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Korean Journal of Anesthesiology 1990;23(5):792-795.
DOI: https://doi.org/10.4097/kjae.1990.23.5.792   
Effects of Intrapulmonary Percussive Ventilation on Postoperative Atelectasis.
Jeong Jin Lee, Heon Geun Lee, Seong Deck Kim
Department of Anesthesiology, College of Medicine, Seoul National University, Seoul, Korea.
Abstract
Thirty-two male and twenty-five female pediatric patients who were diagnosed as postoperative pulmonary atelectasis were evaluated. The causes of postoperative atelectasis were secretion in the airway (94.7%) and aspiration (5.3%). The locations of postoperative atelectasis were right upper (54. 4%), left upper (19.3%), left lower (12.3%), right middle (8.7%) and right lower (5.3%) lobe in order. In thirty-three (57.9%) of the total 57 patients, atelectasis was occurred on the 2nd postoperative day. After application of intrapulmonary percussive ventilation (IPV) three times a day, more than half of the patients showed normal expanded lung and the majority of the patients except one were completely recovered in 6 days postparatively. Arterial blood gases were not significantly different before and after IPV, but alveolar-arterial oxygen tension difference (AaDO2) decreased from 160+/-16 mmHg before IPV to 114+/-16 mmHg after IPV.
Key Words: IPV; Postoperative atelectasis; Secretion


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