Study Bariatric surgery Medication Dixon et al., 2008 [13 ] Gastric banding Superficial wound infection (1), gastric pouch enlargement (2), regurgitation (1), febrile episodes (1), hypoglycemic (1), and gastrointestinal intolerance to metformin (1). Gastrointestinal tract adverse effects (2), persistent diarrhea with metformin (1), vasculitic rash (1), multiple hypoglycemic (1), angina and a transient cerebral ischemic (1), and intolerant of very low-calorie meal (2). Schauer et al., 2012 [14 ] Gastric bypass Hospitalization (11), dehydration (4), reoperation (3), transfusion (1), hemoglobin decrease
5 g/dL (1), transient renal insufficiency (1), cholelithiasis (1), ketoacidosis (1), wound infection (1), pneumonia (2), hernia (1), hypoglycemic episodes (35), anemia (6), anastomotic ulcer (4), and hypokalemia (2). Requiring hospitalization (4), arrhythmia or palpitations (2), cellulitis (1), kidney stone (1), hypoglycemic episodes (39), anemia (3), hypokalemia (1), and excessive weight gain (3). Gastrectomy Hospitalization (4), dehydration (2), reoperation (1), transfusion (1), gastrointestinal leak (1), arrhythmia or palpitations (1), pleural effusion (1), hypoglycemic episodes (28), anemia (6), and hypokalemia (2). Mingrone et al., 2012 [15 ] Gastric bypass Intestinal occlusion (1) and iron-deficiency anemia (2). Persistent diarrhea associated with Metformin (2). Biliopancreatic Incisional hernia (1), iron-deficiency anemia (2), hypoalbuminemia (2), osteopenia (1), and osteoporosis (1). Total 128/148 (86.49%) 64/89 (71.91%)
