Evidence map›Paper›PMID 40727531›Full record

ArticleFrontiers in medicine2025

Impact of temperature on EC

Alin Wang, Yunhao Shao, Yuling Zheng, Xiaoling Li, Bixin Huang, Ying Mai, Zhongqi Zhang

Abstract read
In one paragraph

Article in Frontiers in medicine, 2025. 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
–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.

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.

  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

7 authors.

Alin WangDepartment of Anesthesiology, Hospital of Foshan Women and Children, Foshan, China.
Yunhao ShaoDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.
Yuling ZhengDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.
Xiaoling LiDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.
Bixin HuangDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.
Ying MaiDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.
Zhongqi ZhangDepartment of Anesthesiology, The Affiliated Shunde Hospital of Jinan University, Foshan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: The efficacy of local anesthetics like ropivacaine in axillary brachial plexus blocks may be influenced by temperature, though its impact on the median effective concentration (EC Methods: Fifty-nine patients scheduled for upper limb surgery under ultrasound-guided brachial plexus block with ropivacaine were randomly divided into the RT group or BT group, with ropivacaine stored at 23°C for the RT group and 37°C for the BT group. The ropivacaine concentration for each subsequent patient was determined using the up-and-down method. If the sensory nerve block met surgical incision requirements within 30 min, it was classified as "Effective"; otherwise, it was classified as "Ineffective." For "Effective" cases, the ropivacaine concentration was reduced by 0.05% for the next patient, while for "Ineffective" cases, it was increased by 0.05%. The initial ropivacaine concentration was set at 0.5% for both groups. Probit regression analysis was then used to determine the EC Results: The EC Conclusion: Warming ropivacaine to 37°C reduces the EC Clinical trial registration: https://www.chictr.org.cn/showproj.html?proj=28438 Identifier, ChiCTR1800016721.

Indexed as

media effective concentrationnerve blockropivacainetemperatureup-and-down method

Identifiers

PMID40727531
PMCPMC12301301

What Socratic 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 Socratic graph.