Klemenkov S V, Shul'man V A, Kusaev V V, Savchenko E A
Vrach Delo. 1991 Jun(6):31-3.
A study is presented of 80 patients with ischemic heart disease (IHD): 37 patients with a low reaction of the cardiac rhythm to physical load--chronotropic insufficiency (CHI) and 43 patients with an adequate reaction of the cardiac rhythm to loads. Physical working capacity was evaluated by the strength of threshold load, pulsepressure double product, rest quotient, oxygen pulse, oxygen consumption per 1 kgm of work. Interval between the 1 and 2 examination--6.5 years. It was shown that CHI in IHD does not influence the prognosis of the disease and does not reflect the grade of its severity. They are, however, the marker of involvement of the atria. Chronic insufficiency in ischemic heart disease makes it difficult to objectively evaluate the physical working capacity.
对80例缺血性心脏病（IHD）患者进行了一项研究：37例患者对体力负荷时心律反应低下——变时性功能不全（CHI），43例患者对负荷时心律反应正常。通过阈负荷强度、脉压乘积、静息商、氧脉搏、每1千克米工作的耗氧量来评估体力工作能力。第1次和第2次检查的间隔时间为6.5年。结果表明，IHD中的CHI不影响疾病预后，也不反映其严重程度分级。然而，它们是心房受累的标志。缺血性心脏病中的慢性功能不全使得客观评估体力工作能力变得困难。
