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- W2898076485 abstract "The potential for thromboembolism in atrial flutter (AFL) is different from atrial fibrillation. AFL cycle length (AFL-CL) may be related to reduced left atrial appendage (LAA) function. Very rapid AFL-CL can lead to mechanical and electrophysiological disorders that contribute to lower LAA emptying velocity (LAEV). The aim of this study is to relate atrial flutter cycle length with LAEV and its role in thrombogenesis.Cross-sectional study of patients with atrial flutter AFL who underwent transoesophageal echocardiography (TEE) before catheter ablation or electric cardioversion. AFL-CL in milliseconds was measured with a 12-lead EKG or in intracardiac records.We included 123 patients. There was correlation between AFL-CL and LAEV (r = 0.34; p = 0.003) in typical AFL. Cycle length, LA size and atypical flutter were predictors of low LAEV on multivariate analysis. An index multiplying atrial rate (bpm) during the arrhythmia versus left atrial size(mm) >11,728 was associated with spontaneous echogenic contrast and/or left atrial thrombus on TEE (C-statistic = 0.71; CI95%0.60-0.81).There was a significant relationship between the AFL-CL and LAEV. The LAEV was affected by the LA size, the type of atrial flutter and the AFL-CL. A new index, relating the atrial rate with the left atrial size, was able to identify a higher occurrence of spontaneous echogenic contrast and/or left atrial thrombus." @default.
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- W2898076485 date "2019-01-01" @default.
- W2898076485 modified "2023-09-29" @default.
- W2898076485 title "Atrial flutter and embolic risk: The relationship between atrial flutter cycle length and left atrial appendage function" @default.
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- W2898076485 doi "https://doi.org/10.1016/j.jelectrocard.2018.10.086" @default.
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