VASCULAR RING ANOMALIES

1
VASCULAR RING ANOMALIES
2
What is the most common type of vascular ring
anomaly?

• Persistent right aortic arch with persistent left
  ligamentum arteriosuim

3
What other anomaly is also present about half of
the time?

• Persistent left anterior vena cava

4
What clinical problem does this type of vascular
ring anomaly cause?

• Strangulated esophagus at the base of the heart

5
Describe a typical patient with the most common
type of vascular ring anomaly signalment,
history, clinical findings.

• Signalment GSD or siamese/persian postweaning
• History postprandial regurgitation in post
  weaning puppies and kittens
• Clinical findings emaciation, resp signs
  secondary to aspiration pneumonia (no cardiac
  murmur)

6
Describe a typical patient with the most common
type of vascular ring anomaly laboratory
findings, and radiographic findings.

• Lab findings hypoalbuminemia, elevated WBC w
  aspiration pneumonia
• Rad findings ventral tracheal displacement,
  mediastinal widening, dilated cranial thoracic
  esophagus

7
What is the treatment and prognosis for this
patient?

• Tx
• Surgical ligation and division of vascular ring
• Prognosis
• Megaesophagus rarely completely reversed (more
  likely with early surgery)