Comparison of Chest Physical Therapy using Postural Drainage alone versus Postural Drainage combine with Early Ambulation on Tidal Volume in Ventilated Pneumonia Patients in Medical Intensive Care Unit
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Abstract
BACKGROUND: Patients with pneumonia on a tube ventilator in the medical intensive care unit wards require effective interventions to help wean them off ventilators more quickly. Preparing for ventilator weaning involves monitoring the tidal volume, which is one of the variables used to determine readiness for weaning. Receiving traditional chest physical therapy and early ambulation may yield different results regarding tidal volume.
OBJECTIVE: To study the comparative effects of chest physical therapy using postural drainage versus postural drainage combined with early ambulation on tidal volume in ventilated Pneumonia patients in medical ICUs.
METHODS: A quasi-experimental study collected data from 56 volunteer pneumonia patients using tube ventilation. The participants were divided into two groups: a control group receiving chest physical therapy (28 patients) and an experimental group receiving chest physiotherapy combined with early body movement (sitting for five minutes). Vital signs and tidal volume were observed for five minutes while lying down for five minutes post-intervention. Non-parametric statistics were used for analysis because of the small sample size and non-normal distribution. The Wilcoxon signed rank test for within-group comparison, and the Mann-Whitney U test were used to compare groups using SPSS version 27 with the statistical significance set at α=0.05.
RESULTS: The average tidal volume measurements before and after chest physiotherapy in the control group were 478.9±151.2 and 507.0±144.3, and in the experimental group, they were 494.3±209.5 and 625.1±237.9. The comparison showed a statistically significant difference (p<0.05) within the experimental group but not a significant difference between groups in the post-experiment.
CONCLUSION: Early body movement positively affects tidal volume in pneumonia patients on mechanical ventilation.
Thaiclinicaltrials.org number, TCTR20250311005
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