Abstract
Childhood obesity is a worsening epidemic. Little is known about the impact of overweight and obesity (OV-OB) on clinical outcomes after reduction for intussusception in children. The aim of this study was to compare clinical outcomes after primarily air enema reduction for intussusception in grouped OV-OB (body mass index-for-age percentile ≥ 85) pediatric patients compared with no OV-OB patients. A retrospective study of 564 children who had undergone intussusception reduction via pneumatic reduction (PR) from April 2018 to January 2020 was conducted with assessments of demographic data, clinical symptoms, pre-reduction examination, and reduction results. One-to-one propensity score matching (PSM) was performed to compare clinical outcomes between patients with and without OV-OB, and the risk factors affecting recurrence and surgical reduction were analyzed in the PSM population. Of the 564 patients, 132 cases (23.4%) were OV-OB (overweight: 95 cases; obesity: 37 cases). In the propensity-matched analysis, the OV-OB group showed a significant increase in surgical reduction (10.2% versus 0.9%, P = 0.005) and recurrence (47.2% versus 10.2%, P < 0.001), excretion time of carbon powder after PR (median: 11.2h versus 8.4h, P < 0.001), higher maximum pressure of PR (median: 10.2kPa versus 7.8kPa, P < 0.001), and number of PR attempts (mean: 2.0 versus 1.4, P < 0.001). There were no significant differences in the reasons for surgery (PR failure or bowel perforation), time to recurrence (early or late), and the times of recurrences ≥ 2. After applying the multivariate logistic regression analysis, we found that OV-OB and white blood cell count ≥ 20×109/L were risk factors for both surgical reduction and the recurrence of intussusception. This study suggested that childhood OV-OB was associated with the failure of PR and recurrence of intussusception after reduction, which should be paid more attention in clinical practice.
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