Kudriashev V E, Beletskiĭ Iu V, Kulagina T I, Zhurina G N, Borodina N I
Grud Serdechnososudistaia Khir. 1990(3):25-8.
A multistage treadmill test was conducted by the authors' program in 75 patients with mitral and aortic valvular disease and in 25 healthy individuals with noninvasive evaluation of the anaerobic threshold (AT) and the pumping function of the heart according to the dynamics of the oxygen debt. During the treadmill test in patients with pulmonary hypertension and arterio-capillary type of stasis in pulmonary circulation the AT occurred before the pumping function of the heart became decompensated. The diagnostic sensitivity of the AT outstripping appearance to marked types of pulmonary circulation stasis was 48% and to pulmonary hypertension - 80%. It was found that the AT occurring in the treadmill test before disorders of heart pumping function is an unfavourable prognostic criterion for late-term (8-12 months) results of isolated mitral valve prosthetics.
作者团队对75例二尖瓣和主动脉瓣疾病患者以及25名健康个体进行了多阶段跑步机测试，通过氧债动态对无氧阈值（AT）和心脏泵血功能进行无创评估。在患有肺动脉高压和肺循环中动静脉型淤血的患者进行跑步机测试期间，AT在心脏泵血功能失代偿之前出现。AT先于明显类型的肺循环淤血出现的诊断敏感性为48%，先于肺动脉高压出现的诊断敏感性为80%。研究发现，在跑步机测试中，心脏泵血功能出现紊乱之前发生的AT是单纯二尖瓣置换术晚期（8 - 12个月）结果的不良预后标准。
