Estenosis traqueal postintubación después de neumonía grave por coronavirus / Postintubation Tracheal Stenosis after Severe Coronavirus Pneumonia

Introducción: La rápida propagación del SARS­CoV­2 ha provocado una pandemia mundial. Si bien puede salvar vidas, la intubación traqueal presenta el riesgo inherente de inducir daño en la mucosa traqueal con estenosis, con una incidencia estimada de 4,9 casos por millón cada año. Objetivo: Caracterizar la presentación de una estenosis traqueal por intubación prolongada en un paciente que sufrió neumonía grave por coronavirus. Presentación del caso: Se asiste a un paciente de 55 años que sufrió neumonía grave por coronavirus y necesitó intubación orotraqueal prolongada. Una vez recuperado comienza con disnea de empeoramiento progresivo. Se diagnostica una estenosis traqueal y se decide tratamiento quirúrgico donde se realiza resección y anastomosis. El paciente no presentó complicaciones y evolucionó satisfactoriamente. Conclusiones: La estenosis traqueal debe reconocerse como una complicación potencial, aun cuando los pacientes se recuperan de una neumonía grave por COVID-19. El diagnóstico definitivo de estenosis traqueal se realiza mediante fibrobroncoscopia. La resección traqueal con anastomosis entre tráquea y tráquea es el procedimiento más comúnmente realizado(AU)

Introduction: The rapid spread of SARS-CoV-2 has resulted in a global pandemic. Although tracheal intubation can save lives, it presents the inherent risk of inducing tracheal mucosal damage with stenosis, with an estimated annual incidence of 4.9 cases per million. Objective: To characterize a case of tracheal stenosis due to prolonged intubation in a patient with severe coronavirus pneumonia. Case presentation: A 55-year-old patient who suffered severe coronavirus pneumonia and required prolonged orotracheal intubation was attended. Once recovered, the patient began with progressively worsening dyspnea. Tracheal stenosis was diagnosed and surgical treatment was decided, in which resection and anastomosis were performed. The patient did not present any complications and evolved satisfactorily. Conclusions: Tracheal stenosis should be recognized as a potential complication, even when patients recover from severe COVID-19 pneumonia. A definitive diagnosis of tracheal stenosis is made by fibrobronchoscopy. Tracheal resection with anastomosis between trachea is the most commonly performed procedure(AU)

Consensus recommendations on the evaluation and treatment of laryngotracheal anomalies in infants and young children / 临床耳鼻咽喉头颈外科杂志

Infants with laryngotracheal anomalies are clinically manifested as stridor or noisy breathing, choking, hoarseness, feeding difficulties, and cyanotic spells, followed by developmental and growth retardation and other health issues; in severe cases, patients may present with severe dyspnea, which is associated with high mortality. A timely diagnosis as well as appropriate strategy for laryngotracheal anomalies is still challenging for pediatric otolaryngologists. This consensus statement, evolved from expert opinion by the members of the Pediatric Otorhinolaryngology Professional Committee of the Pediatrician Branch of the Chinese Medical Doctor Association, provides comprehensive recommendations and standardized guidance for otolaryngologists who manage infants and young children with laryngotracheal anomalies in evaluation and treatment based on symptomatology, physical and laboratory examinations.

Open safety pin in the pediatric airway: Our experiences at a tertiary care teaching hospital

Background: Aspiration of an open safety pin in the airway is an extremely rare and critical condition that needs immediate and safe removal of the foreign body (FB). An open safety pin in the airway of the pediatric patient requires urgent recognition. Imaging will confirm the exact site of the open safety pin in the airway. Rigid bronchoscopy with optical forceps or grasping forceps is an ideal tool for the removal of the open safety pin from the airway. Objective: This study aims to evaluate the clinical details, management, and outcome of pediatric patients with an inhaled open safety pin in the laryngotracheal airway. Materials and Methods: This is a retrospective descriptive study done between November 2016 and December 2021. There were six children with inhaled open safety pins in the laryngotracheal airway. The diagnosis was done through proper history taking, clinical examination, and the X-ray of the neck and chest of the children. All children underwent rigid bronchoscopy with optical forceps to remove the open safety pin. Results: Out of the six children, four were boys and two were girls. Out of the six cases, four were in the proximal part of the airway and two were seen in the distal airway. The most common clinical presentation was coughing. In this study, open safety pins of the pediatric airway were removed successfully under general anesthesia with the help of a rigid bronchoscope. Conclusion: Open safety pin is rarely found in the laryngotracheal airway. Open safety pin may cause a life- threatening complication. During the removal of the open safety pin, the surgeon should maintain maximum care to not injure the surrounding structures by the sharp end of the open safety pin.

