Purpose: The objective of this study is to report early postoperative complication rate (< 30 days) and assess several pre and perioperative variables which could be associated with a higher risk of major complications after enterocystoplasty plus catheterizable conduit.

Method: We performed a retrospective review of 115 patients who underwent ECP between 2006 and 2020 in a single institution. Were included 51 patients who underwent ECP with a flap catheterizable conduit. All patients were operated by a single reconstructive urologic team and complications were assessed using the Clavien-Dindo classification by a senior urologist at the 30-days visit. To identify which variables were associated with a higher risk of complications, a multinomial logistic regression was performed.

Results: Median age was 22.5 years (IQR: 26.9) and the most common etiology  was myelomeningocele with 56,9% (29/51). The overall early postoperative complication rate was 54.9% (28/51), with minor complications  (Clavien I/II) occurring in 37.2% (19/51) and the major complications rate (Clavien III/IV) was 13.7% (7/51). In a multinomial logistics regression model analysis age, BMI and operative time were statistically significant  associated with an increased risk of early high-grade complications (< 30 days).

Conclusion: Surgical complications can be controlled by reducing surgical time, optimizing obesity control and anticipating surgery to early childhood, especially in exclusively wheelchair-bound children. The surgical technique presented in this study is an option that provides low operative time, good reproducibility and surgical complication rates comparable to the literature, even when performed in a urologic residency program.