OSTIUM SECUNDUM TYPE INTERATRIAL COMMUNICATION IN DOG

Resumo

Interatrial communication is a congenital heart disease rarely diagnosed in veterinary clinics. This case describes the atrial septal defect in a two years old female dog, from Yorkshire race, treated at Veterinary Hospi­tal of Inga - Uninga University Center, where the owner reporter that the animal had in­termittent coughing episodes, exercise intole­rance and syncope. During the clinical exami­nation was observed cyanotic mucous, on the cardiac auscultation regular cardiac rhythm with discreet systolic murmur. The animal was sent to complementary tests, chest ra­diography, electrocardiogram and echocar­diogram. The chest radiography test verified a right atrium increase, the doppler-echocar- diograph test demonstrated an interatrial communication of ostium secundum type me­asuring approximately 0.41 cm in longitudi­nal axis. The performance of complementary tests such as X-ray, electrocardiogram and echocardiogram, are essential for diagnosis, the disease in question only diagnosed after the echocardiogram. No treatment was per­formed because the animal showed inter­mittent clinical signs, without other signs of cardiac insufficiency. The owner was instruc­ted to observe the clinical signs and return to six-monthly evaluations. After six months, the radiographic assessment data remained, there were no notable changes, showing the progression of the cardiopathy.