Intra-Left Atrial Mechanical Delay Detected by Tissue Doppler Echocardiography Can Be a Useful Marker for Paroxysmal Atrial Fibrillation |
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Authors: | Ali Deniz,M.D.,Bunyamin Yavuz,M.D.,&dagger ,Kudret Aytemir,M.D.,F.E.S.C.,&Dagger ,Mutlu Hayran,M.D.,Ph.D.,§ ,Sedat Kose,M.D.,¶ ,Sercan Okutucu,M.D.,&Dagger ,Lale Tokgozoglu,M.D.,F.E.S.C.,F.A.C.C.,&Dagger ,Giray Kabakci,M.D.,F.E.S.C.,&Dagger , Ali Oto,M.D.,F.E.S.C.,F.A.C.C.,F.H.R.S,&Dagger |
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Affiliation: | Department of Cardiology, Ulus State Hospital, Ankara, Turkey;, Department of Cardiology, Kecioren Teaching and Research Hospital, Ankara, Turkey;, Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey;, Department of Preventive Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey;, and Department of Cardiology, Gulhane Military Medical School, Ankara, Turkey |
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Abstract: | 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. |
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Keywords: | paroxysmal atrial fibrillation interatrial mechanical delay intraatrial mechanical delay tissue Doppler imaging P-wave dispersion |
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