Klemenkov S V, Shul'man V A, Kusaev V V, Kostiuk F F
Ter Arkh. 1984;56(8):46-9.
Thirty-four normal subjects, 30 patients with sinoatrial node weakness (SANW), and 129 patients with coronary heart disease (CHD) without the signs of sinoatrial node involvement were examined. The work fitness was studied with the aid of indirect estimates (PWC 170, maximal oxygen consumption per kg bw, double product), spiroergometry (oxygen pulse, rest quotient) and central hemodynamic data (cardiac and stroke indices). The work fitness in SANW patients was low, depending on the disease etiology and chronotropic reserves of the heart. PWC 170, maximal oxygen consumption per kg bw, oxygen pulse were found to overestimate the genuine level of the SANW patients' physical status. In view of this fact these estimates cannot be used for its evaluation. It is inferred that the power of the threshold loading, the rest quotient, the cardiac index, and double product adequately reflect the work fitness of SANW patients.
对34名正常受试者、30名窦房结功能不全（SANW）患者以及129名无窦房结受累迹象的冠心病（CHD）患者进行了检查。借助间接评估（PWC 170、每千克体重最大耗氧量、双乘积）、运动心肺功能测试（氧脉搏、呼吸商）以及中心血流动力学数据（心指数和每搏输出量指数）对工作适应性进行了研究。SANW患者的工作适应性较低，这取决于疾病病因和心脏变时储备。发现PWC 170、每千克体重最大耗氧量、氧脉搏高估了SANW患者的真实身体状况水平。鉴于这一事实，这些评估不能用于对其进行评价。据推断，阈负荷功率、呼吸商、心指数和双乘积能充分反映SANW患者的工作适应性。
