Myocarditis in Dogs and Cats
Though treatment protocols are lacking, anti-trypanosomal and anti-arrhythmic medication would be indicated at this stage. An asymptomatic latent phase then develops for 27-120 days in dogs, followed by a chronic stage demonstrating systolic dysfunction indistinguishable from dilated cardiomyopathy.
Relevance and novel information This case report summarises an unusual case of FIP as the putative cause of myocarditis in a cat. Although acute myocarditis has been well described in people as a cardiovascular complication of systemic coronavirus disease (COVID-19), this is the first suspected ante-mortem diagnosis in a cat with FIP.

PDF An update on the treatment of feline infectious peritonitis
Cats with FIP can present with elevations in serum cardiac troponin and wall thickening on echocardiography, both of which could be suggestive of myocarditis and/or myocardial injury; however, antiviral therapy may reduce active myocarditis in cats with FIP and most of these cats have normal troponin levels at the end of the therapy.

Feline infectious peritonitis (FIP) caused by feline coronavirus (FCoV) is a fatal disease in cats characterized by variable manifestations. Myocarditis represents a less commonly described pathology within the clinical spectrum of FIP. No research has described the successful treatment of FIP-induced myocarditis . In this study, 40 cats were included and treated with 15 mg/kg of GS-441524 ...
Myocarditis in cats is an inflammation of the heart muscle that impairs the heart's ability to pump effectively. This disease can be acute or chronic and has serious health consequences. The most common causes are infections caused by viruses such as Feline Coronavirus or Feline Immunodeficiency Virus, bacteria, parasites like heartworms, or fungi. Immune-mediated processes, toxic reactions ...

Conditions that are known to mimic HCM include chronic hypertension, hyperthyroidism, moderate-severe dehydration, mitral valve anomalies creating outflow obstruction and myocarditis . These conditions require different treatment approaches and confer different risks to HCM.
Additional Notes on Feline Chronic Myocarditis Treatment Protocol
Paradigm shift in myocarditis treatment - Journal of Cardiology. This note connects the source idea with the visuals in a simple, reader-friendly way.
Update on Myocarditis and Inflammatory Cardiomyopathy: Reemergence of. This note connects the source idea with the visuals in a simple, reader-friendly way.
Management of Myocarditis-Related Cardiomyopathy in Adults. This note connects the source idea with the visuals in a simple, reader-friendly way.
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