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使用国产前置放大墨和 A/D,D/A 转换卡和 Dator-852程序,按 Langner 方法记录分析59例病毒性心肌炎患者的高频心电图,并与60例正常人比较。患者组 QRS 波群6个导联切迹总数超过3个者38例(64.4%),明显高于对照组(4例,6%:P<0.01);患者组 QRS 最高频率均值63.2Hz,明显高于对照组(42.1Hz;P<0.01)。从20到100Hz 频率段进行分段频率比较,患者组从40至100Hz 段的频率百分比较对照组增加5-7%。这些改变对诊断心肌炎患者心肌缺血有重要意义.
Fifty-nine patients with viral myocarditis were recorded by Langner method and compared with 60 normal subjects using domestic preamplification ink and A / D, D / A conversion card and Dator-852 program. In QRS complex, 38 cases (64.4%) with more than 3 leads were significantly higher than those in control group (4 cases, 6%, P <0.01). The highest QRS peak frequency was 63.2 Hz in patients with QRS complex Higher than the control group (42.1 Hz; P <0.01). Comparing segment frequencies from 20 to 100 Hz, the frequency of patients in the segment from 40 to 100 Hz increased by 5-7% over the control. These changes have important implications for the diagnosis of myocardial ischemia in patients with myocarditis.