Evidence map›Paper›PMID 39488417›Full record

Trial reportBMJ open2024

Esketamine administered epidurally as an adjuvant to epidural ropivacaine for labour analgesia: a prospective, double-blind dose-response study.

Lili Xu, Shuxi Li, Chenghong Zhang, Yanhong Zhou, Xinzhong Chen

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07145775 (Dexmedetomidine-esketamine-ropivacaine Versus Sufentanil-ropivacaine Combination for Epidural Labor Analgesia and Neonatal Outcomes), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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.

NCT07145775 phase4completednot on this mapstarted 2025, after this paper: background citation

Dexmedetomidine-esketamine-ropivacaine Versus Sufentanil-ropivacaine Combination for Epidural Labor Analgesia and Neonatal Outcomes: a Pilot Randomized Trial

TypeinterventionalSponsorPeking University First HospitalRan2025 to 2026Enrolled300ConditionsEpidural Analgesia, Labor Pain, Sufentanil, DexmedetomidineArmssufentanil-ropivacaine combination, dexmedetomidine-esketamine-ropivacaine combination 1, dexmedetomidine-esketamine-ropivacaine combination 2
3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Trial
  2. Article
  3. 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

5 authors.

Lili XuDepartment of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
Shuxi LiDepartment of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
Chenghong ZhangDepartment of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
Yanhong ZhouDepartment of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
Xinzhong ChenDepartment of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China chenxinz@zju.edu.cn.ORCID 0000-0001-9219-1681

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the efficacy of esketamine as an adjuvant to epidural ropivacaine for labour analgesia by determining its effect on the median effective concentration (EC

designA prospective, double-blind dose-response study.

settingThis study was conducted in Women's Hospital, School of Medicine, Zhejiang University, China.

participantsOne hundred and fifty parturients who requested epidural analgesia were recruited in this study to randomly receive epidural ropivacaine alone or with esketamine of 0.2 mg ml PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome, EC

resultsThe EC

conclusionsUnder the conditions of this study, the addition of epidural esketamine of 0.3 mg⋅mL TRIAL REGISTRATION NUMBER: ChiCTR2100054348.

Indexed as

Analgesia, EpiduralAnalgesia, ObstetricalAnesthetics, LocalDose-Response Relationship, DrugKetamineRopivacaineAdultCesarean SectionChinaDouble-Blind MethodFemaleHumansLabor PainPregnancyProspective StudiesAnesthetics, LocalEsketamineKetamineRopivacaineAnaesthesia in obstetricsObstetricsPain management

Identifiers

PMID39488417
PMCPMC11535680

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Registered trials

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.