Double-outlet right atrium in a 9 year-old cat

Area of Science:

• Veterinary Cardiology
• Congenital Heart Disease
• Echocardiography

Background:

• Double-outlet right atrium (DORA) is a rare atrioventricular septal defect.
• Characterized by leftward deviation of the interatrial septum, leading to abnormal mitral valve positioning.
• Previously documented in humans and recently identified in felines.

Observation:

• A 9-year-old cat presented with tachyarrhythmia and cardiomegaly.
• Transthoracic echocardiography was utilized for diagnostic evaluation.
• The study identified DORA as the underlying cardiac anomaly.

Findings:

• Detailed diagnostic findings of DORA in the feline patient.
• Echocardiographic evidence confirmed the anatomical abnormalities.
• The report correlates findings with clinical presentation.

Implications:

• Enhances understanding of DORA in veterinary medicine.
• Provides insights into the diagnosis and management of congenital heart defects in cats.
• Contributes to the limited literature on feline cardiovascular anomalies.