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健康老年人QT间期离散度的检测及其相关因素分析探讨 被引量:2

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摘要 目的建立健康老年人12导联同步心电图QT间期离散度平均值及其相关因素分析。方法对1028例65~95(69.4±17.3)岁健康老年人,用SR-1000A心电综合自动分析仪采集12导联同步体表心电图数据,并录入软盘,专人在显示器上进行回放分析。增益放大1mV=20~40mm,纸速放大50~100mm/s。测量QTmax、QTmin,按Bazett公式校正QTcmax、QTcmin,计算QTd(QTmax-QTmin)及QTcd(QTcmax-QTcmin)。微机数理统计。结果QTmax、QTmin、QTcmax、QTcmin、QTd及QTcd平均值随增龄呈增大趋势,但在年龄组间及男女间差别无统计学意义。65~95岁QTmax平均值为399.39±32.93ms,QTmin为364.99±31.06ms,QTcmax为445.87±28.21ms,QTcmin为406.60±29.84ms,QTd为33.97±11.15ms,QTcd为38.14±12.84ms。结论健康老年人各年龄QTd为12~50ms,QTcd为13~60ms。QTd与心率、年龄及性别无明显相关性。
出处 《中国心血管病研究》 CAS 2005年第5期368-370,共3页 Chinese Journal of Cardiovascular Research
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参考文献17

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同被引文献12

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