肥胖低通气综合征麻醉

A Review of Epidemiology, Pathophysiology, and Perioperative Considerations 几张图片几个概念睡眠呼吸暂停综合症上气道阻力综合症单纯性鼾症正常人 OSAHS 单纯性鼾症:夜间可出现不同程度鼾症, AHI<5 次/h,白天无症状。上气道阻力综合征:夜间可出现不同频度、程度鼾症,虽上气道阻力增高,但 AHI<5 次/h,白天嗜睡或疲劳,试验性无创通气治疗有效。OSAHS :睡眠时上气道塌陷阻塞引起的呼吸暂停和通气不足、伴有打鼾、睡眠结构紊乱,频繁发生血氧饱和度下降、白天嗜睡等病症。AHI: 睡眠时患者平均每小时发生的呼吸暂停( >10s) 以及低通气次数。用于评价患者 OSAHS 严重程度和治疗效果的最重要指标。几个概念 Introduction Obesity hypoventilation syndrome (OHS) :  Obesity  Daytime hypoventilation  Sleep-disordered breathing  Without an alternative neuromuscular, mechanical, or metabolic cause of hypoventilation Introduction Therapy Objective  To examine the prevalence of OHS;  Review the current data on disease mechanisms, screening, and treatment;  Discuss the optimal perioperative management of OHS. Materials and Methods