Our Experts Dr Ewaldo Vitus KombaGastroenterologistVisiting Faculty Surgical Gastroenterology ConditionsAbscesses Adjustable Gastric Banding Anal Fissures or Fistulas Anti-Reflux Surgery (Fundoplication) Appendectomy Bariatric Surgery Biliary Strictures Biliary Surgery Cholecystectomy Cirrhosis Complications Colectomy Colorectal Cancer Diverticulitis Esophageal Surgery Fistulas Gallstones Gastrectomy Gastric Bypass Gastrointestinal Bleeding Gastrointestinal Bleeding Surgery Gastroesophageal Reflux Disease (GERD) Hemorrhoids Hernias Hernia Repair Inguinal Hernia Liver Resection Pancreatic Tumors Pancreatectomy Liver Tumors Liver Transplantation Laparoscopic Procedures Severe Chronic Pancreatitis Sleeve Gastrectomy Small Bowel Surgery Strictures Umbilical Hernia Ventral Hernia