A series of related electrophysiology phenomena can be caused by the occurrence of interpolated ventricular premature contraction.In our recent three-dimensional Lorenz R-R scatter plot research,we found that atrioven...A series of related electrophysiology phenomena can be caused by the occurrence of interpolated ventricular premature contraction.In our recent three-dimensional Lorenz R-R scatter plot research,we found that atrioventricular node double path caused by interpolated ventricular premature contraction imprints a specifi c pattern on three-dimensional Lorenz plots generated from 24-hour Holter recordings.We found two independent subclusters separated from the interpolated premature beat precluster,the interpolated premature beat cluster,and the interpolated premature beat postcluster,respectively.Combined with use of the trajectory tracking function and the leap phenomenon,our results reveal the presence of the atrioventricular node double conduction path.展开更多
目的 观察窦性心率谱在冠心病(CHD)患者中的变化及其经皮冠状动脉介入(PCI)术对其产生的影响。方法 收集101例行冠状动脉造影(CAG)患者的术前24 h 12导联动态心电图信息,根据CAG结果分为CHD组71例(至少1支主要血管狭窄≥50%)和对照组30...目的 观察窦性心率谱在冠心病(CHD)患者中的变化及其经皮冠状动脉介入(PCI)术对其产生的影响。方法 收集101例行冠状动脉造影(CAG)患者的术前24 h 12导联动态心电图信息,根据CAG结果分为CHD组71例(至少1支主要血管狭窄≥50%)和对照组30例。CHD组中36例行PCI,并行PCI术前与术后48 h内24 h动态心电图信息的比较。比较不同分组Lorenz-RR散点图稳态吸引子、时间散点图形态与相关测量值。结果 CHD组稳态吸引子多为非棒球拍形,总占比95.8%,对照组多为棒球拍形(50.0%);PCI术后组棒球拍形(33.3%)占比较术前(5.6%)增多,P<0.05;CHD组的Lorenz-RR散点图的长轴(SD2)短于对照组[(850.479±168.064) ms vs (943.700±176.053) ms,P=0.014],PCI术后组SD2短于PCI术前组[(747.056±150.603) ms vs (832.139±145.348)ms,P=0.001],时间散点图条带平均宽度大于术前组[(2.250±0.613)ms vs (1.917±0.579) ms,P<0.05]。结论 冠状动脉狭窄与狭窄解除后窦性心率谱的变化反映了心脏自主神经张力的变化及其对心率调节与平衡的影响。展开更多
文摘A series of related electrophysiology phenomena can be caused by the occurrence of interpolated ventricular premature contraction.In our recent three-dimensional Lorenz R-R scatter plot research,we found that atrioventricular node double path caused by interpolated ventricular premature contraction imprints a specifi c pattern on three-dimensional Lorenz plots generated from 24-hour Holter recordings.We found two independent subclusters separated from the interpolated premature beat precluster,the interpolated premature beat cluster,and the interpolated premature beat postcluster,respectively.Combined with use of the trajectory tracking function and the leap phenomenon,our results reveal the presence of the atrioventricular node double conduction path.
文摘目的 观察窦性心率谱在冠心病(CHD)患者中的变化及其经皮冠状动脉介入(PCI)术对其产生的影响。方法 收集101例行冠状动脉造影(CAG)患者的术前24 h 12导联动态心电图信息,根据CAG结果分为CHD组71例(至少1支主要血管狭窄≥50%)和对照组30例。CHD组中36例行PCI,并行PCI术前与术后48 h内24 h动态心电图信息的比较。比较不同分组Lorenz-RR散点图稳态吸引子、时间散点图形态与相关测量值。结果 CHD组稳态吸引子多为非棒球拍形,总占比95.8%,对照组多为棒球拍形(50.0%);PCI术后组棒球拍形(33.3%)占比较术前(5.6%)增多,P<0.05;CHD组的Lorenz-RR散点图的长轴(SD2)短于对照组[(850.479±168.064) ms vs (943.700±176.053) ms,P=0.014],PCI术后组SD2短于PCI术前组[(747.056±150.603) ms vs (832.139±145.348)ms,P=0.001],时间散点图条带平均宽度大于术前组[(2.250±0.613)ms vs (1.917±0.579) ms,P<0.05]。结论 冠状动脉狭窄与狭窄解除后窦性心率谱的变化反映了心脏自主神经张力的变化及其对心率调节与平衡的影响。
