Objective To observe the effect of Monoitrate by intravenous drip infusion and Nifedipine by oral small doses on senile pulmonary heart disease and heart failure.

• 摘要目的观察静滴单硝酸异山梨酯和口服小剂量硝苯地平联合治疗老年肺源性心脏病（肺心病）心力衰竭（心衰）的疗效。