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1.
Rev. cuba. anestesiol. reanim ; 20(1): e644, ene.-abr. 2021. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1156369

ABSTRACT

Introducción: La craneotomía con el paciente despierto es útil para lograr resecciones cerebrales amplias de lesiones de áreas elocuentes. Objetivo: Presentar un caso al que se le realizó la técnica dormido- despierto. Método: Se realizó la inducción de la anestesia con propofol/fentanilo/rocuronio y se colocó una mascarilla laríngea. Después del bloqueo de escalpe se mantuvo la infusión de propofol/fentanilo y lidocaína hasta que se realizó la craneotomía. Se disminuyó la velocidad de infusión y se mantuvo de esta manera hasta finalizada la intervención. Resultados: Se logró el despertar del paciente a los 13 minutos de reducida la infusión. Se mantuvo buena estabilidad hemodinámica, sin depresión respiratoria ni otras complicaciones. El paciente se mantuvo colaborador, respondió preguntas y movilizó sus extremidades. No presentó complicaciones posoperatorias. Discusión: Dentro de las técnicas anestésicas utilizadas en el mundo la dormido- despierto-dormido es la más popular; sin embargo, constituye una alternativa no dormir nuevamente al paciente ni reinstrumentar la vía respiratoria. Los medicamentos más empleados son el propofol/remifentanilo, aunque la comparación con otros opioides no arrojan diferencias significativas; aunque sí supone un beneficio adicional la dexmedetomidina. Conclusiones: La craneotomía con el paciente despierto es posible de realizar en el entorno hospitalario siempre que exista un equipo multidisciplinario que consensue las mejores acciones médicas para el paciente(AU)


Introduction: Awake craniotomy is useful to achieve wide brain resections of lesions in eloquent areas. Objective: To present the case of a patient who was operated on with the asleep-awake-asleep technique. Method: Anesthesia was induced with propofol-fentanyl-rocuronium and a laryngeal mask was placed. After scalp block, the propofol-fentanyl and lidocaine infusion was maintained until craniotomy was performed. The infusion rate was decreased and remained this way until the end of the intervention. Results: The patient was awakened thirteen minutes after the infusion was reduced. Good hemodynamic stability was maintained, without respiratory depression or other complications. The patient remained collaborative, answered questions, and mobilized his limbs. He had no postoperative complications. Discussion: Among the anesthetic techniques used in the world, asleep-awake-asleep is the most popular. However, it is an alternative not to put the patient back to sleep or re-instrument the airway. The most commonly used drugs are propofol-remifentanil, although the comparison with other opioids does not show significant differences, except for dexmedetomidine, which does represent an additional benefit. Conclusions: Awake craniotomy is possible to be performed in the hospital setting as long as there is a multidisciplinary team that agrees on the best medical actions for the patient(AU)


Subject(s)
Humans , Male , Craniotomy/methods , Intraoperative Awareness/prevention & control , Hemodynamic Monitoring/methods , Laryngeal Masks/standards
2.
Rev. cuba. cir ; 60(1): e1037, ene.-mar. 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1289373

ABSTRACT

Introducción: El abordaje de la vía aérea del paciente bajo cirugía laparoscópica representa múltiples retos para el anestesiólogo. Objetivo: Evaluar la efectividad y seguridad de tres dispositivos supraglóticos con acceso gástrico en el abordaje de la vía aérea de pacientes bajo colecistectomía laparoscópica. Métodos: Se realizó un estudio cuasiexperimental, prospectivo, longitudinal en el Hospital Universitario "General Calixto García", entre el 2017 y 2019. Se constituyeron tres grupos de 40 pacientes, según dispositivo: máscara laríngea proseal, máscara laríngea supreme y máscara I-gel. Se estudió: tiempo de inserción, número de intentos para colocación, facilidad de inserción de la sonda nasogástrica, presión y suficiencia de sellado orofaríngeo, presión pico con neumoperitoneo y complicaciones. Las variables cualitativas se analizaron con frecuencias absolutas y relativas, y las cuantitativas con medias y desviación estándar. Para la asociación entre variables cualitativas, se utilizó la prueba de chi-cuadrado, y el análisis de varianza para la asociación entre cuantitativas y cualitativas. Se consideró significativo valor de p < 0,05. Resultados: La máscara laríngea supreme se insertó con éxito al primer intento en la mayoría de los pacientes (p = 0,004). La I-gel registró el menor tiempo de inserción (10,05 ± 1,75 seg) y la Supreme mayor facilidad para la sonda nasogástrica (p < 0,001). La mayor presión de sellado fue con la máscara laríngea proseal (30,87 ± 2,60 cmH2O). Las complicaciones fueron pocas y similares con cada uno. Conclusiones: La utilización de dispositivos supraglóticos con acceso gástrico demostró seguridad y efectividad en pacientes intervenidos por colecistectomía laparoscópica(AU)


Introduction: Airway management in the patient undergoing laparoscopic surgery presents multiple challenges for the anesthesiologist. Objective: To assess the effectiveness and safety of three supraglottic devices with gastric access in the airway management in patients undergoing laparoscopic cholecystectomy. Methods: A quasiexperimental, prospective and longitudinal study was carried out, between 2017 and 2019, at General Calixto García University Hospital. Three groups of forty patients were made up, according to the usage of each device: ProSeal laryngeal mask, Supreme laryngeal mask, and I-gel mask. The following variables were studied: insertion time, number of placement attempts, ease of insertion of nasogastric tube, pressure and sufficiency of oropharyngeal sealing, peak pressure with pneumoperitoneum, and complications. Qualitative variables were analyzed with absolute and relative frequencies; and quantitative variables, with means and standard deviation. For the association between qualitative variables, the chi-square test was used, while variance analysis was used for the association between quantitative and qualitative variables. A value of P< 0.05 was considered significant. Results: The Supreme laryngeal mask was successfully inserted on the first attempt in most patients (P=0.004). The I-gel mask had the shortest insertion time (10.05±1.75 seconds), while the Supreme was the easiest for the nasogastric tube (P< 0.001). The highest sealing pressure was obtained with the ProSeal laryngeal mask (30.87±2.60 cmH2O). The complications were few and similar with each device. Conclusions: The use of supraglottic devices with gastric access showed safety and effectiveness in patients who underwent laparoscopic cholecystectomy(AU)


