fig1

Figure 1. Preoperative diagnostic algorithm in patients undergoing SG. APM: ambulatory pH monitoring; EE: erosive esophagitis; GERD: gastroesophageal reflux disease; HH: hiatal hernia; HHR: hiatal hernia repair; HRM: high-resolution manometry; LA: Los Angeles classification; SG: sleeve gastrectomy; SG-F: sleeve gastrectomy combined with fundoplication; RYGB: Roux-en-Y gastric bypass; UGI: upper gastrointestinal. ^aUpper gastrointestinal series is optional. ^bEffective esophagogastric junction (EGJ); no Lower esophageal sphincter-crural diaphragm (LES-CD) disruption (type I): according to the Chicago Classification of esophageal motility disorders, v3.0. ^cIneffective EGJ; LES-CD disruption (type II-III): according to the Chicago Classification of esophageal motility disorders, v3.0. *Selected cases only (specific patient’s request, contraindication to RYGB).