Background: An inadequate closure of the appendix stump leads to intra-abdominal surgical site infection. The effectiveness of various appendiceal stump closure methods, for instance, staplers or endoloops, was evaluated. Many analyses show that the use of a stapler for transection and closure of the appendiceal stump lowers the risk of this infection but a statistically significant risk of postoperative intra-abdominal abscess or wound infection was not considered in any randomized study. The aim of this study was to evaluate the complications after using endoloops in a high-volume center.
Methods: The data of 1,790 patients who underwent laparoscopic appendectomy between January 1998 and December 2006 and a single center was prospectively acquired. The standard procedure used was an appendiceal stump closure using endoloops and a selective use of staplers. The outcome criteria for inclusion in the study were intra-abdominal abscess formations, other specific intraoperative and postoperative complications, and the different costs of the operation.
Results: Laparoscopic appendectomy was performed in 1,790 (80.8%) patients and open appendectomy in 425 (19.2%) patients. Conversion to open surgery occurred in 74 (4.13%) patients. Laparoscopic appendectomy with stump closure using endoloops was performed in 1,670 (97.3%) patients and stump closure using a stapler in 46 (2.7%) patients. Among 851 patients with acute appendicitis, 284 patients with perforated appendicitis, and 535 patients with other or no pathology, the rate of intra-abdominal abscess after using an endoloop or a stapler was not significantly different (1.5 vs. 0%, p = 0.587; 3.5 vs. 4.2%, p = 0.870; 0.7% vs. 0, p = 0.881, respectively). There were no significant differences between the endoloop group and the stapler group with respect to the other specific intraoperative and postoperative complications.
Conclusion: This study shows the safety of the endoloop for clinical daily routine. A selective procedure for stump closure has been established. Appendiceal stump closure using an endoloop is an easy, safe, and cost-effective procedure.
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