冠心病患者T波电交替检测分析

目的 采用12导联高分辨率动态心电图(12-HR-HOLTER)对冠心病患者及非冠心病患者作12-HR-HOLTER记录并进行微伏级(uV)TWA时域及频域检测分析,探索12-HR-HOLTER的TWA检测方法和评价指标.方法 选择冠心病患者170例为Ⅰ组,其中男112例,女58例,平均年龄64.49±11.68岁,高...

T-Wave Alternans Test in patients with coronary heart disease

Objective To record the 12-lead high resolution HOLTER（12-HR-HOLTER） and test T-Wave Alternans（TWA） in time and frequency domain for the patients with and without coronary heart disease.Methods The 12-HR-HOLTER was recorded and TWA was tested in 170 patients with coronary heart disease（GroupⅠ,112 males,58 females,64.49±11.68 years old）,114 patients with hypertension（GroupⅡ,45 males,69 females,63.09±12.57 years old） and 67 cases without cardiovascular disease（GroupⅢ,30 males,37 females,61.37±9.59 years old）.Results ①The positive rate of TWA in Group I was significantly higher than that of GroupⅡand Group Ⅲ（16.47%,0.88%,1.49%,p〈0.01）;②TWA events（TWA-EVENT）,TWA persisting hours（TEA-HOUR） and TWA heart beats（TWA-BEAT） were used to detect and evaluate TWA;③TWA-EVENT of GroupⅠ was significantly more than that of GroupⅡand GroupⅢ（p〈0.01）;TWA-HOUR and TWA（TWA-BEAT were significantly more in GroupⅠthan that of GroupⅡand GroupⅢ（p〈0.01）.Conclusions ①Microvolt TWA could be tested by the methods of 12-HR-HOLTER recording and analyzing;②TWA is highly positive in patients with coronary heart disease;③TWA-EVENT,TWA-HOUR and TWA-BEAT could be used as the main indexes to test and evaluate TWA.