Echocardiographic diagnosis of aorto-left ventricular tunnel with supravalvular pulmonic stenosis in a Shih-tzu dog

Daji Noh, Hyun Guk Shin, Sooyoung Choi, Hojung Choi, Youngwon Lee, Kija Lee

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The aorto-left ventricular tunnel (ALVT) is a congenital extracardiac channel that connects the ascending aorta to the left ventricle. Case Description: A 2-year-old Shih-tzu dog presented with mild exercise intolerance. Echocardiography revealed an abnormal slit-like tunnel structure connecting the ascending aorta to the left ventricle, with diastolic blood flow from the aorta to the left ventricle. Echogenic membranous stenosis was observed in the main pulmonary artery. Based on these findings, the dog was diagnosed with ALVT and type I supravalvular pulmonic stenosis. Conclusion: This is the first case report of ALVT in veterinary medicine that describes diagnostic imaging findings. ALVT should be considered in dogs with an aortic regurgitation murmur and can be detected by echocardiography.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalOpen Veterinary Journal
Volume13
Issue number2
DOIs
StatePublished - 2023

Keywords

  • Aortoventricular tunnel
  • Congenital heart disease
  • Dog
  • Echocardiography
  • Pulmonic stenosis

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