Evidence map›Paper›PMID 33249566›Full record

Observational studyThe Australian & New Zealand journal of obstetrics & gynaecology2021

Increased maternal body mass index is associated with prolonged anaesthetic and surgical times for caesarean delivery but is partially offset by clinician seniority and established epidural analgesia.

Sue Lawrence, Eva Malacova, David Reutens, David J Sturgess

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in The Australian & New Zealand journal of obstetrics & gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

2 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. 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.

Sue LawrenceThe Centre for Advanced Imaging, University of Queensland, Brisbane, Queensland, Australia.ORCID 0000-0001-9798-631X
Eva MalacovaQIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
David ReutensThe Centre for Advanced Imaging, University of Queensland, Brisbane, Queensland, Australia.
David J SturgessMater Research Institute (MRI-UQ), Princess Alexandra Hospital, The University of Queensland, Brisbane, Queensland, Australia.
The University of Queensland · AUQIMR Berghofer Medical Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity is associated with higher surgical and anaesthetic morbidity and difficulties.

aimsWe aimed to investigate associations between maternal body mass index (BMI) and the in-theatre time taken to produce an anaesthetised state or to perform surgery for caesarean delivery. MATERIALS AND

methodsUsing the Strengthening the Reporting of Observational Studies in Epidemiology guidelines, we identified all women who underwent caesarean section at a single institution (2009-2015). The prospectively collected data arising from antenatal and peripartum care were analysed. Generalised linear regression was used to examine associations between maternal BMI and the time taken to anaesthetise the mother and the duration of surgery.

resultsOf a total of 24 761 caesarean deliveries, 5607 (22.7%) women were obese at antenatal registration. In-theatre anaesthetic preparation (18 vs 32 min, P < 0.001) and surgical duration (38 vs 52 min, P < 0.001) were longer in women with BMI ≥50 kg/m

conclusionsObese women had greater anaesthesia and surgery time, but the effect may potentially be mitigated by provision of care by experienced staff and prior establishment of epidural analgesia.

Indexed as

Analgesia, EpiduralAnesthesia, ObstetricalAnestheticsBody Mass IndexCesarean SectionFemaleHumansOperative TimePregnancyAnestheticsanaesthesiabody mass indexcaesarean sectionneuraxialobesityobstetric

Identifiers

PMID33249566
PMCPMC8247043
OpenAlexW3109271106

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.