The influence of the different forms of appendix base closure on patient outcome in laparoscopic appendectomy: a randomized trial

Abstract

Background

During laparoscopic appendectomy, the base of the appendix is usually secured by loop ligature or stapling device. Hem-o-lok and DS clips have been shown as alternative techniques. The aim of this study was to compare the clinical outcomes of various forms of securing the base of the appendix, in order to find the most suitable method.

Patients and methods

The study included 120 patients with acute appendicitis randomly divided into four groups with 30 patients in each. In the first group, the base of the appendix was secured using an Endoloop, in the second group using a stapling device, in the third group using Hem-o-lok, and in the fourth group using a DS clip. The primary outcome was overall morbidity following securing the base of the appendix. Secondary outcomes were time of application and operative procedure, total length of stay, and surgical outcome.

Results

No morbidity was recorded in any group. The time of application was significantly longer in the Endoloop group than in the Stapler (P < 0.0001), Hem-o-lok (P < 0.0001), and DS clips (P < 0.0001) groups. The time of application in the Stapler group was significantly shorter than in the Hem-o-lok (P < 0.0001) and the DS clips (P < 0.0001) groups. The time of the operative procedure was significantly longer in the Endoloop than in the Stapler group (P < 0.0001). The time of the operative procedure in the Stapler group was significantly shorter than in the DS clips group (P < 0.0001) but did not differ significantly from the Hem-o-lok group (P = 0.199). The time of the operative procedure in the Hem-o-lok group was significantly shorter than in the DS clips group (P = 0.044).

Conclusion

All forms of closure of the appendix base are acceptable, but Hem-o-lok and DS clips have the best potential for further development, and will probably become the method of choice in securing the base of the appendix.

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