Correlational Studies In 127 Patients With Acute Coronary Syndromes In Xining Regions And Fragmented QRS Complex

Objective:Acute Coronary artery Syndrome(ACS) on Coronary atherosclerosis plaque rupture or attack, secondary complete or incomplete occlusive thrombosis as the pathological basis of a group of clinical syndromes, including Acute st-elevation myocardial infarction(STEMI), Acute non ST segment elevation myocardial infarction(NSTEMI), unstable angina(UA) and heart source sudden death. Fragmented QRS wave [1](Fragmented QRS complex, f QRS) is a noninvasive ecg indexes, it refers to a new or existing ecg QRS wave of three-phase wave(RSR ’type) or polyphase wave, side by side in addition to complete or incomplete bundle branch block. In recent years, as more in-depth study of electrocardiogram(ecg), found that f QRS in the detection of patients with acute coronary syndromes and warning has important clinical value. This study on patients with acute coronary syndrome electrocardiogram f QRS, pathologic Q wave, comparing the detection positive rate of 18 patients with STEMI lead electrocardiogram QRS detection rate and the myocardial infarction area, LVEF relations correlation research, in order to from a more convenient and comprehensive in patients with acute coronary syndrome diagnosis and curative effect evaluation, to better serve the clinical.Methods: Select 127 patients, 87 cases of male, female 40 patients, all patients should be ruled out with bundle branch block, ventricular hypertrophy, pre-excitation syndrome syndrome, pacemaker rhythm of the heart, heart valvular disease, cardiomyopathy, diagnosis, type of ST segment elevation myocardial infarction(STEMI) in 91 cases, non st-elevation myocardial infarction(NSTEMI), 4 cases of unstable angina(UA), 23 cases of regression analysis, the 18 lead electrocardiogram(ecg), myocardial enzyme, cardiac color doppler, percutaneous coronary angiography results.Results: 127 patients with f QRS appears in the object of study, a total of 113 cases including patients with NSTEM, STEMI, UA f QRS detected positive each accounted for 3.5%, 72.6%, 23.9%, did not check out each accounted for 0.0%, 64.3%, 35.7%, P < 0.05; In a total of 91 patients with pathologic Q wave NSTEM, patients with STEMI, UA f QRS detected positive each accounted for 0.0%, 95.6%, 4.4%, did not check out each accounted for 11.1%, 11.1%, 77.8%, P < 0.05; Patients with STEMI f QRS and pathologic Q wave detection rate of positive contrast, P > 0.05, f QRS, pathologic Q wave detection rate of no significant difference. STEMI patients into the LAD,RCA, LCX group, detection positive rate were 96.4%, 75.0%, 90.9%, the detection of three groups of patients with PCI postoperative f QRS positive rate reduce or unchanged accounted for 96.3%, 100%, 99%; Different position of coronary lesions and 18 lead electrocardiogram(ecg) of each lead f QRS test positive rate in Ⅱ, Ⅲ, av F is relative taller; STEMI patients can be divided into the wall, front wall group, high sidewall group, inferior wall myocardial infarction group f QRS detection rate was significantly higher than that of anterior wall, high sidewall group, the difference compared the two groups was statistically significant, P < 0.05; FQRS detection rate presents with myocardial infarction area is significant positive linear correlation r = 0.42, and LVEF was significantly negative linear correlation r = 0.44.Conclusion:f QRS wave with ACS(STEMI and NSTEMI, UA) and OMI has certain relevance. FQRS wave detection in patients with STEMI were compared with pathologic Q wave, basically the same, so the f QRS wave for STEMI have supplementary diagnostic value. In this study, f QRS waves appear in figure 18 guide umc heart lead several tips, lead the next wall Ⅱ, Ⅲ, incidence of av F is significantly higher than other lead, its mechanism is unclear, but under consideration and the heart wall on left and right two overlapping coronary artery blood supply. FQRS STEMI patients with myocardial infarction area were positively correlated, f QRS as a large area of myocardial infarction in patients with STEMI warning factor. Patients with STEMI f QRS negative correlation with LVEF, f QRS can be used as a hint of left cardiac insufficiency in patients with STEMI, an important indicator of heart pump failure.