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.

Lesiones laringotraqueales por ahorcamiento fallido / Laryngotracheal lesions by near-hanging

Introducción: La lesión por ahorcamiento se inscribe dentro del traumatismo cerrado de la tráquea cervical. Objetivo: Presentar seis enfermos tratados por secuelas de un intento fallido de ahorcamiento y revisión la literatura sobre los métodos diagnósticos y terapéuticos. Métodos: Se realizó un estudio descriptivo de seis pacientes tratados entre 1989 y 2011 en el Hospital "Hermanos Ameijeiras". Todos fueron remitidos de diferentes hospitales, con una traqueostomía para el control de la vía respiratoria. Las variables estudiadas fueron: sexo, edad, diagnóstico definitivo, técnicas quirúrgicas empleadas, evolución posoperatoria, complicaciones y mortalidad. Resultados: Todos los pacientes fueron del sexo masculino, con edad entre 16 y 66 años (mediana 28,5). Cuatro tenían menos de 30 años, uno 38 y el último 66. El diagnóstico se hizo mediante traqueoscopia flexible y tomografía axial computarizada. La lesión se localizó en subglotis (2) y tráquea (4). Dos pacientes fueron operados antes de la remisión: resección traqueal (1) y laringotraqueal (1). El tratamiento definitivo, en nuestro centro, consistió en resección traqueal (4) y subglótica (2). No se presentaron complicaciones ni fallecidos. Durante el seguimiento postoperatorio (7 a 26 meses), cinco lesionados tuvieron resultados excelentes y uno satisfactorio, asociado con voz débil. Conclusiones: El traumatismo traqueal por ahorcamiento fallido es muy raro. El tratamiento oportuno y adecuado puede reducir las complicaciones y la mortalidad. Un equipo quirúrgico con experiencia puede lograr resultados satisfactorios en un grupo importante de lesionados. La traqueostomía, con anestesia local, es el método de elección para controlar la VR en pacientes con traumatismo cervical(AU)

Introduction: The hanging injury is considered a closed trauma of the cervical trachea. Objective: To present the cases of six patients treated for sequelae after failed hanging attempt, and to review the literature about diagnostic and therapeutic methods. Methods: A descriptive study was carried out of six consecutive patients treated between 1989 and 2011 at Hermanos Ameijeiras Hospital. All were referred from different hospitals, with a tracheostomy for controlling the airway. The variables studied were sex, age, definitive diagnosis, surgical techniques used, postoperative evolution, complications and mortality. Results: All patients were male, aged between 16 and 66 years (median: 28.5). Four were less than 30 years old; one, 38; and the last, 66. The diagnosis was made by flexible tracheoscopy and computerized axial tomography. The injury was located in the subglottis (2) and the trachea (4). Two patients were operated on before referral, through tracheal (1) and laryngotracheal (1) resection. Definitive treatment in our center consisted of tracheal (4) and subglottic (2) resection. There were no complications or deaths. During the postoperative follow-up (7-26 months), five injured patients had excellent outcomes and one had satisfactory outcomes, associated with a weak voice. Conclusions: Tracheal trauma after failed hanging is very rare. Timely and appropriate managment can reduce complications and mortality. An experienced surgical team can achieve satisfactory outcomes in a large group of injured people. Tracheostomy, under local anesthesia, is the method of choice for controlling the airways in patients with cervical trauma(AU)

Damage control of laryngotracheal trauma: the golden day / Control de daños del trauma laringotraqueal: todo en 24 horas

Abstract Laryngotracheal trauma is rare but potentially life-threatening as it implies a high risk of compromising airway patency. A consensus on damage control management for laryngotracheal trauma is presented in this article. Tracheal injuries require a primary repair. In the setting of massive destruction, the airway patency must be assured, local hemostasis and control measures should be performed, and definitive management must be deferred. On the other hand, management of laryngeal trauma should be conservative, primary repair should be chosen only if minimal disruption, otherwise, management should be delayed. Definitive management must be carried out, if possible, in the first 24 hours by a multidisciplinary team conformed by trauma and emergency surgery, head and neck surgery, otorhinolaryngology, and chest surgery. Conservative management is proposed as the damage control strategy in laryngotracheal trauma.

Resumen El trauma laringotraqueal es poco frecuente, pero con alto riesgo de comprometer la permeabilidad la vía aérea. El presente artículo presenta el consenso de manejo de control de daños del trauma laringotraqueal. En el manejo de las lesiones de tráquea se debe realizar un reparo primario; y en los casos con una destrucción masiva se debe asegurar la vía aérea, realizar hemostasia local, medidas de control y diferir el manejo definitivo. El manejo del trauma laríngeo debe ser conservador y diferir su manejo, a menos que la lesión sea mínima y se puede optar por un reparo primario. El manejo definitivo se debe realizar durante las primeras 24 hora por un equipo multidisciplinario de los servicios de cirugía de trauma y emergencias, cirugía de cabeza y cuello, otorrinolaringología, y cirugía de tórax. Se propone optar por la estrategia de control de daños en el trauma laringotraqueal.

