Evidence map›Paper›PMID 42028303›Full record

Trial reportDrug design, development and therapy2026

The Optimal Effective Concentration of Spinal Anesthesia for Interlaminar Endoscopic Lumbar Discectomy: An Approach Based on the Biased Coin Design.

Long Zhang, Yu Zhang, Ping Li, Bingwei Hu, Guanyi Liu, Miao Zhu, Liyong Yuan, Yaqing Xu

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Drug design, development and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

8 authors.

Long Zhang *Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China.ORCID 0009-0000-1986-2178
Yu Zhang *Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China.
Ping LiDepartment of Anesthesiology, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China.ORCID 0009-0007-5051-464X
Bingwei HuDepartment of Anesthesiology, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang, People's Republic of China.ORCID 0000-0002-4484-5043
Guanyi LiuNingbo Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Ningbo, Zhejiang, People's Republic of China.ORCID 0009-0000-7626-7666
Miao ZhuDepartment of Anesthesiology, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China.ORCID 0009-0003-7636-7984
Liyong YuanDepartment of Anesthesiology, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China.ORCID 0009-0003-5666-8026
Yaqing XuDepartment of Anesthesiology, Ningbo No.6 Hospital, Ningbo, Zhejiang, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To determine the optimal spinal anesthesia concentration for interlaminar endoscopic lumbar discectomy (IELD), in order to deliver precise and individualized anesthesia for this procedure. Methods: Fifty-four patients scheduled for IELD were randomized via a biased coin design to receive spinal anesthesia with different ropivacaine doses. The initial dose was 7.5 mg/3 mL. If the patient reported a negative outcome, the subsequent dose was increased by 0.75 mg. If a positive outcome was reported, subsequent dose remained unchanged (89% probability) or was decreased by 0.75 mg (11% probability). At least 45 positive outcomes were needed to estimate the MEC Results: The isotonic regression estimated the MEC Conclusion: The MEC

Indexed as

Anesthesia, SpinalAnesthetics, LocalDiskectomyEndoscopyLumbar VertebraeAdultDose-Response Relationship, DrugFemaleHumansMaleMiddle AgedRopivacaineAnesthetics, LocalRopivacaineanesthesia success ratebiased coin designinterlaminar endoscopic lumbar discectomyoptimal effective concentrationspinal anesthesia

Identifiers

PMID42028303
PMCPMC13102108

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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.