Published online May 6, 2023. doi: 10.12998/wjcc.v11.i13.2981
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
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.
Decreasing pulmonary complications can lead to shorter hospital stays. This in turn could decrease costs for the patient and the hospital.
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.
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.
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.
Preoperative IMT may decrease the duration of postoperative hospitalization for patients undergoing cardiac surgery.
More high-quality studies are needed to confirm our conclusion.