Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Determination of Tricuspid Regurgitation Velocity/Pulmonary Artery Flow Velocity Time Integral in Dogs with Pulmonary Hypertension

  • Kim, Seungji (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Oh, Dayoung (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Lee, Siheon (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Hong, Sungkyun (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Choi, Mincheol (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Yoon, Junghee (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University)
  • Received : 2020.05.27
  • Accepted : 2020.08.11
  • Published : 2020.08.31
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Abstract

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.

Keywords

References

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