Our 12 year experience with Montgomery T-tube in the management of acute blunt laryngotracheal trauma patients / Nossa experiência de 12 anos com o tubo T de Montgomery no tratamento de pacientes com trauma laringotraqueal contuso agudo

Abstract Introduction The Montgomery T-tube is a device used as a combined tracheal stent and tracheostomy tube to prevent post-operative tracheal stenosis. Objectives The purpose of this retrospective study is to evaluate the outcome following Montgomery T-tube stenting performed in for neck and airway injury in patients with acute blunt laryngotracheal trauma over a period of 12 years. Methods Between 2005 and 2017, 19 patients with acute blunt laryngotracheal trauma underwent Montgomery T-tube stenting. All 19 laryngotracheal trauma patients had undergone a preoperative tracheostomy in the emergency department by an ENT surgeon. Montgomery T-tube stenting was done later through an external approach. The follow up period ranged from 2 to 10 years. The Montgomery T-tube was removed after a period ranging from 6 months to 1½ year. Results The majority of patients in the study were in the age group of 21-30 years. A preoperative tracheostomy was done in all 19 patients. All patients except 3 underwent successful decannulation, and experienced long-term satisfactory result. Conclusion Management of acute blunt laryngotracheal trauma is a challenging problem that demands a multidisciplinary approach. The ideal treatment option should be individualized according to the patient's condition and characteristics of injury. According to our study we suggest that cases of acute blunt laryngotracheal trauma patients should be managed following the protocol as mentioned in our study, and we strongly emphasize that Montgomery T-tube should be left for at least 1 complete year in the airway as it results in negligible chances of post-traumatic stenosis of airway later.

Resumo Introdução O tubo T de Montgomery é um dispositivo usado como stent traqueal combinado com tubo de traqueostomia para evitar estenose traqueal pós-operatória. Objetivo Avaliar o resultado do procedimento cirúrgico feito para lesões no pescoço e nas vias aéreas em pacientes com trauma laringotraqueal contuso agudo e o resultado da colocação do tubo T de Montgomery nesses pacientes por 12 anos. Método Entre 2005 e 2017, 19 pacientes com trauma laringotraqueal contuso agudo foram submetidos ao implante do tubo T de Montgomery. Todos os 19 pacientes com trauma laringotraqueal foram submetidos a uma traqueostomia pré-operatória no pronto-socorro por um cirurgião otorrinolaringologista. O implante do tubo T de Montgomery foi feito posteriormente através de uma abordagem externa. O período de seguimento variou de dois a 10 anos. O tubo T de Montgomery foi removido após um período que variou de seis meses a um ano e meio. Resultados A maioria dos pacientes do estudo estava na faixa de 21 a 30 anos. A traqueostomia pré-operatória foi feita em todos os 19 pacientes. Todos, exceto três, tiveram decanulação bem-sucedida e resultado satisfatório em longo prazo. Conclusão O tratamento do trauma laringotraqueal contuso agudo é um desafio que exige uma abordagem multidisciplinar. A opção de tratamento ideal deve ser individualizada de acordo com a condição do paciente e as características da lesão. De acordo com nosso estudo, sugerimos que os casos de pacientes com trauma laringotraqueal contuso agudo sejam tratados de acordo com o protocolo mencionado em nosso estudo e enfatizamos fortemente que o implante do tubo T de Montgomery deve ser mantido por pelo menos um ano completo nas vias aéreas, pois resulta em chances insignificantes de posterior estenose pós-traumática das vias aéreas.

Disección arterial cérvico-cefálica post trauma en pediatría / Cervicocephalic arterial dissection post trauma in children

