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KMID : 1094020200370040185
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Journal of Veterinary Clinics
2020 Volume.37 No. 4 p.185 ~ p.190
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Determination of Tricuspid Regurgitation Velocity/Pulmonary Artery Flow Velocity Time Integral in Dogs with Pulmonary Hypertension
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Kim Seung-Ji
Oh Da-Young
Lee Si-Heon
Hong Sung-Kyun
Choi Min-Cheol
Yoon Jung-Hee
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Abstract
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This retrospective, echocardiographic study using 144 dogs with clear systolic tricuspid regurgitation on Doppler echocardiography was performed to determine the diagnostic value of the systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral to predict the Doppler estimates of dogs with tricuspid regurgitation pressure gradient compared with other cardiac indices of pulmonary hypertension, and to investigate a cutoff value to select patients with a potentially poor outcome. The systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral increased significantly as the severity of pulmonary hypertension increased and had a correlation coefficient that was analogous to those of other conventional cardiac indices. A cutoff value greater 1.65 provided the best-balanced sensitivity (84%) and specificity (80%) in determining patients with a poor prognosis. In conclusion, the systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral is readily obtained using routine echocardiography and could provide a non-invasive, novel, and supplementary index for evaluating dogs with pulmonary hypertension as useful prognostic criteria, particularly in those with advanced pulmonary hypertension.
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KEYWORD
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dog, echocardiography, pulmonary artery flow velocity time integral, tricuspid regurgitation velocity
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