Evidence map›Paper›PMID 40011811›Full record

SynthesisBMC anesthesiology2025

Intraoperative hypotension and postoperative risks in non-cardiac surgery: a meta-analysis.

Guanchao Qin, Ming-Cheng Du, Ke-Xin Yi, Yuan Gong

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMC anesthesiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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

  1. Pooled it
  2. Review
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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

4 authors.

Guanchao Qin *Institute of Anesthesiology and Critical Care Medicine, Three Gorges University & Yichang Central People's Hospital, 443000, Yichang, Hubei, People's Republic of China.
Ming-Cheng Du *Institute of Anesthesiology and Critical Care Medicine, Three Gorges University & Yichang Central People's Hospital, 443000, Yichang, Hubei, People's Republic of China.
Ke-Xin YiInstitute of Anesthesiology and Critical Care Medicine, Three Gorges University & Yichang Central People's Hospital, 443000, Yichang, Hubei, People's Republic of China.
Yuan GongInstitute of Anesthesiology and Critical Care Medicine, Three Gorges University & Yichang Central People's Hospital, 443000, Yichang, Hubei, People's Republic of China. gy-yc@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative complications are often associated with the severity and duration of intraoperative hypotension. However, the optimal approach for managing intraoperative hypotension remains controversial. The aim of this meta-analysis of randomized controlled trials was to compare the incidence of common postoperative complications with different treatment threshold of hypotension.

methodsWe searched PubMed, the Cochrane Database, and Embase from August 2014 to August 2024 for studies comparing different treatment threshold of hypotension (low [mean arterial pressure < 60 mmHg], moderate [60-75 mmHg], and high [> 75 mmHg]). Only randomized controlled trials conducted during 2014-2024 were included in this meta-analysis without language restrictions. Studies with the following characteristics were included: randomized controlled study; involved non-cardiac, non-obstetric surgery; included different blood pressure management strategies; evaluated major postoperative complications; and included acute kidney injury, myocardial injury, altered consciousness, or infection. Data included patient age, type of surgery, group criteria, and adverse events. Mantel-Haenszel method was used for analysis. The primary outcomes were postoperative complications, including acute kidney injury. The secondary outcomes included length of hospital stay and all-cause mortality.

resultsOf the 2160 studies identified, eight randomized controlled trials with 9108 participants were included. No significant differences in postoperative complications were observed between the moderate and high mean arterial pressure treatment threshold groups (risk ratio = 1.0, 95% confidence interval = 0.86-1.18, P = 0.96). Sensitivity analysis confirmed these findings. Length of hospitalization was not significantly different between the groups (standardized mean difference = -0.39; 95% confidence interval = -0.69 to 1.31; P = 0.03). Limited data prevented meta-analysis of mean arterial pressure management at lower treatment thresholds.

conclusionThe results of this meta-analysis suggest no significant differences in postoperative complications between moderate and high mean arterial pressure management.

Indexed as

HypotensionIntraoperative ComplicationsPostoperative ComplicationsSurgical Procedures, OperativeHumansLength of StayRandomized Controlled Trials as TopicIntraoperative hypotensionPostoperative complicationTarget management

Identifiers

PMID40011811
PMCPMC11863555

What OpenQuestion holds

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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.