Publications by authors named "Guilherme Goncalves Pretto"

Background: Cholecystectomy is one of the most performed surgeries. Several techniques were created, generating less pain, better aesthetic results and faster return to activities. Robotic surgery through a single portal combined the advantages of single-incision surgery with the principles of conventional laparoscopy, making it a safe and feasible procedure.

View Article and Find Full Text PDF

Background: According to the precepts of reduced surgical trauma and better cosmesis, an intermediate laparoscopic appendectomy technique between the conventional three-trocar procedure and Laparoendoscopic Single Site Surgery (LESS) was performed, based on literature review and experience of the surgical team.

Patients And Methods: Patients with early stage acute appendicitis and a favourable anatomical presentation were selected. The procedure was performed with two ports: A 10 mm trocar at the umbilicus site for laparoscope and a 5 mm one just above the pubic bone for grasper.

View Article and Find Full Text PDF

Introduction. The objective of this study was to evaluate Ki-67 antigen expression in patients with Barrett's esophagus and esophageal adenocarcinoma and to assess its correlation with the metaplasia-esophageal adenocarcinoma progression. Methods.

View Article and Find Full Text PDF