Peer-reviewed veterinary case report
Ultrasound shows liver vein changes in dogs with tricuspid valve leak
By Kim, Jaehwan et al.Ā·Published in Journal of veterinary scienceĀ·2017Ā·Department of Veterinary Radiology and Diagnostic Imaging, South KoreaĀ·View original on PubMed ā
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Original publication title: Pulsed-wave Doppler ultrasonographic evaluation of hepatic vein in dogs with tricuspid regurgitation.
- Species:
- dog
Plain-English summary
A group of dogs with tricuspid regurgitation (a heart valve problem) underwent a special ultrasound test to measure blood flow in their hepatic veins (veins that carry blood from the liver). The study found that certain measurements from this test, particularly the S/D ratio (a comparison of two types of blood flow waves), could help determine how severe the heart condition was. This method showed good accuracy in identifying significant tricuspid regurgitation, which can help veterinarians assess and manage affected dogs more effectively.
People also search for: dog heart valve problems Ā· tricuspid regurgitation in dogs Ā· ultrasound for dog heart disease
Abstract
This study was performed to identify the relationships between hepatic vein (HV) measurements, including flow velocity and waveform, using pulsed-wave (PW) Doppler ultrasonography, and the severity of tricuspid regurgitation (TR) in dogs. The study included 22 dogs with TR and 7 healthy dogs. The TR group was subdivided into 3 groups according to TR jet profile obtained by echocardiography. The hepatic venous waveform was obtained and classified into 3 types. A variety of HV measurements, including the maximal velocities of the atrial systolic, systolic (S), end ventricular systolic, and diastolic (D) waves and the ratio of the S- and D- wave velocities (S/D ratio), were acquired. TR severity was significantly correlated with the S- (= -0.380,= 0.042) and D- (= 0.468,= 0.011) wave velocities and the S/D ratio (= -0.747,＜ 0.001). Receiver operating characteristic curve analysis revealed the highest sensitivity and specificity for the S/D ratio (89% and 75%, respectively) at a threshold of 0.97 with excellent accuracy (AUC = 0.911,＜ 0.001). In conclusion, PW Doppler ultrasonography of the HV can be used to identify the presence of significant TR and to classify TR severity in dogs.
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Search related cases āOriginal publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/27515264/