Conduction characteristics in atrial fibrillation. Predictive value of tissue Doppler echocardiography
Herz, cilt.39, sa.1, ss.137-141, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 39 Sayı: 1
- Basım Tarihi: 2014
- Doi Numarası: 10.1007/s00059-013-3795-1
- Dergi Adı: Herz
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.137-141
- Anahtar Kelimeler: Atrial conduction time, Atrial fibrillation, Tissue Doppler echocardiography, Electrophysiology study, Interatrial conduction
- Sağlık Bilimleri Üniversitesi Adresli: Evet
Özet
Background. Atrial fibrillation (AF) is one of the most common arrhythmias observed in clinical practice. The frequency of AF is increased in patients with impaired interatrial conduction. We aimed to investigate whether tissue Doppler echocardiography could be used for the evaluation of atrial conduction characteristics instead of an electrophysiological study, and to examine the predictive accuracy of tissue Doppler echocardiography for the inducibility of sustained AF. Methods. We enrolled 86 consecutive patients who underwent an electrophysiological study. We performed electrocardiographic P wave dispersion, M-mode, two-dimensional, Doppler, and tissue Doppler echocardiography as well as an electrophysiological study (EPS) to evaluate the intra- and interatrial conduction times. We tried to induce AF, and the patients were categorized according to the inducibility of sustained (>120 s) AF. Results. We found a good correlation between intra-left atrial conduction time detected by tissue Doppler echocardiography (ILCT-echo) and by EPS (ILCT-eps; r=0.744, p<0.001), and a weak correlation between interatrial conduction times (IACT-echo and IACT-eps, r=0.396, p<0.001). In patients with inducible sustained AF, P wave dispersion (46±19 ms vs. 27±18, p<0.001), ILCT-echo (29±10 ms vs. 17±7 ms, p<0.001), and IACT-eps (47±11 ms vs. 36±13 ms, p<0.001) were found to be higher than those of the noninducible/nonsustained AF group. These three parameters were independent predictors of the inducibility of sustained AF. Conclusion. We demonstrated that ILCT-echo could be used instead of ILCT-eps for the evaluation of left atrial conduction characteristics. We also showed that ILCT-eps could be a valuable parameter for predicting the development of long-lasting AF. © 2013 Urban & Vogel.