Miotomía endoscópica por vía oral (POEM) para el tratamiento de la acalasia: experiencia clínica inicial y resultados a corto plazo / Per-oral endoscopic myotomy (POEM) for the treatment of achalasia: initial clinical experience and short term results

Resumen Introducción: La acalasia es el trastorno motor primario más frecuente del esófago. El estándar de tratamiento actual es la miotomía de Heller laparoscópica. En los últimos años, el desarrollo de técnicas endoscópicas avanzadas ha permitido el posicionamiento de la técnica POEM (del inglés: per-oral endoscopic myotomy) como una nueva alternativa terapéutica con resultados promisorios. Objetivo: Presentar nuestra experiencia clínica, con descripción de la técnica utilizada, resultados perioperatorios y seguimiento a corto plazo en el desarrollo de esta alternativa terapéutica. Materiales y métodos: Se realizó un análisis retrospectivo de datos obtenidos en forma prospectiva de 15 pacientes intervenidos mediante POEM en 3 hospitales docentes asociados. Se recopilaron variables demográficas preoperatorias, detalle del intraoperatorio y registro de morbimortalidad operatoria. Se realizó un seguimiento clínico dirigido registrando el puntaje de Eckardt y la presencia de síntomas de reflujo gastroesofágico. Resultados: Entre agosto de 2015 y noviembre de 2016 se realizaron 15 POEM. Seis de estos pacientes eran mujeres, y la edad promedio fue de 49 años. El tiempo operatorio promedio fue de 110 min; no hubo morbimortalidad operatoria. La estadía hospitalaria promedio fue de 2,8 días. El seguimiento fue de entre 1 y 15 meses. El puntaje de Eckardt promedio en el preoperatorio y en el postoperatorio fue de 10,5 y 0,4 puntos, respectivamente. Tres pacientes presentaban síntomas de reflujo gastroesofágico al momento del seguimiento. Conclusión: Los resultados obtenidos en nuestra serie apoyan la efectividad y seguridad del POEM a corto plazo. Se requiere de un seguimiento mayor para determinar el rol definitivo de esta técnica.

Abstract Introduction: Achalasia is the most common primary motor disorder of the esophagus. The current standard of treatment is laparoscopic Heller's myotomy. Recently the development of advanced endoscopic techniques has allowed the positioning of the POEM (per-oral endoscopic myotomy) technique as a new therapeutic alternative with promising results. Objective: To present our clinical experience in POEM, with description of the technique used, peri-operative results and short-term follow-up in the development of this therapeutic alternative. Materials and methods: We performed a retrospective analysis of data obtained prospectively from 15 patients undergoing POEM in three clinical centers in our country. Preoperative demographic variables, intraoperative detail, and operative morbidity and mortality were collected. Clinical follow-up was performed with controls recording Eckardt score and presence of gastroesophageal reflux symptoms. Results: Between August 2015 and November 2016, 15 POEM were performed, six of these patients were women, average age was 49 years. The average operative time was 110 min, we did not have any perioperative morbimortality. Hospital stay was 2.8 days. Follow-up was between 1 and 15 months, Eckardt's preoperative and postoperative score was on average 10.5 and 0.4 points, respectively. Three patients had gastroesophageal reflux symptoms at the time of follow-up. Conclusion: Our results support the effectiveness and security of POEM in short-term follow up. Further monitoring is required to determine the definitive role of this technique.

Uso seguro y eficaz del IT-Knife-2 en el manejo endoscópico del divertículo de Zenker (DZ) / Efficacy and safety of the endoscopic management of Zenker diverticulum with IT-Knife 2 device

Objetivo: Evaluar la eficacia y seguridad del manejo endoscópico del DZ con IT-knife 2. Materiales y métodos: Estudio prospectivo, multicéntrico (Hospital Nacional Edgardo Rebagliati Martins y la Clínica El Golf). Se incluyeron todos los pacientes con DZ sintomáticos desde setiembre 2013 a agosto 2016, los cuales fueron sometidos a miotomía cricofaringea endoscópica. Técnica: se afrontó el septo del DZ con un cap y luego se seccionó con el IT-Knife 2 (ENDOCUT Q Efecto 3-2-5) hasta su base. Se comparó la escala de disfagia antes y después del procedimiento, al 1er mes y luego de los 3 meses. Resultados: Se incluyeron 20 pacientes (11 varones; edad promedio: 71 años). El tamaño promedio del DZ fue de 40,5 mm. El tiempo promedio de la miotomía cricofaringea fue de 13,75 minutos. El éxito clínico fue del 100%, presentando un descenso estadísticamente significativo (p<0,001) en el score de disfagia de 2+/-0,86 pre-tratamiento a 0,05+/-0,22 al primer mes post- tratamiento. La recurrencia clínica a partir del tercer mes fue de 15%, resolviendo por completo con un segundo tratamiento endoscópico. No se presentó ningún caso de perforación ni sangrado. Dos pacientes cursaron con neumonía. Conclusión: El tratamiento endoscópico del DZ mediante el uso del IT-knife 2 es altamente eficaz y seguro, y de menor complejidad que la experiencia previa

