Introduction:

mechanical power has been used as a predictor of outcomes in patients undergoing mechanical ventilation, however, inconsistencies exist in the literature.

Objective:

to evaluate the association of mechanical power with survival in patients with mechanical ventilation.

Design:

systematic review and meta-analysis.

Sources:

databases: Medline, Scopus, Clinical Trials, KoreaMed, Web of Science.

Study selection:

studies that included adults on mechanical ventilation and that reported mechanical power and mortality.

Data extraction:

of 128 studies found, six cohort studies were selected, and a secondary analysis of randomized controlled trials (n = 3,775) were selected. Low risk of bias was found in all studies. The median mechanical power cut-off value was 17 J/min.

Data synthesis:

it was found that low mechanical power is associated with greater survival in patients with mechanical ventilation (OR 0.45, 95% CI [0.34-0.59]; I2 56%).

Conclusions:

in adult patients on mechanical ventilation, low mechanical power was associated with greater survival.

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