Disorder - Atrial Septal Defect (ASD)

Organ Systems Involved
Cardiovascular

Brief Description

A condition in which a wall separating two of the four chambers in the heart is incomplete, sometimes resulting in abnormal blood flow patterns. Atrial septal defect (ASD) is often present with other abnormalities in the structure of the heart.

Presenting Signs

Atrial septal defect is a condition present at birth in which part of the wall dividing the left and right atrium (two of the four chambers within the heart) is incomplete. In some cases this causes problems as a portion of the oxygenated blood does not flow normally through the heart and into the general circulation but instead flows into the other side of the heart and through the lungs again. Often the dog will not show any symptoms, and the condition may only be detected when abnormal heart sounds are heard through a stethoscope. If symptoms are present these will be difficulty breathing, a reduced ability to exercise and weakness due to the abnormal blood flow.

Groups Affected
Utility


Breeds Affected
Boxer
Samoyed


Treatment

Surgical/Medical

PubMed References
Atrial Septal Defect (ASD)

Further Reference Material [OMIA Number]
89


Contributor
Seng Wai Yap