Introducción: la disección arterial cérvico-cefálica (DACC) es una causa importante de accidente cerebrovascular (ACV) en pediatría. Dentro de los factores de riesgo más relevantes están los traumas cervicales y cefálicos, presentes en el 50% de los casos. El pronóstico es variable y depende de la magnitud de oclusión de la arteria afectada. Es importante la detección precoz de esta patología, que muchas veces se presenta con pocos síntomas en pediatría, lo que genera retraso en el diagnóstico y tratamiento. Objetivo:presentar la evidencia disponible sobre DACC incluyendo DACC post trauma para familiarizar a los médicos generales y especialistas sobre la sospecha diagnóstica, diagnóstico enfocado en neuroimágenes y posibles manejos de esta patología. Métodos: se llevó a cabo una revisión bibliográfica de la literatura científica sobre esta condición. Dentro de los criterios de selección de los estudios se consideró la fecha de publicación, el diseño y la relevancia.Conclusiones: la DACC post trauma es una causa frecuente de ACV en pediatría. Se puede presentar con escasa sintomatología, por lo que es importante mantener una alta sospecha en contexto de trauma cervical o cefálico, implementando un diagnóstico y tratamiento precoces para mejorar el pronóstico de los pacientes.

Introduction:Craniocervical arterial dissection (CCAD) is a major cause of arterial ischemic stroke (AIS) in children. The most important risk factors are cervical and cephalic traumas, present in 50% of all cases.The prognosis changes depending on the magnitude of the artery affected. Early detection of this pathology is important. It many times presents itself with few symptoms, which generates a de-lay in its diagnosis and treatment. Objective: To present the evidence available on CCAD, including CCAD post-trauma,to familiarize general physicians and specialists with this diagnosis, neuroimages required, and possible treatments.Methods: Extensive revision of bibliographic scientific literature about this condition. The criteria selection to include studies in this review were the date of publication, the design of the study, and their relevance.Conclusions: the CCAD post-trauma is asignificant cause of AIS in children. It can present itself with mild symptomatology, which is why it is relevant to suspect it in the context of cervical or cephalic trauma, aiming for an early diagnosis and treatment to improve the outcome of patients.

Unión cráneo-cervical - anatomía normal y correlación con imágenes / Cranio Cervical Junction - Anatomy and Imaging Correlation

La solicitud de estudios de imagen en pacientes con trauma cervical es muy frecuente en la práctica diaria. Esa patología es causa relativamente frecuente de discapacidad en pacientes jóvenes junto con el trauma encéfalo craneano. En un porcentaje no despreciable de los casos, las lesiones traumáticas comprometen la unión cráneo- cervical y en esos pacientes, la morbi-mortalidad es más significativa. La transición entre el cráneo y el raquis se basa en un conjunto de estructuras óseas relacionadas por articulaciones muy móviles y estabilizadas por un grupo de ligamentos y músculos que le brindan al mismo tiempo gran solidez. Para una correcta interpretación de los estudios de imagen de uso corriente en la clínica, es fundamental un sólido conocimiento anatómico de la unión cráneo-cervical y sus componentes. Es el objetivo de esta revisión, sistematizar la anatomía de la unión cráneo-cervical con especial énfasis en sus ligamentos, analizar la fisiología de sus movimientos y el concepto de estabilidad para luego realizar una correlación con tomografía computada multi-detector y resonancia magnética.

The request of imaging techniques in patients with cervical spine trauma is very common in clinical practice. Cervical trauma is a relatively common cause of disability in young patients. In a significant percentage of cases traumatic injuries compromise the cranio-cervical junction with more important morbidity and mortality in this group of patients. The transition between the skull and the spine is based on a set of bony structures, high mobility joints, and stabilization mechanism formed by a group of ligaments and muscles. A solid anatomical knowledge of the cranio-cervical junction and its components is essential for a correct interpretation of current high resolution imaging studies. The goal of this review is highlight the anatomy of the cranio-cervical junction with special emphasis on the ligaments, analyze the biomechanics of their movements and the concept of stability. At last but not leastwe will establish a correlation with multidetector computed tomography and high-resolutionmagnetic resonance imaging.