Pediatric airway reconstruction: results after implementation of an airway team in Brazil / Reconstrução de vias aéreas pediátricas: resultados após a implantação de uma equipe de vias aéreas no Brasil

Abstract Introduction Since development of pediatric intensive care units, children have increasingly and appropriately been treated for complex surgical conditions such as laryngotracheal stenosis. Building coordinated airway teams to achieve acceptable results is still a challenge. Objective To describe patient demographics and surgical outcomes during the first 8 years of a pediatric airway reconstruction team. Methods Retrospective chart review of children submitted to open airway reconstruction in a tertiary university healthcare facility during the first eight years of an airway team formation. Results In the past 8 years 43 children underwent 52 open airway reconstructions. The median age at surgery was 4.1 years of age. Over half of the children (55.8%) had at least one comorbidity and over 80% presented Grade III and Grade IV subglottic stenosis. Other airway anomalies occurred in 34.8% of the cases. Surgeries performed were: partial and extended cricotracheal resections in 50% and laryngotracheoplasty with anterior and/or posterior grafts in 50%. Postoperative dilatation was needed in 34.15% of the patients. Total decannulation rate in this population during the 8-year period was 86% with 72% being decannulated after the first procedure. Average follow-up was 13.6 months. Initial grade of stenosis was predictive of success for the first surgery (p = 0.0085), 7 children were submitted to salvage surgeries. Children with comorbidities had 2.5 greater odds (95% CI 1.2-4.9, p = 0.0067) of unsuccessful surgery. Age at first surgery and presence of other airway anomalies were not significantly associated with success. Conclusions The overall success rate was 86%. Failures were associated with higher grades of stenosis and presence of comorbidities, but not with patient age or concomitant airway anomalies.

Resumo Introdução: Com o desenvolvimento de unidades de terapia intensiva pediátrica, o tratamento de crianças para situações cirúrgicas complexas, como a estenose laringotraqueal, tem sido cada vez mais adequado. Montar equipes coordenadas de via aérea para alcançar resultados aceitáveis ainda é um desafio. Objetivo: Descrever os dados demográficos e os resultados cirúrgicos dos pacientes durante os primeiros oito anos de uma equipe de reconstrução de via aérea pediátrica. Método: Revisão retrospectiva de prontuários de crianças submetidas à reconstrução aberta de via aérea em uma unidade de saúde universitária de nível terciário durante os primeiros oito anos de desenvolvimento de uma equipe de vias aéreas. Resultados: Nos últimos 8 anos, 43 crianças foram submetidas a 52 reconstruções abertas de vias aéreas. A mediana de idade na cirurgia foi de 4,1 anos. Mais da metade das crianças (55,8%) apresentavam pelo menos uma comorbidade e mais de 80% apresentavam estenose subglótica Grau III e Grau IV. Outras anomalias das vias aéreas ocorreram em 34,8% dos casos. As cirurgias feitas foram: ressecções cricotraqueais parciais e estendidas em 50% e laringotraqueoplastia com enxertos anterior e/ou posterior em 50%. A dilatação pós-operatória foi necessária em 34,15% dos pacientes. A taxa de decanulação total nesta população durante o período de 8 anos foi de 86%, com 72% dos pacientes decanulados após o primeiro procedimento. O seguimento médio foi de 13,6 meses. O grau inicial de estenose foi preditivo de sucesso para a primeira cirurgia (p = 0,0085), 7 crianças foram submetidas a cirurgias de resgate. Crianças com comorbidades apresentaram uma probabilidade 2,5 vezes maior (IC95% 1,2-4,9, p = 0,0067) de cirurgias sem sucesso. A idade na primeira cirurgia e a presença de outras anomalias das vias aéreas não foram significantemente associadas ao sucesso. Conclusões: A taxa global de sucesso foi de 86%. As falhas foram associadas a graus maiores de estenose e a presença de comorbidades, mas não com a idade do paciente ou anomalias concomitantes das vias aéreas.

