Evidence map›Paper›PMID 33835325›Full record

ArticleHernia : the journal of hernias and abdominal wall surgery2021

Lower reoperation rates after open and laparoscopic groin hernia repair when performed by high-volume surgeons: a nationwide register-based study.

C Christophersen, J J Baker, S Fonnes, K Andresen, J Rosenberg

Abstract read
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In one paragraph

Article in Hernia : the journal of hernias and abdominal wall surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Article
  7. Observational
  8. A new groin hernia classification with clinical relevance.Hernia : the journal of hernias and abdominal wall surgery · 2024
    Article
  9. Review
  10. Separating the components of an abdominal wall fellowship.Annals of the Royal College of Surgeons of England · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

C ChristophersenCenter for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Borgmester Ib Juuls Vej 1, 2730, Herlev, Denmark. christophersen.camilla@gmail.com.ORCID 0000-0002-9386-7898
J J BakerCenter for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Borgmester Ib Juuls Vej 1, 2730, Herlev, Denmark.ORCID 0000-0002-9272-9637
S FonnesCenter for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Borgmester Ib Juuls Vej 1, 2730, Herlev, Denmark.ORCID 0000-0002-8757-831X
K AndresenCenter for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Borgmester Ib Juuls Vej 1, 2730, Herlev, Denmark.ORCID 0000-0002-9820-3580
J RosenbergCenter for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Borgmester Ib Juuls Vej 1, 2730, Herlev, Denmark.ORCID 0000-0002-0063-1086
University of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePrevious studies have shown a correlation between surgeons with high annual volume and better outcomes after various surgical procedures. However, the preexisting literature regarding groin hernia repair and annual surgeon volume is limited. The aim was to investigate how annual surgeon volume affected the reoperation rates for recurrence after primary groin hernia repair.

methodsThis nationwide cohort study was based on data from the Danish Hernia Database and the Danish Patient Safety Authority's Online Register. Patients ≥ 18 years undergoing laparoscopic or Lichtenstein primary groin hernia repair between November 2011 and January 2020 were included. Annual surgeon volume was divided into five categories: ≤ 10, 11-25, 26-50, 51-100, and > 100 cases/year.

resultsWe included 25,262 groin hernia repairs performed in 23,088 patients. The risk of reoperation for recurrence after Lichtenstein repair was significantly higher for the volume categories of ≤ 10 (HR 4.02), 11-25 (HR 3.64), 26-50 (HR 3.93), or 51-100 (HR 4.30), compared with the > 100 category. The risk of reoperation for recurrence after laparoscopic repair was significantly increased for the volume categories of ≤ 10 (HR 1.89), 11-25 (HR 2.08), 26-50 (HR 1.80), and 51-100 (HR 1.58) compared with the > 100 category.

conclusionThe risk of reoperation for recurrence was significantly higher after Lichtenstein and laparoscopic repairs performed by surgeons with < 100 cases/year compared with > 100 cases/year. This indicates that higher surgeon volume minimizes the risk of reoperation for recurrence after groin hernia repair.

Indexed as

Hernia, InguinalLaparoscopySurgeonsCohort StudiesGroinHerniorrhaphyHumansRecurrenceReoperationAnnual surgeon volumeGroin herniaInguinal herniaReoperation

Identifiers

PMID33835325
OpenAlexW3149743409

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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.