MacGowan G A, Janosko K, Cecchetti A, Murali S
Division of Cardiology, University of Pittsburgh School of Medicine, Pennsylvania, USA.
Am J Cardiol. 1997 May 1;79(9):1264-6. doi: 10.1016/s0002-9149(97)00097-0.
This retrospective study of 104 New York Heart Association class 1 to 4 heart failure patients undergoing exercise stress testing with gas exchange analysis demonstrated that the ventilatory equivalent for carbon dioxide at anaerobic threshold is useful in determining prognosis in patients with severe congestive heart failure, particularly when used in combination with peak exercise oxygen consumption. A ventilatory equivalent for carbon dioxide >50 and peak oxygen consumption < or =15.0 ml/kg/min defines a very high-risk patient group who should be prioritized for transplantation.
这项对104例纽约心脏协会心功能1至4级且接受了运动负荷试验及气体交换分析的心力衰竭患者的回顾性研究表明，无氧阈时二氧化碳通气当量有助于判定重度充血性心力衰竭患者的预后，尤其是与运动峰值耗氧量联合使用时。二氧化碳通气当量>50且峰值耗氧量<或=15.0毫升/千克/分钟定义了一个极高风险患者组，该组患者应优先考虑进行移植。
