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  • Title: Effects of expiratory rib cage compression combined with endotracheal suctioning on gas exchange in mechanically ventilated rabbits with induced atelectasis.
    Author: Unoki T, Mizutani T, Toyooka H.
    Journal: Respir Care; 2004 Aug; 49(8):896-901. PubMed ID: 15271228.
    Abstract:
    INTRODUCTION: In Japan, expiratory rib cage compression (a chest physiotherapy technique) is frequently used with mechanically ventilated patients. It has not been determined whether rib cage compression combined with endotracheal suctioning improves oxygenation, ventilation, and mucus clearance. We evaluated the effects of rib cage compression with and without endotracheal suctioning on P(aO(2)), P(aCO(2)), dynamic compliance of the respiratory system (C(RS)), and mucus clearance in rabbits with induced atelectasis. METHODS: Anesthetized adult rabbits had an 18-gauge catheter placed into the airway, together with a tracheal tube via tracheostoma, and were mechanically ventilated. To create atelectasis, artificial mucus was infused into the airway via the catheter. Each rabbit was randomly assigned to one of 4 groups (= 7 in each): (1) control, (2) received endotracheal suctioning alone, (3) received rib cage compression alone, and (4) received both rib cage compression and endotracheal suctioning. After these interventions, for 30 min, each animal was placed supine without intervention for 120 min. RESULTS: In the groups that received rib cage compression, oxygenation, ventilation, and C.
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