目的：研究一种新的导管法测定肺循环血流量。
Objective: to study a new catheter method to measure blood flow of the pulmonary circuit.
观察体肺循环血流动力学、冠状动脉血流量、心肌氧代谢及心肌静脉血乳酸、腺苷及内皮素浓度变化。
Then the cardiopulmonary hemodynamics, coronary flow, myocardial oxygen metabolism, and the concentrations of lactic acid, adenosine and endothelin of myocardial venous blood were measured.
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