Feng Panpan,Jia Fengpeng,Gu Jun,Gao Lingyun,He Quan,Lyu Fei.Prediction of left atrial thrombi using CHA2DS2-VASc scores in patients with nonvalvular atrial fibrillation before pulmonary vein isolation[J].J Amry Med Univ (J Third Mil Med Univ),2013,35(22):2396-2399.
Feng Panpan,Jia Fengpeng,Gu Jun,Gao Lingyun,He Quan,Lyu Fei.Prediction of left atrial thrombi using CHA2DS2-VASc scores in patients with nonvalvular atrial fibrillation before pulmonary vein isolation[J].J Amry Med Univ (J Third Mil Med Univ),2013,35(22):2396-2399.DOI:
Objective To investigate the predictive value of the CHA2DS2-VASc scores to left atrial (LA) thrombi in the patients with nonvalvular atrial fibrillation (AF) prior to pulmonary vein isolation (PVI). Methods A total of 212 patients with nonvalvular AF were included in this study. No anticoagulation therapy was given and a
ll patients underwent transesophageal echocardiography (TEE) immediately before PVI. CHA2DS2-VASc score was calculated. Results LA thrombi were identified on TEE in 33 patients (15.6%). CHA2DS2-VASc score of 0
1 and ≥2 accounted for 26.9%
28.8%
and 44.3% of patients
respectively. The prevalence of LA thrombi was significantly increased with CHA2DS2-VASc score [score 0 (0%)
score 1 (3.28%)
and score ≥2 (32.98%)
P
0.001
]
. In univariate analysis
age≥65
LA≥40mm
hypertension
diabetes
coronary heart disease
stroke history and CHA2DS2-VASc score were associated with thrombi. In multivariate logistic analysis
however
only CHA2DS2-VASc ≥2 was significantly associated with the presence of LA thrombi (OR=7.637
95% CI 1.144-50.986
P
0.05). Conclusion The risk of LA thrombi in nonvalvular AF patients without anticoagulation is high. High CHA2DS2-VASc score (≥2) is strongly associated with LA thrombi on TEE. Our findings suggest CHA2DS2-VASc may be used for screening of TEE before PVI
and TEE needs to be performed in the high-risk patients after regular anticoagulation.