Annie Le-Nguyen1, Franziska Righini-Grunder2, Nelson Piché3, Christophe Faure4, Ann Aspirot5. 1. Division of General Surgery, University of Montreal, Montreal, Canada. 2. Division of Pediatric Gastroenterology, Hepatology and Nutrition, CHU Ste-Justine, Montreal, Canada; Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's hospital, Lucerne, Switzerland. 3. Division of Pediatric Surgery, CHU Ste-Justine, University of Montreal, Montreal, Canada. 4. Division of Pediatric Gastroenterology, Hepatology and Nutrition, CHU Ste-Justine, Montreal, Canada. 5. Division of Pediatric Surgery, CHU Ste-Justine, University of Montreal, Montreal, Canada. Electronic address: ann.aspirot@videotron.ca.
Abstract
PURPOSE: This study aims to characterize risk factors for Hirschsprung-associated enterocolitis (HAEC). We hypothesize that earlier pull-through surgery is associated with lower risks of developing postoperative HAEC. METHODS: A comparative study of 171 Hirschsprung patients treated from 1990 to 2017 was performed. Patients without HAEC were compared to patients with preoperative and/or postoperative HAEC. Results are presented as median [IQR] or frequency (%). Pearson's χ2 test and Wilcoxon rank sum test were performed with a significance level at p < 0.05. Multivariable logistic regression analysis was used to adjust for potential confounders. A subanalysis was done to evaluate laparoscopic, laparotomy, and transanal surgeries. RESULTS: Risk of developing preoperative HAEC was significantly associated with congenital malformations (OR 2.63 [1.11, 6.24]; p = 0.02). Birth weight was lower in patients with preoperative HAEC (OR 0.48 [95% CI 0.25, 0.93]; p = 0.03). On regression analysis, intestinal obstruction after surgery was significantly associated with postoperative HAEC (OR 8.2 [3.18, 21.13]; p < 0.0001). Patients with earlier pull-through surgery did not have a lower risk of developing postoperative HAEC. CONCLUSIONS: Timing of surgery does not seem to be associated with a higher risk of developing pre- and postoperative HAEC. Predisposing factors for preoperative HAEC included associated malformations and lower birth weight, whereas intestinal obstruction was found to be associated with postoperative HAEC. TYPE OF STUDY: Treatment study. LEVEL OF EVIDENCE: Level III.
PURPOSE: This study aims to characterize risk factors for Hirschsprung-associated enterocolitis (HAEC). We hypothesize that earlier pull-through surgery is associated with lower risks of developing postoperative HAEC. METHODS: A comparative study of 171 Hirschsprung patients treated from 1990 to 2017 was performed. Patients without HAEC were compared to patients with preoperative and/or postoperative HAEC. Results are presented as median [IQR] or frequency (%). Pearson's χ2 test and Wilcoxon rank sum test were performed with a significance level at p < 0.05. Multivariable logistic regression analysis was used to adjust for potential confounders. A subanalysis was done to evaluate laparoscopic, laparotomy, and transanal surgeries. RESULTS: Risk of developing preoperative HAEC was significantly associated with congenital malformations (OR 2.63 [1.11, 6.24]; p = 0.02). Birth weight was lower in patients with preoperative HAEC (OR 0.48 [95% CI 0.25, 0.93]; p = 0.03). On regression analysis, intestinal obstruction after surgery was significantly associated with postoperative HAEC (OR 8.2 [3.18, 21.13]; p < 0.0001). Patients with earlier pull-through surgery did not have a lower risk of developing postoperative HAEC. CONCLUSIONS: Timing of surgery does not seem to be associated with a higher risk of developing pre- and postoperative HAEC. Predisposing factors for preoperative HAEC included associated malformations and lower birth weight, whereas intestinal obstruction was found to be associated with postoperative HAEC. TYPE OF STUDY: Treatment study. LEVEL OF EVIDENCE: Level III.