Subject(s)
Humans , Male , Female , Adult , Laryngeal Masks/adverse effects , Cholecystectomy, Laparoscopic/methods , Airway Management/methods , Prospective Studies , Longitudinal Studies
3.
Rev. ecuat. pediatr ; 21(3): 1-9, 31 Diciembre 2020.
Article in Spanish | LILACS | ID: biblio-1146530

ABSTRACT

Introducción: La máscara laríngea es el equipamiento con el objetivo de aumentar la calidad, seguridad, cuidado, sin embargo, a pesar de tener uso universal y alta eficacia para la ventilación no está exenta de complicaciones. El objetivo de la presente Investigación fue identificar la frecuencia de complicaciones con el uso de mascara laríngea en los hospitales públicos Vicente Corral Moscoso y José Carrasco en la ciudad de Cuenca. Métodos: Es un estudio observacional, descriptivo, prospectivo, en 220 pacientes pediátricos, ASA I , II y III intervenidos en cirugías electivas y emergentes bajo anestesia general en un intervalo de tiempo de 30 a 240 minutos, de todas las especialidades médicas quirúrgicas del año 2018 ,se utilizaron los diferentes tipos de máscara. La muestra se obtuvo aplicando la fórmula para población desconocida (n = (Z2 x p x q)/ e2), nivel de confianza (Z): 95%. (1.96) Margen de error (e): 5% Probabilidad de ocurrencia del evento (p): 15% Probabilidad de no ocurrencia del evento (q): 85%. Resultados: 220 casos ingresados al estudio. El índice de complicaciones laríngeas es 5.9% , frecuentemente la tos y secreción sanguinolenta, asociándose factores como mascara clásica, edad (2-5 años), tiempo mayor de 60 minutos, mayor número de intentos, ASA> I, estado nutricional sobrepeso, e insertar en formación. Conclusión: La máscara laríngea es validada como dispositivo en anestesia pediátrica por aprendizaje rápido, baja tasa de fracaso, menores complicaciones y utilidad en vías aéreas difíciles, Es insuficiente la evidencia para respaldar el uso de un determinado dispositivo por encima de otro


Introduction: The laryngeal mask is the equipment with the aim of increasing quality, safety, care, however, despite having universal use and high efficacy for ventilation, it is not without complications. The objective of this research was to identify the frequency of complications with the use of a laryngeal mask in the Vicente Corral Moscoso and José Carrasco public hospitals in the city of Cuenca. Methods: It is an observational, descriptive, prospective study in 220 pediatric patients, ASA I, II and III who underwent elective and emergent surgeries under general anesthesia in a time interval of 30 to 240 minutes, of all surgical medical specialties of the year 2018, the different types of mask were used. The sample was obtained by applying the formula for unknown population (n = (Z2 x p x q) / e2), confidence level (Z): 95%. (1.96) Margin of error (e): 5% Probability of occurrence of the event (p): 15% Probability of non-occurrence of the event (q): 85%. Results: 220 cases entered the study. The rate of laryngeal complications is 5.9%, frequently cough and bloody discharge, associating factors such as classic mask, age (2-5 years), time greater than 60 minutes, greater number of attempts, ASA> I, nutritional status, overweight, and insert in formation. Conclusion: The laryngeal mask is validated as a device in pediatric anesthesia due to rapid learning, low failure rate, fewer complications and usefulness in difficult airways. The evidence is insufficient to support the use of a certain device over another.


Subject(s)
Humans , Laryngeal Masks , Airway Management , Anesthesia, General , Child
4.
Rev. bras. anestesiol ; 70(3): 240-247, May-June 2020. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1137182

ABSTRACT

Abstract Background and objective: Sore throat is well recognized complaint after receiving general anesthesia. This study is conducted to compare the severity and frequency of postoperative sore throat in children undergoing elective surgery, following the use of Ambu laryngeal mask airway or I-gel®, who are able to self-report postoperative sore throat. Method: Seventy children, 6 to 16 years-old, undergoing elective surgery randomly allocated to either Ambu laryngeal mask (Ambu Group) or I-gel® (I-gel Group). After the procedure, patients were interviewed in the recovery room immediately, after one hour, 6 and 24 hours postoperatively by an independent observer blinded to the device used intra-operatively. Results: On arrival in the recovery room 17.1% (n = 6) of children of the Ambu Group complained of postoperative sore throat, against 5.7% in I-gel Group (n = 2). After one hour, the results were similar. After 6 hours, postoperative sore throat was found in 8.6% (n = 3) of the children in Ambu group vs. 2.9% (n = 1) in I-gel Group. After 24 hours, 2.9% (n = 1) of the children in Ambu Group complained of postoperative sore throat compared to none in I-gel Group. There was no significant difference found in the incidence of postoperative sore throat in both devices on arrival (p = 0.28); after 1 hour (p = 0.28); after 6 hours (p = 0.30); and after 24 hours (p = 0.31). The duration of the insertion of Ambu laryngeal mask was shorter and it was easier to insert than I-gel® (p = 0.029). Oropharyngeal seal pressure of I-gel® was higher than that of Ambu laryngeal mask (p = 0.001). Conclusion: The severity and frequency of postoperative sore throat in children is not statistically significant in the I-gel Group compared to Ambu Group.


