确定死亡、持续性室性心动过速、纽约心功能分级增加到II或IV级等负性结果发生率为21%。

Adverse outcomes, defined as death, sustained ventricular tachycardia (VT), and increase in New York Heart Association functional class to grade II or IV, occurred in 21% of patients.

youdao

纽约心脏病学会心功能分级。

Classification of function capacity of the NYHA.

youdao