Objective To evaluate the value of BNP NT-pro level in the evaluation of cardiac function and prognosis of patients with AECOPD. Methods AECOPD patients treated in our hospital from June 2015 to June2016 were treated selected as the observation objects. According to BNP NT-pro level,they were divided into the high BNP NT-pro group and the normal BNP NT-pro group. The differences of lung function and heart function index between the two groups were observed,and the difference of prognosis were compared. Resu...