CardioVascular

CardioVascular

Chemodectoma

Chemodectomas are heart based tumors: in the chambers of the heart – aortic tumors Not a “malignant” cancer. These develop due to lack of oxygen over a lifetime. The body itself can further the growth of them by adding scar tissue over the original tumor. Death is often caused by heart failure rather than Metastasis. In general, chemodectomas only occur in 1% of dogs and are considered extremely rare. brachycephalic breeds seem to be overrepresented, likely due to chronic hypoxia caused by boas. In one recent study of 9 dogs, 8 were brachy breeds. (88% higher incidence) Hypoxia is a state in which oxygen is not available in sufficient amounts at the tissue level to maintain adequate homeostasis; meaning: due to BOAS, brachycephalic dogs do not get enough oxygen symptoms: exercise intolerance, cough, lethargy, anorexia, inappetence, collapse, and arrhythmias dx by echocardigram Treatment: surgical excision of the tumor is difficult given its location, vascularization and the clinical and the anatomical requirements Traditional chemo can be tried. Most oncologists will treat for the heart conditions happening, knowing the tumor itself cannot be cured. https://actavetscand.biomedcentral.com/articles/10.1186/1751-0147-52-35 https://stud.epsilon.slu.se/2545/1/Eriksson_m_110502.pdf

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