Outcomes of surgery on patients with a clinically inapparent inguinal hernia as diagnosed by ultrasonography

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Long-term results from a randomized comparison of open transinguinal preperitoneal hernia repair and the Lichtenstein method (TULIP trial)

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Teaching the transrectus sheath preperiotneal mesh repair: TREPP in 9 steps

BACKGROUND: The preperitoneal mesh position seems preferable to reduce the number of patients with postoperative chronic pain after inguinal hernia surgery. The transrectus sheath preperitoneal mesh repair (TREPP) is gaining popularity. Teaching a new technique requires a standardized approach to achieve an optimal learning curve. The aim of this paper was to provide a step-by-step teaching module for hernia surgeons learning the TREPP. METHODS: Literature was critically reviewed and the forthcoming nine surgical steps of the new TREPP technique and its rationale are described in this article. The TREPP hernia repair technique is illustrated with an online education video and three photos of the anatomical landmarks and the proposed mesh position of TREPP. RESULTS: The nine steps of TREPP are described extensively and the critical steps are presented in a standardized way for surgical educational purposes. Also the rationale and technical considerations of inguinal hernia experts are presented. DISCUSSION: TREPP may be a promising technique for groin hernia surgery. To date there have been no major complications with the TREPP repair which is currently the subject of a RCT. The learning curve of TREPP is being investigated and teaching of this technique requires standardization for trainee surgeons. CONCLUSION: TREPP potentially merges the advantages of a preperitoneal positioned mesh with an open technique. Initial results are promising and TREPP seems to be applicable in different hospitals in the Netherlands. Since the start of an active teaching program, TREPP has been introduced and accepted well by dedicated hernia surgeons in other hospitals in the Netherlands and Europe

Open Preperitoneal Inguinal Hernia Repair, TREPP Versus TIPP in a Randomized Clinical Trial

OBJECTIVE: The aim of this study was to compare chronic postoperative inguinal pain (CPIP) in patients with an inguinal hernia after the TransREctus Sheath PrePeritoneal (TREPP) and the TransInguinal PrePeritoneal Technique (TIPP). BACKGROUND: The preperitoneal mesh position for inguinal hernia repair showed beneficial results regarding CPIP with low recurrence rates. Two open preperitoneal techniques, TREPP and TIPP, were compared in a randomized clinical trial with the hypothesis of fewer patients with CPIP after TREPP due to complete avoidance of nerve contact. METHODS: Adult patients with a primary unilateral inguinal hernia were randomized to either TREPP or TIPP in four hospitals. Before the trial's start the study protocol was ethically approved and published. Outcomes included CPIP after 1 year (primary outcome) and recurrence rates, adverse events, and health-related quality of life (secondary outcomes). Follow-up was performed at 2 weeks, 6 months, and 1 year. RESULTS: Baseline characteristics were comparable in both groups. Pain was less often present after TREPP at 2 weeks and 6 months, but CPIP at rest at 1 year was comparable: 1.9% after TREPP vs 1.4% after TIPP, P = 0.535). The overall recurrence rate was higher in the TREPP group, 8.9% vs 4.6%, P = 0.022). Corrected for a learning curve for TREPP, no significant difference could be assessed (TREPP 5.7% and TIPP 4.8%, P = 0.591). CONCLUSION: Both the TREPP and TIPP technique resulted in a low incidence of CPIP after 1-year follow-up. The TREPP method can be considered a solid method for inguinal hernia repair if expertise is present. The learning curve of the TREPP techniques needs further evaluation. TRIAL REGISTRATION: ISRCTN18591339