron registrados, así como el tiempo (en segundos) requerido para dichos procedimientos. La visión de las estructuras laríngeas fue clasificada de acuerdo a Escala de Brimacombe. RESULTADOS: Los grupos analizados presentaron características generales similares. El tiempo de inserción de la ML fue significativamente menor con I-gel que con Fastrach (medianas: 12 s. vs 16 s. respectivamente, p = 0,001). También en el tiempo de intubación guiada con BFC a través de la máscara laríngea, se encontraron diferencias en favor de I-gel, con una mediana de 72 s. vs 89 s. (p = 0,001). Respecto al grado de visualización glótica con BFC, no se encontraron diferencias estadísticamente significativas entre ambos grupos. CONCLUSIONES: Aunque ambos dispositivos tuvieron la máxima tasa de éxito (tanto en su colocación como en la intubación a través de ellos), con I-gel se realizó la intubación de manera más rápida.


Subject(s)
Humans , Adult , Middle Aged , Respiration, Artificial/methods , Bronchoscopy/methods , Laryngeal Masks , Time Factors , Body Weight , Prospective Studies , Treatment Outcome , Fiber Optic Technology , Intubation, Intratracheal/instrumentation , Intubation, Intratracheal/methods
5.
Rev. bras. anestesiol ; 70(6): 583-587, Nov.-Dec. 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1155765

ABSTRACT

Abstract Background and objectives Several airway complications can occur during shoulder arthroscopy including airway obstruction, pleural puncture, and subcutaneous emphysema. It was hypothesized that the irrigation fluid used during a shoulder arthroscopic procedure might increase the cuff pressure of the endotracheal tube, which can cause edema and ischemic damage to the endotracheal mucosa. Therefore, this study aimed to evaluate the relationship between irrigation fluid and endotracheal tube cuff pressures. Methods Forty patients aged 20 to 70 years with an American Society of Anesthesiologists (ASA) score I or II, scheduled for elective arthroscopic shoulder surgery under general anesthesia, participated in our study. We recorded endotracheal tube cuff pressures and neck circumferences every hour from the start of the operation. We also recorded the total duration of the anesthesia, operation, and the total volume of fluid used for irrigation. Results A positive correlation was shown between endotracheal tube cuff pressures and the amount of irrigation fluid (r = 0.385, 95% CI 0.084 to 0.62, p = 0.0141). The endotracheal tube cuff pressure significantly increased at 2 and 3 hours after starting the operation (p = 0.0368 and p = 0.0245, respectively). However, neck circumference showed no significant difference. Conclusions Endotracheal tube cuff pressures increased with operation time and with increased volumes of irrigation fluid used in patients who underwent shoulder arthroscopy. We recommend close monitoring of endotracheal tube cuff pressures during shoulder arthroscopy, especially during long operations using a large amount of irrigation fluid, to prevent complications caused by raised cuff pressures.


Resumo Justificativa e objetivos Diversas complicações das vias aéreas podem ocorrer durante a artroscopia do ombro, incluindo obstrução das vias aéreas, punção pleural e enfisema subcutâneo. Levantou‐se a hipótese de que o fluido de irrigação utilizado durante artroscopia do ombro possa aumentar a pressão do balonete do tubo endotraqueal, podendo causar edema e lesão isquêmica na mucosa traqueal. Portanto, este estudo teve como objetivo avaliar a relação entre o fluido de irrigação e a pressão do balonete do tubo endotraqueal. Métodos Participaram do estudo 40 pacientes com idades entre 20 e 70 anos com classificação do estado físico I ou II da American Society of Anesthesiologists (ASA), programados para cirurgia artroscópica do ombro, eletiva e sob anestesia geral. Registramos as pressões do balonete do tubo endotraqueal e as circunferências do pescoço a cada hora, a partir do início da cirurgia. Também registramos a duração anestésica e cirúrgica, assim como o volume total de líquido de irrigação empregado. Resultados Foi encontrada correlação positiva entre a pressão do balonete do tubo endotraqueal e a quantidade de líquido de irrigação (r = 0,385; 95% IC 0,084 a 0,62; p = 0,0141). A pressão do balonete do tubo endotraqueal registrou aumento significante 2 e 3 horas após o início da cirurgia (p = 0,0368 e p = 0,0245, respectivamente). No entanto, a circunferência do pescoço não mostrou diferença significante. Conclusões As pressões do balonete do tubo endotraqueal aumentaram com o tempo de cirurgia e com o aumento do volume de líquido de irrigação utilizado em pacientes submetidos a artroscopia do ombro. Recomendamos a monitorização rigorosa da pressão do balonete do tubo endotraqueal durante artroscopia do ombro, especialmente nos procedimentos longos em que grandes volumes de fluido de irrigação são empregados, para evitar complicações causadas por pressões elevadas do balonete.


Subject(s)
Humans , Male , Female , Adult , Aged , Young Adult , Pressure/adverse effects , Shoulder Joint/surgery , Intubation, Intratracheal/adverse effects , Time Factors , Elective Surgical Procedures/adverse effects , Elective Surgical Procedures/methods , Operative Time , Intubation, Intratracheal/instrumentation , Therapeutic Irrigation/adverse effects , Anesthesia, General/statistics & numerical data , Neck/anatomy & histology
6.
Rev. bras. anestesiol ; 70(6): 595-604, Nov.-Dec. 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1155768

ABSTRACT

Abstract Background and objectives: In this study, we aimed to investigate the predictive value of different airway assessment tools, including parts of the Simplified Predictive Intubation Difficulty Score (SPIDS), the SPIDS itself and the Thyromental Height Test (TMHT), in intubations defined as difficult by the Intubation Difficulty Score (IDS) in a group of patients who have head and neck pathologies. Methods: One hundred fifty-three patients who underwent head and neck surgeries were included in the study. The Modified Mallampati Test (MMT) result, Thyromental Distance (TMD), Ratio of the Height/Thyromental Distance (RHTMD), TMHT, maximum range of head and neck motion and mouth opening were measured. The SPIDSs were calculated, and the IDSs were determined. Results: A total of 25.4% of the patients had difficult intubations. SPIDS scores >10 had 86.27% sensitivity, 71.57% specificity and 91.2% Negative Predictive Value (NPV). The results of the Receiver Operating Curve (ROC) analysis for the airway screening tests and SPIDS revealed that the SPIDS had the highest area under the curve; however, it was statistically similar to other tests, except for the MMT. Conclusions: The current study demonstrates the practical use of the SPIDS in predicting intubation difficulty in patients with head and neck pathologies. The performance of the SPIDS in predicting airway difficulty was found to be as efficient as those of the other tests evaluated in this study. The SPIDS may be considered a comprehensive, detailed tool for predicting airway difficulty.