Mitomycin C in the Endoscopic Treatment of Laryngotracheal Stenosis: Systematic Review and Proportional Meta-Analysis

Abstract Introduction Mitomycin C is a natural antibiotic that has been used to inhibit the proliferation of fibroblasts in scar tissue. Objective To evaluate the effectiveness and safety of topical Mitomycin C as an adjuvant in the endoscopic treatment of laryngotracheal stenoses. Data synthesis A systematic review of experimental or observational studies that have evaluated the treatment of laryngotracheal stenoses with the use of topical Mitomycin C was performed. Databases researched: LILACS, PubMed, Embase, Cochrane and Web of Science. Outcomes: resolution (symptom-free time ≥ one year), number of procedures required, and complications resulting from the procedure. A total of 15 studies (involving 387 patients) were selected. Mitomycin C was administered to every patient in 11 studies, and in 4 other studies, the patients were separated into 2 groups, 1 receiving mitomycin C, and the other not. The resolution of the stenosis evaluated in 12 studies in which the patients received mitomycin C was of 69% (95% confidence interval [95%CI]: 61-76%; I2 = 17.3%). A total of 52% of the patients (95%CI: 39-64%, 11 studies; I2 = 64.7%) were submitted to a single endoscopic procedure, and 48% (95%CI: 36-61%, 11 studies; I2 = 64.7%) were submitted to more than 1 procedure. Complications (mediastinal and subcutaneous emphysema, dysphonia, laceration or vocal fold paralysis and acute light obstruction) were reported in 9% of the patients (95%CI: 3-18%, 9 studies; I2 = 79.8%). Conclusions The evidence suggests that mitomycin C is an effective and safe option in the endoscopic treatment of laryngotracheal stenosis.

Autologous tracheal cartilage composite graft for a subglottic defect after laryngotracheal resection for invasive papillary thyroid carcinoma

@#<p style="text-align: justify;"><strong>OBJECTIVE: </strong>To present a function-preserving surgical technique of post-laryngotracheal resection reconstruction of the subglottic airway using autologous tracheal cartilage composite graft.</p><p style="text-align: justify;"><strong>METHODS:</strong></p><p style="text-align: justify;"><strong>     Design:</strong>            Case Report</p><p style="text-align: justify;"><strong>     Setting:</strong>           Tertiary Government Training Hospital</p><p style="text-align: justify;"><strong>     Participants:</strong>   One</p><p style="text-align: justify;"><strong>RESULT: </strong>A 77-year-old woman diagnosed with papillary thyroid carcinoma with laryngotracheal invasion underwent total thyroidectomy with laryngotracheal resection. The tracheal defect was reconstructed using end-to-end anastomosis of the trachea to the remaining cricoid. The cricoid (subglottic) defect was repaired using the harvested tracheal cartilage with mucosa. Post-operatively, the patient was maintained on nasogastric tube feeding and tracheostomy tube for 2 weeks. Subsequently, the nasogastric tube and tracheostomy tube were removed and the patient tolerated oral feeding without any airway problem. The last follow-up of the patient was 6 months post-operatively without complications.</p><p style="text-align: justify;"><strong>CONCLUSION: </strong>Autologous tracheal cartilage may be a potentially promising composite graft for reconstruction of the cricoid (subglottic) defect in a patient following laryngotracheal resection for invasive papillary thyroid carcinoma of the larynx and trachea.</p><p style="text-align: justify;"> </p>

Advanced laryngotracheal stenosis patients in a tertiary provincial government hospital: A prospective case series

@#<p style="text-align: justify;"><strong>OBJECTIVE:</strong> To describe the clinical profiles, interventions, and surgical outcomes of patients with advanced (grade III and IV) laryngotracheal stenosis prospectively seen over a 2-year period.  </p><p style="text-align: justify;"><strong>METHODS:</strong></p><p style="text-align: justify;">           <strong>Design:</strong>           Prospective Case Series</p><p style="text-align: justify;">          <strong>Setting:</strong>           Tertiary Provincial Government Hospital</p><p style="text-align: justify;"><strong>          Participants:</strong>  Five (5) patients with advanced laryngotracheal stenosis confirmed by laryngoscopy and/or tracheoscopy.</p><p style="text-align: justify;"><strong>RESULTS:</strong> Five (5) patients (4 males, 1 female), aged 23 to 31years (mean 27-years-old) diagnosed with advanced laryngotracheal stenosis between June 2016 to June 2018 were included in this series. Four resulted from prolonged intubation (14 - 60 days) while one had a prolonged tracheotomy (13 years). Presentations of stenosis included dyspnea on extubation attempt (n=3), failure to extubate (n=1) and failure to decannulate tracheotomy (n=1). Stenosis length was 3 cm in two, and 1.5 cm in three. Of the five (5) patients, three had grade IV stenosis while two had grade III stenosis based on the Cotton-Myer Classification System. Two of those with grade IV stenosis and both patients with grade III stenosis had undergone prolonged intubation. The stenosis involved the subglottis in three, and combined subglottic and tracheal stenosis in two. Prolonged intubation was present in all three with subglottic stenosis, and in one of the two with combined subglottic and tracheal stenosis. Two patients underwent open surgical approaches while three underwent endoscopic dilatation procedures. Four patients were successfully decannulated while one is still on tracheostomy. None of them had post-operative complications.</p><p style="text-align: justify;"><strong>CONCLUSION:</strong>  Advanced laryngotracheal stenosis is a challenging entity that results from heterogenous causes. Categorizing stenosis and measuring stenosis length may help in treatment planning and predicting surgical outcome.</p><p style="text-align: justify;"> </p>

