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Korean J Crit Care Med > Volume 26(4); 2011 > Article
Korean Journal of Critical Care Medicine 2011;26(4): 256-260. doi: https://doi.org/10.4266/kjccm.2011.26.4.256
High-frequency Chest Wall Oscillation Therapy: Clinical Effectiveness in the Patients with Pulmonary Contusion
Dae Sup Lee, Sung Wook Park, Suk Ran Yeom, Sang Kyoon Han, Sung Hwa Lee, Ji Ho Ryu
1Department of Emergency Medicine, Pusan National University Hospital, Busan, Korea. psu52156@naver.com
2Department of Emergency Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea.
ABSTRACT
BACKGROUND: Pulmonary contusion is the most common pulmonary parenchymal injury in blunt chest trauma and may constitute a life-threatening thoracic injury. In this study, we evaluated the usefulness of high-frequency chest wall oscillation (HFCWO) therapy in patients with pulmonary contusion. METHODS: Patients with lung contusion either received HFCWO therapy using the Vest system (Vest group; n = 18) or received conventional chest physiotherapy (non-Vest group; n = 23). The physiological parameters of the patients, length of stay in hospital and ICU, and the duration of mechanical ventilation were compared between the two groups. Variables, including pulmonary contusion score, percentage of patients receiving mechanical ventilation therapy, and PaO2/FiO2 ratio, were also analyzed. RESULTS: The pulmonary contusion score was higher in the Vest group (p < 0.01), and mechanical ventilation was used more frequently in the Vest group (p = 0.027). Improvement in the PaO2/FiO2 ratio over the first 48 h did not differ between the Vest and Non-Vest groups. No significant differences in the physiological parameters, hospital and ICU stays, and duration of mechanical ventilation were observed between the two groups. CONCLUSIONS: The therapeutic effect of the Vest system in patients with pulmonary contusion was similar to that of conventional chest physiotherapy. Therefore, the Vest system could be considered as an airway clearance technique in the management of patients with pulmonary contusion.
Key Words: chest wall oscillations; lung injury; physical therapy
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