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Prognostic value of Poincare/spl acute/ plot indexes in chronic heart failure patients

机译:普华氏菌/ SPL急性/地块指标在慢性心力衰竭患者中的​​预后价值

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The identification of prognostic indexes in chronic heart failure (CHF) patients represents a challenging task in the analysis of heart rate variability (HRV) We thus assessed the prognostic value of novel computer-generated quantitative descriptors of Poincare/spl acute/ plots (PPlots) of HRV in a case-control study over 13 CHF patients who experienced cardiac death and 13 matched CHF controls. All subjects underwent Holter recording with computation of the standard deviation of normal-to-normal intervals (SDNN) and PPlot analysis. While visual classification of PPlots and SDNN did not significantly differentiate the controls from the deceased patients, a highly significant association with outcome was found for quantitative PPlot indexes. This preliminary study shows that automatic quantification of PPlots allows a better discrimination between patients at risk of cardiac events and controls than does a visual classification of plot features and time-domain HRV.
机译:鉴定慢性心力衰竭(CHF)患者的预后指数在心率变异性(HRV)分析中表示有挑战性的任务,我们评估了新型计算机产生的Poincare / SPL急性/地块(PPlots)的预后价值HRV在一个案例对照研究中超过13例经历心脏死亡和13例匹配CHF控制的CHF患者。所有受试者都接受了HOSTER记录,计算了常规到正常间隔(SDNN)和PPLOT分析的标准偏差。虽然Pplots和SDNN的视觉分类没有显着区分死者对死者的对照,但发现了与结果的高度重大关联的定量型指数。该初步研究表明,PPlots的自动定量允许心脏事件和控制风险的患者之间更好的歧视,而不是绘制特征和时域HRV的视觉分类。

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