The application of thyroid alar cartilage in the reconstruction of subglottic stenosis for children / 中华耳鼻咽喉头颈外科杂志

Objective@#To explore the application value of thyroid alar cartilage(TAC) in the laryngotracheal reconstruction of subglotticstenosis in the paediatric population.@*Methods@#Twelve patients(7 males,5 females; range from 2.3 to 12.0 years) with subglotticstenosis who had undergone laryngotracheal reconstruction procedures at our hospital fromSeptember 2016 to July 2018 were analyzed retrospectively.The degree of stenosis was classified according to Myer-Cotton classification system:grade Ⅱ(n=4),grade Ⅲ(n=6) and grade Ⅳ(n=2). The stenosis planes were subglotticbut did not exceed the 3rd tracheal cartilage ring.@*Results@#Of all 12 patients, 11 were decannulated and 1 failed. All patients with grade Ⅱ and Ⅲ patients were decannulated at one procedure. There were no severe complications such as tube dislogement,asphyxia and unhealed wound.@*Conclusions@#The TAC for widening laryngotracheal lumen is relatively simple and reliable for laryngotracheal reconstruction in the pediatric population with subglottic stenosis. This would′t cause any structural damage to the laryngeal cavity.

Laryngo Tracheal Stenosis : Management And Its Outcomes

Introduction: Laryngotracheal stenosis (LTS) implies a partial or complete narrowing of the larynx and/or trachea. Surgical management of it is technically challenging due to complex anatomy and delicate nature of airway structures. Ourstudy aims to study clinical profile, management, and surgical outcome of LTS. Materials and Methods: All patients with LTS treated between 2015 and 2018 were included in in our study.They underwent endoscopic assessment followed by definitive management which included endoscopic and external surgical techniques. The success of treatment was defined by decannulation Subjective assessment of voice quality.Results: A total of 30 patients with benign LTS were treated. Prolonged intubation was the single largest cause (56%). subglottic stenosis formed the largest group (74%) followed by Tracheal stenosis (14%).patiens were devided in four group depending upon surgical procedure they underwent:GROUP–I,endoscopic laser excision and dilatation(12cases),GROUP–II laryngo tracheoplasty and t–tube insertion(10 cases),GRUP–III tracheal stent insertion(3 cases),GROUPIV–Rection and anstomosis.Rate of decannalation following this surgical procedure in GROUP–I,GROUP–II,GROUP–III and GROUP–IV were 58%,60%,33% and80%.A total of 19 patients (63%) have been successfully decannulated. Conclusions: The use of appropriate size, low pressure cuffed tubes, and early tracheostomy will help in preventing LTS. The precise assessment of laryngotracheal complex is most useful in planning of management. Choice of treatment depends on location, severity, and length of stenosis, as well as on patient comorbidities an dhistory of previous interventions. Goal of our treatment modality is to achieve a patent airway and acceptable voice quality.

Prevention and treatment of laryngotracheal stenosis after tracheal intubation or tracheotomy in children / 国际儿科学杂志

In pediatric emergency,we often encounter laryngotracheal stenosis after tracheal intubation and tracheotomy. For acute cannulation injury,mitomycin C and other drugs can be tried. And for laryngotracheal stenosis with mature scar,surgery is the main treatment. Children with mild illness can be treated by endoscopic balloon dilatation and laser surgery,with less injury and faster recovery,but with a certain recurrence rate. Most of the children with severe stenosis need to be treated with open surgery such as laryngotracheal reconstruction, slideplasty,partial cricotracheal resection and so on. To prevent complications caused by tracheal intubation and tracheotomy,the appropriate size of tube should be selected,and intermittent discharging is required during intu-bation. If the tracheal intubation is needed for longer than 7 days,tracheotomy should be performed as soon as possible.

