Evidence map›Paper›PMID 37071650›Full record

ArticlePloS one2023

Acute pain and analgesic requirement after vaginal childbirth with and without neuraxial labor analgesia-Retrospective cohort study.

Ayumi Maeda, Gen Shimada, Nobuko Fujita, Rimu Suzuki, Michiko Yamanaka, Osamu Takahashi, Tokujiro Uchida, Yasuko Nagasaka

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. 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
1.0field-weighted citation impact, top 26% 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, 3 citations in OpenAlex.

  1. Article
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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

8 authors at 5 institutions in 2 countries.

Ayumi MaedaDepartment of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America.ORCID 0000-0002-6919-6465
Gen ShimadaDepartment of General Surgery, Hernia Center, St. Luke's International Hospital, Tokyo, Japan.ORCID 0000-0002-7089-229X
Nobuko FujitaDepartment of Anesthesia, St. Luke's International Hospital, Tokyo, Japan.
Rimu SuzukiDepartment of Anesthesia, St. Luke's International Hospital, Tokyo, Japan.
Michiko YamanakaDepartment of Integrated Women's Health, Center for Medical Genetics, St. Luke's International Hospital, Tokyo, Japan.
Osamu TakahashiGraduate School of Public Health, St. Luke's International University, Tokyo, Japan.
Tokujiro UchidaDepartment of Anesthesiology, Tokyo Medical and Dental University, Tokyo, Japan.ORCID 0000-0002-9474-0020
Yasuko NagasakaDepartment of Anesthesia, Tokyo Women's Medical University, Tokyo, Japan.ORCID 0000-0002-6259-3388
St. Luke's International Hospital · JPBrigham and Women's Hospital · USSt. Luke's International University · JPTokyo Medical and Dental University · JPTokyo Women's Medical University · JP

Funding

The Harvard Clinical and Translational Science CenterUL1TR002541 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2018 to 2022
$93.0M
NCATS NIH HHS UL1 TR002541
6 · The paper itself

Abstract

backgroundFew data are available on the intensity of pain that women experience during the first five days after vaginal childbirth. Moreover, it is unknown if the use of neuraxial labor analgesia has any impact on the level of postpartum pain.

methodsWe performed a retrospective cohort study based on chart review of all women who delivered vaginally at an urban teaching hospital between April 2017 and April 2019. The primary outcome was the area under the curve of pain score on numeric rating scale (NRS) documented in electronic medical records for five days postpartum (NRS-AUC5days). Secondary outcomes included peak NRS score, doses of oral and intravenous analgesics consumed during the first five days postpartum, and relevant obstetric outcomes. Logistic regression was used to examine the associations between the use of neuraxial labor analgesia and pain-related outcomes adjusting for potential confounders.

resultsDuring the study period, 778 women (38.6%) underwent vaginal delivery with neuraxial analgesia and 1240 women (61.4%) delivered without neuraxial analgesia. Median (Interquartile range) of NRS-AUC5days was 0.17 (0.12-0.24) among women who received neuraxial analgesia and 0.13 (0.08-0.19) among women who did not (p<0.001). Women who received neuraxial analgesia were more likely to require the first- and second-line analgesics postpartum than women who did not: diclofenac (87.9% vs. 73.0%, p< 0.001, respectively); acetaminophen (40.7% vs. 21.0%, p< 0.001, respectively). The use of neuraxial labor analgesia was independently associated with increased odds of having NRS-AUC5days in the highest 20 percentile (adjusted odds ratio [aOR] 2.03; 95% confidence interval [CI] 1.55-2.65), having peak NRS ≥ 4 (aOR 1.54; 95% CI 1.25-1.91) and developing hemorrhoids during the postpartum hospitalization (aOR 2.13; 95% CI 1.41-3.21) after adjusting for relevant confounders.

conclusionAlthough women who used neuraxial labor analgesia had slightly higher pain scores and increased analgesic requirement during postpartum hospitalization, pain after vaginal childbirth was overall mild. The small elevation in the pain burden in neuraxial group does not seem to be clinically relevant and should not influence women's choice to receive labor analgesia.

Indexed as

Acute PainAnalgesiaAnalgesia, EpiduralAnalgesia, ObstetricalLabor PainAnalgesicsDelivery, ObstetricFemaleHumansPregnancyRetrospective StudiesAnalgesics

Identifiers

PMID37071650
PMCPMC10112800
OpenAlexW4366234611

What OpenQuestion holds

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LicenceCC BY
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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.