Patient selection: age >= 18 years of age
Gastrointestinal complications: ascites, colitis, GI bleeding, ileus, bowel obstruction, pancreatitis, peritonitis
Predictors for gastrointestinal complications from multivariate analysis:
(1) alcohol use (odds ratio 2.0)
(2) cardiac abnormality, non-MI (odds-ratio 2.9)
(3) anemia (odds ratio 3.5)
(4) revision surgery (odds ratio 2.1)
Other factors from univariate analysis:
(1) age >= 40 years
(2) myocardial infarction
(3) hypertension
(4) renal disease
(5) history of bowel obstruction
(6) combined approach
(7) surgical invasiveness (from 0 to 48)
