Peer-reviewed veterinary case report
Right pulmonary artery stretch predicts survival in dogs with lung
By Chan, I Ping et al.·Published in Journal of veterinary science·2019·Veterinary Medical Teaching Hospital·View original on PubMed →
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Original publication title: Prognostic value of right pulmonary artery distensibility in dogs with pulmonary hypertension.
- Species:
- dog
Plain-English summary
A study looked at dogs with pulmonary hypertension (PH), a condition that can be caused by heartworm or other heart issues. Researchers found that a measurement called the right pulmonary artery distensibility (RPAD) index could help predict how long these dogs might live. Dogs with a lower RPAD index had shorter survival times, indicating that this measurement could be useful for vets in assessing the severity of PH. This means that if your dog has been diagnosed with PH, your vet might use the RPAD index to better understand their condition and prognosis.
People also search for: dog pulmonary hypertension treatment · heartworm infection in dogs · how to manage dog heart problems
Abstract
The right pulmonary artery distensibility (RPAD) index has been used in dogs with pulmonary hypertension (PH) caused by heartworm infection, myxomatous mitral valve disease, or patent ductus arteriosus. We hypothesized that this index correlates with the tricuspid regurgitation pressure gradient (TRPG) assessed by echocardiography and could predict survival in dogs with PH secondary to various causes. To assess this hypothesis, the medical records of 200 client-owned dogs at a referral institution were retrospectively reviewed. The RPAD index and the ratios of acceleration time to peak pulmonary artery flow (AT) and to the ejection time of pulmonary artery flow (ET) were recorded for each dog. The owners were contacted for follow-up assessments. The findings indicated that the RPAD index was correlated with the TRPG (R² = 0. 362,< 0.001). The survival time was significantly shorter in dogs with an RPAD index ≤ 21% that were followed up for 3 months and in dogs with an RPAD index ≤ 24% that were followed up for 1 year. Thus, the RPAD index was correlated with the TRPG and could predict the clinical outcome in dogs with PH caused by various diseases. This index could be used to evaluate the severity of PH in dogs without tricuspid regurgitation.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/31364319/