Resumo Justificativa e objetivo: Dor de garganta é uma queixa bem conhecida após anestesia geral. O presente estudo comparou a gravidade e a frequência da queixa de dor de garganta pós-operatória associada ao uso de máscara laríngea Ambu ou máscara laríngea I-gel® durante cirurgia eletiva, em crianças capazes de autoreferir a queixa no pós-operatória. Método: Setenta crianças, de 6 a 16 anos submetidas à cirurgia eletiva foram alocadas aleatoriamente para o emprego da máscara laríngea Ambu (Grupo Ambu) ou para o emprego da máscara laríngea I-gel® (Grupo I-gel). Após o procedimento, os pacientes foram entrevistados imediatamente após admissão na sala de recuperação pós-anestésica-SRPA, uma hora, 6 e 24 horas após a cirurgia por um observador independente e cego ao dispositivo de vias aéreas utilizado no intraoperatório. Resultados: Na admissão à SRPA, 17,1% das crianças no Grupo Ambu (n = 6) se queixaram de dor de garganta pós-operatória, contra 5,7% no Grupo I-gel (n = 2). Após uma hora, os resultados foram similares. Após 6 horas, houve dor de garganta pós-operatória em 8,6% (n = 3) das crianças no Grupo Ambu vs. 2,9% (n = 1) no Grupo I-gel. Após 24 horas, 2,9% (n = 1) das crianças no Grupo Ambu versus nenhuma criança no Grupo I-gel. Não houve diferença significante na incidência de dor de garganta pós-operatória nos dois dispositivos na admissão na SRPA (p = 0,28); após 1 hora (p = 0,28); após 6 horas (p = 0,30); e após 24 horas (p = 0,31). A duração da inserção foi menor no grupo da máscara laríngea Ambu, e a I-gel® foi mais fácil de inserir (p = 0,029). A pressão de selagem orofaríngea do I-gel® foi maior do que a da máscara laríngea Ambu (p = 0,001). Conclusão: A gravidade e a frequência da dor de garganta pós-operatória em crianças não foram estatisticamente significantes no grupo com máscara laríngea I-gel® em comparação ao grupo com máscara laríngea Ambu.


Subject(s)
Humans , Female , Child , Adolescent , Postoperative Complications/etiology , Pharyngitis/etiology , Laryngeal Masks/adverse effects , Postoperative Complications/epidemiology , Severity of Illness Index , Pharyngitis/epidemiology , Single-Blind Method , Incidence , Prospective Studies
5.
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
6.
Braz. j. med. biol. res ; 53(1): e8645, Jan. 2020. tab, graf
Article in English | LILACS | ID: biblio-1055484

ABSTRACT

Data about the feasibility and safety of thoracoscopic surgery under non-intubated anesthesia and regional block are limited. In this prospective study, 57 consecutive patients scheduled for thoracoscopic surgery were enrolled. Patients were sedated with dexmedetomidine and anesthetized with propofol and remifentanil. Ropivacaine was used for intercostal nerve and paravertebral block. Lidocaine was used for vagal block. The primary outcomes were mean arterial pressure (MAP), heart rate (HR), oxygen saturation, and end-tidal carbon dioxide partial pressure (ETCO2) at T0 (pre-anesthesia), T1 (immediately after laryngeal mask/nasopharyngeal airway placement), T2 (immediately after skin incision), T3 (10 min after opening the chest), T4 (end of surgery), and T5 (immediately after laryngeal mask/nasopharyngeal airway removal). One patient required conversion to intubation, 15 developed intraoperative hypotension, and two had hypoxemia. MAP at T0 and T5 was higher than at T1-T4; MAP at T3 was lower (P<0.05 vs other time points). HR at T0 and T5 was higher (P<0.05 vs other time points). ETCO2 at T2 and T3 was higher (P<0.05 vs other time points). Arterial pH, PCO2, and lactic acid at T1 differed from values at T0 and T2 (P<0.05). The Quality of Recovery-15 (QoR-15) score at 24 h was lower (P<0.05). One patient experienced dysphoria during recovery. Thoracoscopic surgery with regional block under direct thoracoscopic vision is a feasible and safe alternative to conventional surgery under general anesthesia, intubation, and one-lung ventilation.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Young Adult , Thoracoscopy/methods , Laryngeal Masks , Anesthesia, General/methods , Nerve Block/methods , Blood Pressure/drug effects , Blood Pressure/physiology , Propofol/administration & dosage , Feasibility Studies , Prospective Studies , Dexmedetomidine/administration & dosage , Remifentanil/administration & dosage , Heart Rate/drug effects , Heart Rate/physiology
7.
Bull. méd. Owendo (En ligne) ; 18(48): 38-41, 2020. tab
Article in French | AIM, AIM | ID: biblio-1260159

ABSTRACT

Introduction: L'optimisation du réveil anesthésique repose en grande partie sur la gestion des voies aériennes. Notre travail avait pour objectif d'évaluer l'impact du masque laryngé lors d'une mission ponctuelle de chirurgie pédiatrique.Patients et méthodes : Il s'agit d'une étude prospective, descriptive, observationnelle et comparative portant sur les patients de 0-16 ans ayant bénéficié d'une chirurgie sous anesthésie générale. Deux groupes ont été constitués, un groupe masque laryngé (ML) et un groupe intubation trachéale (IT). Les paramètres étudiés étaient : âge, risque anesthésique (ASA), type de chirurgie, protocole anesthésique, temps opératoire et délai de réveil anesthésique.Résultats: Trente-cinq patients ont été inclus, 12 ML et 23 IT. Les enfants de 1 à 8 ans étaient majoritaires dans les deux groupes. La classe ASA 1 constituait 83% de ML et 95,7% d'IT. Les chirurgies viscérales, urologiques et orthopédiques étaient les plus réalisées. Le recours à la curarisation a été noté uniquement chez 56,5% d'IT. La majorité des patients des deux groupes a présenté un temps opératoire de 1 et 2 heures, soit 83,3% (ML) et 60,9% (IT).Presque la moitié des patients ML (41,7%) a eu un réveil rapide en moins de 10 minutes après la fin de la chirurgie, aucun dans le groupe IT mais par contre 26,1% de patients avec un réveil plus retardé. Conclusion : Notre étude montre que le masque laryngé a contribué à atteindre l'objectif de cette mission de chirurgie pédiatrique dans laréalisation d'un grand nombre d'actes dans les temps requis


Subject(s)
Anesthesia Recovery Period , Gabon , Laryngeal Masks , Laryngismus , Patients , Pediatrics
8.
Article in English | WPRIM | ID: wpr-827379

ABSTRACT

Since the outbreak of COVID-19, the prevention and control of nosocomial infections has been highly valued. Airway management, including endotracheal intubation, extubation, and suction, has been considered as the high-risk virus-spreading procedures, which can put the health providers at a high risk of nosocomial infections. As hospitals at all levels will gradually resume their routine medical work, effective managements for the airway of the silent asymptomatic carriers and patients with delayed symptoms, treatment for severe patients, and prevention of cross infection in hospital have become the focus for the current prevention and control of nosocomial infections. Under the guidance of partitioned and graded prevention and differential control strategies at this stage, we comprehensively analyzed four main intubation methods used in the current clinical work including rapid sequence intubation, laryngeal mask insertion, intubation guided by video flexible intubating scope and awake tracheal intubation. Furthermore, we discussed and summarized intubation and protection strategies for 3 categories of patients during the COVID-19 pandemic, providing evidence for protecting medical stuff in operating room and ICU against severe acute respiratory syndrome coronavirus 2 infection.


