Meta-Analysis
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. May 6, 2023; 11(13): 2981-2991
Published online May 6, 2023. doi: 10.12998/wjcc.v11.i13.2981
Effect of preoperative inspiratory muscle training on postoperative outcomes in patients undergoing cardiac surgery: A systematic review and meta-analysis
Jing Wang, Yu-Qiang Wang, Jun Shi, Peng-Ming Yu, Ying-Qiang Guo
Jing Wang, Yu-Qiang Wang, Jun Shi, Ying-Qiang Guo, Department of Cardiovascular Surgery, Sichuan University West China Hospital, Chengdu 610041, Sichuan Province, China
Peng-Ming Yu, Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
Author contributions: Wang J and Yu PM designed the study; Wang J and Wang YQ searched the literature and extracted the data; Shi J contributed to data verification; Wang J, Yu PM, and Wang YQ analyzed the data; Wang J, Wang YQ, Shi J, Yu PM, and Guo YQ interpreted the data; Wang J drafted the manuscript; Wang YQ, Shi J, Yu PM, and Guo YQ critically reviewed the manuscript; Guo YQ had full access to all the data and carries responsibility for the decision to submit it for publication; all authors read and approved the final manuscript.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest to report.
PRISMA 2009 Checklist statement: We performed this systematic review and meta-analysis according to the preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines. Meanwhile, it has been registered with PROSPERO (ID: CRD42022333441).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ying-Qiang Guo, MD, PhD, Chief Doctor, Doctor, Surgeon, Department of Cardiovascular Surgery, Sichuan University West China Hospital, No. 37 Guoxue Lane, Wuhou District, Chengdu 610041, Sichuan Province, China. drguoyq@wchscu.cn
Received: November 12, 2022
Peer-review started: November 12, 2022
First decision: January 30, 2023
Revised: February 10, 2023
Accepted: March 31, 2023
Article in press: March 31, 2023
Published online: May 6, 2023
ARTICLE HIGHLIGHTS
Research background

The effect of preoperative inspiratory muscle training (IMT) on mechanical ventilation time, length of intensive care unit stay, and duration of postoperative hospitalization after cardiac surgery are unknown.

Research motivation

Decreasing pulmonary complications can lead to shorter hospital stays. This in turn could decrease costs for the patient and the hospital.

Research objectives

To evaluate whether preoperative IMT is effective in improving postoperative outcomes such as the mechanical ventilation time, length of intensive care unit stay, and duration of postoperative hospitalization in patients receiving cardiac surgery.

Research methods

Several databases were searched to obtain eligible randomized controlled trials. Outcomes were mechanical ventilation time, length of intensive care unit stay, and duration of postoperative hospitalization.

Research results

The pooled mean difference of -0.45 h [(95%CI): -1.59-0.69] showed no statistically significant effect on mechanical ventilation time. The pooled mean difference 0.44 h (95%CI: -0.58-1.45) showed no statistically significant effect on length of intensive care unit stay. The pooled mean difference showed -1.77 d [95%CI: -2.41-(-1.12)] for postoperative hospitalization.

Research conclusions

Preoperative IMT may decrease the duration of postoperative hospitalization for patients undergoing cardiac surgery.

Research perspectives

More high-quality studies are needed to confirm our conclusion.