However, the before and after studies showed a decreasing trend of ICU length of stay in patients whose care teams followed a weaning protocol, but no significant difference between the two groups (MD, –3.24 days; 95% CI, –6.52 to –0.77; P=0.05).
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Liberation from mechanical ventilation in critically ill patients: Korean Society of Critical Care Medicine Clinical Practice Guidelines.
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In addition, patients in the RCTs who received PSV showed a trend toward lower hospital and ICU mortality, but the differences were not statistically significant (RR, 0.97; 95% CI, 0.69–1.37; P=0.86 and RR, 0.86; 95% CI, 0.64–1.11; P=0.85, respectively).