Subject(s)
Airway Management , Betacoronavirus , Coronavirus Infections , Therapeutics , Cross Infection , Humans , Intubation , Laryngeal Masks , Pandemics , Pneumonia, Viral , Therapeutics
9.
Clin. biomed. res ; 40(1): 33-36, 2020.
Article in English | LILACS | ID: biblio-1116973

ABSTRACT

High flow nasal cannula oxygen therapy (HFNC) has become frequent in the treatment of patients with acute hypoxemic respiratory failure. Methods. Eleven patients with acute exacerbation of fibrotic interstitial lung disease (ILD) were treated with HFNC after failure of conventional therapy (SatO2 < 90% offering 100% FiO2 by non-rebreathing mask or noninvasive ventilation). Ten patients had success with HFNC (not requiring orotracheal intubation) during emergency department admission. HFNC significantly improves clinical variables after 2h: respiratory rate decreased from 33 ± 6 breaths/ min to 23 ± 3 breaths/min; PaO2 increased from 48.7 (38-59) mmHg to 81.1 (76-90) mmHg; PaO2/FiO2 ratio increased from 102.4 ± 32.2 to 136.6 ± 29.4; SatO2 increased from 85 (66-92)% to 96 ± (95-97)%. HFNC could be an effective alternative in the treatment of acute respiratory failure from acute exacerbations of fibrotic ILD.(AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Respiratory Insufficiency , Lung Diseases, Interstitial , Cannula , Laryngeal Masks , Respiratory Rate , Intubation, Intratracheal
10.
Rev. latinoam. enferm. (Online) ; 28: e3347, 2020. tab, graf
Article in English | LILACS, BDENF | ID: biblio-1126960

ABSTRACT

Objective: to compare the mean development time of the techniques of direct laryngoscopy and insertion of supraglottic devices; and to evaluate the success rate in the first attempt of these techniques, considering health professionals wearing specific personal protective equipment (waterproof overalls; gloves; boots; eye protection; mask). Method: meta-analysis with studies from LILACS, MEDLINE, CINAHL, Cochrane, Scopus and Web of Science. The keywords were the following: personal protective equipment; airway management; intubation; laryngeal masks. Results: in the "reduction of the time of the procedures" outcome, the general analysis of the supraglottic devices in comparison with the orotracheal tube initially presented high heterogeneity of the data (I2= 97%). Subgroup analysis had an impact on reducing heterogeneity among the data. The "laryngeal mask as a guide for orotracheal intubation" subgroup showed moderate heterogeneity (I2= 74%). The "2ndgeneration supraglottic devices" subgroup showed homogeneity (I2= 0%). All the meta-analyses favored supraglottic devices. In the "success in the first attempt" outcome, moderate homogeneity was found (I2= 52%), showing a higher proportion of correct answers for supraglottic devices. Conclusion: in the context of chemical, biological or radiological disaster, the insertion of the supraglottic device proved to be faster and more likely to be successful by health professionals. PROSPERO record (CRD42019136139).


Objetivo: comparar o tempo médio do desenvolvimento das técnicas de laringoscopia direta e de inserção de dispositivos supraglóticos e avaliar a taxa de sucesso na primeira tentativa dessas técnicas, considerando a utilização de equipamentos de proteção individual específicos (macacão impermeável; luvas; botas; proteção ocular; máscara) pelos profissionais de saúde. Método: metanálise com estudos das bases LILACS, MEDLINE, CINAHL, Cochrane, Scopus e Web of Science. As palavras-chave foram: personal protective equipment; airway management; intubation; laryngeal masks. Resultados: no desfecho redução "do tempo dos procedimentos" a análise geral dos dispositivos supraglóticos em comparação com o tubo orotraqueal apresentou inicialmente alta heterogeneidade dos dados (I2 = 97%). A análise por subgrupos impactou na redução da heterogeneidade entre os dados. O subgrupo "máscara laríngea como guia para intubação orotraqueal" demonstrou heterogeneidade moderada (I2 = 74%). O subgrupo "dispositivos supraglóticos de 2ª geração" evidenciou homogeneidade (I2 = 0%). Todas as metanálises foram favoráveis aos dispositivos supraglóticos. No desfecho "êxito na primeira tentativa" foi encontrada homogeneidade moderada (I2 = 52%), demonstrando maior proporção de acerto para dispositivos supraglóticos. Conclusão: no contexto do desastre químico, biológico ou radiológico, a inserção do dispositivo supraglótico revelou ser mais rápida e apresentar maior chance de acerto por profissionais de saúde. Registro PROSPERO (CRD42019136139).


Objetivo: comparar el tiempo medio de desarrollo de las técnicas de laringoscopia directa y de inserción de dispositivos supraglóticos y evaluar la tasa de éxito obtenida en el primer intento de dichas técnicas con profesionales sanitarios provistos de equipos de protección individual específicos (mono impermeable, guantes, botas, protección ocular, mascarilla). Método: meta-análisis con estudio de las bases de datos LILACS, MEDLINE, CINAHL, Cochrane, Scopus y Web of Science. Las palabras clave fueron las siguientes: personal protective equipment; airway management; intubation; laryngeal masks. Resultados: en el resultado "reducción del tiempo de los procedimientos", el análisis general de los dispositivos supraglóticos en comparación con el tubo orotraqueal presentó, inicialmente, una alta heterogeneidad de los datos (I2= 97%). El análisis por subgrupos dio como resultado una reducción de la heterogeneidad entre los datos. El subgrupo "mascarilla laríngea como guía para la intubación orotraqueal" mostró una heterogeneidad moderada (I2= 74%). El subgrupo "dispositivos supraglóticos de 2ª generación" mostró homogeneidad (I2= 0%). Todos los meta-análisis fueron favorables a los dispositivos supraglóticos. En el resultado "éxito en el primer intento" se halló una homogeneidad moderada (I2= 52%), obteniendo una mayor proporción de aciertos con el uso de dispositivos supraglóticos. Conclusión: en el contexto de un desastre químico, biológico o radiológico, se ha demostrado que la inserción del dispositivo supraglótico es más rápida y que los profesionales sanitarios obtienen una mayor probabilidad de acierto. Registro PROSPERO (CRD42019136139).


