Efficacy of establishment of pneumoperitoneum with the Veress needle, Hasson trocar, and modified blunt trocar (TrocDoc): A randomized study

Purpose: To compare three techniques of establishment of pneumoperitoneum f or efficacy: the Veress needle/first trocar, the Hasson trocar, and a newly developed modified blunt trocar, the TrocDoc. Patients and Methods: Between June and December 1999, 62 patients eligible for laparoscopic surgery were randomized. The effectiveness of installation of the pneumoperitoneum using the three techniques was assessed by time-mo tion analysis. Primary efficacy measures were total time and number of acti ons required to establish the pneumoperitoneum. Secondary efficacy measures were procedure-related complications, wound complications, and occurrence of CO2 leakage. Results: Two patients were withdrawn from inclusion. The three groups were comparable for age and body mass index. Total time was shortest using the T rocDoc rather than the Veress needle/first trocar and the Hasson trocar (re spectively, 138 +/- 58 v 237 +/- 56 v 350 +/- 103 seconds), and the number of actions was lowest for the Veress needle/first trocar combination: 22 +/ - 7 v 32 +/- 12 (TrocDoc) v 53 +/- 17 (Hasson). There was no morbidity rela ted to the installation of pneumoperitoneum nor trocar wound complications. Gas leakage occurred in five of the Hasson introductions. Conclusions: Establishment of the pneumoperitoneum is more efficient using the TrocDoc compared with the Veress needle/first trocar and the Hasson tro car. The TrocDoc might replace the two alternatives because of its efficacy and open method of introduction.