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房性心律失常对自主神经功能的影响

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摘要 目的探讨房性心律失常对自主神经功能的影响。方法选择47例(病例组)房性心律失常患者及60例(对照组)非房性心律失常患者,分别监测24h动态心电图,得出P波最大时限(Pmax)、P波离散度(Pd)、心率变异指数(HRVI)、24h内全部正常窦性R—R间期标准差(SDNN)及24h平均心室率,并进行对比分析。分别以P>max110ms、Pd〉40ms、HRVI〈25、SDNN≤100ms作为判定房性心律失常的阳性预测指标,比较两组患者上述各项指标的阳性率。结果病例组Pmax、Pd及24h平均心室率显著高于对照组[(109.40±8.25)ms比(93.36±9.45)ms,(42.76±6.14)ms比(34.20±6.38)ms,(89.29±24.62)次/min比(73.86±14.60)次/min],HRVI、SDNN显著低于对照组[35.16±14.93比39.77±16.0l,(98.79±26.87)ms比(123.37±22.14)ms],差异均有统计学意义(P〈0.01)。病例组Pmax〉110ms、Pd〉40ms、Pmax〉110ms+Pd〉40ms、HRVl〈25、SDNN≤100ms的阳性率均高于对照组(P〈0.01)。结论房性心律失常患者心脏自主神经有明显的功能紊乱。
作者 汪宏
出处 《中国医师进修杂志》 2011年第31期41-42,共2页 Chinese Journal of Postgraduates of Medicine
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