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Published in: BMC Anesthesiology 1/2023

Open Access 01-12-2023 | Heart Surgery | Research

Remote ischemic preconditioning and clinical outcomes after pediatric cardiac surgery: a systematic review and meta-analysis

Authors: Jianwen Li, Xiwen Wang, Wengui Liu, Shihong Wen, Xueping Li

Published in: BMC Anesthesiology | Issue 1/2023

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Abstract

Background

The benefit of remote ischemia preconditioning (RIPreC) in pediatric cardiac surgery is unclear. The objective of this systematic review and meta-analysis was to examine the effectiveness of RIPreC in reducing the duration of mechanical ventilation and intensive care unit (ICU) length of stay after pediatric cardiac surgery.

Methods

We searched PubMed, EMBASE and the Cochrane Library from inception to December 31, 2022. Randomized controlled trials comparing RIPreC versus control in children undergoing cardiac surgery were included. The risk of bias of included studies was assessed using the Risk of Bias 2 (RoB 2) tool. The outcomes of interest were postoperative duration of mechanical ventilation and ICU length of stay. We conducted random-effects meta-analysis to calculate weighted mean difference (WMD) with 95% confidence interval (CI) for the outcomes of interest. We performed sensitivity analysis to examine the influence of intraoperative propofol use.

Results

Thirteen trials enrolling 1,352 children were included. Meta-analyses of all trials showed that RIPreC did not reduce postoperative duration of mechanical ventilation (WMD -5.35 h, 95% CI -12.12–1.42) but reduced postoperative ICU length of stay (WMD -11.48 h, 95% CI -20.96– -2.01). When only trials using propofol-free anesthesia were included, both mechanical ventilation duration (WMD -2.16 h, 95% CI -3.87– -0.45) and ICU length of stay (WMD -7.41 h, 95% CI -14.77– -0.05) were reduced by RIPreC. The overall quality of evidence was moderate to low.

Conclusions

The effects of RIPreC on clinical outcomes after pediatric cardiac surgery were inconsistent, but both postoperative mechanical ventilation duration and ICU length of stay were reduced in the subgroup of children not exposed to propofol. These results suggested a possible interaction effect of propofol. More studies with adequate sample size and without intraoperative propofol use are needed to define the role of RIPreC in pediatric cardiac surgery.
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Metadata
Title
Remote ischemic preconditioning and clinical outcomes after pediatric cardiac surgery: a systematic review and meta-analysis
Authors
Jianwen Li
Xiwen Wang
Wengui Liu
Shihong Wen
Xueping Li
Publication date
01-12-2023
Publisher
BioMed Central
Published in
BMC Anesthesiology / Issue 1/2023
Electronic ISSN: 1471-2253
DOI
https://doi.org/10.1186/s12871-023-02064-6

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