International Journal of Clinical Medicine

Volume 3, Issue 7 (December 2012)

ISSN Print: 2158-284X   ISSN Online: 2158-2882

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Pulsed and Tissue Doppler Echocardiographic Abnormalities in Patients with Diastolic Heart Failure with and without Atrial Fibrillation

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DOI: 10.4236/ijcm.2012.37118    3,452 Downloads   5,120 Views  


Background: Symptoms of heart failure (HF) are identical in both systolic (SHF) and diastolic hear failure (DHF). The prevalence of atrial fibrillation (AF) in heart failure varies in different studies depending on the criteria of enrollment and the use of echocardiographic parameters in the definition of HF. Aim: To assess the clinical characteristic of pa- tients with DHF complicated by AF and compare with those with SHF in regard of echocardiographic abnormalities and causative agents. Furthermore, evaluate the clinical and biochemical markers for the prediction of AF in HF. Method: Over the duration of 12 months, each patient diagnosed as HF based on admission code was enrolled in the study. Patients were classified into two groups: group 1: DHF, with preserved LVPEF% > 50%, n = 204 (60%), and group 2, with SHF, with LVREF% ≤ 50%, n = 140 (40%). The presence or absence of AF on ECG was recorded. The predictive value of different clinical and biochemical variables for the development of AF was evaluated using logistic multiple regression analysis. Results: Three hundred and forty four eligible patients were admitted to hospital with heart failure out of 7650 who had other medical problems. The prevalence of HF in this population was 4.5%, those with DHF were 2.7% and SHF of 1.8%. The incidence of AF on ECG was 35% in the whole study population and 65% were in sinus rhythm (SR). The occurrence of AF was twice higher in DHF patients of 22% compared with 11% in SHF. Echo pulsed Doppler in DHF and AF compared with those in SR showed a severe restrictive pattern with significantly thick septum wall, higher LV mass index, shorter DT and higher E/e? ratio of 12.4 vs. 9.73, P < 0.05. The predictive risk (odd ratio) of different clinical variables for development of AF in HF was positive for LV hypertrophy on ECG of 2.4, history of hypertension of 1.6, history of DM of 1.4, BMI > 28 of 1.7. Conclusions: The prevalence of HF was 4.5% in the study population, with SHF of 1.8% and DHF of 2.7%. Patients with DHF and AF were older with a higher female ratio with severe restrictive pattern compared with those of SHF. The incidence of AF in the whole study was 35%. The best predictor of AF in HF was left ventricle hypertrophy followed by history of hypertension and DM.

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T. Garadah, N. Mahdi, M. Al Alwai, A. Jaradat and Z. Hasan, "Pulsed and Tissue Doppler Echocardiographic Abnormalities in Patients with Diastolic Heart Failure with and without Atrial Fibrillation," International Journal of Clinical Medicine, Vol. 3 No. 7, 2012, pp. 661-668. doi: 10.4236/ijcm.2012.37118.

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