Evidence map›Paper›PMID 28864955›Full record

Trial reportHernia : the journal of hernias and abdominal wall surgery2017

Laparoscopic extraperitoneal repair versus open inguinal hernia repair: 20-year follow-up of a randomized controlled trial.

A Barbaro, H Kanhere, J Bessell, G J Maddern

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Hernia : the journal of hernias and abdominal wall surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

A BarbaroUniversity of Adelaide, Discipline of Surgery, The Queen Elizabeth Hospital, Woodville, South Australia, Australia.
H KanhereUniversity of Adelaide, Discipline of Surgery, The Queen Elizabeth Hospital, Woodville, South Australia, Australia.
J BessellDepartment of Surgery, Flinders University, Bedford Park, South Australia, Australia.
G J MaddernUniversity of Adelaide, Discipline of Surgery, The Queen Elizabeth Hospital, Woodville, South Australia, Australia. guy.maddern@adelaide.edu.au.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study compared the long-term recurrence rates of laparoscopic totally extraperitoneal (TEP) and open inguinal hernia repair in patients from a randomised trial completed in 1994. Laparoscopic inguinal hernia surgery, especially TEP repair, has gained widespread acceptance in recent years. There is still paucity of data on long-term follow-up comparing recurrence rates for open and laparoscopic techniques. This is the first study providing direct long-term comparative data about these techniques.

methodsA randomised controlled trial was conducted between 1992 and 1994 on patients undergoing a laparoscopic TEP or an open inguinal hernia (Shouldice) repair at our institution. Of the original 104 participants, contemporary follow-up data could be obtained for 98 patients with regards to long-term recurrence. These data were collected with the help of questionnaires, telephone calls and retrieval of case records. Medical records were reviewed for all patients. Data were analysed using a Cox proportional hazards model.

resultsThere were 7/72 (9.7%) recurrences in the open group and 9/35 (25.7%) recurrences in the laparoscopic group. This difference in recurrence rates was statistically significant (HR = 2.94; 95% CI 1.05-8.25; p = 0.041.)

conclusionLaparoscopic TEP inguinal hernia repair performed in 1992-1994 had a higher recurrence rate than open Shouldice inguinal hernia repair during the same period. The original study was undertaken in the inceptive days of laparoscopic surgery and results need to be interpreted considering the technology and expertise available at that time.

Indexed as

AdolescentAdultAgedAged, 80 and overFemaleFollow-Up StudiesHernia, InguinalHerniorrhaphyHumansLaparoscopyMaleMiddle AgedPeritoneumRecurrenceYoung AdultExtraperitonealInguinal herniaLaparoscopyLong term outcomes

Identifiers

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Registered trials

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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.