活动平板试验诊断心脏植物神经功能紊乱的临床意义

目的探讨活动平板试验诊断心脏植物神经功能紊乱的临床意义。方法对40例确诊为心脏植物神经功能紊乱的患者行活动平板试验，分析心电图（ECG）的ST段下移、T波改变及计算心率变时反应指数（CRI），并与冠心病组（CHD）及正常对照组比较。结果40例心脏植物神经功能紊乱患者活动平板试验中CRI>1.3人数居多，平均CRI=1.41±0.05，明显高于正常对照组与CHD组（P<0.001）;心电图的ST段下移平均为（0.12±0.04）mV高于正常对照组（P<0.05）,与CHD组比较,差异无统计学意义(P>0.05)。结论心脏植物神经功能紊乱患者心率变时反应指数普遍增高，可能与心脏植物神经功能紊乱有关。CRI>1.3可作为诊断心脏植物神经功能紊乱的参考值。

The treadmill exercise test in diagnosis of cardiac neurosis

Objective To investigate the clinical significance of the chronctropic response index(CRI) during the treadmill exercise test in patients with cardiac neurosis. Methods40 patients who had been diagnosed cardiac neurosis received the treadmill test. Based on the test results, decrease of the ST segment, changes of the T wave and CRI were compared between the test group, the coronary heart disease (CHD) group and the control group. ResultsDuring the Treadmill test, the average CRI of 40 patients with cardiac neurosis was 1.41±0.05, which was obviously higher than that of the CHD and control groups（P<0.001）. In the test group, the ST segment was decreased by 0.12±0.04mV, which had no statistical differences from the CHD group but had a significant difference from the control group. Conclusion CRI in the cardiac neurosis group is significantly increased, and CRI＞1.3 conld be of significant value in diagnosis of cardiac neurosis.