Objective Use the actual heart rate in peak exercise/age-predicted maximum heart rate as one index of the chronotropic incompetence(CI),to access its value in the diagnosis of coronary heart disease(CHD).
目的以运动试验中实达心率与年龄预测心率的比值作为变时性的一项指标,探讨其对冠心病的诊断价值。
Objective To investigate the change of Chronotropic action and heart rate variability(HRV) in patients with essential hypertension(EH).
目的探讨原发性高血压(EH)患者变时性功能与心率变异性(HRV)的变化。
Methods Chronotropic action of the exercise test was detected in 68 who underwent performed coronary angiography(CA).
目的探讨运动试验中变时性功能检测对冠心病的诊断价值。
The chronotropic response to the adrenergic agonists ISO,E,NE was mainly testedin 32 isolated perfused turtle Trionyx sinensis hearts.
采用改良的八木氏插管法在３２个离体灌流的鳖心上，重点研究了对３种肾上腺素能受体激动剂的变时性反应。
Thenegative chronotropic response depended on timing of the stimulus burst within the car-dinc cycle.
结果心脏的负变时性反应取决于刺激猝发所在的心动周期时相。
Objective:To investigate the incidence of chronotropic incompetence(CI) in a cohort of sinus bradycardia and the value of CI between exercise test(ET) and Holter monitoring electrocardiogram(Holter).
心脏变时性功能不全的诊断标准:运动试验以运动后最大心率未达85%年龄预测心率,动态心电图以最大心率不超过100次/min。
PartⅠThe Evaluation of chronotropic response in a cohort of sinus bradycardia【Objective】To investigate the incidence of chronotropic incompetence (CI)in a cohort of sinus bradycardia and the value of exercise test(ET) and dynamic electrocardiogram(DCG)for diagnosis of CI.
心脏变时性功能不全的诊断标准:运动试验以运动后最大心率未达85%年龄预测心率,动态心电图以最大心率不超过100次/分。