Comparison of effectiveness of intubation by way of "Gum Elastic Bougie" and "Intubating Laryngeal Mask Airway" in endotracheal intubation of patients with simulated cervical trauma / Comparação da eficácia de intubação por meio de guia introdutor Bougie de tubo endotraqueal e máscara laríngea em intubação traqueal de pacientes com trauma cervical simulado

Abstract Purpose: In this study, we evaluated the effectiveness of intubations by way of "Gum Elastic Bougie" and "Intubating Laryngeal Mask Airway" in endotracheal intubation of patients with simulated cervical trauma. Method: 134 patients were included in the study. All patients were placed cervical collar for a simulated cervical trauma. Patients were allocated randomly into three groups: Group NI (n = 45) intubation with Macintosh laryngoscopy, Group GEB (n = 45) intubation with Gum Elastic Bougie, and Group ILMA (n = 44) intubation with Intubating Laryngeal Mask Airway. The number of intubation attempts, success of intubation, duration of complete visualization of the larynx, duration of intubation, user's performance score, hemodynamic changes and the observed complications were recorded. Results: Success of intubation in the first attempt was highest in Group GEB while it was lowest in Group ILMA. Regarding the intubation success, rates of successful intubation were 95.6%, 84.4% and 65.9% in Groups GEB, NI, and ILMA, respectively. Durations of visualization of larynx and intubation were shorter in Groups NI and GEB than in Group ILMA. This difference was statistically significant (p < 0.05) while there was no significant difference between Groups NI and GEB. The number of patients with "good" intubation performance was significantly higher in Group GEB while the number of patients with "poor" intubation performance was significantly higher in Group ILMA (p < 0.05). Conclusions: We conclude that GEB, which is cheap and easily accessible, should be an advantageous choice in cervical trauma patients for both the easeness of intubation and patient morbidity and mortality.

Resumo Objetivo: Neste estudo avaliamos a eficácia de intubações por meio de guia introdutor Bougie e máscara laríngea em intubação endotraqueal de pacientes com trauma cervical simulado. Método: Foram incluídos no estudo 134 pacientes. Colar cervical foi colocado em todos os pacientes para um trauma cervical simulado. Os pacientes foram alocados aleatoriamente em três grupos: Grupo NI (n = 45) foi submetido à intubação com laringoscópio Macintosh; Grupo ITE (n = 45) foi submetido à intubação com guia introdutor de tubo endotraqueal e Grupo ML (n = 44) foi submetido à intubação com máscara laríngea. Número de tentativas de intubação, sucesso de intubação, tempo de visualização completa da laringe, tempo de intubação, escore de desempenho do usuário, alterações hemodinâmicas e complicações observadas foram registrados. Resultados: O sucesso da intubação na primeira tentativa foi maior no Grupo ITE e menor no grupo ML. Ainda em relação ao sucesso da intubação, as taxas de sucesso foram 95,6%, 84,4% e 65,9% nos grupos ITE, NI e ML, respectivamente. Os tempos de visualização da laringe e de intubação foram menores nos grupos NI e ITE do que no Grupo ML. Essa diferença foi estatisticamente significativa (p < 0,05), enquanto não houve diferença significativa entre os Grupos NI e ITE. O número de pacientes com bom desempenho na intubação foi significativamente maior no grupo ITE, enquanto o número de pacientes com mau desempenho na intubação foi significativamente maior no grupo ML (p < 0,05). Conclusões: Concluímos que o ITE, que é barato e facilmente acessível, deve ser uma opção vantajosa em pacientes com trauma cervical, tanto pela facilidade de intubação quanto devido à taxa de morbidade e mortalidade dos pacientes.

Trauma cervical penetrante / Penetrating neck trauma

Aim: The aim of this study is to report the surgical outcomes in a series of patients undergoing to exploratory cervicotomy by penetrating neck trauma (PNT) in emergency department of Barros Luco-Trudeau Hospital (BLTH), between 2003 and 2013, in terms of postoperative morbidity (POM). Matherial and methods: Retrospective case series of patient undergoing exploratory cervicotomy in emergency department of BLTH, between 2003 and 2013. The outcome variable was development of POM. Other variables were age, sex, etiology and kind of injury, hemodynamic status at admission, surgical time, distribution of injuries by anatomic areas, need for re operation and intra and post operative mortality. Descriptive statistics were used. Results: During the study period, 59 exploratory cervicotomies were performed to patients with PNT, with an average age of 32,5 years old. 89,8 percent of patients were male. The POM was 33,4 percent, being the most frequent the neurological ones. The most frequent etiology was the stab with 83 percent. 66 percent of patients were hemodynamically unstable at admission. Mean operative time was 107 minutes. The most injured area was the area II. Conclusion: The PNT is a little prevalent disease. The outcomes of our study are consistent with those reported in the literature.

