论文部分内容阅读
本文对50例心肌梗塞(MI)病人的心室晚电位(VLP)检测结果进行定性与定量分析:(1)MI组与正常组之间存在着显著性差异(P<0.001),提示VLP是一种病理性的电活动;(2)不同部位MI的VLP阳性检出率下壁为38％、前壁为35％、前间壁为33％、前侧壁为20％,提示下壁MIVLP的阳性检出率较高。此外,根据对VLP定量分析的结果发现,下壁、前间壁MI对反映传导和电压的指标均敏感。而前壁、前侧壁MI仅对反映传导的指标敏感,其机理需进一步探讨;(3)急性心肌梗塞与陈旧性心肌梗塞组都有形成VLP的可能,但前者检出率相对较高。由此提出应根据不同发生机制而采取针对性较强的防止电不稳定的措施;(4)MI伴室性心律失常(VA)组与不伴VA组之间存在着显著性差异(P<0.001),提示VLP阳性者VA的发生率较高。
This article qualitative and quantitative analysis of ventricular late potential (VLP) results in 50 patients with myocardial infarction (MI): (1) There was a significant difference (P <0.001) between MI group and normal group, suggesting that VLP is a Pathological electrical activity; (2) The positive rate of VLP in different sites of MI was 38% in inferior wall, 35% in anterior wall, 33% anterior wall and 20% anterior wall, suggesting positive MIVLP in inferior wall The detection rate is higher. In addition, based on the results of quantitative analysis of VLPs, it was found that inferior wall and anterior MI were sensitive to the indicators of conduction and voltage. However, the anterior MI and anterior MI were only sensitive to the indicators that reflect the transmission. The mechanism needs to be further explored. (3) Both acute myocardial infarction and old myocardial infarction have the possibility of forming VLP, but the detection rate of the former is relatively high. It is suggested that measures to prevent electrical instability should be taken according to different mechanisms. (4) There is a significant difference between MI group and VA group (P < 0.001), suggesting that VLP-positive patients with a higher incidence of VA.