Resultados del tratamiento laparoscópico de los quistes hidatídicos hepáticos no complicados / Results of laparoscopic treatment of uncomplicated hepatic hydatid cysts

Introducción: La cirugía es el tratamiento más efectivo para los pacientes portadores de quistes hidatídicos hepáticos (QHH). Actualmente no existe consenso si la cirugía abierta o laparoscópica es la mejor vía de tratamiento. El objetivo del presente estudio es describir la técnica quirúrgica y los resultados de la cirugía radical (periquistectomía) por vía laparoscópica. Materiales y métodos: Estudio de cohorte no concurrente. Se incluyeron a los pacientes portadores de QHH no complicados en los que se realizó periquistectomía radical laparoscópica entre los años 2007 y 2015 en el Hospital Clínico de la Pontificia Universidad Católica de Chile. Se consignaron variables demográficas, clínicas, características del QHH, morbimortalidad y recurrencia en el seguimiento. Resultados: Se operaron 24 pacientes. La mediana de edad fue de 35 años (3-79). La mediana de tamaño del QHH fue de 8 cm (3-15). Las complicaciones postoperatorias se presentaron en 4 casos (16%); un paciente presentó una fístula biliar (4,1%). No hubo mortalidad en este estudio y la estadía hospitalaria fue de 3 días (2-25). La mediana de seguimiento fue de 57,5 meses (9-106); se observó un caso de recurrencia a nivel hepático que requirió otra cirugía. Conclusiones: El tratamiento radical de los QHH no complicados por vía laparoscópica es factible y seguro; al compararlo con la literatura existente no se aprecian diferencias en la morbimortalidad ni recurrencia.

Introduction: Surgery is the most effective treatment for patients with hepatic hydatid cysts (HHC). Currently there is no consensus whether open or laparoscopic surgery is the best treatment. The aim of this study is to describe the surgical technique and the results of laparoscopic radical surgery (pericystectomy). Material and methods: Non-concurrent cohort study. We included patients with uncomplicated HHC in which it was performed a laparoscopic radical pericystectomy between 2007 and 2015 at the Clinical Hospital of the Pontificia Universidad Catolica de Chile. Demographic and clinical variables, HHC characteristics, morbi-mortality and recurrence at follow-up were recorded. Results: Twenty-four patients were operated. The median age was 35 years (3-79). The median HHC size was 8 centimeters (3-15). Postoperative complications occurred in 4 cases (16%); one patient had a biliary fistula (4.1%). There was no mortality in this study and the hospital stay was 3 days (2-25). Median follow-up was 57.5 months (9-106); a case of hepatic recurrence requiring another surgery was observed. Conclusions: The radical treatment of uncomplicated HHC by laparoscopic surgery is feasible and safe; when compared with existing literature there is no differences in morbi-mortality or recurrence.

Disección submucosa endoscópica en cáncer gástrico incipiente: experiencia inicial en el Hospital Clínico de la Pontificia Universidad Católica de Chile / Endoscopic submucosal dissection in early gastric cancer: Experience in 16 patients

Background: Endoscopic submucosal dissection (ESD) is a minimally invasive procedure that allows curative treatment of early gastric cancer (EGC) in selected patients. Aim: To report our initial experience with ESD. Material and Methods: Analysis of prospective data from 16 patients aged 61 to 84 years, who underwent ESD between December 2011 and June 2014. Tumor type, operative time, hospitalization length, oncologic outcomes, complications and short-term follow up were registered. Results: En-block resection was achieved in all cases. The median operative time was 135 min (range: 50-320 min). Specimens' median size was 3.5 cm (range: 3-10). All the resections were R0. In 14 patients ESD was considered curative. In two patients, ESD was considered potentially non-curative due to the presence pathological risk factors for lymph-node metastases in the biopsy specimen. Both patients underwent laparoscopic gastrectomy with lymph-node dissection. There was one case of gastric wall perforation that was repaired by laparoscopic suture. There was no mortality. The median follow-up time was 15 months (range: 2-30 months). Conclusions: ESD is a feasible and safe procedure in our institution with good results in this initial experience.

Síndrome de Bouveret: Resolución endóscopica y quirúrgica de cuatro casos clínicos / Bouveret syndrome: Report of four cases

Bouveret syndrome is a duodenal obstruction caused by a biliary stone. Aim: To report patients with Bouveret syndrome. Material and Methods: Retrospective review of medical records of patients with Bouveret syndrome treated between 1976 and 2006. Results: We report three women and one man with a mean age of 62.5 years. None had a previous diagnosis of cholelithiasis. AH presented with colicky pain in the right upper quadrant and vomiting, suggesting gastric retention. The diagnosis was suspected after a barium meal in two patients and with a CT scan on the other two. The endoscopical extraction or fragmentation of stones was attempted in three patients but was successful only in one. Three patients were operated and a stone impacted in the first portion of the duodenum was identified, along with a cholecystoduodenal fistula. A duodenostomy and stone extraction was performed. One patient was subjected to a cholecystectomy fistula repair and gastrojejunoanastomosis. No patient died and all were discharged within 8 to 12 days after surgery. Conclusions: Bouveret syndrome is an uncommon complication of cholelithiasis. Endoscopy can be diagnostic and therapeutic. Surgery is the other therapeutic option.

Resultados inmediatos y tardíos de la miotomía de Heller laparoscópica en pacientes con acalasia esofágica / Laparoscopic Heller myotomy for esophageal achalasia

Background: Achalasia is characterized by an incomplete relaxation of the lower esophageal sphincter. The best treatment is surgical and the laparoscopic approach may have good results. Aim: To assess the results of laparoscopic Heller myotomy among patients with achalasia. Material and methods: Prospective study of patients subjected to a laparoscopic Heller myotomy between 1995 and 2004. Clinical features, early and late operative results were assessed. Results: Twenty seven patients aged 12 to 74 years (12 females) were operated. All had disphagia lasting for a mean of 32 months. Mean lower esophageal sphincter pressure ranged from 18 to 85 mmHg. Eight patients received other treatments prior to surgery but symptoms persisted or reappeared. The preoperative clinical score was 7. No patient died and no procedure had to be converted to open surgery. In a follow up of 21 to 131 months, all patients are satisfied with the surgical results and the postoperative clinical score is 1. Only one patient with a mega esophagus maintained a clinical score of six. Conclusions: In this series of patients, laparoscopic Heller myotomy was an effective and safe treatment for esophageal achalasia.