Post-operative complications during index hospitalization (% of all operations, n = 257). *Post-operative deaths: 3 deaths within 30 days of operation, 2 additional deaths during index hospitalization >30 days after operation (1.2% 30-day mortality, 1.9% in-hospital mortality). **Other (n = 1 for each complication noted): cerebral vascular accident, deep vein thrombosis, portal vein thrombus, pulmonary embolus, pseudoaneurysm without haemorrhage, biliary obstruction, bowel necrosis, decubitus ulcer, sepsis from indeterminate source and a complication from an unrelated procedure. DGE, delayed gastric emptying; SSI, surgical site infection; MI, myocardial infarction