Exploring the Differences Between Early and Traditional Diet Advancement in Postoperative Feeding Outcomes in Patients With an Ileostomy or Colostomy.

ABSTRACT

BACKGROUND: We assessed the differences in postoperative feeding outcomes when comparing early and traditional diet advancement in patients who had an ostomy creation. METHODS: At a U.S. tertiary care hospital, data from patients who underwent an ileostomy or colostomy creation from June 1, 2013, to April 30, 2017 were extracted from an institutional database. Patients who received early diet advancement (postoperative days 0 and 1) were compared with traditional diet advancement (postoperative day 2 and later) for demographics, preoperative risk factors, and operative features. The postoperative feeding outcomes included time to first flatus and ostomy output. Mann-Whitney U tests determined bivariate differences in postoperative feeding outcomes between groups. Poisson regression was used to adjust for unequal baseline characteristics. RESULTS: Data from 255 patients were included; 204 (80.0%) received early diet advancement, and 51 (20.0%) had traditional diet advancement. Time to first flatus and time to first ostomy output were significantly shorter in the early compared with traditional diet advancement group (median difference of 1 day for both flatus and ostomy output, P < 0.001). Adjusting for baseline group differences (American Society for Anesthesiology Physical Status Classification System, surgical approach, resection and ostomy type) maintained the significant findings for both time to first flatus (ß = 1.32, P = 0.01) and time to first ostomy output (ß = 1.41, P < 0.001). CONCLUSIONS: Early diet advancement is associated with earlier return of flatus and first ostomy output compared with traditional diet advancement after the creation of an ileostomy or colostomy.