Subject(s)
Protective Devices , Bathroom Equipment , Incidence , Laryngeal Masks , Meta-Analysis , Disasters , Airway Management , Personal Protective Equipment , Equipment and Supplies Utilization , Intubation , Laryngoscopy
11.
Rev. colomb. anestesiol ; 47(4): 245-248, Oct-Dec. 2019. graf
Article in English | LILACS, COLNAL | ID: biblio-1042735

ABSTRACT

Abstract We report an unexpected difficult airway in a patient with unrecognized lingual tonsillar hypertrophy. A 54-year-old hypertensive woman presented for resection of a mediastinal mass under general anesthesia (GA). After induction, mask ventilation was impossible. Laryngeal mask airway (LMA) was used, achieving suboptimal ventilation. Fiberoptic intubation through LMA was attempted but tube advancement was hindered by a protrudingmass. Finally, intubation was achieved using the Frova introducer. After completion of the surgery, the patient was transferred, intubated, to the postanesthesia care unit. Ear, nose, and throat assessment concluded that the mass was a hyper-trophied lingual tonsil. Unexpected lingual tonsillar hypertrophy can complicate GA, making mask ventilation, and even intubation impossible. It is considered a frequent cause of unexpected difficult airway. Diagnosis cannot be made by standard airway physical examination. Once recognized, fiberoptic intubation is mandatory in subsequent surgeries.


Resumen Presentamos el caso de una vía aérea difícil imprevista debido a hipertrofia de la amígdala lingual no conocida. Mujer de 54 años, hipertensa, que ingresa para resección de masa mediastínica bajo anestesia general. Tras la inducción, la ventilación mediante mascarilla facial resultó imposible. Se coloca mascarilla laríngea (ML) y se consigue ventilación de forma subóptima. Se intenta intubación guiada por fibroscopia a su través, pero se objetiva masa protruyente que impide la progresión del tubo. Finalmente se intuba mediante introductor Frova. Tras finalizar la cirugía, la paciente se traslada intubada a la Unidad de Reanimación Postanestésica (URPA). Se realiza evaluación por otorrinolaringología (ORL), que concluye que la masa corresponde a una amígdala lingual hipertrófica. La hipertrofia de la amígdala lingual puede complicar la anestesia, dificultando la ventilación e intubación. Se considera una causa frecuente de vía aérea difícil imprevista. El diagnóstico no puede realizarse mediante exploración anestésica estándar. Una vez conocida, las intubaciones siguientes deben ser guiadas por fibroscopia.


Subject(s)
Humans , Female , Middle Aged , Pharynx , Amygdalin , Hypertrophy , Otolaryngology , Tongue , Palatine Tonsil , Ventilation , Laryngeal Masks
12.
Rev. medica electron ; 41(6): 1325-1340, oct.-dic. 2019. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1094133

ABSTRACT

RESUMEN Introducción: las máscaras laríngeas son dispositivos supraglóticos utilizadas ampliamente en anestesia para el abordaje y mantenimiento de la vía respiratoria. Una de ellas, la Ambu® Aura 40TM, tiene un diseño que le permite ajustarse al entorno de la hipofaringe con su lumen dirigido a la apertura laríngea. Ha demostrado ser adecuada para procedimientos quirúrgicos donde no es necesaria la intubación endotraqueal. Objetivo: determinar la efectividad dicha máscara laríngea para anestesia general en cirugía ortopédica pediátrica. Materiales y métodos: se realizó un estudio descriptivo, prospectivo, transversal, en 135 pacientes intervenidos quirúrgicamente de forma electiva en el Hospital Pediátrico Eliseo Noel Caamaño, de Matanzas, en el periodo enero de 2015- junio 2017. Se tuvo en cuenta el número de intentos y el tiempo para insertar la máscara laríngea, la necesidad de reemplazarla por un tubo endotraqueal y las complicaciones relacionadas con su uso. Resultados: la ML Ambu® Aura 40TM fue efectiva en la mayoría de los pacientes ya que permitió realizar la cirugía sin necesidad de sustituirla por el tubo endotraqueal y la aparición de complicaciones relacionada con su uso fue baja. Conclusiones: la ML Ambu® Aura 40TM fue efectiva ya que en la mayoría de los pacientes fue insertada correctamente en el primer intento y un tiempo inferior a los 20 segundos. Solo una minoría necesitó que fuera reemplazada por el tubo endotraqueal, y la aparición de complicaciones relacionada con su uso fue baja (AU).


ABSTRACT Introduction: laryngeal mask are supra glottal devices widely used in anesthetics for approaching and maintaining the airway. One of them, the Ambu® Aura 40TM, has a design allowing to adjust to the surroundings of hypo-pharynx with its lumen directed to the pharyngeal opening. It has demonstrated to be adequate for surgical procedures when there is no need of endotracheal intubation. Objective: to determine the effectiveness of that laryngeal mask for general anesthetic in pediatric orthopedic surgery. Materials and methods: a cross-sectional, prospective, descriptive study was carried out in 135 patients who underwent elective surgical intervention in the Pediatric Hospital ?Eliseo Noel Caamaño?, of Matanzas, in the period January 2015- June 2017. The number of attempts and the time needed to insert laryngeal mask, the necessity of changing it for an endotracheal tube, and complications related to its usage were taking into account. Results: Ambu® Aura 40TM laryngeal mask was effective in most patients, due to it allowed to perform the surgery without need of changing it for an endotracheal tube, and the low appearance of complications related to its use. Conclusions: Ambu® Aura 40TM laryngeal mask was effective because it was inserted correctly at the first attempt, in a time less than 20 seconds. Only a minority needed to replace it by endotracheal tube, and the appearance of complications related to its use were low (AU).