Objetivo: El objetivo de este estudio es comunicar los resultados quirúrgicos observados en una serie de pacientes sometidos a cervicotomía exploradora por trauma cervical penetrante (TCP) en el Servicio de Urgencias del Hospital Barros Luco-Trudeau (HBLT), entre los años 2003 y 2013, en términos de morbilidad postoperatoria (MPO). Material y método: Serie de casos retrospectiva de pacientes sometidos a cervicotomía exploradora en el servicio de urgencia del HBLT, entre el año 2003 y 2013. La variable resultado fue desarrollo de MPO. Otras variables fueron: edad, sexo, etiología y tipo de lesión, estado hemodinámico al ingreso, tiempo quirúrgico, distribución de la lesión según zona anatómica, necesidad de re operación y mortalidad intra y post operatoria. Se utilizó estadística descriptiva. Resultados: En el período en estudio, se realizaron 59 cervicotomías a pacientes con TCP, con un promedio de edad de 32,5 años, de los cuales el 89,8 por ciento era de sexo masculino. La MPO fue de 33,4 por ciento, siendo las más frecuentes las de tipo neurológico. La etiología más recurrente fue el arma blanca con 83 por ciento. El 66 por ciento de los pacientes se encontraban hemodinámicamente inestables al momento del ingreso. El tiempo quirúrgico promedio fue de 107 min. La zona más lesionada fue la zona II. Conclusión: El TCP es una entidad poco prevalente. Los resultados obtenidos en nuestra serie son coincidentes con lo reportado en la literatura.

¿A qué paciente con un potencial trauma raquimedular cervical se debe estudiar con imagenología?: guía basada en la evidencia / Which patients with a potential trauma of the cervical spine and spinal cord should undergo imaging studies?: evidence-based guideline

En el manejo agudo del paciente con politrauma se afirma que cualquier individuo que haya sufrido un traumatismo por encima del nivel de las clavículas, debe considerarse que potencialmente tiene un trauma de raquis cervical (TRM). Sin embargo, es claro que menos de un 3% de los mismos tienen un riesgo seguro de tener efectivamente un TRM. En agudo, estos pacientes deben manejarse con inmovilización cervical y luego habrá que decidir a que pacientes solicitar estudios de imagen y que estudio solicitar. Dado que mas del 95% de los estudios radiológicos solicitados a pacientes con potencial TRM son normales, es lógico intentar racionalizar el uso de los mismos, pero manteniendo siempre la seguridad para el paciente. Basados en una extensa revisión bibliográfica los autores proponen un algoritmo de manejo clínico y paraclínico para los pacientes que potencialmente han sufrido un TRM...

Clinical complications in patients with severe cervical spinal trauma: a ten-year prospective study / Complicações clínicas em pacientes com trauma raquimedular cervical grave: estudo prospectivo de dez anos

OBJECTIVE: To determine the complications due to severe acrescentar sigla após o nome (CST). METHODS: Between 1997 and 2006, 217 patients (191 men and 26 women) were prospectively evaluated. The mean age was 36.75±1.06 years. RESULTS: Forty-five percent of the patients had medical complications. The most important risk factor was alcoholic beverage use. The most important associated injury was head trauma (HT). Patients with American Spine Injury Association (ASIA) A or B had a 2.3-fold greater relative risk of developing complications. Thirty-three patients (15.2%) died. Patients with neurological deficit had a 16.9-fold higher risk of death. There was no influence of age and time between trauma and surgery on the presence of complications. CONCLUSIONS: Of the patients, 45% had clinical complications and 7.5% had associated injuries; pneumonia was the most important complication; patient age and time between trauma and surgery did not influence the development of medical complications; neurological status was the most important factor in determining morbidity and mortality.

