老年冠心病患者发生心律失常类型临床相关因素分析
[Abstract]:Aim: to analyze the relationship between atrial arrhythmias and ventricular arrhythmias in elderly patients with coronary heart disease (CHD) and the number of vascular branches, plasma BNP, serum potassium concentration, left ventricular end diastolic diameter and left ventricular ejection fraction (LVEF). Methods: 634 elderly patients with coronary heart disease diagnosed by clinical symptoms and coronary angiography were all over 60 years old. According to their clinical manifestations and auxiliary examination results, they were divided into acute coronary syndrome (acute coronary syndrome,). (ACS) and chronic ischemic syndrome (chronic ischemic syndrome,CIS) group, recorded 24 hours dynamic electrocardiogram changes in each group, (Holter) identified the type of arrhythmias that occurred within 24 hours. The relationship between the incidence of atrial and ventricular arrhythmias and the number of vascular lesions, serum potassium concentration, plasma BNP, left ventricular ejection fraction and left ventricular end-diastolic diameter were further analyzed. Results: 1. The types of arrhythmias in elderly patients with acute myocardial ischemia and chronic myocardial ischemia were as follows: ACS group and CIS group: there were 476 patients in ACS group, among them, atrial preatrial contraction: 144 cases, atrial tachycardia 38 cases. There were 110 cases of atrial fibrillation 138 cases of ventricular extrasystole 34 cases of ventricular tachycardia and 12 cases of ventricular fibrillation. In CIS group, there were 18 cases of atrial precontraction, 8 cases of atrial tachycardia, 46 cases of atrial fibrillation, 62 cases of ventricular extrasystole, 22 cases of ventricular tachycardia, 2 cases of ventricular fibrillation, 2 cases of ventricular fibrillation, 22 cases of ventricular tachycardia, 2 cases of ventricular fibrillation, 46 cases of atrial fibrillation, 62 cases of ventricular extrasystole. The clinical related factors and correlation of arrhythmia type (atrial and ventricular) in elderly ACS group were as follows: (1) the concentration of serum potassium could affect the type of arrhythmias: when serum potassium was lower than normal, the incidence of ventricular arrhythmias was higher, and the incidence of ventricular arrhythmias was higher when serum potassium was lower than normal. The difference was statistically significant (67.80%, P0.05). (- 2). The incidence of arrhythmias in multi-vessel coronary artery lesions was higher than that in single-vessel lesions, but there was no significant difference (P0.05). When BNP increased, LVEF decreased and LVDD increased, the incidence of atrial arrhythmias was higher than that of ventricular arrhythmias, and there was no significant difference (P0.05). (1) the increase of plasma BNP level, the increase of left ventricular ejection fraction (LVEF) and the increase of left ventricular end diastolic diameter (LVEDD) may affect the type of arrhythmias. The incidence of ventricular arrhythmias was higher, the difference was statistically significant (PO.05). (- 2), the reduction of serum potassium level could increase the incidence of arrhythmias. However, there was no correlation between arrhythmias (P0.05). (3) and the incidence of arrhythmias was higher in single vessel lesions. Conclusion: 1. The incidence of ventricular arrhythmias is higher in elderly patients with ACS complicated with hypokalemia. The number of vascular lesions, plasma BNP level, left ventricular ejection fraction (LVEF) and left ventricular end diastolic diameter (LVEDD) did not affect the type of arrhythmias. 2. In elderly patients with CIS, the level of plasma BNP increased. When left ventricular ejection fraction decreased and left ventricular end diastolic diameter increased, the incidence of ventricular arrhythmias was higher. The number of vascular lesions and the concentration of potassium in blood had no significant effect on the type of arrhythmias.
【学位授予单位】:吉林大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:R541.4;R541.7
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