Evidence map›Paper›PMID 39621067›Full record

ArticleSurgery today2025

State of groin hernia repair in Japan: Annual Report of 2022 from the National Clinical Database.

Saseem Poudel, Hiroyuki Yamamoto, Kyosuke Miyazaki, Hitoshi Idani, Masanori Sato, Tsuyoshi Takagi, Itsuro Nagae, Taketo Matsubara, Ken Shirabe, Hideki Ueno and 1 more

Abstract read
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Article in Surgery today, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

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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

11 authors.

Saseem PoudelHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Hiroyuki YamamotoDepartment of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Kyosuke MiyazakiHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan. kyosukemiyazaki1@me.com.
Hitoshi IdaniHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Masanori SatoHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Tsuyoshi TakagiHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Itsuro NagaeHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Taketo MatsubaraHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Ken ShirabeThe Japanese Society of Gastroenterological Surgery, Tokyo, Japan.
Hideki UenoDatabase Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan.
Takehiro HachisukaHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe National Clinical Database (NCD) in Japan captures over 95% of the surgeries performed by general surgeons. In May 2021, the Japan Hernia Society (JHS) introduced additional categories for groin hernia repair at JHS-registered institutions. This study presents the 2022 data on groin hernia repair from the NCD.

methodsThis study included all cases of groin hernia repair registered in the NCD for 2022. The basic data collected included age, sex, type of surgery, day surgery status, emergency status, and anesthesia involvement. For JHS-registered institutions, data on hernia laterality, whether the case was primary or recurrent, surgical details, and groin hernia classifications were also collected.

resultsOf the 908 institutions reporting to the NCD, 459 (50.6%) were JHS registered. A total of 118,365 groin hernia repairs were recorded, of which 43,952 (37.1%) were from JHS-registered institutions. Endoscopic repair accounted for 53.3% (n = 63,208) of the patients. Day surgery was performed in 5.1% (n = 6045) of the patients. At JHS-registered institutions, 81.6% of bilateral hernias were treated by endoscopic repair; 68.1% were lateral hernias. The most commonly used method was the TAPP method, which was applied in 48.8% of cases.

conclusionsAlthough endoscopic repair is widely used in Japan, day surgery rates remain low. Improving data collection and increasing NCD participation are crucial for aligning with international standards.

Indexed as

Databases, FactualHernia, InguinalHerniorrhaphyAdolescentAdultAgedAged, 80 and overAmbulatory Surgical ProceduresAnnual Reports as TopicEndoscopyFemaleHumansJapanMaleMiddle AgedSocieties, MedicalDay surgeryEndoscopic repairGroin hernia repairNational registry

Identifiers

PMID39621067

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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.