Evidence map›Paper›PMID 21555962›Full record

ArticleObstetrics and gynecology2011

A comparison of obstetric maneuvers for the acute management of shoulder dystocia.

Matthew K Hoffman, Jennifer L Bailit, D Ware Branch, Ronald T Burkman, Paul Van Veldhusien, Li Lu, Michelle A Kominiarek, Judith U Hibbard, Helain J Landy, Shoshana Haberman and 9 more

Abstract readComparative Study
In one paragraph

Article in Obstetrics and gynecology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 173 citations in OpenAlex.

  1. Pooled it
  2. Overcoming shoulder dystocia with the Zavanelli maneuver: a case report.International journal of surgery case reports · 2026
    Article
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  8. Sudden Collapse of a Newborn Infant Following Delivery Complicated by Shoulder Dystocia.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2024
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  9. Article
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  12. Management of shoulder dystocia.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
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  13. Article
  14. Shoulder dystocia and composite adverse outcomes for the maternal-neonatal dyad.American journal of obstetrics & gynecology MFM · 2021
    Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors at 1 institution in 1 country.

Matthew K HoffmanFrom Christiana Care Health System, Newark, Delaware; MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio; Intermountain Healthcare and the University of Utah, Salt Lake City, Utah; Tufts University, Baystate Medical Center, Springfield, Massachusetts; the EMMES Corporation, Rockville, Maryland; Indiana University Clarian Health, Indianapolis, Indiana; the University of Illinois at Chicago, Chicago, Illinois; Georgetown University Hospital, MedStar Health, Washington, DC; Maimonides Medical Center, Brooklyn, New York; the University of Miami, Miami, Florida; Cedars-Sinai Medical Center, Los Angeles, California; Summa Health Systems Akron City Hospital, Akron, Ohio; the University of Texas Health Science Center at Houston, Houston, Texas; and the Pregnancy and Perinatology Branch and the Division of Epidemiology, Statistics and Prevention Research, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
Jennifer L Bailit
D Ware Branch
Ronald T Burkman
Paul Van Veldhusien
Li Lu
Michelle A Kominiarek
Judith U Hibbard
Helain J Landy
Shoshana Haberman
Isabelle Wilkins
Victor H Gonzalez-Quintero
Kimberly D Gregory
Christos G Hatjis
Mildred M Ramirez
Uma M Reddy
James Troendle
Jun Zhang
Consortium on Safe Labor
Christiana Care Health System · US

Funding

Intramural NIH HHSNICHD NIH HHS HHSN267200603425CNIDDK NIH HHS HHSN267200603425C
6 · The paper itself

Abstract

objectiveTo assess the efficacy of obstetric maneuvers for resolving shoulder dystocia and the effect that these maneuvers have on neonatal injury when shoulder dystocia occurs.

methodsUsing an electronic database encompassing 206,969 deliveries, we identified all women with a vertex fetus beyond 34 0/7 weeks of gestation who incurred a shoulder dystocia during the process of delivery. Women whose fetuses had a congenital anomaly and women with an antepartum stillbirth were excluded. Medical records of all cases were reviewed by trained abstractors. Cases involving neonatal injury (defined as brachial plexus injury, clavicular or humerus fracture, or hypoxic-ischemic encephalopathy or intrapartum neonatal death attributed to the shoulder dystocia) were compared with those without injury.

resultsAmong 132,098 women who delivered a term cephalic liveborn fetus vaginally, 2,018 incurred a shoulder dystocia (1.5%), and 101 (5.2%) of these incurred a neonatal injury. Delivery of the posterior shoulder was associated with the highest rate of delivery when compared with other maneuvers (84.4% compared with 24.3-72.0% for other maneuvers; P<.005 to P<.001) and similar rates of neonatal injury (8.4% compared with 6.1-14.0%; P=.23 to P=.7). The total number of maneuvers performed significantly correlated with the rate of neonatal injury (P<.001).

conclusionDelivery of the posterior shoulder should be considered following the McRoberts maneuver and suprapubic pressure in the management of shoulder dystocia. The need for additional maneuvers was associated with higher rates of neonatal injury.

Indexed as

ShoulderAdultDelivery, ObstetricDystociaFemaleHumansLogistic ModelsPregnancyRetrospective Studies

Identifiers

PMID21555962
PMCPMC3101300
OpenAlexW2103865938

What OpenQuestion holds

Textmetadata
LicenceTDM
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.