Objective: To evaluate the efficacy and safety of the endoscopic management of Zenker Diverticulum with IT-Knife 2 device. Materials and methods: prospective and multicenter study (Edgardo Rebagliati Martins National Hospital and Golf Clinic). We included all patients with sintomatic Zenker Diverticulum that were treated with endoscopic cricopharyngeal miotomy from september 2013 until august 2016. Technique: the diverticulum septum was faced with a cap, and then it was cut by the IT-Knife 2 (ENDOCUT Q, effect 3-2-5) until its baseline. Disphagia score was compared before and 1 and 3 months after the procedure. Results: 20 patients were included (11 men; average age: 71 years). The median size of Zenker Diverticulum was 40.5 mm. The median duration of the cricopharyngeal miotomy was 13.75 minutes. Clinical success was 100%. There was a significative decrease (p<0.001) in the disphagia score from 2+/-0.86 before the procedure to 0.05+/-0.22 one month after it. Recurrence after 3 months was 15% and it was completely solved after a second endoscopic treatment. Niether perforation nor bleeding was reported. Two patients had pneumonia. Conclusion: the endoscopic management of Zenker Diverticulum with IT-Knife 2 is highly effective, safe and less complex than previous technique experience

Tratamiento paliativo del cáncer esofágico y de la unión gastro-esofágica mediante colocación de prótesis transtumoral por vía endoscópica / Esophageal stents for symptomatic treatment of esophageal cancer: experience in 35 patients

Background: Esophageal cancer is usually diagnosed when it is beyond surgical ablation. Aim: To report the results of palliative treatment of dysphagia secondary to non-resectable esophageal carcinoma using self-expanding stents. Material and Methods: Review of medical records of 35 patients aged 57 to 94 years (21 males) with a non resectable esophageal carcinoma in whom a self-expanding stent was placed. Results: Eighty six percent of patients had severe dysphagia and it improved in all after the procedure. Two patients experienced a displacement of the stent. Three patients required the placement of a second stent. One patient died 30 days after the procedure due to pneumonia. Conclusions: Self expandable stents provide symptomatic relief to patients with non resectable esophageal carcinoma.

Objetivo: Mostrar método de paliación de disfagia por medio de prótesis autoexpandible, en pacientes con cáncer de esófago o unión esófago-gástrica en etapa IV, o considerados inoperables por patologías concomitantes severas. Material y Método: Estudio retrospectivo, 112 pacientes atendidos en nuestro hospital por cáncer de esófago, 43 en etapa IV se consideraron irresecables, de este grupo, en 8 se efectuó dilatación o gastrostomía endoscópica percutánea. Los otros 35 pacientes con disfagia de origen tumoral fueron tratados con prótesis esofágica como método paliativo al no resultar candidatos para tratamiento quirúrgico por estado de avance de enfermedad o sufrir patologías agregadas que la contraindicaban. Resultados: Tipo histológico más frecuente fue carcinoma epidermoide; nivel de disfagia fue grado 3 en mayoría de los pacientes (86,4 por ciento), la que mejoró luego de la instalación de prótesis alcanzando nivel de disfagia grado 1 (81,8 por ciento). Conclusiones: El uso de prótesis autoexpandibles es útil en el tratamiento de disfagia en pacientes con obstrucción de lumen esofágico secundario a crecimiento de tumor maligno.

Manifestações extraesofágicas da DRGE / Extraesophageal manifestations of GERD

A doença do refluxo gastroesofágico é decorrente do fluxo retrógrado de secreção cloridropéptica para o esôfago e órgãos adjacentes, causando um espectro variável de lesões e sintomas. Sua incidência vem aumentando nos últimos anos e sua prevalência estimada na população brasileira é de cerca de 12%. A DRGE tem como manifestações típicas a pirose e a regurgitação, podendo se apresentar com queixas extraesofágicas tais como asma, tosse crônica, dor torácica não cardíaca e sintomas otorrinolaringológicos.

