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Inverse Correlation Between Left Atrial Appendage Function and CHA2DS2-VASc Score in Patients with Atrial Flutter.


ABSTRACT: Impaired left atrial appendage ejection fraction (LAA-EF) and peak LAA flow velocity (LAA-FV) are associated with high thromboembolic risks in patients with atrial fibrillation (AF). Herein, we examined LAA function among patients with atrial flutter (AFL) stratified by the CHA2DS2-VASc score using transesophageal echocardiography (TEE). Of 231 consecutive patients with typical AFL, 84 who fulfilled the inclusion criteria were enrolled. Among them, 57 had ongoing AFL and were divided into the isolated AFL (n?=?38) and AFL with paroxysmal AF (PAF) (n?=?19) groups, depending on whether they had sporadic AF before TEE. The remaining 27 patients with spontaneous sinus rhythm during TEE were designated as controls. Both the LAA-FV (31.9?cm/s vs. 51.5?cm/s, P?=?0.004) and LAA-EF (28.4% vs. 36.5%, P?=?0.024) measured during AFL were significantly lower in the AFL?+?PAF group than in the isolated AFL group. Significant inverse correlations between the CHA2DS2-VASc score and LAA-EF were identified in the AFL (P?=?0.008) and AFL?+?PAF (P?=?0.032) groups. We observed progressive LAA dysfunction in patients with AFL?+?PAF compared with that in patients with isolated AFL, and the LAA-EF was inversely correlated with the CHA2DS2-VASc score in these patients. Our findings may have implications on the application of thromboprophylactic therapy in patients with AFL.

SUBMITTER: Wu MY 

PROVIDER: S-EPMC6883047 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Inverse Correlation Between Left Atrial Appendage Function and CHA<sub>2</sub>DS<sub>2</sub>-VASc Score in Patients with Atrial Flutter.

Wu Mei-Yao MY   Lin Yen-Nien YN   Wu Hung-Pin HP   Huang Ying-Ying YY   Chen Jan-Yow JY   Lin Kuo-Hung KH   Chang Kuan-Cheng KC  

Scientific reports 20191128 1


Impaired left atrial appendage ejection fraction (LAA-EF) and peak LAA flow velocity (LAA-FV) are associated with high thromboembolic risks in patients with atrial fibrillation (AF). Herein, we examined LAA function among patients with atrial flutter (AFL) stratified by the CHA<sub>2</sub>DS<sub>2</sub>-VASc score using transesophageal echocardiography (TEE). Of 231 consecutive patients with typical AFL, 84 who fulfilled the inclusion criteria were enrolled. Among them, 57 had ongoing AFL and we  ...[more]

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