Evidence map›Paper›PMID 36622458›Full record

Observational studyLangenbeck's archives of surgery2023

Inguinal hernia treatment in Switzerland: inpatient vs. outpatient setting - HerStAmb Study (prospective observational two-centre comparative study).

Michal Ziga, Laurin Burla, Adrienne Imhof, Thomas Gürtler, Markus Weber

Erratum issued Registry-linked trialAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Langenbeck's archives of surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT05234242 (Inguinal Hernia Treatment), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 33% 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.

NCT05234242 completednot on this map

Inguinal Hernia Treatment: Stationary/Inpatient vs. Ambulatory/Outpatient Setting - HerStAmb Study (Prospective Non-randomized Multicenter Comparative Study)

TypeobservationalSponsorDr. Michal ZigaRan2019 to 2020Enrolled237ConditionsOutcome of Outpatient/Ambulatory and Inpatient/Stationary SettingArmsinguinal hernia repair
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. [Challenges in outpatient surgical treatment in Germany].Chirurgie (Heidelberg, Germany) · 2025
    Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Michal ZigaDepartment of Surgery, Cantonal Hospital Schaffhausen, Geisbergstrasse 81, CH-8208, Schaffhausen, Switzerland. michal.ziga@gmail.com.ORCID http://orcid.org/0000-0001-8071-246X
Laurin BurlaDepartment of Visceral-, Thoracic- and Vascular Surgery, Triemli City Hospital, Birmensdorferstrasse 497, CH-8063, Zurich, Switzerland.
Adrienne ImhofDepartment of Surgery, Cantonal Hospital Schaffhausen, Geisbergstrasse 81, CH-8208, Schaffhausen, Switzerland.
Thomas GürtlerDepartment of Visceral-, Thoracic- and Vascular Surgery, Triemli City Hospital, Birmensdorferstrasse 497, CH-8063, Zurich, Switzerland.
Markus WeberDepartment of Visceral-, Thoracic- and Vascular Surgery, Triemli City Hospital, Birmensdorferstrasse 497, CH-8063, Zurich, Switzerland.
Triemli Hospital · CHSpitäler Schaffhausen · CHUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSince 01/2018, AVOS (ambulant vor stationär = outpatient to inpatient) regulation has been progressively implemented in hernia surgery in Switzerland. The aim of this prospective, observational, two-centre comparative study was to compare the outcome of outpatient and inpatient post-operative care in terms of AVOS by examining the re-admission rate, complication rate and quality of life in patients with primary unilateral inguinal hernia repair.

methodsThe study ran between 01/2019 and 04/2020 and included 237 patients with a primary unilateral inguinal hernia. Treatment setting was decided according to AVOS guidelines. Primary endpoint was re-admission rate within 6 weeks postoperatively. Secondary endpoints were the complication rate and patient outcome (quality of life) at 6 weeks follow-up postoperatively, as measured by the Short Form 36 Health Survey Questionnaire (SF-36).

resultsComplications occurred in 11 (14%) inpatient patients, but none required re-admitting for revision until follow-up at 6 weeks after discharge. In the outpatient group, there were 27 (17%) complications reported, while 6 (4%) of these patients crossed over to the inpatient group immediately after surgery. None of the other complications required re-admission until follow-up at 6 weeks. No significant relationship between treatment setting and number of complications/re-admission rate (p=0.458, p=0.061) was observed. The mean outcome (SF-36) between the treatment groups was not significantly different (p=0.16-0.856).

conclusionIn terms of AVOS selection criteria in Switzerland, primary unilateral inguinal hernia can be safely treated in both treatment settings. Re-admission rates, complications and quality of life do not significantly differ. Day surgery in terms of AVOS might be as effective and efficient, both from the patient's perspective and that of the institution. TRIAL REGISTRATION NUMBER: NCT05234242.

Indexed as

Hernia, InguinalHerniorrhaphyHumansInpatientsOutpatientsProspective StudiesQuality of LifeRecurrenceSurgical MeshSwitzerlandTreatment OutcomeAVOSComplicationsInguinal hernia treatmentInpatientOutcomeOutpatientRe-admission

Identifiers

PMID36622458
OpenAlexW4313815636

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.