Resumo Justificativa e objetivos: Neste estudo, avaliamos o valor preditivo de diferentes ferramentas de avaliação das vias aéreas, incluindo componentes do Escore Simplificado Preditivo de Intubação Difícil (ESPID), o próprio ESPID e a Medida da Altura Tireomentoniana (MATM), em intubações definidas como difícies pelo Escore de Dificuldade de Intubação (EDI) em um grupo de pacientes com patologia de cabeça e pescoço. Método: Incluímos no estudo 153 pacientes submetidos a cirurgia de cabeça e pescoço. Coletamos os resultados do Teste de Mallampati Modificado (TMM), Distância Tireomentoniana (DTM), Razão Altura/Distância Tireomentoniana (RADTM), MATM, amplitude máxima de movimentação da cabeça e pescoço e da abertura da boca. Os ESPIDs foram calculados e os EDIs, determinados. Resultados: Observamos intubação difícil em 25,4% dos pacientes. Os escores de ESPID > 10 tiveram sensibilidade de 86,27%, especificidade de 71,57% e valor preditivo negativo de 91,2% (VPN). O resultado da análise da curva de operação do receptor (curva ROC) para os testes de avaliação das vias aéreas e ESPID mostrou que o ESPID tinha a maior área sob a curva; no entanto, foi estatisticamente semelhante a outros testes, exceto para o TMM. Conclusões: O presente estudo demonstra o uso prático do ESPID na previsão da dificuldade de intubação em pacientes com patologia de cabeça e pescoço. O desempenho do ESPID na predição de via aérea difícil mostrou-se tão eficiente quanto os demais testes avaliados neste estudo. O ESPID pode ser considerado ferramenta abrangente e detalhada para prever via aérea difícil.


Subject(s)
Humans , Adult , Aged , Aged, 80 and over , Young Adult , Intubation, Intratracheal/methods , Neck/surgery , Neck Dissection/statistics & numerical data , Thyroid Gland/surgery , Tongue Neoplasms/surgery , Nasopharyngeal Neoplasms , Predictive Value of Tests , Prospective Studies , ROC Curve , Range of Motion, Articular , Sensitivity and Specificity , Outcome Assessment, Health Care , Mandibular Advancement , Head and Neck Neoplasms/surgery , Intubation, Intratracheal/instrumentation , Laryngectomy/statistics & numerical data , Maxillofacial Injuries/surgery , Middle Aged , Mouth/physiology , Neck/anatomy & histology
7.
Rev. chil. pediatr ; 91(5): 691-696, oct. 2020. tab
Article in Spanish | LILACS | ID: biblio-1144267

ABSTRACT

INTRODUCCIÓN: El cambio de cánula de traqueostomía en niños constituye un procedimiento clave, sin embargo, falta claridad en algunos de sus aspectos. OBJETIVO: Caracterizar el cambio de cánula de traqueostomía en niños de una institución de larga estadía hospitalaria. PACIENTES Y MÉTODO: Estudio retrospectivo observacional analítico en base al registro clínico de 2 años de niños hospitalizados usuarios de traqueostomía. Las variables evaluadas fueron: motivo de cambio de traqueostomía, número y marca de traqueostomía, operador y participantes (ayudantes/espectadores) del procedimiento, complicaciones y contexto educacional. RESULTADOS: 630 cambios de cánula de traqueostomía fueron analizados. Los operadores más frecuentes fueron familiares (33,7%). El principal motivo de cambio fue rutina (83,3%). Un 10,7% de los cambios presentó alguna complicación, siendo la más frecuente el sangrado periostoma (47,37%) y el primer intento frustro (34,21%). No existió asociación entre la presencia de balón y complicaciones (p = 0,24), tampoco con el uso de ventilación mecánica (p = 0,8) u operador (p = 0,74). CONCLUSIÓN: El cambio de rutina de cánula de traqueostomía en niños con vía aérea artificial prolongada es un procedimiento seguro, realizable tanto por profesionales de la salud como por familiares debidamente instruidos.


INTRODUCTION: Changing the tracheostomy tube in children is a key procedure, however, some of its aspects re main unclear. OBJECTIVE: To characterize the tracheostomy tube change in children from a long-stay health institution. PATIENTS AND METHOD: Retrospective observational analytical study based on the 2-year clinical record of hospitalized children who underwent tracheostomy. The variables evaluated were the reason for tracheostomy tube change, size and brand of the tube, operator and participants (assistants/spectators) of the procedure, complications, and education. RESULTS: We analyzed 630 tracheostomy tube changes. The most frequent operators were relatives (33.7%). The main reason for the change was routine (83.3%). 10.7% of the changes presented some complications, where the most frequent was peristomal bleeding (47.37%) and the first failed attempt (34.21%). There was no association between the presence of balloon and complications (p = 0.24), nor with the use of Mechanical Ventilation (p = 0.8) or the operator (p = 0.74). CONCLUSION: The routine change of the tracheostomy tube in children with prolonged artificial airway use is a safe procedure, which can be performed by both health professionals and properly trained family members.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Respiration, Artificial/instrumentation , Tracheostomy , Intubation, Intratracheal/adverse effects , Intubation, Intratracheal/methods , Retrospective Studies , Follow-Up Studies , Clinical Competence/statistics & numerical data , Medical Errors/statistics & numerical data , Hospitalization , Intubation, Intratracheal/instrumentation
8.
Rev. bras. ter. intensiva ; 32(2): 235-243, Apr.-June 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1138497

ABSTRACT

RESUMO Objetivo: Identificar as unidades de terapia intensiva neonatais, pediátricas e mistas (neonatais e pediátricas) no Brasil que utilizam cânulas traqueais com balonete na prática clínica, e descrever as características relacionadas à utilização de protocolos e monitoração. Métodos: Para identificação das unidades de terapia intensiva no Brasil, foi acessado o Cadastro Nacional de Estabelecimentos de Saúde do Ministério da Saúde, e foram obtidas informações de 693 unidades de terapia intensiva cadastradas. Trata-se de estudo transversal analítico do tipo survey realizado por questionário eletrônico enviado para 298 unidades de terapia intensiva neonatais, pediátricas e mistas do Brasil. Resultados: Este estudo analisou 146 questionários (49,3% de unidades de terapia intensiva neonatais, 35,6% de unidades de terapia intensiva pediátricas e 15,1% de unidades de terapia intensiva pediátricas mistas). A maioria das unidades participantes (78/146) utilizou cânulas traqueais com balonete, com predomínio de uso nas unidades de terapia intensiva pediátricas (52/78). A maioria das unidades que utilizou cânulas traqueais com balonete aplicou protocolo de monitoração da pressão do balonete (45/78). O uso de protocolos de monitoração do balonete foi observado nas unidades de terapia intensiva com Serviço de Fisioterapia exclusivo da unidade (38/61) e naquelas com tempo de atuação do fisioterapeuta 24 horas/dia (25/45). A causa de falha de extubação mais frequentemente relacionada ao uso de cânulas traqueais com balonete em unidades de terapia intensiva pediátricas foi a obstrução de vias aéreas superiores. Conclusão: Nesta enquete, houve predomínio do uso de cânulas traqueais com balonete e da aplicação de protocolo de monitoração da pressão do balonete em unidades de terapia intensiva pediátricas. A utilização de protocolo de monitoração foi mais frequente em unidades de terapia intensiva com fisioterapeuta exclusivo e com tempo de atuação 24 horas/dia.


