舒張功能不全的心房顫動患者超聲心動圖指標與NT-proBNP的變化及相關(guān)性分析
[Abstract]:Background Atrial fibrillation is a common arrhythmia. The rapid and disordered fibrillation wave replaces the regular and orderly systolic and diastolic activity of the atrium. The incidence of atrial fibrillation is increasing year by year in China [1]. Due to the loss of effective systolic and diastolic function of the atrium, the pump function of the atrium and the irregular response of the ventricle may lead to cardiac insufficiency, including diastolic insufficiency and systolic insufficiency. Irregular atrial fibrillation can lead to atrial remodeling, which also exacerbates the progression of atrial fibrillation. Studies have shown that NT-proBNP is closely related to atrial fibrillation and the structural changes of left atrium [2] [3]. At present, there are more studies on the changes of NT-proBNP in patients with atrial fibrillation, but less on patients with atrial fibrillation with diastolic dysfunction. In this study, atrial fibrillation patients with diastolic dysfunction were studied by analyzing the changes of NT-proBNP and echocardiography indexes in the study subjects and the correlation between them. To evaluate the severity of such patients and to provide a theoretical basis for accurate diagnosis and treatment of such patients. Objective to investigate the relationship between echocardiographic parameters and NT-proBNP in patients with atrial fibrillation with diastolic dysfunction. Participants and methods 204 patients with atrial fibrillation who were admitted to the Department of Cardiovascular Medicine were divided into paroxysmal atrial fibrillation group (n = 87). 117 patients with persistent atrial fibrillation (including long-term persistent atrial fibrillation and permanent atrial fibrillation) and 100 patients with diastolic dysfunction without atrial fibrillation were selected as control group. Echocardiographic parameters (left atrial diameter, left atrial volume index, E / E, left ventricular ejection fraction, left ventricular end-diastolic diameter), NT-proBNP and glomerular filtration rate (eGFR) were collected. ANOVA was used to compare the three groups and LSD-q test was used to compare any two groups. Correlation analysis between two continuous variables was used to test the correlation between NT-proBNP and echocardiographic parameters and eGFR. There was statistical difference between the two groups. Result 1. Left atrial diameter, left atrial volume index and NT-proBNP in atrial fibrillation group (including paroxysmal atrial fibrillation group and persistent atrial fibrillation group) were significantly higher than those in control group (P0.05). There were significant differences in left atrial diameter, left atrial volume index and NT-proBNP between any two groups among the three groups (P0.05). The peak velocity of mitral orifice flow in early diastolic phase and the velocity of mitral annular movement E / E, ejection fraction of left ventricle, diameter of end diastolic of left ventricle, peak velocity of mitral orifice and early diastolic velocity of mitral annulus in any two groups between three groups. There was no significant difference in eGFR (P0.05). There was a positive correlation between 4.NT-proBNP and left atrial diameter (r = 0.626, P 0.001), left atrial volume index (r, 0.47, P ~ 0.001), 5.NT-proBNP and E/Em (r = 0.295, P < 0.05). There was no correlation among left ventricular ejection fraction (RV), left ventricular end-diastolic diameter (RV) and left ventricular end-diastolic diameter (RV). Conclusion 1. In patients with atrial fibrillation with diastolic dysfunction, pathological changes were found in the left atrial structure, and the left atrium was enlarged. In patients with atrial fibrillation with diastolic dysfunction, NT-proBNP was increased and positively correlated with left atrial diameter and left atrial volume index. Changes in left atrial structure and NT-proBNP can be used to predict the progression of atrial fibrillation.
【學位授予單位】:鄭州大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:R541.75
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