Gastro-oesophageal reflux disease is caused by the retrograde flow of gastric acid-peptic secretion into the esophagus and adjacent organs, causing a variable spectrum of lesions and symptoms. Its incidence has been increasing in recent years and its estimated prevalence in the Brazilian population is about 12%. Typical manifestations of GERD are heartburn and regurgitation, but the disease may present with extraesophageal complaints such as asthma, chronic cough, non-cardiac chest pain and ENT symptoms.

Tratamento endoscópico das varizes esofágicas utilizando alças pré-atadas confeccionadas com fio de poliamida / Endoscopic treatment of esophageal varices, using pretied loop made with polyamide thread

BACKGROUD: The elastic band ligation is the method of choice for treatment of esophageal varices. The action mechanism is a mechanical varices compression with thromboses. Based on this concept we developed a ligature method using pretied loop made with polyamide thread for the treatment of esophageal varices. OBJECTIVE: The present study describes and evaluates the feasibility of the treatment of esophageal varices by the ligature method using pretied loop made with polyamide thread and analyzes the local changes of the ligations and the results, concerning safety, efficiency and complications of this procedure. PATIENTS AND METHODS: Between March, 1998 and May, 2000, 58 patients with esophageal varices were treated with pretied loop, made with polyamide thread (26 patients with schistosomiasis, 11 with alcoholic cirrhosis, 9 with hepatitis C, 5 with hepatitis B, 4 of unknown etiology, 2 with hepatitis B and C, and one with Budd-Chiari syndrome/ 42 men and 16 women/ average age of 47,67 ± 13,12 years, range 16-74). A plastic tube was attached to the endoscope tip featured as an accessory working channel, allowing the pretied loop made with polyamide thread to be conducted to the esophagus facilitated by a flexible metallic tube, to perform the esophageal varices ligature. A total of 506 ligatures were done, distributed in 223 sections (average of 2,26 ± 1,08 ligature, varying from 1 to 6 per section). The sessions were perform with the interval of 15 days, until the complete eradication of the esophageal varices. The ecoendoscopy was used as a complementary method to evaluate the varices eradication RESULTS: The esophageal varices were treated successfully in all patients. The complete eradication of varices was achieved in 47 (81,03%) patients. In 37 (63,79%) patients the ligatures resulted in pseudopolyps. It was not identified systemic complications or obits. The ecoendoscopy showed thrombosis in the pseudopolyps...

RACIONAL: A ligadura com bandas elásticas tem se tornado o tratamento de escolha das varizes esofágicas, devido aos bons resultados e as menores taxas de complicações quando comparada à esclerose. Seu mecanismo de ação baseia-se na compressão mecânica do cordão varicoso com interrupção do fluxo sangüíneo e posterior trombose. Tendo como base este mecanismo de ação, desenvolveu-se um método alternativo no qual o cordão varicoso é ligado com uma alça confeccionada com fio de poliamida OBJETIVO: Avaliar a viabilidade do tratamento das varizes esofágicas por método de ligaduras com alças pré-atadas confeccionadas com fio de poliamida, analisando as alterações locais, a segurança, a eficácia e as complicações deste método de tratamento. CASUíSTICA E MÉTODOS: Entre março de 1998 e maio de 2000, 58 pacientes com varizes de esôfago foram tratados com ligaduras com alças pré-atadas, confeccionadas com fio de poliamida (26 esquistossomóticos, 11 com cirrose alcoólica, 9 com hepatite C, 5 com hepatite B, 4 de causa não esclarecida, 2 com hepatite B e C e 1 com síndrome de Budd-Chiari; 42 pacientes eram do sexo masculino e 16 do sexo feminino, com média de idade de 47,67 ± 13,12 anos). Confeccionou-se artesanalmente um canal acessório que acoplado à extremidade do endoscópio, permitia que alças pré-atadas feitas com fio de poliamida fossem conduzidas ao esôfago com auxílio de tubo metálico flexível para se proceder às ligaduras das varizes esofágicas. No total, 506 ligaduras foram realizadas, distribuídas por 223 sessões (média 2,26 ± 1,08 ligaduras por sessão). As sessões foram realizadas com intervalos de 15 dias até a completa erradicação das varizes esofágicas. A ecoendoscopia foi utilizada como método complementar para avaliar a erradicação das varizes em 10 doentes RESULTADOS: O procedimento foi realizado com sucesso em todos os pacientes. A completa erradicação das varizes foi obtida em 47 (81,03%) doentes. Em 37 (63,79%) as...