Preoperative Nutritional Assessment of The Patients Undergoing Major Gastrointestinal Surgery and Their Immediate Postoperative Outcome

Preoperative Nutritional Assessment of The Patients Undergoing Major Gastrointestinal Surgery and Their Immediate Postoperative Outcome

It was a prospective observational study, where preoperative nutritional status and early postoperative complications <30 days (infectious or noninfectious) were studied. The patients admitted between July 2015 to May 2017, who underwent major GI surgeries were included in the study. The study was designed to check if BMI and NRI can predict the postoperative outcomes in these patients.

It was a prospective observational study. This study was done at NAMS, Bir Hospital, Kathmandu, Nepal between July 2015 to May 2017. All the patients who underwent major GI surgery, under general anesthesia, were included in the study. Major was defined as surgery involving >2hrs and excluded were an emergency major operation, gallstone disease operations, patients with cough, fever, and chest infections respectively. The sample size was calculated using the formula z2pq/d2. Twice the number of sample calculated was taken into consideration and the maximum tolerable error was taken as 5%. BMI and NRI were two independent categorical variables. The dependent variables were the postoperative outcome in terms of infectious and noninfectious complications. All the preoperative parameters were of the patients were recorded. The immediate postoperative complications were documented and categorized as infectious and noninfectious complications.

Inclusion Criteria:

• All the patients who underwent major GI surgery, under general anesthesia, were included in the study. Major was defined as surgery involving >2hrs and

Exclusion Criteria:

• Excluded were an emergency major operation, gallstone disease operations, patients with cough, fever, and chest infections respectively