Intra-Left Atrial Mechanical Delay Detected by Tissue Doppler Echocardiography Can Be a Useful Marker for Paroxysmal Atrial Fibrillation
Article first published online: 26 MAY 2009
© 2009, the Authors Journal compilation © 2009, Wiley Periodicals, Inc.
Volume 26, Issue 7, pages 779–784, August 2009
How to Cite
Deniz, A., Yavuz, B., Aytemir, K., Hayran, M., Kose, S., Okutucu, S., Tokgozoglu, L., Kabakci, G. and Oto, A. (2009), Intra-Left Atrial Mechanical Delay Detected by Tissue Doppler Echocardiography Can Be a Useful Marker for Paroxysmal Atrial Fibrillation. Echocardiography, 26: 779–784. doi: 10.1111/j.1540-8175.2008.00881.x
- Issue published online: 27 JUL 2009
- Article first published online: 26 MAY 2009
- paroxysmal atrial fibrillation;
- interatrial mechanical delay;
- intraatrial mechanical delay;
- tissue Doppler imaging;
- P-wave dispersion
Objectives: There are some clinical and echocardiographic parameters to predict paroxysmal atrial fibrillation (PAF), but more sensitive predictors are needed. Tissue Doppler imaging may be a sensitive method for this purpose. Methods: Thirty-four patients with PAF and 31 control subjects were studied. Time intervals from the beginning of P-wave to beginning of A-wave from lateral and septal mitral and right ventricular tricuspid annuli in tissue Doppler imaging were recorded. The differences between these intervals gave the mechanical delays between/within the corresponding atria. Results: There were no differences between groups with regard to age. PAF patients were found to have increased left atrial dimension and intra-left atrial mechanical delay. Twenty-five milliseconds was calculated as cutoff value to predict PAF. P-wave dispersion was found to be increased in PAF. Conclusions: This study shows an increase in intra-left atrial mechanical delay in PAF patients. This method can be used as an early marker to detect PAF.