Rare Intraoperative and Postoperative Complications After Transabdominal Laparoscopic Hernia Repair: Results from the Multicenter Wall Hernia Group Registry.

Background: Inguinal hernioplasty is the most frequently performed operation in the Western world today. Although the laparoscopic approach for inguinal hernia repair has shown excellent results in terms of complications and recurrences, the anterior approach is still the most used. Postoperative pain and recurrences are the most widely studied complications in both approaches, but there is little information about the often more troublesome rare complications of laparoscopic surgery and their treatment. Methods: In the period from January 1, 2014 to December 31, 2019, 1874 hernioplasty operations were performed with the transabdominal approach and recorded prospectively in the Wall Hernia Group database. The mean follow-up was 47 months (range 3-64 months). All less frequent complications were analyzed and a literature review was carried out to assess the presence of similar cases and their treatment in other series. Results: Eight cases of rare complications were identified and subdivided according to the Clavien-Dindo classification. They included a bowel perforation, 4 cases of bleeding, 2 bowel obstructions, and an injury to the motor branch of the obturator nerve. The postoperative course in these patients was significantly longer than in patients with a regular postoperative course. In 2 cases the complication occurred during the first admission, while the remaining 6 patients had to be readmitted within 30 days after discharge. Conclusions: Although serious postoperative complications in laparoscopic inguinal hernioplasty are rare, all surgeons, also those who have completed the learning curve, should be aware of their possible occurrence.