Clinical study on the diagnosis of myocardial infarction by Poincare scatter pattern combined with ECG QRS fragmentation

WANG Feng-qin

doi:10.3969/j.issn.1672-5301.2018.03.012

Abstract：Objective To observe the value of Poincare scatter plot combined with electrocardiogram QRS cleavage (fQRS) in the diagnosis of myocardial infarction.Methods Forty-eight patients with acute myocardial infarction (AMI) were enrolled in our hospital from January 2015 to May 2017,40 patients with acute myocardial infarction(OMI)(68 cases) and no fQRS wave group(16 cases).The patients in the fQRS group were divided into non-comet group (group A) according to the Poincare scatter plot,And comet-like group (group B),no fQRS group(group C).Coronary angiography was used to diagnose the "gold standard",the results of coronary angiography were analyzed and compared between groups.Results Coronary anglography showed that in group A,4 cases (6.7％) had coronary artery single vessel disease and 56 cases (93.3％) had multi-vessel disease.In group B,11 cases(19.64％) had coronary artery single vessel disease,45 cases(80.36％).In group C,50 cases(64.10％) had coronary artery single vessel disease and 28 cases (35.90％) had multi-vessel disease.The percentage of multivessel disease in group B and C was smaller than that in group A (P＜0.05).The complete occlusion rate in group A (56.67％) was significantly higher than that in group B(21.43％) and group C(20.56％)(P＜0.05).Conclusion The complete occlusion of coronary artery in acute myocardial infarction are significantly higher in Poincare scatter plot combined with fQRS than that of Poincare scatter plots.The fQRS waveforms and fQRS waveforms not combined with Poincare scatterplot combined with electrocardiogram.The two indexes were combined with high risk myocardial infarction Early warning has a certain clinical significance.