Peer-reviewed veterinary case report
Two dogs with adrenal tumors and severe heart block
By Mak, Genevieve & Allen, Justin·Published in Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)·2013·VCA California Animal Hospital Veterinary Specialty Group, United States·View original on PubMed →
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Original publication title: Simultaneous pheochromocytoma and third-degree atrioventricular block in 2 dogs.
- Species:
- dog
Plain-English summary
Two dogs were brought in for serious heart issues, specifically a complete heart block, which can cause fainting and weakness. During tests, one dog was found to have an adrenal tumor, while the other had tumors on both adrenal glands. Unfortunately, one dog suffered a cardiac arrest and could not be saved, while the other was gently put to sleep due to the severity of its condition. Both tumors were identified as pheochromocytomas, which are rare adrenal tumors that can affect heart function.
People also search for: dog heart block symptoms · pheochromocytoma in dogs · dog adrenal tumor treatment
Abstract
OBJECTIVE: To describe the occurrence of pheochromocytoma with third-degree atrioventricular (AV) block in 2 dogs. CASE SERIES SUMMARY: Two dogs were referred for echocardiograms and further diagnostic and therapeutic treatment for third-degree AV block. Abdominal ultrasound of 1 dog revealed an adrenal mass, while that of the other dog revealed bilateral adrenal masses. While undergoing treatment, 1 dog experienced cardiac arrest and could not be revived with cardiopulmonary resuscitation, and the other dog was humanely euthanized. Histological findings of the masses were consistent with pheochromocytomas. NEW OR UNIQUE INFORMATION PROVIDED: To the authors' knowledge, this is the first report with histologic evidence of pheochromocytoma and clinical presentation of third-degree AV block in dogs. In human literature, simultaneous presentation of both disease states is rare and has been infrequently reported.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24102992/