Robotic Versus Conventional Minimal-Invasive Inguinal Hernia Repair: Study Protocol for a Prospective, Randomized and Blinded Clinical Trial

Fiorenzo V Angehrn, Kerstin J Neuschütz, Johannes Baur, Romano Schneider, Alexander Wilhelm, Lea Stoll, Julian Süsstrunk, Markus von Flüe, Martin Bolli, Daniel C Steinemann, Fiorenzo V Angehrn, Kerstin J Neuschütz, Johannes Baur, Romano Schneider, Alexander Wilhelm, Lea Stoll, Julian Süsstrunk, Markus von Flüe, Martin Bolli, Daniel C Steinemann

Abstract

Introduction: Inguinal hernia repairs are commonly performed procedures. The surgical techniques vary from open procedures to minimally invasive and robotic-assisted surgeries and include totally extra-peritoneal hernia repairs (TEP) and robotic transabdominal pre-peritoneal hernia repairs (rTAPP). So far, there is no randomized and blinded clinical trial comparing these two surgical approaches. Our objective is to investigate whether rTAPP is associated with a decreased postoperative level of pain.

Methods: This is a prospective, single center, randomized and blinded clinical trial. Patients will receive either rTAPP or TEP for uni- or bilateral inguinal hernias. All patients and assessors of the study are blinded to the randomization. The perioperative setting is standardized, and all surgeons will perform both rTAPP and TEP to eliminate surgeons` bias. Primary endpoint is the assessment of pain while coughing 24 hours after surgery using the numeric rating scale (NRS). Secondary endpoints include the assessment of multiple pain and quality of life questionnaires at several defined times according to the study schedule. Furthermore, intra- and postoperative complications, duration until discharge, procedure time, duration of postoperative sick leave and the recurrence rate will be evaluated.

Registry: The trial has been registered at ClinicalTrials.gov under the registry number NCT05216276.

Highlights: Trial comparing robotic and conventional minimal-invasive inguinal hernia repairRandomized and patient/assessor blinded trialEarly postoperative pain as primary outcome (24 hours)Secondary patient outcomes include pain and quality of life scores up to one yearFurther secondary outcomes: complications, costs, surgeon's stress level.

Keywords: inguinal hernia; randomized and blinded clinical trial; robotic transabdominal preperitoneal hernia repair (rTAPP); totally extraperitoneal hernia repair (TEP).

Conflict of interest statement

The authors have no competing interests to declare.

Copyright: © 2022 The Author(s).

Figures

Figure 1
Figure 1
Flowchart of participant recruitment, randomization and follow-up.
Figure 2
Figure 2
Study schedule including time, manner of assessment and item.

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