ABSTRACT Objective: To identify the neonatal, pediatric and mixed (neonatal and pediatric) intensive care units in Brazil that use cuffed tracheal tubes in clinical practice and to describe the characteristics related to the use of protocols and monitoring. Methods: To identify the intensive care units in Brazil, the Ministry of Health's National Registry of Health Facilities was accessed, and information was collected on 693 registered intensive care units. This was an analytical cross-sectional survey conducted through electronic questionnaires sent to 298 neonatal, pediatric and mixed intensive care units in Brazil. Results: This study analyzed 146 questionnaires (49.3% from neonatal intensive care units, 35.6% from pediatric intensive care units and 15.1% from mixed pediatric intensive care units). Most of the participating units (78/146) used cuffed tracheal tubes, with a predominance of use in pediatric intensive care units (52/78). Most of the units that used cuffed tracheal tubes applied a cuff pressure monitoring protocol (45/78). The use of cuff monitoring protocols was observed in intensive care units with a physical therapy service exclusive to the unit (38/61) and in those with a physical therapist present 24 hours/day (25/45). The most frequent cause of extubation failure related to the use of cuffed tracheal tubes in pediatric intensive care units was upper airway obstruction. Conclusion: In this survey, the use of cuffed tracheal tubes and the application of a cuff pressure monitoring protocol was predominant in pediatric intensive care units. The use of a monitoring protocol was more common in intensive care units that had a physical therapist who was exclusive to the unit and was present 24 hours/day.


Subject(s)
Humans , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Young Adult , Intensive Care Units, Pediatric , Intensive Care Units, Neonatal , Airway Extubation/statistics & numerical data , Intubation, Intratracheal/instrumentation , Brazil , Cross-Sectional Studies , Surveys and Questionnaires , Equipment Design , Physical Therapists/statistics & numerical data
9.
Rev. bras. anestesiol ; 70(2): 118-124, Mar.-Apr. 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1137150

ABSTRACT

Abstract Background: Obesity causes various difficulties in intubation and ventilation, which are confronted due to increased fat tissue in the upper airway and diminished compliance in the chest wall. Videolaryngoscopes and Intubating Laryngeal Mask Airway (ILMA) are good options as recommended by the American Society of Anesthesologists (ASA) difficult airway guidelines. We aimed to compare ILMA and Airtraq (a channeled videolaryngoscope) in obese patients. Methods: Eighty patients with ASA physical status 1-3, aged between 18 and 65 years and with a body mass index greater than 35 kg.m-2, who were undergoing elective surgery requiring orotracheal intubation, were included in the study. Patients were intubated with one of the devices cited. Results: There was no difference between the number of intubation attempts, insertion times and need for optimisation manoeuvres of Airtraq and ILMA. The intubation with Airtraq was accomplished in a shorter period of time than in that in the ILMA group (29.9 ± 22.1s vs. 50.7 ± 21.2s; p < 0.001). A significant difference was found when the times of total intubation were compared (29.9 ± 22.1s vs. 97.4 ± 42.7s; p < 0.001). The mean arterial pressure statistically increased after device insertion in the ILMA group (p < 0.05). Conclusions: Airtraq appears to be superior to ILMA in obese patients, with a total of time intubation of less than 60 seconds and with low mean arterial pressure changes. However, ILMA is still a useful tool that provides both ventilation and intubation throughout the whole intubation process.


Resumo Justificativa: A obesidade dificulta a ventilação manual e intubação traqueal devido ao acúmulo de tecido adiposo na via aérea superior e a complacência diminuída na caixa torácica. Os videolaringoscópios e as Máscaras Laríngeas para Intubação (MLI) são alternativas boas para o manuseio da via aérea difícil, de acordo com as diretrizes da Sociedade Americana de Anestesologia (ASA). O objetivo do estudo foi comparar o uso da MLI e do Airtraq, um videolaringoscópio com canal, em pacientes obesos. Método: Estudamos 80 pacientes com classificação ASA I-III, com idades entre 18 e 65 anos e índice de massa corporal acima de 35 kg.m-2, submetidos a cirurgia eletiva com indicação de intubação orotraqueal. Os pacientes foram intubados empregando-se um dos seguintes dispositivos: MLI ou Airtraq. Resultados: Não houve diferença entre o número de tentativas de intubação, tempo de inserção do dispositivo e necessidade de manobras de otimização para o Airtraq e MLI. A intubação com Airtraq foi realizada mais rapidamente do que no Grupo MLI (29,9 ± 22,1 s vs. 50,7 ± 21,2 s; p < 0,001). Houve diferença significante na comparação do tempo total para intubação (29,9 ± 22,1 s vs. 97,4 ± 42,7 s; p < 0,001). Houve aumento estatisticamente significante da pressão arterial média após a inserção do dispositivo no Grupo MLI (p < 0,05). Conclusões: Airtraq parece ser superior a MLI em pacientes obesos, apresentando tempo total de intubação abaixo de 60 segundos e com menor variação na pressão arterial média. Todavia, a MLI ainda é ferramenta útil que propicia tanto ventilação quanto intubação durante todo o processo de manejo da via aérea.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Aged , Young Adult , Laryngeal Masks , Video-Assisted Surgery , Laryngoscopes , Intubation, Intratracheal/instrumentation , Obesity , Prospective Studies , Equipment Design , Laryngoscopy/instrumentation , Middle Aged
10.
Rev. bras. anestesiol ; 70(1): 9-14, Jan.-Feb. 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1137140

ABSTRACT

Abstract Background and objectives: Poor monitoring of tracheal tube cuff pressure may result in patient complications. The objective method of using a manometer is recommended to keep safe cuff pressure values (20‒30 cm H2O). However, as manometers are not readily available, anesthesiologists use subjective methods. We aimed to assess appropriateness of a subjective method for attaining cuff pressure and the expertise level of manometer handling among anesthesiology staff and residents in a university teaching hospital. Methods: Prospective observational study, recruiting participants that performed tracheal intubation and the subjective method for tube cuff inflation. Patients with difficult airway, larynx and trachea anatomic abnormality and emergency procedures were not included. Up to 60 minutes after tracheal intubation, an investigator registered the cuff pressure using an aneroid manometer (AMBU®) connected to the tube pilot balloon. Results: Forty-seven anesthesiologists were included in the study - 24 residents and 23 staff. Mean (SD) and medians (IQR) measured in cmH2O were, respectively, 52.5 (27.1) and 50 (30‒70). We registered 83% of measurements outside the recommended pressure range, with no difference between specialists and residents. The level of expertise with the objective method was also similar in both groups. Pressure adjustments were performed in 76.6% of cases. Conclusion: The subjective method for inflating the tracheal tube cuff resulted in a high rate of inadequate cuff pressures, with no difference in performance between anesthesiology specialists and residents.