Airway reconstruction: review of an approach to the advanced-stage laryngotracheal stenosis / Reconstrução de via aérea: revisão de uma abordagem à estenose laringotraqueal em estágio avançado

Abstract Introduction: The management of laryngotracheal stenosis is complex and is influenced by multiple factors that can affect the ultimate outcome. Advanced lesions represent a special challenge to the treating surgeon to find the best remedying technique. Objective: To review the efficacy of our surgical reconstructive approach in managing advanced-stage laryngotracheal stenosis treated at a tertiary medical center. Methods: A retrospective review of all patients that underwent open laryngotracheal repair/reconstruction by the senior author between 2002 and 2014. Patients with mild/moderate stenosis (e.g. stage 1 or 2), or those who had an open reconstructive procedure prior to referral, were excluded. Patients who had only endoscopic treatment (e.g. laser, balloon dilatation) and were not subjected to an open reconstructive procedure at our institution, were not included in this study. Variables studied included patient demographics, clinical presentation, etiology of the laryngotracheal pathology, the location of stenosis, the stage of stenosis, the type of corrective or reconstructive procedure performed with the type of graft used (where applicable), the type and duration of stent used, the post-reconstruction complications, and the duration of follow-up. Outcome measures included decannulation rate, total number of reconstructive surgeries needed to achieve decannulation, and the number of post-operative endoscopies needed to reach a safe patent airway. Results: Twenty five patients were included, aged 0.5 months to 45 years (mean 13.5 years, median 15 years) with 16 males and 9 females. Seventeen patients (68%) were younger than 18 years. Most patients presented with stridor, failure of decannulation, or respiratory distress. Majority had acquired etiology for their stenosis with only 24% having a congenital pathology. Thirty-two reconstructive procedures were performed resulting in decannulating 24 patients (96%), with 15/17 (88%) pediatric patients and 5/8 (62.5%) adult patients requiring only a single reconstructive procedure. Cartilage grafts were mostly used in children (84% vs. 38%) and stents were mostly silicone made, followed by endotracheal tubes. The number of endoscopies required ranged from 1 to 7 (mean 3). More co-morbidities existed in young children, resulting in failure to decannulate one patient. Adult patients had more complex pathologies requiring multiple procedures to achieve decannulation, with grafting less efficacious than in younger patients. The pediatric patients had double the incidence of granulation tissue compared to adults. The decannulated patients remained asymptomatic at a mean follow-up of 50.5 months. Conclusion: The review of our approach to open airway repair/reconstruction showed its efficacy in advanced-stage laryngotracheal stenosis. Good knowledge of a variety of reconstructive techniques is important to achieve good results in a variety of age groups.

Resumo Introdução: A conduta da estenose laringotraqueal é complexa e é influenciada por vários fatores que podem afetar o resultado final. Lesões em estágio avançado representam um desafio especial para o cirurgião encontrar a melhor técnica de tratamento. Objetivo: Avaliar a eficácia de nossa abordagem de reconstrução cirúrgica no tratamento de estenose laringotraqueal em estágio avançado em um centro médico terciário. Método: Revisão retrospectiva de todos os pacientes submetidos a tratamento cirúrgico/reconstrução laringotraqueal aberta pelo autor principal, entre 2002 e 2014. Os pacientes com estenose leve (por exemplo, estágio 1 ou 2) ou aqueles submetidos a procedimento de reconstrução aberta antes da indicação foram excluídos. Pacientes que tinham sido submetidos somente a tratamento endoscópico (por exemplo, laser, dilatação por balão) e não haviam sido submetidos a procedimento de reconstrução aberta em nossa instituição não foram incluídos. As variáveis estudadas incluíram dados demográficos dos pacientes, apresentação clínica, etiologia da doença laringotraqueal, local da estenose, estágio da estenose, o tipo de procedimento corretivo ou reconstrutor feito com o tipo de enxerto usado (onde aplicável), tipo e duração do stent usado, complicações pós-reconstrução e duração do seguimento. Os resultados incluíram taxas de decanulação, número total de cirurgias reconstrutoras necessárias para possibilitar a decanulação e o número de endoscopias pós-operatórias necessárias para obter uma via aérea patente e segura. Resultados: Vinte e cinco pacientes foram incluídos, com 0,5 meses a 45 anos (média de 13,5, mediana de 15) com 16 homens e nove mulheres. Dezessete pacientes (68%) eram menores de 18 anos. A maioria dos pacientes apresentava estridor, falha de decanulação ou desconforto respiratório. A maioria das estenoses era adquirida, enquanto apenas 24% apresentavam causa congênita. Trinta e dois procedimentos reconstrutores foram feitos, resultaram em decanulação de 24 pacientes (96%), com 15/17 (88%) pacientes pediátricos e 5/8 pacientes (62,5%) adultos que necessitaram de apenas um único procedimento reconstrutor. Enxertos de cartilagem foram usados principalmente em crianças (84% vs. 38%) e a maioria dos stents era feita principalmente de silicone, seguido por tubo endotraqueal. O número de endoscopias necessárias variou de um a sete (média de três). Mais comorbidades foram observadas em crianças pequenas, o que resultou em falha de decanulação em um paciente. Pacientes adultos apresentavam doenças mais complexas que requereram vários procedimentos para decanulação, com enxertos menos eficazes do que em pacientes mais jovens. Os pacientes pediátricos apresentaram o dobro da incidência de tecido de granulação em comparação com os adultos. Os pacientes decanulados permaneceram assintomáticos em um seguimento médio de 50,5 meses. Conclusão: A revisão da nossa abordagem para tratamento cirúrgico/reconstrução aberta das vias aéreas demonstrou eficácia na estenose laringotraqueal em estágio avançado. O conhecimento de uma variedade de técnicas de reconstrução é importante para conseguir bons resultados em vários grupos etários.

