Evidence map›Paper›PMID 35006472›Full record

SynthesisHernia : the journal of hernias and abdominal wall surgery2022

Meta-analysis of the outcomes of Trans Rectus Sheath Extra-Peritoneal Procedure (TREPP) for inguinal hernia.

S Hajibandeh, S Hajibandeh, L A Evans, T J Havard, N N Naguib, A H Helmy

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Hernia : the journal of hernias and abdominal wall surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Groin hernia.Nature reviews. Disease primers · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

S HajibandehDepartment of General Surgery, Royal Glamorgan Hospital, Cwm Taf University Health Board, Pontyclun, UK. shahab_hajibandeh@yahoo.com.ORCID 0000-0002-3294-4335
S HajibandehHepatobiliary and Pancreatic Surgery and Liver transplant Unit, Queen Elizabeth Hospital, Birmingham, UK.
L A Evans *Department of General Surgery, Royal Glamorgan Hospital, Cwm Taf University Health Board, Pontyclun, UK.
T J HavardDepartment of General Surgery, Royal Glamorgan Hospital, Cwm Taf University Health Board, Pontyclun, UK.
N N NaguibDepartment of General Surgery, Royal Glamorgan Hospital, Cwm Taf University Health Board, Pontyclun, UK.
A H HelmyDepartment of General Surgery, Royal Glamorgan Hospital, Cwm Taf University Health Board, Pontyclun, UK.ORCID 0000-0002-3478-2990
Royal Glamorgan Hospital · GBQueen Elizabeth Hospital Birmingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate the outcomes of Trans Rectus Sheath Extra-Peritoneal Procedure (TREPP) in patients undergoing elective inguinal hernia repair.

methodsIn compliance with PRISMA statement standards, electronic databases were searched to identify all studies reporting the outcomes of TREPP in patients undergoing elective inguinal hernia repair. The outcomes of interest included recurrence, chronic pain, haematoma, and wound infection. Proportion meta-analysis model was constructed to quantify the risk of postoperative complications and direct comparison meta-analysis model was constructed to compare the outcomes of TREPP and other open techniques. Random-effects modelling was applied to calculate pooled outcome data.

resultsSeven studies enrolling 1891 patients undergoing TREPP were included. The mean operative time was 26 min (95% CI 15-36). Pooled analyses showed that TREPP was associated with 3.00% (95% CI 1.00-6.00%) risk of recurrence, 3.00% (95% CI 2.00-6.00%) risk of chronic pain, 8.00% (95% CI 0.00-20.00%) risk of haematoma, and 3.00% (95% CI 0.00-6.00%) risk of wound infection. The results remained consistent through subgroup analysis of patients with primary hernias and those with recurrent hernias. Analysis of a limited number of comparative studies showed no difference between TREPP and Lichtenstein technique in terms of recurrence (OR 1.57, P = 0.26) and chronic pain (OR 1.16, P = 0.59).

conclusionsThe best available evidence suggests that TREPP may be a promising technique for elective repair of inguinal hernias as indicated by low risks of recurrence, chronic pain, haematoma, and wound infection. The available evidence is limited to studies from a same country conducted by almost the same research group which may affect generalisability of the findings. Moreover, there is a lack of comparative evidence on outcomes of TREPP versus other techniques highlighting a need for high-quality randomised controlled trials for definite conclusions. Although the available evidence is not adequate for definite conclusions, the results of current study can be used for sample size calculation and power analysis in future trials.

Indexed as

Chronic PainHernia, InguinalWound InfectionHematomaHerniorrhaphyHumansPostoperative PainRecurrenceSurgical MeshHernia repairInguinal herniaTREPP

Identifiers

PMID35006472
OpenAlexW4206330626

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.