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Peer-reviewed veterinary case report

Right-sided heart failure reversed after adrenal tumor surgery

By Haynes, M B et al.·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2024·Department of Small Animal Medicine and Surgery, United States·View original on PubMed

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Original publication title: Reversible right-sided congestive heart failure secondary to primary hyperaldosteronism in a cat.

Species:
cat

Plain-English summary

A 10-year-old male Somali cat was brought in showing signs of severe high blood pressure and low potassium levels, along with some neurological issues. Tests revealed a mass on the left adrenal gland, which was causing excessive production of a hormone linked to heart problems. The cat was diagnosed with right-sided congestive heart failure and underwent surgery to remove the adrenal mass. After the surgery, the cat's heart function improved significantly, returning to normal within six months.

People also search for: cat high blood pressure treatment · Somali cat heart failure symptoms · adrenal gland surgery in cats

Abstract

A 10-year-old male castrated Somali cat presented with neurologic signs, severe systemic hypertension, and hypokalemia. Abdominal ultrasonography demonstrated a left adrenal mass, and the serum aldosterone concentration was increased. Computed tomography and follow-up diagnostic testing confirmed a left adrenal mass consistent with functional adenocarcinoma; additional findings included chronic airway and parenchymal disease. Transthoracic echocardiography revealed biatrial enlargement, with abdominal and pericardial effusion, consistent with right-sided congestive heart failure. The cat was treated for congestive heart failure and adrenalectomy was performed. Cardiac structure and function returned to normal within 6 months postoperatively. This report highlights a case of reversible congestive heart failure secondary to primary hyperaldosteronism.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39128413/