Evidence map›Paper›PMID 39604861›Full record

Trial reportBMC anesthesiology2024

Association between thoracic epidural anesthesia and driving pressure in adult patients undergoing elective major upper abdominal surgery: a randomized controlled trial.

Xuan Li, Yi Yang, Qinyu Zhang, Yuyang Zhu, Wenxia Xu, Yufei Zhao, Yuan Liu, Wenqiang Xue, Peng Yan, Shuang Li and 2 more

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC anesthesiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Optimizing Ventilation Strategies to Reduce Pulmonary Complications in Frail Patients: A Comparative Study.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Observational
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

12 authors.

Xuan LiDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Yi YangDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Qinyu ZhangDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Yuyang ZhuDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Wenxia XuDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Yufei ZhaoDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Yuan LiuDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Wenqiang XueDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Peng YanDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Shuang LiDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Jie HuangDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China. ydyyhj@163.com.
Yu FangDepartment of anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China. fangyu@ydyy.cn.

Funding

Science and Technology Department of Yunnan Province project fund 202401AY070001-230
6 · The paper itself

Abstract

backgroundThoracic epidural anesthesia (TEA) is associated with a knowledge gap regarding its mechanisms in lung protection and reduction of postoperative pulmonary complications (PPCs). Driving pressure (ΔP), an alternative indicator of alveolar strain, is closely linked to reduced PPCs with lower ΔP values. We aim to investigate whether TEA contributes to lung protection by lowering ΔP during mechanical ventilation.

methodsIn this prospective, randomized, patient and evaluator-blinded parallel study, adult patients scheduled for elective major upper abdominal surgery were assigned to either the TEA group with combined thoracic epidural anesthesia and general anesthesia (TEA-GA) (n = 30) or the control group with only general anesthesia (GA) (n = 30). MEASUREMENTS: The primary outcome was the minimum ΔP determined based on positive end-expiratory pressure (PEEP) after intubation. Secondary outcomes included the incidence of PPCs within seven days, the minimum ΔP at various time points, blood gas analysis, intensive care unit (ICU) admission rates, length of hospital stay, and 30-day mortality rate.

resultsThe TEA group had a significantly lower minimum ΔP titrated based on PEEP compared to the control group (11.23 ± 2.19 cmH

conclusionCompared to GA, TEA-GA can reduce intraoperative ΔP in patients undergoing major upper abdominal surgery, especially those undergoing laparoscopic surgery. However, compared to GA combined with ΔP-guided ventilation, TEA-GA combined with ΔP-guided ventilation does not reduce the risk of PPCs. There was no significant difference in the total use of various vasoactive drugs between the two groups.

trial registrationThis study was registered in the Chinese Clinical Trial Registry (registration number ChiCTR2300068778 date of registration February 28, 2023).

Indexed as

AbdomenAnesthesia, EpiduralAnesthesia, GeneralPostoperative ComplicationsAgedElective Surgical ProceduresFemaleHumansLength of StayMaleMiddle AgedPositive-Pressure RespirationProspective StudiesDriving pressureLung-protective ventilationMajor upper abdominal surgeryPostoperative pulmonary complicationsThoracic epidural anesthesia

Identifiers

PMID39604861
PMCPMC11600644

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.