Significance of Tissue Doppler Echocardiography-Based Dispersion Index of Myocardial Velocities in the Differentiation of Ischemic and Nonischemic Cardiomyopathy: A Novel Echocardiographic Parameter
| Autor: | Narra Sandeep, Otikunta Adikesava Naidu, Ravi Srinivas, Nagula Praveen, Parvathareddy Krishna Malakonda Reddy |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging, Vol 4, Iss 2, Pp 154-160 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2543-1463 2543-1471 |
| DOI: | 10.4103/jiae.jiae_47_19 |
| Popis: | Background: Tissue Doppler imaging (TDI) echocardiography, an objective method for the quantification of left ventricular (LV) function, can detect subtle alterations in contractility both in rest and stress echocardiography. Aim: The study aims were to (1) compare TDI parameters in patients with heart failure (HF) of ischemic and nonischemic etiology, (2) to differentiate both subsets based on velocity dispersion index (VDI) at mitral valve, and (3) to identify parameters that help in identifying the ischemic etiology of HF. Materials and Methods: Patients with symptomatic HF (NYHA class ≥II; LV ejection fraction 25.40 (sensitivity 91.7% and specificity 100%), and diastolic VDI, V e' >17.35 (sensitivity 86.7% and specificity 87.5%), were associated with the probability of diagnosing the ischemic cause of HF. Conclusions: VDIs help in the differentiation of ischemic and nonischemic etiologies of HF compared to the conventional echocardiography. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|