Evidence map›Paper›PMID 35281318›Full record

Trial reportDrug design, development and therapy2022

Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia.

Jian-Xin Ni, Jia-Li Feng, Sheng-Jie Yao, Li-Feng Ni, Shao-Bo Song, Cong-Zhong Song, Xiao-Wei Qian, Zhong Mei, Jing Yu

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Drug design, development and therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07007650 (Effects of Different Concentrations of Ropivacaine on Prolonged Labor Analgesia), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.3field-weighted citation impact, top 12% 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.

NCT07007650 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Effects of Different Concentrations of Ropivacaine on Prolonged Labor Analgesia

TypeinterventionalSponsorChengdu Jinjiang Maternity and Child Health HospitalRan2025 to 2025Enrolled100ConditionsLabor Analgesia, Prolonged, Ropivacaine, ConcentrationArmsHigh-concentration Ropivacaine, Low concentration ropivacaine group
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Determination of Median Effective Concentration (ECDrug design, development and therapy · 2026
    Trial
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  5. Article
  6. Article
  7. EDFrontiers in pharmacology · 2023
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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

9 authors at 2 institutions in 1 country.

Jian-Xin NiDepartment of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Jia-Li FengDepartment of Obstetrics, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Sheng-Jie YaoDepartment of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Li-Feng NiDepartment of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Shao-Bo SongDepartment of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Cong-Zhong SongDepartment of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Xiao-Wei QianDepartment of Anesthesiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
Zhong Mei *Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.ORCID 0000-0003-1731-0593
Jing Yu *Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People's Republic of China.
Hangzhou Normal University · CNWomen's Hospital, School of Medicine, Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The safety and efficacy of dexmedetomidine for epidural labor analgesia have been reported in numerous literatures, but the optimal dose has not been fully determined. The objective of this study was to determine the dose-response relationship of epidural dexmedetomidine (combined with ropivacaine) for labor analgesia. Methods: A total of 120 full-term laboring parturients requesting epidural labor analgesia were enrolled in the study from July 5, 2020 to September 22, 2021. The parturients were randomly assigned to receive 0, 0.1, 0.2, 0.3, 0.4 or 0.5 μg/mL dexmedetomidine combined with 0.075% ropivacaine epidurally. An effective dose was defined as numerical rating scale (NRS) pain score ≤3 at 30-minutes of epidural drug injection. The dose-response relationship of dexmedetomidine (with ropivacaine) for epidural labor analgesia was performed using probit regression. The median effective dose (ED Results: The estimated values of ED Conclusion: The ED

Indexed as

Analgesia, ObstetricalDexmedetomidineRopivacaineAnalgesia, EpiduralAnalgesicsDose-Response Relationship, DrugDrug Therapy, CombinationFemaleHumansPregnancyAnalgesicsDexmedetomidineRopivacainedexmedetomidineED50ED95epidurallabor analgesiathe dose-response relationship

Identifiers

PMID35281318
PMCPMC8910462
OpenAlexW4221090613

What OpenQuestion holds

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LicenceCC BY-NC
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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.