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Abstract
With the wide spread prevalence of non-rheumatic atrial fibrillation and associated complications, non invasive tests have to be evaluated for their ability to predict these possible cardiogenic thromboembolic complications, which is a very important issue for diagnostic, therapeutic and prognostic reasons, for example Doppler echocardiographic & TDI study because of its ability to detect myocardial thickness and wall motion in real time.
Yet, transesophageal echocardiography suffers from the disadvantages of being invasive method relatively expensive and experience dependent, although it’s high degree of accuracy.
This has increased the need for development of a noninvasive method for evaluation of left atrial function and probability for thromboembolic complications in AF patients’ particularly nonrheumatic ones.
TDI is a new imaging modality, based on color Doppler imaging principles and allows quantification of intramural myocardial velocities (Goreson, et al. 1997).
The current study comprised 50 patients with non-rheumatic atrial fibrillation and 30 normal volunteers as a control group.
The control group (30 normal volunteers) included 16 males (53.3 %) and 14 females (46.7 %) with age range 40-70 [58.8 + 8.2 yrs.].
The patients group (50 patients with non-rheumatic atrial fibrillation) included 28 patients free from thromboembolic manifestations (stroke, TIA’s or other peripheral thromboembolisms] with a mean age ± S.D (59.4 ± 9.6 yrs) and 22 patients with positive past history and / or in actual state of thromboembolic manifestations (stroke, TIA’s or other peripheral thromboembolisms) with a mean age = 64.1±7.8 yrs.
Group (II) included:
-9 patients with fine AF (31%).
- 13 with coarse AF (61.9%).
-5 (22.7%) free from LA smoke.
-6(27.3 %%) with fine smoke.
-11(50%) with dense smoke.
-LA d (45.4 ± 5.4).
- L.V.E.F. % (45.3 ± 9.9).
- E/Em ratio (4.1 ± 1.7.