Resumo Justificativa e objetivos: O controle inadequado da pressão dos balonetes dos tubos traqueais pode resultar em complicações. A técnica objetiva com uso de manômetro é a recomendada para manutenção de valores seguros de pressão (20-30 cm H2O). Mas como ese instrumento é pouco disponível, os anestesiologistas recorrem a técnicas subjetivas. O objetivo deste estudo foi avaliar a adequação da técnica subjetiva para obtenção das pressões dos balonetes e o nível de experiência com uso do manômetro entre médicos especialistas e residentes de anestesiologia de um Hospital Universitário. Método: Estudo observacional prospectivo, com participantes que realizaram intubação traqueal e técnica subjetiva para insuflação dos balonetes. Pacientes com via aérea difícil, anormalidades anatômicas de laringe e traqueia, risco de broncoaspiração e os casos de emergência não foram incluídos. Até 60 minutos após a intubação, um investigador registrava a pressão do balonete utilizando um manômetro aneroide (AMBU®) conectado ao balonete guia do tubo. Resultados: Quarenta e sete anestesiologistas foram incluídos no estudo - 24 residentes e 23 especialistas. As pressões (cm H2O) média (DP) e mediana (IQR) encontradas foram, respectivamente, 52,5 (27,1) e 50 (30-70). Da amostra, 83% estavam fora da faixa adequada de pressão, sem diferença entre especialistas e residentes. O nível de experiência com a técnica objetiva também foi semelhante entre os grupos. Correção da pressão foi realizada em 76,6% dos casos. Conclusões: A técnica subjetiva para insuflar os balonetes dos tubos traqueais resultou em alta prevalência de pressões inadequadas, sem diferença no desempenho entre especialistas e residentes.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Aged , Young Adult , Internship and Residency , Anesthesiology/education , Middle Aged , Prospective Studies , Intubation, Intratracheal/instrumentation , Intubation, Intratracheal/methods
11.
Einstein (Säo Paulo) ; 18: eAO4805, 2020. tab, graf
Article in English | LILACS | ID: biblio-1039729

ABSTRACT

ABSTRACT Objective To simulate different diameters of endotracheal tubes and to verify the fluid dynamics aspects by means of flow and resistance measurements. Methods Fluid dynamics software was used to calculate mean flow and airway resistance in endotracheal tube with a diameter of 6.0, 7.0, 7.5, 8.0, 9.0 and 10.0mm at normal body temperature and under constant pressure. The same measurements were taken in the fusion of the first 22cm of a 9.0mm endotracheal tube with 10.0mm diameter, and with the end part in 12cm of a 6.0mm endotracheal tube with 7.0mm diameter. Results The fusion of the first 22cm of an endotracheal tube of 10.0mm diameter with the terminal part in 12cm of an endotracheal tube of 6.0mm diameter, preserving the total length of 34cm, generated average flow and airway resistance similar to that of a conventional 7.5mm endotracheal tube. Conclusion This simulation study demonstrates that a single-sized endotracheal tube may facilitate endotracheal intubation without causing increased airway resistance.


RESUMO Objetivo Simular diferentes diâmetros de tubos endotraqueais e verificar os aspectos fluidinâmicos, considerando medições de fluxo e resistência. Métodos Foi utilizado um software de fluidinâmica para calcular o fluxo médio e a resistência das vias aéreas nos tubos endotraqueais com diâmetro de 6,0, 7,0, 7,5, 8,0, 9,0 e 10,0mm, em temperatura corporal normal e pressão constante. As mesmas medidas foram realizadas na fusão dos primeiros 22cm de um tubo endotraqueal de 9,0 e 10,0mm de diâmetro, com a parte terminal em 12cm de um tubo endotraqueal de 6,0 e 7,0mm de diâmetro. Resultados A fusão dos primeiros 22cm de um tubo endotraqueal de diâmetro 10,0 mm com a parte terminal em 12cm de um tubo endotraqueal de 6,0mm de diâmetro, preservando o comprimento total de 34cm, gerou fluxo médio e resistência de vias aéreas semelhantes aos de um tubo endotraqueal convencional de 7,5mm. Conclusão Um tubo endotraqueal de tamanho único pode facilitar a intubação endotraqueal, sem causar aumento de resistência na via aérea.


Subject(s)
Computer Simulation , Equipment Design/instrumentation , Intubation, Intratracheal/instrumentation , Respiration, Artificial/instrumentation , Airway Resistance , Intubation, Intratracheal/methods
12.
Rev. chil. fonoaudiol. (En línea) ; 18: 1-14, nov. 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-1095115

ABSTRACT

La evidencia internacional recomienda diferente presión de 'cuff' a utilizar en usuarios con vía aérea artificial. En Chile,algunas instituciones sanitarias han creado protocolos internos referenciando dicha evidencia. Sin embargo, no existe una guía nacional, por lo que distintos profesionales utilizan diferentes criterios. El objetivo de este trabajo fue crear un cuestionario válido y confiable sobre el uso de técnicas y manejo de la presión del 'cuff' en usuarios adultos con vía aérea artificial por parte de profesionales de salud en Chile. Para ello, se utilizó un diseño cualitativo-cuantitativo, descriptivo y longitudinal. El proceso fue dividido en tres fases. En la fase A sedesarrolló un cuestionario en inglés que fue traducido al español con ayuda de tres hablantes hispanos nativos. En la fase B diez expertos chilenos en el manejo de usuarios con vía aérea artificial analizaron la herramienta y recomendaron modificaciones de algunos componentes del cuestionario. Después dedichos cambios, la herramienta fue validada a través de un Índice de Validez de Contenido. En la fase C treinta y tres profesionales de la salud chilenos respondieron voluntariamente el cuestionario en dos ocasiones con un lapso de treinta días entre respuestas, con el fin de medir la confiabilidad a través de 'test-retest'. El cuestionario desarrollado tuvo una validez de 0,93 mientras que 72,73% y 27,27% de sus ítems tuvieron excelente y buena confiabilidad respectivamente. Lo anterior permite concluir que este cuestionario cumple con su objetivo y servirá para conocer las técnicas y presiones del 'cuff' que profesionales de la salud en Chile utilizan para el manejo de usuarios adultos con vía aérea artificial.