Edema laringotraqueal a causa de una lesión térmica: Complicación tras una tiroidectomía en niños / Laryngotracheal edema due to thermal injury: A complication after thyroidectomy in children

La insuficiencia respiratoria posoperatoria es una complicación grave de la tiroidectomia, y su origen puede ser multifactorial, especialmente en los niños. Presentamos el caso de dos hermanos sometidos a una tiroidectomia que luego tuvieron dificultad respiratoria. Para la disección de la tiroides se emplearon un bisturí armónico y el sistema de sellado vascular bipolar electrotérmico. Ambos pacientes presentaron problemas para respirar tempranamente en el posoperatorio. El hermano mayor tuvo dificultad respiratoria leve durante 24 horas, que se resolvió espontáneamente. Se extubó a la hermana menor, pero tuvo estridor grave acompañado de tiraje intercostal y retracción abdominal. Se la volvió a intubar y se la trasladó a la UCI, donde se la conectó a un respirador. Permaneció en la UCI durante 14 días debido a múltiples intentos fallidos de extubación. Es probable que los síntomas fueran más graves en la niña pequeña debido a que la pared de la tráquea era más blanda y los cartílagos, más débiles. Es necesario considerar las posibles complicaciones respiratorias posoperatorias a causa de una lesión térmica o una técnica quirúrgica inadecuada tras una tiroidectomía.

Postoperative respiratory insufficiency is a serious complication of total thyroidectomies which can be multifactorial, especially in children. We report two siblings who had undergone thyroidectomy with subsequent respiratory distress. Electrothermal bipolar and harmonic scalpel were used during thyroid dissections. Both patients had early postoperative respiratory problems. The older one suffered from mild respiratory distress for 24 hours and then he spontaneously recovered. The younger one was extubated but then she had serious stridor accompanied with abdominal and intercostal retractions. She was re-intubated and admitted to ICU for mechanical ventilatory support, where she stayed for 14 days due to multiple failed extubation attempts. The symptoms were more severe in the younger child probably due to softer tracheal wall and weaker tracheal cartilages. We should keep in mind the probable postoperative respiratory complications due to thermal injury or inappropriate surgical technique after thyroid surgeries.

Laryngotracheal stenosis in children / 中华耳鼻咽喉头颈外科杂志

Laryngotracheal stenosis includes congenital laryngotracheal stenosis and secondary laryngotracheal stenosis. Congenital laryngotracheal anomalies are rare, accounting for 0.3%-1.0% of all laryngotracheal stenosis(LTS). Despite the management of pediatric LTS over the past 30 years had been considerable improved, primary surgery still failed in a significant number of complex LTS cases. In some severe LTS cases combined with glottic stenosis, the primary surgery failed around 30%, even with the latest available techniques. Children with LTS usually need multiple operations, and need the tracheostomy tube for months or even years. Therefore, the etiology, clinical features, diagnosis and treatment of laryngotracheal stenosis are summarized in this paper.

Technical Considerations in the Surgical Management of External Laryngotracheal Trauma: Surgical Outcomes

External laryngotracheal (ELT) trauma is rarely encountered in clinical practice. In most circumstances, this injury is overlooked by the primary attending team. Surgical management of ELT trauma is complicated, because there is no established management approach for this potentially life-altering, high morbidity injury. It is important for this injury to be identified early, as any delay in surgical intervention may result in poor airway and phonatory outcomes. The aim of surgical reconstruction is to minimise the above debilitating morbidities by restoring the main laryngeal functions as much as possible. Methods: We reviewed the outcomes of six surgical interventions for ELT trauma at Tengku Ampuan Afzan Hospital from June 2007 to June 2014. Clinical presentations, computed tomography (CT) scans features, intraoperative findings, and postoperative outcomes were evaluated. Results: All patients made a good recovery in terms of phonation except for one patient who had reduced speech function. After one year, one patient was still dependent on a fenestrated tracheostomy. This article describes the surgical reconstruction techniques used to achieve these positive outcomes. Stenting is helpful to aid healing and re-epithelialisation. Conclusion: Prompt recognition and non-traumatised airway control are essential for addressing laryngotracheal trauma. Subcutaneous emphysema is an important hallmark that should alert the attending physician to the possibility of ELT trauma. Immediate surgical intervention using appropriate techniques can produce favorable patient outcomes.

