基于脉搏波分析获取的心内膜下心肌活力率相关影响因素探究

Study on the influencing factors of subendocardial viability ratio based on pulse wave analysis

目的探究脉搏波分析获取的心内膜下心肌活力率(SEVR)相关影响因素。方法对592例体检人群进行身高、体质量、血压的测量,采集空腹静脉血分析血糖、血脂等生化指标,采用中科院心功能仪器采集脉搏波压力波形,获得舒张期面积与收缩期面积计算得出SEVR值,并对以上指标进行统计分析。结果统计分析结果显示,男性和女性间SEVR值差异有统计学意义(P<0.05),心率与SEVR值呈负相关(P<0.05),肌酐与SEVR值呈正相关(P<0.05)。结论性别、心率、肌酐可能是SEVR的主要影响因素,根据该研究,SEVR是一个受干扰因素较少的无创评估心肌灌注指标,有一定临床应用价值。

Objective To probe into the influencing factors of subendocardial viability ratio(SEVR)based on pulse wave analysis.Methods Height,weight and blood pressure were measured in 592 physical examination subjects.Fasting venous blood was collected to analyze blood glucose,blood lipids and other biochemical indicators.Pulse wave pressure waveforms were collected with cardiac function instruments of the Chinese academy of sciences,and SEVR values were calculated based on diastolic and systolic area.Results Multivariate linear regression analysis showed that SEVR values were significantly different between males and females(P<0.05),heart rate was negatively correlated with SEVR values(P<0.05),and creatinine was positively correlated with SEVR values(P<0.05).Conclusion Gender,heart rate and serum creatinine may be the main influencing factors of SEVR value.According to this study,SEVR is a non-invasive evaluation indicator of myocardial perfusion with few interferences,which has certain clinical application value.