A historically controlled, single-arm, multi-centre, prospective trial to evaluate the safety and efficacy of MonoMax suture material for abdominal wall closure after primary midline laparotomy. ISSAAC-Trial [NCT005725079]

Lars Fischer, Petra Baumann, Johannes Hüsing, Christoph Seidlmayer, Markus Albertsmeier, Annette Franck, Steffen Luntz, Christoph M Seiler, Hanns-Peter Knaebel, Lars Fischer, Petra Baumann, Johannes Hüsing, Christoph Seidlmayer, Markus Albertsmeier, Annette Franck, Steffen Luntz, Christoph M Seiler, Hanns-Peter Knaebel

Abstract

Background: Several randomized controlled trials have compared different suture materials and techniques for abdominal wall closure with respect to the incidence of incisional hernias after midline laparotomy and shown that it remains, irrespective of the methods used, considerably high, ranging from 9% to 20%. The development of improved suture materials which would reduce postoperative complications may help to lower its frequency.

Design: This is a historically controlled, single-arm, multi-centre, prospective trial to evaluate the safety of MonoMax suture material for abdominal wall closure in 150 patients with primary elective midline incisions. INSECT patients who underwent abdominal closure using Monoplus and PDS will serve as historical control group. The incidences of wound infections and of burst abdomen are defined as composite primary endpoints. Secondary endpoints are the frequency of incisional hernias within one year after operation and safety. To ensure adequate comparability in surgical performance and recruitment, the 4 largest centres of the INSECT-Trial will participate. After hospital discharge, the investigators will examine the enrolled patients again at 30 days and at 12 +/- 1 months after surgery.

Conclusion: This historically controlled, single-arm, multi-centre, prospective ISSAAC trial aims to assess whether the use of an ultra-long-lasting absorbable monofilament suture material is safe and efficient.

Trial registration: NCT005725079.

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