International evidence recommends different cuff pressure to use with patients with an artificial airway. In Chile, some health institutions have created internal protocols referencing this evidence. However, there is no national guidelines, thus different health professionals use different criteria to manage these patients. The present researched aimed at creating a valid and reliable questionnaire on the use and management of the cuff pressure in adult patients with an artificial airway for health professionals in Chile. A qualitative-quantitative, descriptive and longitudinal design was implemented. This process was divided in three phases. In phase A, a draft of the questionnaire was developed in English and then translated to Spanish by three native Spanish speakers. In phase B, ten Chilean, ten clinical experts in the management of users with artificial airway analysed the tool and recommended modifications of some of the questionnaire. After the modifications, the tool was validated through a Content Validity Index form. In phase C, thirty-three Chilean health professional voluntarily responded the questionnaire twice, with a period of thirty days between responses, to measure the reliability of the tool through 'test-retest'. The questionnaire had a validity of .93, while 72.73% and 27.27% of the items had an excellent reliability and good reliability, respectively. This allows us to conclude that this questionnaire meets its objectives and will serve to know the techniques and pressure of the cuff that health professionals in Chile use for the management of adult patients with an artificial airway.


Subject(s)
Humans , Surveys and Questionnaires , Clinical Competence , Health Personnel , Intubation, Intratracheal/instrumentation , Pressure , Respiration, Artificial , Tracheostomy , Chile , Reproducibility of Results , Longitudinal Studies , Airway Management
13.
Rev. bras. anestesiol ; 68(5): 499-506, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-958342

ABSTRACT

Abstract Background and objectives We compared the efficiency of the King Vision video laryngoscope and the Macintosh laryngoscope, when used by experienced anesthesiologists on adult patients with varying intubating conditions, in a prospective randomized controlled clinical trial. Methods A total of 388 patients with an American Society of Anesthesiologists physical status of I or II, scheduled for general anesthesia with endotracheal intubation. Each patient was intubated with both laryngoscopes successively, in a randomized order. Intubation success rate, time to best glottic view, time to intubation, time to ventilation, Cormack-Lehane laryngoscopy grades, and complications related to the laryngoscopy and intubation were analyzed. Results and conclusions First pass intubation success rates were similar for the King Vision and the Macintosh (96.6% vs. 94.3%, respectively, p > 0.05). King Vision resulted in a longer average time to glottic view (95% CI 0.5-1.4 s, p < 0.001), and time to intubation (95% CI 3-4.6 s, p < 0.001). The difference in time to intubation was similar when unsuccessful intubation attempts were excluded (95% CI 2.8-4.4 s, p < 0.001). Based on the modified Mallampati class at the preoperative visit, the King Vision improved the glottic view in significantly more patients (220 patients, 56.7%) compared with the Macintosh (180 patients, 46.4%) (p < 0.001). None of the patients had peripheral oxygen desaturation below 94%. Experienced anesthesiologists may obtain similar rates of first pass intubation success and airway trauma with both laryngoscopes. King Vision requires longer times to visualize the glottis and to intubate the trachea, but does not cause additional desaturation.


Resumo Justificativa e objetivos Comparamos a eficiência do videolaringoscópio King Vision e do laringoscópio Macintosh, quando usados por anestesiologistas experientes em pacientes adultos com diferentes condições de intubação, em um estudo clínico prospectivo randomizado e controlado. Métodos Foram selecionados 388 pacientes com estado físico ASA I ou II (de acordo com a classificação da American Society of Anesthesiologists - ASA), programados para anestesia geral com intubação traqueal. Cada paciente foi intubado com ambos os laringoscópios sucessivamente, em uma ordem aleatória. A taxa de sucesso da intubação, o tempo até a melhor visibilização da glote, o tempo de intubação, o tempo de ventilação, a classificação de Cormack-Lehane (graus) e as complicações relacionadas à laringoscopia e intubação foram analisados. Resultados e conclusões As taxas de sucesso na intubação na primeira tentativa foram similares para o King Vision e o Macintosh (96,6% vs. 94,3%, respectivamente, p > 0,05). As médias dos tempos até a melhor visibilização da glote (IC 95% 0,5-1,4 s, p < 0,001) e de intubação (IC 95% 3-4,6 s, p < 0,001) foram maiores no King Vision. A diferença no tempo de intubação foi semelhante quando as tentativas malsucedidas de intubação foram excluídas (IC 95% 2,8-4,4 s, p < 0,001). Com base na classificação de Mallampati modificada na consulta pré-operatória, o King Vision melhorou significativamente a visibilização da glote em mais pacientes (220 pacientes, 56,7%) em comparação com o Macintosh (180 pacientes, 46,4%) (p < 0,001). Nenhum dos pacientes apresentou dessaturação periférica de oxigênio abaixo de 94%. Os anestesiologistas experientes podem obter taxas semelhantes de sucesso na primeira tentativa de intubação e de traumas das vias aéreas com ambos os laringoscópios. O King Vision requer tempos mais longos até a visibilização da glote e de intubação traqueal, mas não causa dessaturação adicional.


Subject(s)
Airway Management/methods , Intubation, Intratracheal/instrumentation , Anesthesia, General/instrumentation , Laryngoscopy/methods , Video-Assisted Surgery/methods
14.
Arch. argent. pediatr ; 116(3): 172-178, jun. 2018. ilus, tab, graf
Article in English, Spanish | LILACS, BINACIS | ID: biblio-950006

