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Archives of cardiovascular diseases
Volume 106, n° 1
pages 36-43 (janvier 2013)
Doi : 10.1016/j.acvd.2012.09.002
Received : 9 April 2012 ;  accepted : 4 September 2012
Predicting favourable outcomes in the setting of radiofrequency catheter ablation of long-standing persistent atrial fibrillation: A pilot study assessing the value of left atrial appendage peak flow velocity
Prévoir les résultats favorables après l’ablation par radiofréquence de la fibrillation auriculaire persistante – Étude pilote sur l’intérêt la mesure de la vélocité de l’auricule gauche auriculaire
 

Figure 1




Figure 1 : 

A. Pulsed Doppler tracing of left atrial appendage obtained by transoesophageal echocardiography showing left atrial appendage peak flow velocity (LAV) at the mouth of the appendage at 80° in a patient who achieved successful atrial fibrillation (AF) termination (0.42m/s). B. Low LAV at the mouth of the appendage at 43° in a patient in whom persistent AF was not terminated during the procedure (0.22m/s).


Figure 2




Figure 2 : 

Flow chart of the study. AF: atrial fibrillation; AT: atrial tachycardia; DCC: direct current cardioversion; LAV: left appendage peak flow velocity; SR: sinus rhythm.


Figure 3




Figure 3 : 

Receiver operating characteristics curve showing the prognostic value of left atrial appendage peak flow velocity for the prediction of atrial fibrillation (AF) termination after catheter ablation. The optimal cutoff point was 0.30m/s, with a specificity of 72.8% and a sensitivity of 77.8% for predicting procedural AF termination.

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