Subject(s)
Humans , Child, Preschool , Child , Adolescent , Pediatrics , Effectiveness , Laryngeal Masks/statistics & numerical data , Orthopedic Procedures , Anesthesia, General/instrumentation , Epidemiology, Descriptive , Cross-Sectional Studies , Prospective Studies , Laryngeal Masks/adverse effects , Hospitals, Pediatric
13.
Rev. Pesqui. Fisioter ; 9(4): 448-454, Nov. 2019. tab
Article in English, Portuguese | LILACS | ID: biblio-1151792

ABSTRACT

INTRODUÇÃO: Em situações emergenciais, se torna crucial o manejo adequado das vias aéreas, pois falhas neste processo contribuem consideravelmente para piores desfechos clínicos. OBJETIVO: comparar a utilização do tubo endotraqueal e da máscara laríngea no atendimento pré- -hospitalar em relação aos desfechos hospitalares tais como tempo de ventilação mecânica, tempo de permanência na UTI e taxa de óbito. MATERIAIS E MÉTODOS: estudo observacional retrospectivo, desenvolvido no Hospital Santa Cruz, Rio Grande do Sul. Foram incluídos pacientes maiores de 18 anos, de ambos os sexos, que foram atendidos pelo SAMU durante o atendimento pré-hospitalar, e após o encaminhados para o Pronto Atendimento ou Ambulatório do Hospital Santa Cruz. As variáveis analisadas foram extraídas dos prontuários médicos dos indivíduos selecionados. RESULTADOS: foram analisados 27 indivíduos, maioria do sexo masculino, com média de idade de 46,5±22 anos, sendo a causa predominante do atendimento pré-hospitalar o politraumatismo. Ao compararmos os pacientes que utilizaram tubo endotraqueal com os que utilizaram máscara laríngea, não foram observadas diferenças significativas em relação ao tempo de atendimento pré-hospitalar. Na fase intra-hospitalar, observamos diferença significativa em relação ao tempo de ventilação mecânica e tempode internação na UTI, não sendo o mesmo observado em relação a taxa de óbito. CONCLUSÃO: Os pacientes submetidos a utilização da máscara laríngea no atendimento pré-hospitalar apresentaram menor tempo de ventilação mecânica e menor tempo de internação na UTI, em relação aos pacientes intubados com tubo endotraqueal.


INTRODUCTION: In emergency situations, proper management of the airways becomes crucial, because flaws in this process contribute considerably to worse clinical outcomes. OBJECTIVE: To compare the use of the endotracheal tube and laryngeal mask in prehospital care in relation to hospital outcomes such as mechanical ventilation time, length of stay in the ICU and death rate. MATERIALS AND METHODS: a retrospective observational study, developed in a Hospital Santa Cruz, Rio Grande do Sul. Patient records were used from the Emergency Mobile Service (SAMU) of Santa Cruz do Sul, sent to the Emergency Department or Ambulatory of Santa Cruz Hospital. RESULTS: 27 individuals, mostly males, with an average age of 46.5 ± 22 years, were analyzed, being the predominant cause of pre-hospital care the polytrauma. When comparing the patients who used the endotracheal tube with those who used laryngeal mask, no significant differences were observed in relation to the time of prehospital care. In the in-hospital phase, we observed a significant difference in relation to the time of mechanical ventilation and length of stay in the ICU, and the same was not observed in relation to the death rate. CONCLUSION: The patients submitted to the use of the laryngeal mask in the pre-hospital care presented a shorter time of mechanical ventilation and a shorter time of hospitalization in the ICU than the patients intubated with an endotracheal tube.


Subject(s)
Intubation, Intratracheal , Respiration, Artificial , Laryngeal Masks
14.
Rev. bras. anestesiol ; 69(2): 222-226, Mar.-Apr. 2019.
Article in English | LILACS | ID: biblio-1003404

ABSTRACT

Abstract Background and objectives: Negative pressure pulmonary edema occurs by increased intrathoracic negative pressure following inspiration against obstructed upper airway. The pressure generated is transmitted to the pulmonary capillaries and exceeds the pressure of hydrostatic equilibrium, causing fluid extravasation into the pulmonary parenchyma and alveoli. In anesthesiology, common situations such as laryngospasm and upper airway obstruction can trigger this complication, which presents considerable morbidity and requires immediate diagnosis and propaedeutics. Upper airway patency, noninvasive ventilation with positive pressure, supplemental oxygen and, if necessary, reintubation with mechanical ventilation are the basis of therapy. Case report: Case 1: Male, 52 years old, undergoing appendectomy under general anesthesia with orotracheal intubation, non-depolarizing neuromuscular blocker, reversed with anticholinesterase, presented with laryngospasm after extubation, followed by pulmonary edema. Case 2: Female, 23 years old, undergoing breast reduction under general anesthesia with oro-tracheal intubation, non-depolarizing neuromuscular blocker, reversed with anticholinesterase,presented with inspiration against closed glottis after extubation, was treated with non-invasiveventilation with positive pressure; after 1 hour, she had pulmonary edema. Case 3: Male, 44 yearsold, undergoing ureterolithotripsy under general anesthesia, without neuromuscular blocker,presented with laryngospasm after laryngeal mask removal evolving with pulmonary edema. Case 4: Male, 7 years old, undergoing crude fracture reduction under general anesthesia withorotracheal intubation, non-depolarizing neuromuscular blocker, presented with laryngospasmreversed with non-invasive ventilation with positive pressure after extubation, followed bypulmonary edema. Conclusions: The anesthesiologists should prevent the patient from perform a forced inspirationagainst closed glottis, in addition to being able to recognize and treat cases of negative pressurepulmonary edema.


