Early and severe onset of esophageal dysfunction after laparoscopic sleeve gastrectomy: a case report and review of literature.

After bariatric surgery one of the most common complications is dysphagia. The etiology of this disease has not been fully elucidated but it is known that it may be due to structural changes due to surgery. This case describes a 65-year-old female with early and severe onset of dysphagia following laparoscopic sleeve gastrectomy.

Short-term outcomes of endoscopic submucosal dissection for the treatment of superficial gastric neoplasms in non-Asian countries: a systematic review and meta-analysis.

Background: Endoscopic submucosal dissection (ESD) is now considered the standard treatment for early gastric cancer (EGC). However, the widespread adoption of ESD in western countries has been slow. We performed a systematic review to evaluate short-term outcomes of ESD for EGC in non-Asian countries.

Endoscopic submucosal dissection versus surgery for patients with undifferentiated early gastric cancer.

Background And Aims: endoscopic submucosal dissection (ESD) is the standard treatment for differentiated early gastric cancer (EGC). However, its expanded indication for undifferentiated EGC is controversial. In this study, the efficacy and safety of ESD versus surgery in patients with undifferentiated EGC were compared.

Efficacy and Safety of Endoscopic Submucosal Dissection for Superficial Gastric Neoplasms: A Latin American Cohort Study.

Background/aims: Endoscopic submucosal dissection (ESD) is the preferred technique for treating early gastric cancer (EGC). However, very few studies have been conducted in South America. This study aimed to assess the efficacy and safety of ESD for EGC.

Peroral endoscopic myotomy in a pediatric patient with refractory achalasia: a case report and review of the literature.

A 15-year-old male patient presented with dysphagia, regurgitation, weight loss and retrosternal pain. The diagnosis of achalasia was made 4 years before. The esophagogram revealed severe esophagus dilatation and the classic "bird-beak" termination.

Closure of colonic deep mural injury and perforation with endoclips.

Introduction: colorectal perforations are one of the most feared complications after performing an endoscopic resection. The use of endoclips is considered for the management of these complications.

Objectives: to evaluate the efficacy and safety of the use of endoclips in the management of perforations and deep mural injuries that occur after an endoscopic colorectal resection.

[Safety and efficacy of the use of self-expanding metal stents in the management ofunresectable malignant biliary stenosis].

Background: In recent years there has been an increase in the use of self-expanding metallic stents (SEMS) in patients with unresectable malignant stenosis of the bile duct. However, in Peru there are no reports on the safety and efficacy of this procedure.

Objective: To evaluate the safety and efficacy of the use of SEMS in the palliative management of malignant stenosis of the bile duct.

Focal Intramucosal Adenocarcinoma Occurring in Gastric Hyperplastic Polyps Treated with Endoscopic Mucosal Resection.

Hyperplastic polyps are the most frequent benign epithelial gastric polyps. Although they are considered nonneoplastic, some cases have been reported with focal adenocarcinoma. We present the case of a 59-year-old woman with a sessile lesion of 15 mm on the distal gastric body associated with an extensive atrophic gastritis.

[Endoscopic treatment of rectal neuroendocrine tumors: multicentre study in Peru].

Introduction: The incidental detection of rectal neuroendocrine tumors (NET) has increased but there is no proper consensus about treatment.

Objective: Evaluate the efficacy and safety of endoscopic treatment for rectal NET less than 20 mm, with emphasis in "standardized treatment".

Material And Methods: From January 2012 to April 2016, we included patients with rectal NET less than 20 mm resected by conventional EMR, EMR-B and ESD.

[Efficacy and safety of endoscopic resection in patients with large non-pedunculated colorectal polyps].

Introduction: Patients with large non-pedunculated colorectal polyps (L-NPCP) have been traditionally treated with surgery. Advances in therapeutic endoscopy allow endoscopic resection of these lesions and can be considered as an alternative to surgery.

Objective: To evaluate the efficacy and safety of endoscopic resection in patients with L-NPCP.

Endoscopic prediction of tumor invasion depth in early gastric neoplasia: a prospective study in Peru.

Introduction: Endoscopic resection is the first option treatment of early gastric cancer with invasion to mucosa or superficial submucosa, because the risk of nodal metastasis is negligible. Then the prediction of tumor invasion is cardinal.

Objectives: Determine the accuracy of endoscopic prediction for tumor invasion depth in early gastric neoplasia and define endoscopic characteristics associated with massive submucosal invasion.

[Performance of ASGE predictive criteria in diagnosis of choledocholithiasis in the Edgardo Rebagliati Martins Hospital].

Background: In Peru, there are still no local studies designed for evaluating the performance of clinical guidelines designed to stratify patients according to probability of choledocholithiasis.

Objectives: To evaluate the performance of predictive criteria proposed by the American Society for Gastrointestinal Endoscopy (ASGE) in diagnosis of choledocholithiasis.

Materials And Methods: A retrospective cohort study conducted in a hospital in Lima (Rebagliati hospital).

[Large balloon dilation for removal of choledocholithiasis difficult to extract: clinical experience].

Objective: The aim of this study was to report the initial experience of the combined use of biliary sphincterotomy plus balloon dilatation of the papilla for management of large stones.

Materials And Methods: Design: Retrospective, descriptive. This study included 18 patients in whom a hydrostatic dilatation of the papilla with large balloons was performed between June 2012 and April 2014.

[Gastric polyps and histological changes in surrounding mucosa].

Purpose: Gastric polyps are elevated epithelial lesions which pathogenesis and natural history are not well known. The purpose of this study was to determine the association between gastric polyps and histological changes of the surrounding mucosa.

Material And Methods: Prospective, descriptive and transversal study.