Results The total effective rate in improving premature beat and electrocardiogram in treatment group than in control group(P < 0.05).
结果治疗组的总有效率及对房性和室性早搏有效率以及心电图疗效均高于对照组（P<0。05）。
Objective Understand concerning item change on the Electrocardiogram(ECG) of patient with chronic Keshan disease, to provide valuable information of control and management for these patients.
目的了解慢型克山病病人在心电图上的有关项目改变，更好的为这类病人的防治管理提供有价值的信息。
Methods: We measured the maximum P-wave duration and P-dispersion from the 12-lead surface electrocardiogram of 40 patients with IPAF and 40 age-matched healthy control subjects.
方法：对确诊IPAF病例和年龄匹配的健康人各40例，测量体表心电图12导联最大P波时限及P波离散度。
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