早搏联律间期缩短对血流动力学的影响  

The effect of hemodynamics on coupling interval of premature beat

作　　者：邢适颖[1] 李中健[1] 王利亚[1] 吕聪敏[1] 李世锋[1] 

机构地区：[1]郑州大学第二附属医院心电图室,郑州450014

出　　处：《中原医刊》2007年第7期9-11,共3页Central Plains Medical Journal

摘　　要：目的研究房性、室性早搏联律间期缩短与桡动脉图的关系,探讨早搏对血流动力学的影响。方法经心电图诊断为房性早搏48例及室性早搏51例,再应用心功能仪检查,通过信号处理技术对早搏桡动脉图形进行面积积分。结果①早搏桡动脉图积分面积提前率〉40%时最小,20%-40%时居中,〈20%时最大（P〈0.05）。②提前率相同情况下,左房与右房的早搏桡动脉图积分面积比较差异无统计学意义（P〉0.05）;左室与右室的早搏桡动脉图积分面积比较差异有统计学意义（P〈0.05）。③早搏时的桡动脉图积分面积最小,早搏前第一个窦性心搏居中,早搏后第一个窦性心搏最大（P〈0.05）。结论早搏对血流动力学的影响主要与早搏的联律间期长短有关,室性早搏还与其发生部位有关,早搏的代偿间歇,不能改善对血流动力学的影响。Objective To study the relationship between the coupling interval of premature beat （PB） and pulsography,and explore the effect of PB on the hemodynamics. Methods Forty -eighy patients with artrial premature beat （APB） and 51 patients with ventricular premature beat （VPB） were detected by twelve -lead surface electrocardiograms. Cardiac function was investigated through cardiac function check apparatus. The pulsographic areas were measured by signal processing technique. Results ①The pulsographic areas of PB were smallest when advanced ratios were 〉40% ,which were middle when the ratios were between 20% -40%, and largest when the ratios were 〈 20% （ P 〈 0.05 ）.②When advanced ratios were same, there was a negative correlation between left and right artrial of pulsographic areas （ P 〈 0.05 ） ; and a positive correlation between left and right ventricular （ P 〈 0.05）. ③The pulsography areas of PB were smallest,which were middle when the first sinus beats before PB was appeared, and largest when the first sinus beat after PB was present （ P 〈 0.05）. Conclusion There is positive correlation of the coupling interval of PB on hemodynamics, and the sites of VPB also is. Although PBs have compensatory intervals, the compensation is not complete to stroke volume.

关 键 词：房性早搏 室性早搏 联律间期 桡动脉图 血流动力学 

分 类 号：R654.2[医药卫生—外科学]