Evidence map›Paper›PMID 22612995›Full record

ArticleBMC surgery2012

Male infertility after endoscopic Totally Extraperitoneal (Tep) hernia repair (Main): rationale and design of a prospective observational cohort study.

Nelleke Schouten, Thijs van Dalen, Niels Smakman, Sjoerd G Elias, Cees van de Water, Roan J Spermon, Laurens Sibinga Mulder, Ine P J Burgmans

Open access · goldAbstract read
In one paragraph

Article in BMC surgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
0.3field-weighted citation impact, top 34% 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. TEP for elective primary unilateral inguinal hernia repair in men: what do we know?Hernia : the journal of hernias and abdominal wall surgery · 2019
    Pooled it
  2. Pooled it
  3. International guidelines for groin hernia management.Hernia : the journal of hernias and abdominal wall surgery · 2018
    Guideline
  4. Incarcerated Inguinal Hernia Mesh Repair: Effect on Testicular Blood Flow and Sperm Autoimmunity.Medical science monitor : international medical journal of experimental and clinical research · 2016
    Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Observational
  10. Crossover transseptal vasovasostomy: alternative for very selected cases of iatrogenic injury to vas deferens.International braz j urol : official journal of the Brazilian Society of Urology
    Article
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

8 authors at 1 institution in 1 country.

Nelleke SchoutenDepartment of Surgery/Hernia Clinic, Diakonessenhuis Utrecht/Zeist, Utrecht, The Netherlands. nelleke.schouten@gmail.com
Thijs van Dalen
Niels Smakman
Sjoerd G Elias
Cees van de Water
Roan J Spermon
Laurens Sibinga Mulder
Ine P J Burgmans
Diakonessenhuis hospital · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo describe the rationale and design of an observational cohort study analyzing the effects of endoscopic Totally Extraperitoneal (TEP) hernia repair on male fertility (MAIN study). METHODS AND

designThe MAIN study is an observational cohort study designed to assess fertility after endoscopic TEP hernia repair. The setting is a high-volume single center hospital, specialized in TEP hernia repair. Male patients of 18-60 years of age, with primary, reducible, bilateral inguinal hernias and no contraindications for endoscopic TEP repair are eligible for inclusion in this study. Patients with an ASA-classification≥III and patients with recurrent and/or scrotal hernias and/or a medical history of pelvic surgery and/or radiotherapy, known fertility problems, diabetes and/or other diseases associated with a risk of fertility problems, will be excluded. The primary outcome is the testicular perfusion before and 6 months after TEP hernia repair (assessed by means of a scrotal ultrasonography). Secondary endpoints are the testicular volume (Ultrasound), semen quality and quantity and the endocrinological status, based on serum levels of the sexual hormones follicle-stimulating hormone (FSH), luteinizing hormone (LSH), testosterone and inhibin B before and 6 months after TEP hernia repair. DISCUSSION: The use of polypropylene mesh is associated with a strong foreign body reaction which could play a role in chronic groin pain development. Since the mesh in (endoscopic) inguinal hernia repair is placed in close contact to the vas deferens and spermatic vessels, the mesh-induced inflammatory reaction could lead to a dysfunction of these structures. Relevant large and prospective clinical studies on the problem are limited. This study will provide a complete assessment of fertility in male patients who undergo simultaneous bilateral endoscopic TEP hernia repair, by analyzing testicular perfusion and volume, semen quantity and quality and endocrinological status before and 6 months after TEP repair.

trial registrationThe MAIN study is registered in the Dutch Trial Register (NTR2208).

Indexed as

EndoscopySurgical MeshAdolescentAdultHernia, InguinalHerniorrhaphyHumansInfertility, MaleMaleMiddle AgedYoung Adult

Identifiers

PMID22612995
PMCPMC3414734
OpenAlexW2139558805

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.