Transitional Atrioventricular Septal Defect in a Dog:From Embryological and Terminology Perspectives
10.17555/jvc.2025.42.1.26
- Author:
Minsuk KIM
1
;
Min Woong SEO
;
Chul PARK
Author Information
1. Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Korea
- Publication Type:Case Report
- From:
Journal of Veterinary Clinics
2025;42(1):26-30
- CountryRepublic of Korea
- Language:English
-
Abstract:
A 7-year-old, 2.6 kg, spayed female Maltese dog was referred for suspected congenital heart disease. The clinical signs included tachypnea, mild exercise intolerance, and cyanosis. Following echocardiography, the dog was diagnosed with a transitional atrioventricular septal defect (AVSD). The dog was also diagnosed with pulmonary hypertension due to congenital heart disease, which was likely secondary to volume overload caused by a large atrial septal defect.Management solely with sildenafil alone has produced favorable outcomes. This case report discusses transitional AVSD from the perspectives of terminology and embryology.
