Articles by Carl D. Sammarco, BvSc, MRCVS, DACVIM - DVM
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Carl D. Sammarco, BvSc, MRCVS, DACVIM


Articles
Breed-specific variations of cardiomyopathy in dogs
February 1, 2008

Cardiomyopathy in dogs encompasses a wide spectrum of diseases, ranging from systolic and diastolic dysfunction to various arrhythmias.

Thoracoscopic partial pericardectomy in the dog
November 1, 2006

Pericardial effusion presents clinicians with a challenge when diagnosing the underlying cause, since the prognosis can be favorable in certain cases. Partial pericardectomy can be performed via thoracoscopy; and in select cases, this minimally invasive procedure can provide long-term relief of clinical signs.

Tracheal collapse frustrating; minimally invasive tehniques promising
June 1, 2006

Most commonly, tracheal collapse occurs in middle-aged to old dogs including Yorkshire terriers, Pugs, Chihuahuas, Pomeranians, Maltese, as well as Miniature and Toy Poodles.

CVD remains most common cardiac disease in small, medium-sized dogs
May 1, 2006

Chronic valve disease (CVD), also called mitral valve disease or endocardiosis, is the most common form of acquired cardiac disease diagnosed in small- and medium-sized dogs. The mitral valve alone is affected in 60 percent of cases of chronic valve disease, whereas only the tricuspid valve is affected in 10 percent of cases. Thirty percent will have both the tricuspid and mitral valves affected. Endocardiosis is an age-related thickening of the mitral valve due to fibroblast proliferation and an increase in collagen and elastic fibers. The thickening of the mitral valve allows a regurgitant volume of blood to be forced from the high-pressure left ventricle into the low-pressure left atrium during systole. Over time, regurgitation can lead to progressive atrial and ventricular enlargement due to volume overload. Severe mitral regurgitation can lead to left-sided congestive heart failure and pulmonary edema formation. Long-term severe mitral regurgitation can lead to generalized heart failure. Right heart..

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