EFFICACY ANALYSIS OF ENDOSCOPIC SUBMUCOSAL DISSECTION FOR THE EARLY GASTRIC CANCER AND PRECANCEROUS LESIONS.

Background: Endoscopic treatment of precancerous lesions and early gastric cancer has been widely accepted in recent years. Endoscopic submucosal dissection (ESD), following established indication criteria, can lead to cure of the disease in more than 90% of cases.

Objective: This study aimed to analyze the use of ESD in patients with early gastric cancer and precancerous lesions, as well as the results of the procedure, its complications and effectiveness in controlling the disease.

VOLUMETRIC CAPNOGRAPHY FOR RESPIRATORY MONITORING OF PATIENTS DURING ROUTINE COLONOSCOPY WITH ROOM-AIR AND CARBON DIOXIDE INSUFFLATION.

Background: Capnography and carbon dioxide (CO2) insufflation during gastrointestinal endoscopy under sedation are associated with safety and comfort improvements, respectively. Capnography can provide early detection of apnea and hypoxemia, whereas CO2 insufflation causes lower periprocedural discomfort. This is the first study to report the application of volumetric capnography in colonoscopy.

Feasibility of endoscopic submucosal dissection for gastric and colorectal lesions: Initial experience from the Gastrocentro--UNICAMP.

Objective: Endoscopic submucosal dissection is a technique developed in Japan for en bloc resection with a lower rate of recurrence. It is considered technically difficult and performed only in specialized centers. This study sought to report the initial experience from the Gastrocentro--Campinas State University for the treatment of gastric and colorectal lesions by endoscopic submucosal dissection.

Microwave coagulation versus sclerotherapy after band ligation to prevent recurrence of high risk of bleeding esophageal varices in Child-Pugh's A and B patients.

Background: The combination of endoscopic band ligation (EBL) with either endoscopic injection sclerotherapy (EIS) or thermal therapy has been shown to reduce recurrence of esophageal varices compared to EBL alone. The aim of this prospective trial was twofold: 1) to evaluate the safety and efficacy of EBL used in association with microwave coagulation (MC), a thermal endoscopic therapy method, for treating esophageal varices and preventing recurrence; and 2) to compare these results to the joint application of EBL and EIS.

Methods: Seventy cirrhotic patients with bleeding esophageal varices were treated with EBL until only thin vessels remained.

[Esophageal motility studies in cirrhotic patients before and after endoscopic variceal ligation].

Background: To study esophageal motility before and after the endoscopic variceal ligation in cirrhotic patients.

Methods: Twenty-four patients with chronic liver disease assisted at the "Gastrocentro - UNICAMP" in the program of endoscopic variceal ligation were studied (mean age of 49.5 years, 19 males and 5 females).