Correlation between abnormal left atrial appendage function and thrombotic events in patients with non-valvular atrial fibrillation
10.3760/cma.j.cn112138-20220117-00055
- VernacularTitle:非瓣膜性心房颤动患者左心耳功能异常与血栓形成事件的相关性研究
- Author:
Jiaqi LIU
1
;
Meng WEI
;
Dilare TAIWAIKULI
;
Jiayina JIAERKEN
;
Huasheng LYU
;
Yongqiang FAN
;
Xianhui ZHOU
;
Baopeng TANG
;
Yanmei LU
Author Information
1. 新疆医科大学第一附属医院心脏中心起搏电生理科 新疆心电生理与心脏重塑重点实验室，乌鲁木齐 830054
- Keywords:
Atrial fibrillation;
Left atrial appendage function;
Thrombosis
- From:
Chinese Journal of Internal Medicine
2022;61(8):921-927
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the association between abnormal left atrial appendage function and thrombotic events in patients with non-valvular atrial fibrillation, and the independent risk factors affecting left atrial appendage function.Methods:Patients with non-valvular atrial fibrillation, who visited the Atrial Fibrillation Center of the First Affiliated Hospital of Xinjiang Medical University from June 1, 2019 to June 1, 2021, were selected. According to left atrial appendage flow velocity (LAAFV), they were divided into normal left atrial appendage function group (297 patients with LAAFV ≥ 40 cm/s) and abnormal left atrial appendage function group (85 patients with LAAFV<40 cm/s). Baseline data and transesophageal echocardiography images were collected from all the patients. The occurrence of thrombotic events was recorded. Univariate and multivariate unconditional logistic regression analyses were conducted to investigate the correlation between abnormal left atrial appendage function and the occurrence of thrombotic events.Results:There were significant differences in gender, type of atrial fibrillation, CHA 2DS 2-VASc score, anticoagulant therapy, total cholesterol, low-density lipoprotein cholesterol, international normalized ratio (INR), left atrial diameter, proportion of patients with right atrial enlargement, left ventricular ejection fraction, inner diameter, sum of inner diameter, depth, and sum of depth of all angles of the left atrial appendage, and incidence of thrombotic events between the two groups (all P<0.05). After adjusting for confounders, multivariate unconditional logistic regression analyses showed that abnormal left atrial appendage function was closely associated with thrombotic events (β=1.168 P=0.002), and left atrial diameter ( OR=1.084, 95% CI 1.019-1.153, P=0.011) and persistent atrial fibrillation ( OR=2.323, 95% CI 1.226-4.403, P=0.010) were independent risk factors affecting left atrial appendage function. Conclusions:Abnormal left atrial appendage function is closely associated with thrombosis. The left atrial diameter and persistent atrial fibrillation were independent risk factors affecting left atrial appendage function.
