不同类型心房颤动患者心脏结构及B型钠尿肽水平的变化

Relationship between plasma leves B-type natriuretic peptide and cardiac structure in patients with different types of atrial fibrillation

Objective: To analyze the risk factors related to plasma levels of BNP in patients with different types of atrial fibrillation（AF）. Methods:Sixty-five patients with AF were divided into paroxysmal AF group (n=35) and persistent AF group (n=30), and 30 patients without AF were included as control. Detailed information were recorded including the basic characteristics of patients, biochemical parameters, the levels of plasma BNP and transthoracic echocardiography indices. Results: The BNP level in patients with persistent AFgroup was significantly higher than that in paroxysmal AF group (BNP:397.70 ± 335.91vs215.17 ± 212.66，P<0.001), and the BNP level in the two groups with AF was higher than control group (63.93 ± 69.78, P <0.001). The blood BNP levels were positively correlated with LAD (r=0.419, P <0.001). Conclusion: The plasma BNP levels tend to increase with the development of atrial fibrillation, and are significantly positively correlated with LAD in patients with atrial fibrillation.