Resumo Justificativa e objetivos: O edema pulmonar por pressão negativa ocorre por aumento da pressão negativa intratorácica após inspiração contra via aérea superior obstruída. A pressão gerada é transmitida aos capilares pulmonares e supera a pressão de equilíbrio hidrostático, o que causa extravasamento de líquido para o parênquima pulmonar e alvéolos. Em anestesiologia, situações comuns como laringoespasmo e obstrução de via aérea superior podem desencadear essa complicação, que apresenta considerável morbidade e exige diagnóstico e propedêutica imediatos. A desobstrução das vias aéreas superiores, ventilação não invasiva com pressão positiva, oxigênio suplementar e, se necessário reintubação com ventilação mecânica são a base da terapia. Relato de caso: Caso 1: Masculino, 52 anos, submetido a apendicectomia sob anestesia geral com intubação orotraqueal, uso de bloqueador neuromuscular adespolarizante, revertido com anticolinesterásico; apresentou laringoespasmo após extubação, seguido de edema pulmonar. Caso 2: Feminino, 23 anos, submetida a mamoplastia redutora sob anestesia geral com intubação orotraqueal, bloqueador neuromuscular adespolarizante revertido com anticolinesterásico, apresentou inspiração contra glote fechada após extubação, tratada com ventilação não invasiva com pressão positiva; após uma hora apresentou edema pulmonar. Caso 3: Masculino, 44 anos, submetido a ureterolitotripsia sob anestesia geral, sem bloqueador neuromuscular, apresentou laringoespasmo após retirada de máscara laríngea e evoluiu com edema pulmonar. Caso 4: Masculino, sete anos, submetido a redução cruenta de fratura sob anestesia geral com intubação orotraqueal, uso de bloqueador neuromuscular adespolarizante; apresentou laringo-espasmo revertido com ventilação não invasiva com pressão positiva após extubação, seguidode edema pulmonar. Conclusões: O anestesiologista deve evitar que o paciente faça inspiração forçada contra glotefechada, além de ser capaz de reconhecer e tratar os casos de edema pulmonar por pressãonegativa.


Subject(s)
Humans , Male , Female , Child , Adult , Pulmonary Edema/etiology , Laryngismus/complications , Airway Obstruction/complications , Laryngeal Masks , Airway Extubation/methods , Noninvasive Ventilation/methods , Intubation, Intratracheal/methods , Anesthesia, General/methods , Middle Aged
15.
Article in English | WPRIM | ID: wpr-759501

ABSTRACT

BACKGROUND: Geriatric patients are susceptible to respiratory and hemodynamic adverse events during endotracheal intubation and extubation due to anatomic and physiological changes with aging. Supraglottic airway devices (SADs) provide reduced airway morbidity and increased hemodynamic stability in adults. However, studies that have compared the clinical performance of SADs in geriatric patients are limited. Therefore, we evaluated the clinical performance of airway management with i-gel® and laryngeal mask airway Supreme (LMA Supreme™) in geriatric patients. METHODS: The subjects were American Society of Anesthesiologists physical status classification I–III geriatric (65–85 years) patients who underwent elective surgery with general anesthesia and were randomly allocated into the i-gel® group and the LMA Supreme™ group. We compared the time for successful insertion on a first attempt as a primary outcome, and the secondary outcomes were success rate, ease of insertion, maneuver for successful ventilation, oropharyngeal leak pressure, gastric insufflation, fiberoptic view grades, ventilator problems, and adverse events. RESULTS: Insertion time was significantly shorter for the i-gel® than the LMA Supreme™ (21.4 ± 6.8 vs. 29.3 ± 9.9 s; P = 0.011). The i-gel® was also easier to insert than the LMA Supreme™ (P = 0.014). Gastric insufflation was less frequent with the i-gel® than the LMA Supreme™ (0% vs. 31.3%; P = 0.013). Other measurements were comparable between groups. CONCLUSIONS: Both devices can be safely applied to geriatric patients with similar success rates and oropharyngeal leak pressures. However, inserting the i-gel® was faster and easier compared to the LMA Supreme™ in geriatric patients.


Subject(s)
Adult , Aging , Airway Management , Anesthesia, General , Classification , Hemodynamics , Humans , Insufflation , Intubation , Intubation, Intratracheal , Laryngeal Masks , Prospective Studies , Ventilation , Ventilators, Mechanical
16.
Article in English | WPRIM | ID: wpr-764383

ABSTRACT

Corticobasal degeneration (CBD) is a rare neurodegenerative disease characterized by dystonia, cognitive deficits, and an asymmetric akinetic-rigid syndrome. Little information is available regarding anesthetic management for CBD patients. Our patient was a 55-year-old man with CBD complicated by central sleep apnea (CSA). Due to the risk of perioperative breathing instability associated with anesthetic use, a laryngeal mask airway was used during anesthesia with propofol. Spontaneous respiration was stable under general anesthesia. However, respiratory depression occurred following surgery, necessitating insertion of a nasopharyngeal airway. Since no respiratory depression had occurred during maintenance of the airway using the laryngeal mask, we suspected an upper airway obstruction caused by displacement of the tongue due to residual propofol. Residual anesthetics may cause postoperative respiratory depression in patients with CBD. Therefore, continuous postoperative monitoring of SpO₂ and preparations to support postoperative ventilation are necessary.


Subject(s)
Airway Obstruction , Anesthesia , Anesthesia, General , Anesthetics , Cognition Disorders , Dystonia , Humans , Laryngeal Masks , Middle Aged , Neurodegenerative Diseases , Propofol , Respiration , Respiratory Insufficiency , Sleep Apnea Syndromes , Sleep Apnea, Central , Tongue , Ventilation
17.
Article in English | WPRIM | ID: wpr-786242

ABSTRACT

BACKGROUND: Air-QⓇ laryngeal mask airway (LMA) is a second-generation supraglottic airway device (SAD) providing adequate airway control despite the unfavorable airway anatomy in children. Several studies have assessed it as a conduit for tracheal intubation and compared its efficacy with that of other SADs, but there are no studies comparing the laryngeal view with midline and rotational insertion techniques of Air-Q. Therefore, this study compared the fiber-optic bronchoscopic (FOB) assessment of the Air-Q position using these two insertion techniques.METHODS: This randomized controlled trial included 80 patients of the American Society of Anesthesiologists physical status I/II of either sex (age group 5–12 years, weight 10–30 kg), who were scheduled for elective surgery in the supine position under general anesthesia. The patients were randomly subjected to rotational and midline technique groups (n = 40, each), and appropriate sized Air-Q, based on the weight of the patient, was inserted using the technique allocated to each patient. Time taken and number of attempts for successful insertion of the devices and any complications after removal of device were studied.RESULTS: FOB grade 1 (ideal position) was seen in 29/40 (72.5%) and 19/40 (47.5%) children subjected to the rotational and classic midline techniques, respectively (P = 0.045). The time taken to successfully insert the Air-Q was significantly lesser in the rotational technique group (7.2 ± 1.5 s) than in the classic midline technique group (10.2 ± 2.1 s) (P < 0.001), whereas complications were similar in both groups.CONCLUSIONS: The rotational technique was associated with better FOB view, and was faster than the classic midline technique of Air-Q insertion in pediatric patients.


