Mozos Ioana, Hancu Mircea, Cristescu Alexandru
Department of Pathophysiology, University of Medicine and Pharmacy "Victor Babes", Timisoara, Romania.
J Electrocardiol. 2011 Mar-Apr;44(2):152-6. doi: 10.1016/j.jelectrocard.2010.12.003.
The aim of this study was to assess the changes in body surface maps in patients with postinfarction heart failure (PIHF).
Body surface mapping was performed in 22 patients with PIHF and 20 age-matched healthy controls, using a 64-electrode vest. A card index was made for every patient and person of the control group, containing isopotential and isointegral maps. The number and absolute value of maxima and minima were assessed for every map.
Only bipolar maps were recorded in the healthy control group, and multipolar maps were found in 55% of the patients with PIHF. All patients with multipolar isointegral QRST maps had also multipolar isopotential ST maps (J + 110 milliseconds); 67%, multipolar isopotential QRS peak maps; 33%, multipolar isointegral Q40 maps; 17%, multipolar isointegral QRS maps; 67%, multipolar isointegral STT maps; and 50%, multipolar isointegral ST maps. Significant differences were noticed in maxima and minima in patients with PIHF compared with healthy controls and in patients with multipolar isointegral maps (QRST and Q40) compared with those with bipolar maps. Multiple regression analysis revealed that multipolar QRST maps were significantly associated (P < .001) with maxima and minima of the isointegral maps. Isointegral multipolar QRST maps were significantly associated (P < .001) with multipolar isopotential ST maps, multipolar isointegral QRS maps, multipolar isointegral STT maps, and multipolar isointegral ST maps.
Postinfarction heart failure increases the prevalence of multipolar maps and significantly changes maxima and minima. Multipolar QRST isointegral maps are significantly associated with maxima and minima of the QRS, ST, STT, and QRST maps and with other types of multipolar maps: isointegral QRS, STT, ST and isopotential ST (J + 110 milliseconds), and QRS peak maps.
本研究旨在评估心肌梗死后心力衰竭（PIHF）患者体表电位图的变化。
使用64电极背心对22例PIHF患者和20例年龄匹配的健康对照者进行体表电位标测。为每组患者及对照者制作心脏指数，包括等电位图和等积分图。评估每张图的最大值和最小值的数量及绝对值。
健康对照组仅记录到双极图，55%的PIHF患者发现有多极图。所有有多极等积分QRST图的患者也有多极等电位ST图（J + 110毫秒）；67%有多极等电位QRS峰值图；33%有多极等积分Q40图；17%有多极等积分QRS图；67%有多极等积分STT图；50%有多极等积分ST图。与健康对照者相比，PIHF患者的最大值和最小值存在显著差异，与双极图患者相比，有多极等积分图（QRST和Q40）的患者也存在显著差异。多元回归分析显示，多极QRST图与等积分图的最大值和最小值显著相关（P <.001）。等积分多极QRST图与多极等电位ST图、多极等积分QRS图、多极等积分STT图和多极等积分ST图显著相关（P <.001）。
心肌梗死后心力衰竭增加了多极图的发生率，并显著改变了最大值和最小值。多极QRST等积分图与QRS、ST、STT和QRST图的最大值和最小值以及其他类型的多极图：等积分QRS、STT、ST和等电位ST（J + 110毫秒）以及QRS峰值图显著相关。
