Hypotheses: 1. Postoperative oxygen therapy significantly improves postoperative oxygenation in OSA surgical patients. 2. Postoperative oxygen therapy do not significantly increase the number of apnea episodes and the duration of apnea episodes. 3. Postoperative oxygen therapy do not significantly increase arterial carbon dioxide(CO2) level in OSA surgical patients.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Pulse oxygen saturation
Timeframe: 3 nights postoperatively
Sleep disordered breathing
Timeframe: Postoperative night 3 only
Blood CO2 level
Timeframe: postoperative night1 to noght 3