Abstract
The Congenital heart diseases are characterized by morphological defects in the embryonic development and the most frequent in dogs are: pulmonary and aortic valve stenosis, ventricular septal defect and persistente ductus arteriosus. They may occur asymptomatically or even evolve to congestive heart failure. The definitive diagnosis is made through the visualization of the alterations in the echocardiogram. In the present report, a French Bulldog, three month old, asymptomatic was presented to a private Veterinary practice in Rio de Janeiro, Brazil. Cardiac auscultation evidenced a systolic heart murmur in tricuspid focus and diastolic murmur in pulmonary focus. To better evaluate the dog chest radiography, electrocardiogram and echocardiogram were perfomed and allowed the diagnosis of pulmonary stenosis. The clinical treatment with beta-blocker was installed and the surgical procedure was performed with the ballon valvuloplasty. The aim of this study was to report a case of pulmonary artery stenosis in a puppy, treated clinically and surgically, emphasizing the importance of the physical and complementary cardiological exams.
Highlights
Congenital heart diseases are characterized by cardiac morphological defects in embryonic development
Based on the clinical findings and the diagnosis of pulmonary stenosis, was started the clinical treatment with the administration of beta-blocker, atenolol (0.5mg mg/kg) was instituted as treatment, and the patient was referred to a surgical center where the balloon valvuloplasty was performed
A greater force of contraction and greater ejection of blood from the right ventricle are secondary to hypertrophy and generate greater pressure within the right ventricle, causing blood regurgitation to the right atrium by overcoming resistance of the tricuspid valve, being these phenomena detected in physical examination as a systolic murmur in the tricuspid focus (Kristin, 2006)
Summary
Congenital heart diseases are characterized by cardiac morphological defects in embryonic development. The disease is characterized by a decrease in the pulmonary artery outflow, and may be classified as subvalvar, valvar or supravalvar stenosis (Strickland & Oyama, 2016) Clinical signs such as exercise intolerance, syncope and other signs common to heart failure (CHF) may be present (Tilley & Goodwin, 2002), affected dogs are usually asymptomatic. The aim of this study was to report the case of a three months old French Bulldog with pulmonary valve stenosis undergoing surgical treatment, emphasizing the importance of clinical evaluation and complementary tests for diagnosis. Based on the clinical findings and the diagnosis of pulmonary stenosis, was started the clinical treatment with the administration of beta-blocker, atenolol (0.5mg mg/kg) was instituted as treatment, and the patient was referred to a surgical center where the balloon valvuloplasty was performed. The patient has been asymptomatic from a cardiovascular point of view
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