Evidence map›Paper›PMID 28125101›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2017

Maternal body mass index and spontaneous contractility of human myometrium in pregnancy.

D J Crankshaw, Y M O'Brien, D A Crosby, J J Morrison

Abstract read
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In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. The Pathophysiology of Labor Dystocia: Theme with Variations.Reproductive sciences (Thousand Oaks, Calif.) · 2023
    Review
  4. Review
  5. Adiponectin links maternal metabolism to uterine contractility.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  6. Maternal parity and functional contractility of human myometrium in vitro in the third trimester of pregnancy.Journal of perinatology : official journal of the California Perinatal Association · 2019
    Article
  7. Article
  8. Article
  9. 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

4 authors at 2 institutions in 1 country.

D J CrankshawDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
Y M O'BrienDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
D A CrosbyDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
J J MorrisonDepartment of Obstetrics and Gynecology, National University of Ireland Galway, Galway University Hospital, Galway, Ireland.
Ollscoil na Gaillimhe – University of Galway · IEUniversity Hospital Galway · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThere is controversy as to whether maternal body mass index (BMI) influences the contractility of human myometrium in pregnancy. The aim of this study was to examine spontaneous contractile activity of human pregnant myometrium in vitro, with respect to maternal BMI. STUDY

designMyometrial tissue specimens were obtained at cesarean delivery from 74 women with BMI values ranging from 19 to 50.1 kg m

resultsThere was a significant correlation between maximum amplitude (P=0.007) and mean contractile force (P=0.001) with increasing BMI. However, the time to onset of contractions (P=0.009), and time taken to reach maximal amplitude (P=0.020) also increased with increasing BMI. No significant correlation was observed with BMI for other parameters studied. The mean maximum amplitude value for spontaneous contractions was 37±1 mN, the mean contractile force for spontaneous contractions was 4.1±0.1 mN, the average time to the first spontaneous contraction was 11.3±0.6 min and the average frequency of contractions was 6.5±0.2 per hour.

conclusionsThese results suggest that the time to onset of contractions is increased with increasing maternal BMI, but that the force developed is greater. In all other respects, human uterine contractility is unaffected by increasing BMI. These findings underline the complexity of regulation of uterine contractility in labor with elevated maternal BMI.

Indexed as

Body Mass IndexAdultCesarean SectionFemaleHumansIrelandLinear ModelsMyometriumPregnancyTissue Culture TechniquesUterine Contraction

Identifiers

PMID28125101
OpenAlexW2581732696

What OpenQuestion holds

Textmetadata
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.