OBJETIVO: Identificar complicações decorrentes do trauma raquimedular cervical grave. MÉTODOS: Avaliação prospectiva de 217 pacientes (191 homens e 26 mulheres) entre 1997 e 2006, com média de idade de 36,75±1,06 anos. RESULTADOS: Houve complicações em 45% dos pacientes. O fator de risco mais importante foi ingestão de bebida alcoólica. Trauma craniano foi a associação mais frequente. Pacientes com classificação A ou B da American Spine Injury Association (ASIA) tiveram 2,3 vezes maior chance de complicações. Faleceram 33 pacientes (15,2%), sendo a chance de óbito 16,9 vezes maior naqueles com déficit neurológico. Não houve influência da idade ou do tempo decorrido entre o trauma e a cirurgia. CONCLUSÕES: Dos pacientes, 45% apresentaram complicações e 7,5% apresentaram traumas associados; pneumonia foi a principal complicação clínica; a idade dos pacientes e o tempo entre o trauma e a cirurgia não influenciaram na frequência de complicações; o status neurológico após o trauma foi o fator de risco mais importante na determinação de morbidade e mortalidade.

Máscara laríngea proseal, una alternativa en el trauma cervical quirúrgico / ProSeal laryngeal mask, an alternative in the surgical cervical trauma

Introducción: la intubación endotraqueal es el método que más se indica para permeabilizar la vía aérea en el paciente con traumatismo raquimedular que requiere ventilación mecánica. Objetivo: comparar los resultados del uso de la máscara laríngea proseal vs. tubo endotraqueal, en pacientes con lesión cervical traumática con cirugía de columna cervical electiva. Métodos: se realizó un estudio analítico de casos y controles, en un período de 5 años. Se obtuvo una muestra de 158 pacientes con lesión cervical que acudieron al centro de trauma con criterios de fijación de columna cervical y corrección quirúrgica electiva. Se crearon 2 grupos mediante un muestreo aleatorio: un grupo estudio (máscara laríngea proseal), y un grupo control (tubo orotraqueal). El procesamiento de los datos incluyó el cálculo de medidas de resumen para variables cualitativas, y para el contraste de hipótesis de homogeneidad entre los grupos de estudio se empleó el chi cuadrado, con un nivel de significación p< 0,05. Resultados: predominaron pacientes entre 20 y 30 años de edad, del sexo masculino. Con el uso de la máscara laríngea se logró permeabilizar la vía aérea en más del 90 por ciento de los casos durante el primer intento; con la colocación del tubo endotraqueal solo se logró en el 70 por ciento de los pacientes. Los tiempos requeridos para establecer una ventilación adecuada fueron menores en los que se utilizó la máscara laríngea, que en los que se utilizó el tubo endotraqueal, con diferencias significativas desde el punto de vista estadístico, y mínimas complicaciones tras el uso de la máscara laríngea proseal. Conclusiones: se demostró que la máscara laríngea proseal resultó más efectiva para el tratamiento de la vía aérea en pacientes con trauma cervica(AU)

Introduction: the endotracheal intubation is the more used method for airways permeability in the patient presenting with rachimedullary requiring mechanical ventilation. Objective: to compare the use of the ProSeal laryngeal mask versus endotracheal tube in patients presenting with traumatic cervical injury with elective cervical spine surgery. Methods: a case/control and analytical study was conducted over 5 years. The sample included 158 patients presenting with cervical injury who came to our trauma center with criteria of cervical spine fixation and elective surgical correction. Two groups were created by randomized sampling: a study group (ProSeal laryngeal mask) and a control group (orotracheal tube). Data processing included the estimation of summary measures for qualitative variables and for the contrast of homogeneity hypothesis among the study groups authors used the Chi² test with a significance level of p< 0,05. Results: there was predominance of patients aged 20 and 30 and of male sex. With the use of laryngeal mask it was achieved the permeation of airway in more than 90 percent of cases during the first attempt; with the placement of endotracheal tube only it was achieved in the 70 percent of patients. Times required to establish appropriate ventilation were less in those where we used laryngeal mask than in those with endotracheal tube with significant differences from the statistical point of view and less complications after the use of the above mentioned mask. Conclusions: it was demonstrated that theis type of mask was more effective for airway treatment in patients presenting with cervical trauma(AU)