- A large number of patients who undergo laparoscopic sleeve gastrectomy present with surgical complications. Stenosis, in particular, occurs in .7%–4% of cases.
- Sliding hiatus hernia (SHH) is a frequent condition associated with obesity . After Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG), SHH may be asymptomatic, may predispose to gastroesophageal reflux disease (GERD) , and occasionally may trigger painful dysphagia. The pathophysiology of pain is thought to be related to the rubbing of the gastric staple line on the left diaphragmatic pillar, transmitted by the left phrenic nerve .