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目的研究塔克拉玛干“沙漠人”心电图左室高电压特点及其相关因素。方法对368例“沙漠人”(“沙漠人”组)和151例对照组进行静态心电图检查,相关数据采用χ2检验对率作趋势分析。结果 (1)左室高电压:“沙漠人”组为89例(24.2%),男性为63例(28.5%),女性26例(17.7%)。对照组为19例(12.6%),男性11例(14.5%),女性为8例(10.7%),2组差异有统计学意义(P<0.01),“沙漠人”组Sv1+Rv5明显高于对照组(P<0.01)。(2)“沙漠人”组高血压检出率明显低于对照组(P<0.01)。(3)“沙漠人”组左室高电压编码人中高血压检出率明显低于对照组左室高电压人中高血压检出率(P<0.01)。(4)左室后壁和室间隔的测定:“沙漠人”组左室高电压中仅1例有室间隔轻度增厚。结论 “沙漠人”心电图的左室高电压检出率较高,其QRS振幅高,时限狭窄,无ST段压低及T波倒置,与心律失常关系不密切。
Objective To study the left ventricular high voltage characteristics and its related factors in Taklimakan “desert people” electrocardiogram. Methods Static electrocardiogram (ECG) was performed in 368 desert people and desert controls, and the relative data were analyzed by Chi-square test. Results (1) Left ventricular high voltage: 89 cases (24.2%) were in the desert group, 63 cases (28.5%) were male and 26 cases (17.7%) were female. There were 19 cases (12.6%) in control group, 11 cases (14.5%) in male and 8 cases (10.7%) in female. There was significant difference between the two groups (P <0.01) Obviously higher than the control group (P <0.01). (2) The detection rate of hypertension in “Desert Man” group was significantly lower than that in the control group (P <0.01). (3) The detection rate of high blood pressure in left-ventricular high-voltage people in Desert people group was significantly lower than that in control group (P <0.01). (4) Determination of left ventricular posterior wall and interventricular septum: Only one case of left ventricular high voltage in “Desert people” group had slight ventricular septal thickening. Conclusion The detection rate of left ventricular high voltage in “Desert People” electrocardiogram is high, and its QRS amplitude is high, the time limit is narrow, there is no ST-segment depression and T wave inversion, which is not closely related to arrhythmia.