Carstens V, Behrenbeck D W, Hilger H H
Cardiology. 1983;70(1):41-9. doi: 10.1159/000173568.
Exercise stress testing and right-heart catheterization were carried out in 131 patients before and 6 months after cardiac valve surgery. The exercise capacity increased only a little in patients with mitral or double-valve surgery. In contrast, most patients with an aortic valve replacement had good exercise performance after surgery. Corresponding to the reduced exercise capacity most of the patients also had disturbed hemodynamics after surgery, with an elevated mean pulmonary artery pressure at rest, that raised inappropriately during exercise, and a diminished cardiac output at rest, that failed to increase during exercise, in relation to oxygen uptake.
对131例患者在心脏瓣膜手术前及术后6个月进行了运动负荷试验和右心导管检查。二尖瓣或双瓣膜手术患者的运动能力仅稍有增加。相比之下，大多数接受主动脉瓣置换术的患者术后运动表现良好。与运动能力下降相对应，大多数患者术后还存在血流动力学紊乱，静息时平均肺动脉压升高，运动时升高异常，静息时心输出量减少，运动时未能随摄氧量增加。
