*5.4.1.1 Pre-anesthesia history*

A full preoperative history is a critical step for risk assessment. Predisposing factors as Gastroesophageal reflux disease (GERD), esophageal dysmotility, diabetes, bloating and any condition that delay gastric emptying, history of bariatric surgery or any pathological conditions in upper GI could increase risk of volume regurgitation.