ABSTRACT

Introducción. Es difícil determinar el tamaño adecuado y la posición traqueal correcta del tubo endotraqueal (TET) en los niños. El objetivo de este estudio fue determinar el diámetro traqueal en los niños mediante el uso de la técnica ecográfica como herramienta objetiva y compararlo con fórmulas de uso frecuente basadas en la edad para calcular el tamaño del TET. Pacientes y métodos. Se inscribió de forma prospectiva a pacientes a los que se les iba a practicar una cirugía programada en un hospital pediátrico de alta complejidad. Se determinó el diámetro traqueal transversal infraglótico mediante ecografía. Un anestesista, que no podía ver el examen ecográfico, determinó el tamaño del tubo y realizó la intubación evaluando el espacio entre las cuerdas vocales con la ayuda de la vista directa de un laringoscopio. Se registraron los diámetros traqueales medidos con las ecografías, los diámetros de los tubos, los controles de presión/pérdida de aire y los resultados de los cálculos del tamaño de los tubos basados en la edad. Resultados. Se inscribieron en total 61 pacientes con una media de edad de 12 ± 4,21 (2-17) y un peso medio de 38 ± 22,94 (10-106). El diámetro de la tráquea en la medición ecográfica fue de 13.0 (11,4-15,1). El diámetro externo del TET determinado por el anestesista fue de 8,42 ± 1,43, el calculado por la fórmula de Cole fue de 9.0 ± 1,42, el calculado por la fórmula de Khine fue de 7,67 ± 1,46 y el calculado por la fórmula de Motoyama fue de 8,33 ± 1,42. En 31 (47,7%) pacientes, se insufló el manguito después de la colocación del TET debido a la pérdida de aire. El tubo tuvo que reemplazarse por uno más grande a causa de la pérdida excesiva de aire en un paciente. Se halló una correlación intraclase deficiente entre los cálculos del diámetro traqueal determinado por ecografía y los cálculos del diámetro del tubo basado en la edad (diámetro traqueal frente a Cole -amp;#91;0,273-amp;#93;, Khine -amp;#91;0,207-amp;#93; y Motoyama -amp;#91;0,230-amp;#93;). Conclusión. La medición ecográfica del diámetro traqueal transversal es un método adecuado para determinar el tamaño correcto del tubo endotraqueal en comparación con las fórmulas basadas en la edad.


Background. It is hard to determine the appropriate size and correct tracheal position of endotracheal tube (ETT) in children. The aim of this study is to determine tracheal diameter in children by using ultrasonography technique as objective tool and compare it with commonly used aged based formulas for the ETT size estimation. Patients and methods. Patients undergoing elective surgery in a tertiary children's hospital were prospectively enrolled. The subglottic transverse tracheal diameter was determined by ultrasonography. An anesthesiologist who was blind to ultrasonographic examination, determined the tube size and performed intubation by evaluating the space between vocal cords with the help of a direct laryngoscopic view. Ultrasonographically measured tracheal diameter, tube diameters, leak/pressure controls, and results of age-based tube size calculations were recorded. Results. A total of 61 patients, mean age of 12 ± 4.21 (217) years and mean weight of 38 ± 22.94 (10-106) kg were enrolled. The diameter of trachea measured by ultsonography was 13.0 (11.4-15.1). Outer diameter (mm) of the ETT determined by anesthesiologist was 8.42 ± 1.43; calculated by Cole formula was 9.0 ± 1,42; calculated by Khine formula was 7.67 ± 1.46; calculated by Motoyama formula was 8.33 ± 1.42. ETT cuff was inflated after ETT placement due to leak in 31 (47.7%) patients. Tube was replaced by a larger tube due to excessive leak in one patient. Poor intraclass correlation was found between ultrasonographically determined tracheal diameter and aged based tube diameter calculations (tracheal diameter vs Cole -amp;#91;0.273-amp;#93;, Khine -amp;#91;0.207-amp;#93;, and Motoyama -amp;#91;0.230-amp;#93;). Conclusion. Ultrasonographical determination of transverse tracheal diameter is a suitable method for determining the correct endotracheal tube size when compared with the age based formulas.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Trachea/diagnostic imaging , Ultrasonography/methods , Intubation, Intratracheal/methods , Laryngoscopy/methods , Prospective Studies , Age Factors , Equipment Design , Tertiary Care Centers , Hospitals, Pediatric , Intubation, Intratracheal/instrumentation , Anesthesia/methods
15.
Rev. bras. anestesiol ; 68(3): 318-321, May-June 2018. graf
Article in English | LILACS | ID: biblio-958298

ABSTRACT

Abstract Background: Selective neonatal left mainstem bronchial intubation to treat right lung disease is typically achieved with elaborate maneuvers, instrumentation and devices. This is often attributed to bronchial geometry which favors right mainstem entry of an endotracheal tube deliberately advanced beyond the carina. Case summary: A neonate with severe bullous emphysema affecting the right lung required urgent non-ventilation of that lung. We achieved left mainstem bronchial intubation by turning the endotracheal tube 180° such that the Murphy's eye faced the left instead of the right, and simulated a left-handed intubation by slightly orientating the endotracheal tube such that its concavity faced the left instead of the right as in a conventional right-handed intubation. Conclusion: Urgent intubation of the left mainstem bronchus with an endotracheal tube can be easily achieved by recognizing that it is the position of the endotracheal tube tip and the direction of its concavity that are the chief determinants of which bronchus an endotracheal tube goes when advanced. This is important in critically ill neonates as the margin of safety and time window are small, and the absence of double-lumen tubes. Use of fiberoptic bronchoscope and blockers should be reserved as backup plans.


Resumo Justificativa: A intubação seletiva neonatal do brônquio principal esquerdo para tratar a doença pulmonar direita é tipicamente feita com elaboradas manobras, instrumentação e dispositivos. Isso é frequentemente atribuído à geometria brônquica que favorece a entrada principal direita de um tubo endotraqueal (TET) deliberadamente avançado para além da carina. Resumo do caso: Recém-nascido com enfisema bolhoso grave que afetava o pulmão direito e precisou com urgência da não ventilação desse pulmão. Para conseguir a intubação brônquica esquerda fizemos uma rotação de 180° do TET, de forma que o olho de Murphy ficasse voltado para a esquerda, e não para a direita, e para simular uma intubação à esquerda orientamos ligeiramente o TET, de modo que sua concavidade virasse para a esquerda em vez de para a direita, como em uma intubação convencional à direita. Conclusão: A intubação urgente do brônquio principal esquerdo com um TET pode ser facilmente obtida se reconhecermos que é a posição da ponta do TET e a direção de sua concavidade que determinam para qual brônquio o TET irá quando avançado. Isso é importante em neonatos criticamente doentes diante da margem de segurança e janela de tempo pequenas e na ausência de tubos de duplo lúmen. O uso de broncofibroscópio e bloqueadores deve ser considerado como planos de segurança.


