The value of QRS terminal distortion in the assessment of the condition and prognosis of patients with acute ST-segment elevation myocardial infarction
Bao Jianmin
Tang Yan
Yu Qiuxi
Deng Jun
Li Yang
Lu Yan
Liu Yushi
Wang Wenjin
Abstract：Objective To investigate the value of terminal distortion of QRS in evaluating the condition and prognosis of patients with acute ST segment elevation myocardial infarction (STEMI). Methods 139 patients with STEMI in Cardiac function department,The Third People's Hospital of Hubei province in June 2016~2017 were selected as the subjects. The patients were divided into QRS terminal distortion group (n=61) and non QRS terminal distortion group (n=78) according to the characteristics of the patients' electrocardiogram. The general clinical data (gender, age, complications, location of myocardial infarction, course of disease, proportion of thrombolytic therapy, ST elevation leads, QRS score, myocardial enzymes, creatine kinase, left ventricular ejection fraction), prognostic indicators (incidence of cardiovascular events, mortality, Killip cardiac function classification) was evaluated and compared between the two groups. Results There was no significant difference in gender, complication, myocardial infarction, thrombolytic therapy and ST elevation lead in the general data of the two groups(P>0.05). The age, the course of the disease, QRS integral, the myocardial enzyme, the creatine kinase level of QRS terminal distortion group was higher than the non QRS end distortion group, and the left ventricular ejection fraction was lower than the non QRS terminal distortion group, and there was a significant difference between the two groups (P<0.05). The incidence of adverse cardiovascular events and the mortality of the patients with QRS terminal distortion were higher than those in the non QRS end warping group. The proportion of III and IV in the Killip cardiac function classification was higher than that of the non QRS terminal distortion group, and the difference between the two groups had the statistical significance (P<0.05). Conclusion The diagnosis, evaluation and prognosis of STEMI patients can be realized by differentiating the degree of distortion of QRS waveform in electrocardiogram.
Keywords：Acute ST segment elevation myocardial infarctionElectrocardiogramQRS terminal distortionPrognosisEvaluation value
Publication Date：2019-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 853-855,858 )