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- Title
Jet Length/Velocity Ratio: A New Index for Echocardiographic Evaluation of Chronic Aortic Regurgitation.
- Authors
Güvenç, Tolga Sinan; Karaçimen, Denizhan; Erer, Hatice Betül; İlhan, Erkan; Sayar, Nurten; Karakuş, Gültekin; Çekirdekçi, Elif; Eren, Mehmet
- Abstract
Background Management of aortic regurgitation depends on the assessment for severity. Echocardiography remains as the most widely available tool for evaluation of aortic regurgitation. In this manuscript, we describe a novel parameter, jet length/velocity ratio, for the diagnosis of severe aortic regurgitation. Methods and Results A total of 30 patients with aortic regurgitation were included to this study. Severity of aortic regurgitation was assessed with an aortic regurgitation index incorporating five echocardiographic parameters. Jet length/velocity ratio is calculated as the ratio of maximum jet penetrance to mean velocity of regurgitant flow. Jet length/velocity ratio was significantly higher in patients with severe aortic regurgitation (2.03 ± 0.53) compared to patients with less than severe aortic regurgitation (1.24 ± 0.32, P < 0.001). Correlation of jet length/velocity ratio with aortic regurgitation index was very good (r2 = 0.86) and correlation coefficient was higher for jet length/velocity ratio compared to vena contracta, jet width/ LVOT ratio and pressure half time. For a cutoff value of 1.61, jet length/velocity ratio had a sensitivity of 92% and specificity of 88%, with an AUC value of 0.955. Conclusions Jet length/velocity ratio is a novel parameter that can be used to assess severity of chronic aortic regurgitation. Main limitation for usage of this novel parameter is jet impringement to left ventricular wall.
- Subjects
AORTIC valve insufficiency treatment; AORTIC valve insufficiency; STATISTICAL correlation; ECHOCARDIOGRAPHY; FISHER exact test; REGRESSION analysis; RESEARCH evaluation; STATISTICS; DATA analysis; SEVERITY of illness index; RECEIVER operating characteristic curves; DATA analysis software; DESCRIPTIVE statistics; MANN Whitney U Test
- Publication
Echocardiography, 2015, Vol 32, Issue 1, p3
- ISSN
0742-2822
- Publication type
Article
- DOI
10.1111/echo.12698