Subject(s)
Humans , Infant, Newborn , Pulmonary Emphysema/therapy , Intubation, Intratracheal/instrumentation , Intensive Care, Neonatal , Bronchoscopes
16.
Rev. bras. anestesiol ; 68(2): 200-204, Mar.-Apr. 2018. tab, graf
Article in English | LILACS | ID: biblio-897815

ABSTRACT

Abstract In recent years, laser resection of lung metastases has been established as the standard procedure worldwide. To avoid airway fire, it is necessary to collapse the surgical lung. The selective lobar bronchial blockade is a technique that allows one-lung ventilation while the operated lobe is collapsed in patients with previous pulmonary resection requiring subsequent resection or with limited pulmonary reserve. We report a clinical case about our experience of a selective lobar bronchial blockade technique with a bronchial blocker (Coopdech endobronchial blocker) that was employed successfully with a double-lumen endotracheal tube in a patient with previous contralateral pulmonary resection who was scheduled for atypical resections of pulmonary metastases by laser. We selectively blocked the right intermediate bronchus for management of hypoxemia during one-lung ventilation. This technique provided adequate ventilation and oxygenation during surgery, avoiding the need of two-lung ventilation during lung metastases resection by laser. Conclusion: This case shows that if a properly positioned double-lumen tube was already in place and the patient does not tolerate one-lung ventilation because of hypoxemia, it would be possible to provide selective lobar blockade by placing a bronchial blocker through the lumen of the double-lumen tube, avoiding the use of continuous positive airway pressure during laser surgery. This technique does not disturb the operative field or interrupt the operative procedure during resection by laser, which would occur during two-lung ventilation or used of continuous positive airway pressure.


Resumo Nos últimos anos, a ressecção de metástases pulmonares com o uso de laser foi estabelecida como o procedimento padrão em todo o mundo. Para evitar queimadura das vias aéreas, o colapso cirúrgico do pulmão é necessário. O bloqueio brônquico seletivo é uma técnica que permite a ventilação de um lobo, enquanto o lobo operado é colapsado nos pacientes com ressecção pulmonar anterior que requerem ressecção subsequente ou que possuem reserva pulmonar limitada. Relatamos um caso clínico de nossa experiência com a técnica de bloqueio brônquico seletivo com bloqueador brônquico (bloqueador endobrônquico Coopdech), usado com sucesso com um tubo endotraqueal de duplo lúmen em um paciente com ressecção pulmonar contralateral prévia, agendado para ressecção atípica de metástases pulmonares com o uso de laser. Seletivamente bloqueamos o brônquio intermediário direito para o controle de hipoxemia durante a ventilação monopulmonar. Essa técnica proporcionou ventilação e oxigenação adequadas durante a cirurgia, evitando a necessidade de ventilar os dois pulmões durante a ressecção de metástases pulmonares com o uso de laser. Conclusão: Este caso mostra que, se um tubo de duplo lume estiver corretamente posicionado e o paciente não tolerar a ventilação monopulmonar devido à hipoxemia, seria possível fornecer bloqueio lobar seletivo com a colocação de um bloqueador brônquico através do lume do tubo de duplo lume, evitando o uso de pressão positiva contínua de vias aéreas (PPCVA) durante a cirurgia a laser. Essa técnica não interfere no campo operatório ou interrompe o procedimento durante a ressecção por laser, que poderia ocorrer durante a ventilação dos dois pulmões ou uso de PPCVA.


Subject(s)
Humans , Male , Adult , Equipment Design , Laser Therapy , One-Lung Ventilation/instrumentation , Intubation, Intratracheal/instrumentation , Lung Neoplasms/surgery , Pulmonary Surgical Procedures/instrumentation , Pulmonary Surgical Procedures/methods , Lung Neoplasms/secondary
17.
Braz. j. med. biol. res ; 51(2): e6825, 2018.
Article in English | LILACS | ID: biblio-1019561

ABSTRACT

This study aimed to evaluate the feasibility and performance of Arndt-endobronchial blocker (Arndt) combined with laryngeal mask airway (LMA) compared with left-sided double-lumen endobronchial tube (L-DLT) in morbidly obese patients in one-lung ventilation (OLV). In a prospective, randomized double-blind controlled clinical trial, 80 morbidly obese patients (ASA I-III, aged 20-70) undergoing general anesthesia for elective thoracic surgeries were randomly allocated into groups Arndt (n=40) and L-DLT (n=40). In group Arndt, a LMA™ Proseal was placed followed by an Arndt-endobronchial blocker. In group L-DLT, patients were intubated with a left-sided double-lumen endotracheal tube. Primary endpoints were the airway establishment, ease of insertion, oxygenation, lung collapse and surgical field exposure. Results showed similar ease of airway establishment and tube/device insertion between the two groups. Oxygen arterial pressure (PaO2) of patients in the Arndt group was significantly higher than L-DLT (154±46 vs 105±52 mmHg; P<0.05). Quality of lung collapse and surgical field exposure in the Arndt group was significantly better than L-DLT (effective rate 100 vs 90%; P<0.05). Duration of surgery and anesthesia were significantly shorter in the Arndt group (2.4±1.7 vs 3.1±1.8 and 2.8±1.9 vs 3.8±1.8 h, respectively; P<0.05). Incidence of hoarseness of voice and incidence and severity of throat pain at the post-anesthesia care unit and 12, 24, 48, and 72 h after surgery were significantly lower in the Arndt group (P<0.05). Findings suggested that Arndt-endobronchial blocker combined with LMA can serve as a promising alternative for morbidly obese patients in OLV in thoracic surgery.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Obesity, Morbid/surgery , Laryngeal Masks/standards , Thoracic Surgical Procedures/instrumentation , One-Lung Ventilation/instrumentation , Intubation, Intratracheal/instrumentation , Pain, Postoperative/etiology , Pulmonary Atelectasis , Time Factors , Pharyngitis/etiology , Ventilators, Mechanical/standards , Double-Blind Method , Prospective Studies , Reproducibility of Results , Treatment Outcome , Thoracic Surgical Procedures/methods , Equipment Design , One-Lung Ventilation/methods , Operative Time , Intubation, Intratracheal/methods
18.
Braz. j. med. biol. res ; 51(2): e6825, 2018. tab, graf
Article in English | LILACS | ID: biblio-889030

ABSTRACT

This study aimed to evaluate the feasibility and performance of Arndt-endobronchial blocker (Arndt) combined with laryngeal mask airway (LMA) compared with left-sided double-lumen endobronchial tube (L-DLT) in morbidly obese patients in one-lung ventilation (OLV). In a prospective, randomized double-blind controlled clinical trial, 80 morbidly obese patients (ASA I-III, aged 20-70) undergoing general anesthesia for elective thoracic surgeries were randomly allocated into groups Arndt (n=40) and L-DLT (n=40). In group Arndt, a LMA™ Proseal was placed followed by an Arndt-endobronchial blocker. In group L-DLT, patients were intubated with a left-sided double-lumen endotracheal tube. Primary endpoints were the airway establishment, ease of insertion, oxygenation, lung collapse and surgical field exposure. Results showed similar ease of airway establishment and tube/device insertion between the two groups. Oxygen arterial pressure (PaO2) of patients in the Arndt group was significantly higher than L-DLT (154±46 vs 105±52 mmHg; P<0.05). Quality of lung collapse and surgical field exposure in the Arndt group was significantly better than L-DLT (effective rate 100 vs 90%; P<0.05). Duration of surgery and anesthesia were significantly shorter in the Arndt group (2.4±1.7 vs 3.1±1.8 and 2.8±1.9 vs 3.8±1.8 h, respectively; P<0.05). Incidence of hoarseness of voice and incidence and severity of throat pain at the post-anesthesia care unit and 12, 24, 48, and 72 h after surgery were significantly lower in the Arndt group (P<0.05). Findings suggested that Arndt-endobronchial blocker combined with LMA can serve as a promising alternative for morbidly obese patients in OLV in thoracic surgery.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Obesity, Morbid/surgery , Laryngeal Masks/standards , One-Lung Ventilation/instrumentation , Intubation, Intratracheal/instrumentation , Pulmonary Atelectasis , Time Factors , Double-Blind Method , Prospective Studies , Treatment Outcome , Equipment Design , One-Lung Ventilation/methods , Operative Time , Intubation, Intratracheal/methods
19.
Rev. bras. anestesiol ; 67(6): 659-662, Nov.-Dec. 2017. graf
Article in English | LILACS | ID: biblio-897785