Failed intubation of an unanticipated postintubation tracheal stenosis: a case report / 대한마취과학회지

Encountering a patient with unanticipated laryngotracheal stenosis (LTS) during anesthetic induction is challenging for an anesthesiologist. Because routine history taking and pre-anesthetic evaluation cannot rule out the possibility of LTS, other measures should be taken. Perioperative airway maintenance is considered crucial for avoiding complications such as airway edema, bleeding, obstruction, collapse, and ultimately respiratory failure and arrest. We report an unanticipated tracheal stenosis discovered during anesthetic induction that hindered endotracheal intubation. Because airway maintenance was difficult, we postponed surgery until determining the cause of the difficult entry, considered possible therapeutic approaches (both anesthetic and surgical), and provided successful surgery with a continuous epidural block.

Diagnóstico y tratamiento de las estenosis subglóticas en pediatría: experiencia en un hospital de alta complejidad / Diagnosis and treatment of pediatric subglottic stenosis: experience in a tertiary care center

La estenosis subglótica es una de las causas más frecuentes de obstrucción de la vía aérea en pediatría. El 90% son secundarias a la intubación endotraqueal. El diagnóstico se sustenta en la clínica del paciente, la evaluación radiológica, la laringoscopía flexible y la endoscopía rígida de la vía aérea bajo anestesia general. Debe sospecharse en niños con dificultad respiratoria posextubación. La conducta terapéutica dependerá de la gravedad de la estenosis subglótica y de la sintomatología del paciente. Describimos nuestra experiencia en cuanto a las etiologías de las estenosis subglóticas, el diagnóstico, el tratamiento y la evolución de pacientes con esta patología.

Subglottic stenosis is among the most common causes of airway obstruction in children, 90% of which resulting from endotracheal intubation. The diagnosis is based on the patient's clinical, radiologic evaluation, flexible laryngoscopy and rigid airway endoscopy under general anesthesia. It must be suspected in children with respiratory distress after extubation. The therapeutic approach depends on the severity of the subglottic stenosis and the patient's symptoms. We describe our experience with the subglottic stenosis etiologies, diagnosis, treatment and outcome of patients with this condition.

The clinical analysis and treatment of 38 cases with open laryngotracheal trauma / 中华急诊医学杂志

Objective To discuss the cause and treatment strategy for open laryngotracheal trauma.Methods The clinical data of 38 cases with open laryngotracheal trauma admitted from 1998 to 2012 were collected and analyzed.Of them,one patient died in emergency department despite energetic resuscitation,37 were hospitalized and given advanced treatment after life support measures in emergency department.They were treated with tracheotomy before or during operation.Of them,32 patients were regularly followed up for imaging studies.Result Except 1 patient died of exsanguination from carotid artery rupture,the other 37 survived after successful treatment.Twenty patients were treated with debridement and suture of the wounds and laryngoplasty (20/37,54.1％),8 patients were operated with laryngoplasty plus intraluminal stents implanted (8/37,21.6％) ; the rest 9 patients (9/37,24.3％) were separately given placement of nickel-titanium shape memory alloy stent (n =2),laryngofissure with rubber gloves throat models implanted and laryngoplasty (n =3),linear silicone tube implanted and laryngoplasty with trans-cervical approach (n =1) and tracheoesophageal fistula neoplasty with laryngoplasty and laryngofissure (n =3).The operated patients were followed-up for 0.5 to 3 years after discharge.Of them,35 patients (35/37,94.6％) had successful decannulation,breathing smoothly and swallowing normally,23 patients (23/37,62.2％) had almost normal pronunciation,12 patients (12/37,32.4％) had different degrees in hoarseness of voice,and 2 patients (2/37,5.4％) were referred to other hospital because of failure in extubation with severe stenosis of laryngotrachea.Conclusions When the patients with open laryngotracheal trauma were treated,the essential strategy was to prevent shock,hemorrhage,and asphyxia.In the case of patent respiratory tract and stable vital signs,laryngotracheal reconstruction should be carried out as soon as possible to prevent complications,thereby obtaining good therapeutic effect.