• Wei Cheng, Xu-Dong Ma, Long-Xiang Su, Huai-Wu He, Lu Wang, Bo Tang, Wei Du, Yuan-Kai Zhou, Hao Wang, Na Cui, Yun Long, Da-Wei Liu, Yan-Hong Guo, Ye Wang, Guang-Liang Shan, Xiang Zhou, Shu-Yang Zhang, and Yu-Pei Zhao.
• Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 1 Shuaifuyuan, Dongcheng District, Beijing, China.
• Crit Care. 2020 Sep 11; 24 (1): 554.

BackgroundTo investigate the epidemiology and in-hospital mortality of veno-venous (VV) and veno-arterial (VA) extracorporeal membrane oxygenation (ECMO) in Mainland China throughout 2018.MethodsPatients supported by ECMO from 1700 tertiary hospitals in 31 provinces from January 1 to December 31, 2018, were selected from the National Clinical Improvement System database.ResultsThe 1700 included hospitals had 2073 cases of ECMO in 2018, including 714 VV and 1359 VA ECMOs. The average patient age was 50 years (IQR 31-63), and 1346 were male. The average hospital stay was 17 days (IQR 7-30), and the average costs per case was $36,334 (IQR 22,547-56,714). The three provinces with the highest number of ECMO cases were Guangdong, Beijing, and Zhejiang; the southeast coastal areas and regions with higher GDP levels had more cases. Overall in-hospital mortality was 29.6%. Mortality was higher among patients who were male, over 70 years old, living in underdeveloped areas, and who were treated during the summer. Mortality in provinces with more ECMO cases was relatively low. The co-existence of congenital malformations, blood system abnormalities, or nervous system abnormalities increased in-hospital mortality.ConclusionsMortality and medical expenses of ECMO among patients in China were relatively low, but large regional and seasonal differences were present. Risk factors for higher in-hospital mortality were older age, male sex, in underdeveloped areas, and treatment during the summer. Additionally, congenital malformations and blood system and nervous system abnormalities were associated with in-hospital mortality.

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