ABSTRACT

Abstract Objective The aim of this study is to report a case of a clinically significant obstruction during mechanical ventilation caused by the dissection of the wired endotracheal tube's lumen during general anesthesia in a pediatric patient. Case report A 12-years old patient undergoing general anesthesia for open appendectomy was intubated with a wired endotracheal tube and difficult removal of the guide. After starting the mechanical ventilation, there was increased expiratory fraction of CO2 and need for increased inspiratory pressure. Chance of complications with higher incidences were raised and treated unsuccessfully. Finally, during patient reintubation, the dissection of the endotracheal tube lumen was observed, and ventilation was restored to normal. Conclusion Anesthesia involves numerous possible complications. Suspicion and constant vigilance are essential for early diagnosis and treatment of any threat to the individual integrity. This case is relevant for emphasizing a possible very rare complication related to airway, which can quickly cause hypoxia and irreversible damage. Thus, this case contributes to the detection of this complication more frequently.


Resumo Objetivo Relatar um caso de obstrução à ventilação mecânica clinicamente significativa causada por dissecção do lúmen do tubo endotraqueal aramado durante anestesia geral em um paciente pediátrico. Relato Paciente de 12 anos submetido à anestesia geral para apendicectomia aberta foi intubado com tubo endotraqueal aramado e retirada de guia do tubo difícil. Após iniciar a ventilação mecânica houve aumento da fração expiratória de CO2 e necessidade de aumento da pressão inspiratória. Hipóteses de complicações com maiores incidências foram aventadas e tratadas sem sucesso. Finalmente, ao reintubar o doente, foi verificada dissecção do lúmen do tubo endotraqueal e a ventilação foi restaurada à normalidade. Conclusão O ato anestésico envolve inúmeras possíveis complicações. A suspeição e a vigilância constantes são essenciais para diagnosticar e tratar precocemente qualquer ameaça à integridade do indivíduo. O presente caso é relevante por enfatizar uma possível complicação muito incomum relacionada às vias aéreas capaz de causar hipóxia e danos irreversíveis rapidamente. Dessa forma, o caso contribui para que essa intercorrência seja detectada com maior frequência.


Subject(s)
Humans , Male , Child , Equipment Failure , Intraoperative Complications/etiology , Intubation, Intratracheal/instrumentation , Anesthesia, General/instrumentation
20.
Rev. bras. enferm ; 70(6): 1145-1150, Nov.-Dec. 2017. tab
Article in English | LILACS, BDENF | ID: biblio-898320

ABSTRACT

ABSTRACT Objective: Verify the changes of endotracheal cuff pressure before and after oral hygiene, head-of-bed elevation at 0º, 30º, and 60º, change in body position, aspiration of the endotracheal tube, and in-bed bathing. Method: The study sample was composed of 88 patients. We performed 3,696 checks from July to September 2014. Results: Pressure values were analyzed in seven nursing care in the morning. Six of them were significantly altered before and after nursing procedure. In the afternoon, five of the health care provided were altered, and in the evening, only two. Most of pressure values were below recommended. Conclusion: There were differences before and after health care provided, showing changes in cuff pressure. In-bed bathing and head-of-bed elevation at 30º were the ones that most altered pressure values in the three working shifts. Therefore, it is necessary to measure cuff pressure at least twice per working shift, preferably after bathing.


RESUMO Objetivo: Verificar As mudanças de pressão do balonete traqueal antes e após higiene oral, elevação da cabeceira do leito a 0 º, 30 º e 60 º, mudança de decúbito, aspiração traqueal e banho no leito. Método: A população foi composta por 88 pacientes, totalizando 3696 verificações de julho a setembro de 2014. Resultados: Os valores de pressão foram analisados em sete procedimentos de cuidados de enfermagem realizados na parte da manhã. Seis apresentaram estavam alterações significativas antes e após a realização dos procedimentos de enfermagem. No período da tarde, cinco dos procedimentos de cuidados de enfermagem realizados apresentaram alterações, e à noite, apenas dois. A maioria dos valores de pressão estava abaixo dos valores recomendados. Conclusão: Houve diferenças antes e após a realização dos cuidados, demonstrando alteração da pressão do balonete. O banho no leito e a elevação da cabeceira do leito a 30 º apresentou valores de pressão mais alterados nos três turnos de trabalho. Portanto, é necessário medir a pressão do balonete pelo menos duas vezes por turno de trabalho, de preferência após o banho.


RESUMEN Objetivo: verificar los câmbios de presión del manguito traqueal antes y después de la higiene oral, elevación de la cabecera del lecho a 0º, 30º y 60º, cambio de decúbito, aspiración traqueal y baño en el lecho. Método: La población fue compuesta por 88 pacientes, totalizando 3696 verificaciones de julio a septiembre de 2014. Resultados: Los valores de presión fueron analisados em siete procedimentos de atención de enfermeira realizados em la parte de la mañana. Seis apresentaron alteraciones significativas antes y después de la realización de los procedimentos de enfermería. En el periodo de la tarde, cinco de los procedimentos de atención de enfermería realizados apresentaron alteraciones, y por la noche, sólo dos. Conclusión: Hubo diferencias antes y después de la realización de la atención de enfermería, demostrando alteración de la presión del manguito. El baño em el lecho y la elevación de la cabecera del lecho a 30º presentó valores de presíonmásalterados em los tres turnos de trabajo, preferentemente después del baño.


Subject(s)
Humans , Male , Female , Aged , Pressure , Intubation, Intratracheal/instrumentation , Nursing Care/standards , Trachea/physiology , Weights and Measures , Brazil , Middle Aged , Monitoring, Physiologic/methods
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