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采用动态心电图观察分析41例窦性早搏的昼夜变化。结果心脏病组和非心脏病组均以日间型为多。室早的昼夜变化与基础心率无明显关系。夜间室早的严重度冠心组减少与增加的例数接近,其它心脏病组增加例数大于减少例数,二组减少多为3度→2度;无心脏病组减少多为2度→1度,病例数则显著增多。认为室早的昼夜变化除受交感或副交感神经的张力影响外,还可能与心肌负荷变化、心脏病变原因和受损程度有关。
The changes of diurnal changes of 41 cases of sinus premature beats were analyzed by dynamic electrocardiogram. Results There were more daytime type in heart disease group and non-heart disease group. Room early diurnal changes and basal heart rate had no significant relationship. In the nocturnal group, the reduction of coronary heart disease group was similar with the increase of the coronary heart disease group. The increase of other cardiac disease group was larger than the reduction of the number of cases, the reduction of the second group was mostly 3 degrees → 2 degrees; the reduction of the non-heart disease group was mostly 2 degrees → 1 Degree, the number of cases was significantly increased. In addition to the influence of sympathetic or parasympathetic tone, it may be related to changes in myocardial load, the cause of heart disease and the degree of damage.