Subject(s)
Airway Management , Anesthesia, General , Child , Humans , Intubation , Laryngeal Masks , Prospective Studies , Supine Position
18.
Article in English | WPRIM | ID: wpr-786241

ABSTRACT

BACKGROUND: The supraglottic airway device is an appropriate alternative to tracheal intubation in laparoscopic surgery. We compared the Baska MaskⓇ with i-gelⓇ by measuring the oropharyngeal leak pressure (OLP) and hemodynamic and respiratory parameters during laparoscopic cholecystectomy.METHODS: A total of 97 patients were randomly allocated to either i-gel group (n = 49) or Baska Mask group (n = 48). Insertion time, number of insertion attempts, fiber-optic view of the glottis, and OLP were recorded. Heart rate, mean arterial pressure, peak airway pressure (PAP), lung compliance, and perioperative complications were assessed before, during, and after pneumoperitoneum.RESULTS: There were no significant differences between the two groups regarding demographic data, insertion time, fiber-optic view of the glottis, and the use of airway manipulation. The OLP was higher in the Baska Mask group than in the i-gel group (29.6 ± 6.8 cmH₂O and 26.7 ± 4.5 cmH₂O, respectively; P = 0.014). Heart rate, mean arterial pressure, PAP, and lung compliance were not significantly different between the groups. The incidence of perioperative complications was small and not statistically significant.CONCLUSIONS: Both the i-gel and Baska Mask provided a satisfactory airway during laparoscopic cholecystectomy. Compared with the i-gel, the Baska Mask demonstrated a higher OLP.


Subject(s)
Arterial Pressure , Cholecystectomy , Cholecystectomy, Laparoscopic , Glottis , Heart Rate , Hemodynamics , Humans , Incidence , Intubation , Laparoscopy , Laryngeal Masks , Lung Compliance , Masks , Pneumoperitoneum
19.
Article in English | WPRIM | ID: wpr-786237

ABSTRACT

BACKGROUND: The laryngeal mask airway (LMAⓇ) Protector™ (Teleflex Medical Co., Ireland) is the latest innovation in the second generation of LMA devices. One distinguishing feature of this device is its integrated, color-coded cuff pressure indicator (Cuff ™ technology) which enables continuous cuff pressure monitoring and allows adjustments when necessary; this ensures patient safety due to better monitoring.CASE: We report a case of postoperative unilateral hypoglossal nerve palsy after uncomplicated use of the LMA Protector. To the best of our knowledge, this could be the second reported case.CONCLUSIONS: This case demonstrates that anesthetists need to routinely measure cuff pressure and that the Cuff Pilot™ technology is not a panacea for potential cranial nerve injury after airway manipulation.


Subject(s)
Cranial Nerve Injuries , Hypoglossal Nerve Diseases , Hypoglossal Nerve , Laryngeal Masks , Patient Safety
20.
Rev. medica electron ; 40(6): 2140-2155, nov.-dic. 2018. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-978723

ABSTRACT

RESUMEN El edema pulmonar por presión negativa es una complicación rara y dramática en la anestesia general. Habitualmente ocurre como consecuencia de un laringoespasmo u otra causa de obstrucción de la vía aérea. Se presentó un caso con el objetivo de mostrar los elementos usados para el diagnóstico y tratamiento del edema pulmonar por presión negativa. Paciente de 7 años de edad, femenina, ASA I, operada de metatarso varo funcional con anestesia general balanceada y máscara laríngea clásica # 3. Desarrolló dicho evento adverso durante la recuperación anestésica. El diagnóstico se basó en la disociación toraco abdominal al restablecer la ventilación espontanea, crepitantes en ambos hemitórax, cianosis central, hipoxemia y la presencia de infiltrado difuso bilateral alveolar. Se intubó la tráquea, se controló la ventilación con presión positiva al final de la espiración y se administró furosemida. La paciente fue trasladada a la Unidad de Cuidados Intensivos donde evolucionó satisfactoriamente. Este es un síndrome cuya verdadera incidencia se desconoce debido a la escasa familiarización con el mismo. La evolución de los pacientes es favorable siempre que se establezca el diagnóstico y el tratamiento oportuno (AU).


ABSTRACT Pulmonary edema due to negative pressure is a rare and dramatic complication in general anesthetic. It usually occurs as a consequence of a laryngeal spasm or another cause of respiratory tract obstruction.A case was presented with the aim of showing the elements used for the diagnosis and treatment of the pulmonary edema due to negative pressure. An ASA I, 7-year-old female patient, was operated on a functional metatarsus varus with balanced general anesthetic and classical laryngeal mask number 3. She developed this adverse event during the anesthetic recovery. The diagnosis was based on the thoracoabdominal dissociation when recovering spontaneous ventilation, crepitation in hemithoraxes, central cyanosis, hypoxemia, and alveolar bilateral diffused infiltrate. The trachea was intubated, ventilation was controlled with positive pressure at the end of the expiration and furosemide was administered. The patient was transferred to the Intensive Care Unit where she evolved satisfactorily. This is a syndrome whose true incidence is unknown as a result of the lack of familiarization with it. Patients' evolution is favorable whenever the right diagnosis and treatment are timely established (AU).


Subject(s)
Humans , Female , Child , Pulmonary Edema/diagnosis , Ventilators, Negative-Pressure/adverse effects , Laryngeal Masks/adverse effects , Metatarsus Varus/surgery , Anesthesia, General/adverse effects , Pulmonary Edema/prevention & control , Pulmonary Edema/therapy , Pulmonary Edema/epidemiology , Laryngismus/diagnosis , Risk Factors , Airway Obstruction/surgery , Intensive Care Units
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