Author + information
- Ali Nazmi Çalik,
- Metin Çada,
- Bari§ Güngör,
- Özcan Serhan,
- Gürkan Karaca,
- Ufuk Gürkan,
- Hale Yaka Yilmaz and
- Osman Bolca
To compare atrial electromechanical delays (EMD) of patients with Lone AF with healthy individuals and examine the relationship of AF attack frequency with the determined atrial conduction times and electromechanical delays.
32 healty individuals and 32 patients with LAF criteria were included. The time from the beginning of the P wave on ECG to the A’ wave on tissue Doppler trace was accepted as the atrial conduction time (PA').
LA volumes and areas which were higher in Lone Af patients. ILeft-EMD (21,8±9,1 vs 14,1±4,9; p<0,001), IRight-EMD (9,3±6,8 vs 5,9±4,9; p=0.03) and IA-EMD times (24,7±11,2 vs 11,9±7,1; p<0,001) were longer in LAF patients. In multivariate regression analysis, ILeft-EMD times (OR: 1.14, 95% CI:1.03-1.27; p=0.012), IA-EMD times (OR: 1.12, 95% CI:1.03-1.23; p=0.007) and LA volumes (OR: 1.18, 95% Cl: 1.05-1.32; p=0.005) were predictors of LAF. In LAF group, the frequency of AF episodes was correlated with ILeft-EMD (r: 0.90, p<0.001) and IA-EMD times (r:0.36, p<0.004). (Table-1).
Atrial conduction and EMD times may increase in the early stages of AF even without left atrial dilatation and are clearly more valuable than left atrial area and volume in predicting AF, thus can be used in clinical practice.
|Patient Group (n=32)||Control Group(n=32)||P|
|Atrial Conduction Times|
|MS (mitral septal)(msn)||45,2±15,4||34,6±7,2||<0,001|
|ML (mitral lateral)(msn)||66,9±18,2||49,6±8,9||<0,001|
|TL (tricuspid lateral)(msn)||42,2±16,7||37,5±6,9||0,28|
|Atrial EMD times|
Poster Sessions, Expo North
Sunday, March 10, 2013, 9:45 a.m.-10:30 a.m.
Session Title: Imaging: Echo IX
Abstract Category: 18. Imaging: Echo
Presentation Number: 1227-346
- 2013 American College of Cardiology Foundation