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Left atrial mechanical function after brief duration atrial fibrillation

Paul B. Sparks, MBBS^{* ,1}, Shenthar Jayaprakash, MD^*, Harry G. Mond, MD, FACC^*, Jitendra K. Vohra, MD, FACC^*, Leeanne E. Grigg, MBBS^* and Jonathan M. Kalman, MBBS, PhD, FACC^*

^* Royal Melbourne Hospital Department of Cardiology, Parkville, Victoria, 3050 Australia
University of Melbourne Department of Medicine, Parkville, Victoria, 3050 Australia

View larger version (15K): [in a new window]   Figure 1 Left atrial appendage flow velocity changes before and during atrial fibrillation and after cardioversion from atrial fibrillation to sinus rhythm. Note the significant differences between velocities during atrial fibrillation (*) and sinus rhythm () (p < 0.01). There were no significant differences between velocities in sinus rhythm before atrial fibrillation and after cardioversion from brief duration atrial fibrillation. AF = atrial fibrillation; SR = sinus rhythm.

View larger version (29K): [in a new window]   Figure 2 A comparison between left atrial appendage flow velocities in sinus rhythm, pre–atrial fibrillation and immediately (0 min), 5 min and 10 min after cardioversion from brief atrial fibrillation in individual patients taking either amiodarone (squares) or sotalol (diamonds). There were no significant differences between velocities in sinus rhythm before atrial fibrillation and after cardioversion from brief duration atrial fibrillation in patients taking either amiodarone or sotalol. SR = sinus rhythm.