Daytime hypercapnia in adult patients with obstructive sleep apnea in China  

作　　者：Xiao-Na Wang Jin-Mei Luo Yi Xiao Dong-Mei Zhang Rong Huang 

机构地区：[1]Department of Respiratory and Critical Care Medicine,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730,China [2]Department of Respiratory and Critical Care Medicine,Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital,Capital Medical University,Beijing 100730,China

出　　处：《Chinese Medical Journal》2021年第18期2237-2239,共3页中华医学杂志（英文版）

基　　金：supported by grant from the National Key Technology Research and Development Project(No.2013BAI09B10)from the Ministry of Science and Technology of China.

摘　　要：To the Editor:Obstructive sleep apnea(OSA)is a common sleep-disordered breathing.Previous studies reported that the incidence of daytime hypercapnia in patients with OSA was 26.2%in China[1]and 14%in Japan.[2]However,Weitzenblum et al[3]demonstrated that daytime hypercapnia in patients with OSA might not be secondary to sleep apneas/hypopneas,but might due to the comorbidities,such as chronic obstructive pulmonary disease or severe obesity.Obesity hypoventilation syndrome(OHS)is defined as a conjunction of obesity(body mass index[BMI]≥30 kg/m^(2)),daytime hypercapnia(partial pressure of carbon dioxide in arterial blood[PaCO_(2)]≥45 mmHg)and sleep disordered breathing,after excluding other causes for alveolar hypoventilation.[4]Since patients with OHS were not completely excluded in previous studies,[1,2]we assumed that the incidence of daytime hypercapnia in Chinese patients with OSA might be low.

关 键 词：SLEEP PATIENTS OBSTRUCTIVE 

分 类 号：R766[医药卫生—耳鼻咽喉科]