Evidence map›Paper›PMID 35715763›Full record

ArticleBMC pregnancy and childbirth2022

Impact of efforts to prevent maternal deaths due to obstetric hemorrhage on trends in epidemiology and management of severe postpartum hemorrhage in Japan: a nationwide retrospective study.

Akihiko Ueda, Baku Nakakita, Yoshitsugu Chigusa, Haruta Mogami, Shosuke Ohtera, Genta Kato, Masaki Mandai, Eiji Kondoh

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
13.3field-weighted citation impact, top 1% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Postpartum Hemorrhage.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2025
    Review
  10. The mode of delivery after operative fixation of pelvic ring fractures-a retrospective observational study.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Observational
  11. Article
  12. Article
  13. Prenatal hypertension as the risk of eclampsia, HELLP syndrome, and critical obstetric hemorrhage.Hypertension research : official journal of the Japanese Society of Hypertension · 2024
    Article
  14. Article
  15. The profile of patients with postpartum hemorrhage admitted to the obstetric intensive care: a cross-sectional study.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2024
    Article
  16. Article
  17. Article
  18. 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 2 institutions in 1 country.

Akihiko UedaDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan.
Baku NakakitaDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan.
Yoshitsugu ChigusaDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan.
Haruta MogamiDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan.
Shosuke OhteraDivision of Medical Information Technology and Administration Planning, Kyoto University Hospital/National Institute of Public Health, Kyoto, Japan.
Genta KatoSolutions Center for Health Insurance Claims, Kyoto University Hospital, Kyoto, Japan.
Masaki MandaiDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan.
Eiji KondohDepartment of Gynecology and Obstetrics, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo, Kyoto, 606-8507, Japan. kondo@kuhp.kyoto-u.ac.jp.
Kyoto University · JPKyoto University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Japan Society of Obstetrics and Gynecology and the Japan Association of Obstetricians and Gynecologists have issued the guidelines and recommendations on postpartum hemorrhage since 2010 and have been conducted widespread educational activities from 2012. The aim of this study was to investigate the impact of these efforts by the Societies to prevent maternal deaths due to obstetric hemorrhage on trends in epidemiology and management of severe postpartum hemorrhage in Japan.

methodsA national retrospective cohort study was conducted using the national database of health insurance claims for the period 2012 and 2018. The subjects were all insured women who received a blood transfusion for postpartum hemorrhage. The primary endpoints of this study were hysterectomy and maternal mortality. The etiology of hemorrhage, treatment facility, type of procedure, and blood transfusion volume were tabulated.

resultsWomen with postpartum hemorrhage that underwent transfusion increased from 3.5 to 5.5 per 1000 deliveries between 2012 and 2018. The most common cause of postpartum hemorrhage was atonic hemorrhage. After insurance coverage in 2013, the intrauterine balloon tamponade use increased to 20.3% of postpartum hemorrhages treated with transfusion in 2018, while the proportion of hysterectomy was decreased from 7.6% (2013-2015) to 6.4% (2016-2018) (p < 0.0001). The proportion of postpartum hemorrhage in maternal deaths decreased from 21.1% (2013-2015) to 14.1% (2016-2018) per all maternal deaths cases (p = 0.14). Cases with postpartum hemorrhage managed in large referral hospitals was increased (65.9% in 2012 to 70.4% in 2018) during the study period (p < 0.0001).

conclusionsThe efforts by the Societies to prevent maternal mortality due to obstetric hemorrhage resulted in a significant decrease in the frequency of hysterectomies and a downward trend in maternal mortality due to obstetric hemorrhage.

Indexed as

Maternal DeathPostpartum HemorrhageFemaleHumansHysterectomyJapanPostpartum PeriodPregnancyRetrospective StudiesArterial embolizationAtonic hemorrhageBlood transfusionFresh frozen plasmaHysterectomyMaternal mortalityPostpartum hemorrhageRed blood cellUterine balloon tamponade

Identifiers

PMID35715763
PMCPMC9205073
OpenAlexW4283022744

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.