Single left coronary ostium with a prepulmonic right coronary artery course in a French Bulldog with congenital valvular pulmonary stenosis

2021 
ABSTRACT A two year old, male castrated, French bulldog was presented for evaluation of coronary artery anatomy prior to balloon valvuloplasty for severe pulmonic valve stenosis. Multi-detector computed tomography angiography showed a single left coronary ostium, absent right coronary ostium, and an anomalous, pre-pulmonic coursing right coronary artery. Medical management was elected to avoid the attendant risk associated with intervention. This case report documented the first known case of this specific anomaly in French bulldogs. Veterinary cardiologists should be aware of the potential for this specific coronary artery anomaly in this breed, given the predilection for the development of pulmonary stenosis. Routine screening of French bulldogs for anomalous, pre-pulmonic coronary arteries is recommended prior to interventional balloon valvuloplasty.
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