Acute Haemodialysis-induced Changes in Tissue Doppler Echocardiography Parameters

• Main Authors: Saim Sağ, Dilek Yeşilbursa, Tunay Şentürk, Osman Akın Serdar, Ali Aydınlar, Abdulmecit Yıldız, Kamil Dilek
• Format: Article
• Language: English
• Published: Galenos Publishing House 2014-09-01
• Series: Balkan Medical Journal
• Subjects: Echocardiography; haemodialysis; left ventricular systolic and diastolic function; tissue Doppler imaging
• Online Access: http://balkanmedicaljournal.org/text.php?lang=en&id=292
• ISSN: 2146-3123; 2146-3131

Background: Tissue Doppler imaging (TDI) is a method that determines the tissue motion and velocity within the myocardium. Aims: To characterize acute haemodialysis (HD)-induced changes in TDI-derived indices for patients that have end-stage renal disease (ESRD). Study Design: Cross sectional study. Methods: Conventional echocardiography and TDI methods were applied to study ESRD patients (n=58) before and after HD. Pulmonary venous flow, mitral inflow, and TDI signals of the lateral and septal mitral annulus were examined for the determination of altered left-ventricular diastolic filling parameters. Flow velocities from early- (E) and late-atrial (A) peak transmitral; peak pulmonary vein systolic (S) and diastolic (D); and myocardial peak systolic (Sm) and peak early (Em) and late (Am) diastolic mitral annular velocities were also assessed for changes. Results: Transmitral E and A velocities and the E/A ratio decreased significantly after HD (p<0.001). Pulmonary vein S (p<0.001) and D (p<0.001) velocities decreased, and S/D ratios increased significantly (p=0.027). HD led to a reduction in septal Em (p<0.001), lateral Em (p=0.006), and Am (p<0.001) velocities. Contrary to the decreases in Em and Am, the Em/Am ratio remained unchanged. Conclusion: A single HD session was associated with an acute deterioration in the diastolic parameters. Since the Em/Am ratio remained unchanged, we conclude that this index is a relatively load-independent measure of diastolic function in HD patients.