Safety and Cost Savings Using Polymeric Clips in Appendectomies in the Pediatric Population: Single-Center Experience.

Introduction: Although laparoscopic appendectomy is standard management for appendicitis, management of the appendiceal stump remains debated. Even though most surgeons can agree on the safety and effectiveness of various closure methods for the appendiceal stump, such as the surgical stapler (SS) or the Endoloop, the cost of these methods should also be considered. A relatively new alternative method, the polymeric clips (PC), has been gaining acceptance in the surgical community as it has repeatedly proven to be as safe as other methods, while being significantly cheaper.

Methods: For the period of January 2019 to December 2021, we performed a retrospective chart review of a single surgeon's laparoscopic appendectomies in children 18 years or younger for acute, non-complicated appendicitis and grouped the cases by appendiceal stump management (SS or PC). Demographics collected included gender, age, BMI percentile, race, and ASA score. Surgical variables included length of stay, surgical time, and anesthesia time. Outcomes were number of intra- and post-operative complications, reoperations, ER visits within 30 days, and total implant cost. Mann-Whitney U tests were performed to test for differences between SS and PC groups in surgical variables. Chi-square or Fisher's exact tests were performed to test differences in demographics and outcome variables.

Results: There were 107 patients identified. The PC group represented 16% (n = 17) of our study population. The PC group was significantly younger than the SS group at 10 years (2.8) vs 12 years (3.5) p = 0.04. No differences were observed in length of stay and anesthesia time between the two groups. However, a significantly longer length of surgery was observed in the PC group at 33.5 min [30.0-43.3] when compared to the SS group at 28.0 min [23.0-36.0] (p = 0.003). No significant differences were seen in post-op complications, post-op ED visits and reoperations within 30 days. The median total implant cost of the PC closure method was significantly lower than the SS method ($35.36 vs. $375.67 p = <0.001).

Conclusion: There were no significant differences in clinical outcomes. However, the significant difference in the implant cost between the 2 methods could favor the use of PC for selected cases. The increase in length of surgery can be attributed to the learning curve associated with a new device.