Evidence map›Paper›PMID 32309321›Full record

ArticleAnnals of translational medicine2020

Mean effective volume of local anesthetics by nerve conduction technique.

Junjie Luo, Guangyu Cai, Dandan Ling, Na Zhang, Xiaorui Chen, Xiaodan Cao, Bin Yu

Abstract read
In one paragraph

Article in Annals of translational medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

  1. Pooled it
  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.

Junjie LuoDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Guangyu CaiDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Dandan LingDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Na ZhangDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Xiaorui ChenDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Xiaodan CaoDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
Bin YuDepartment of Anesthesiology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to investigate whether nerve conduction could be used to objectively evaluate mean effective volume of 1.5% lidocaine after subparaneural or extraparaneural injection.

methodsTwenty patients undergoing unilateral foot or ankle surgery were randomized into either subparaneural or extraparaneural injection group, and ultrasound-guided continuous popliteal sciatic nerve block was performed. The action potential amplitude of the distal gastrocnemius muscle was monitored. The time of anesthesia onset and dosage of lidocaine were recorded when amplitude declined to 0.5 mV. The operative analgesic effect, score of numeric rating scales, patient's satisfaction, and movement or sensation were recorded during or after surgery.

resultsPreoperative dose of local anesthetics (10.7±1.6

conclusionsThe nerve conduction can be used to objectively evaluate the mean effective volume of 1.5% lidocaine in different injection groups, and subparaneural injection has more advantages as compared to extraparaneural injection for continuous popliteal sciatic nerve block.

Indexed as

lidocaineminimum effective volumeNerve blocknerve conduction assessmentsciatic nerve

Identifiers

PMID32309321
PMCPMC7154409

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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.