Department of Small Animal Clinical Sciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
Department of Small Animal Clinical Sciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
J Vet Cardiol. 2023 Aug;48:31-36. doi: 10.1016/j.jvc.2023.05.006. Epub 2023 May 25.
A three-year-old, spayed female, Bichon Frise was diagnosed with an anomalous origin of the left coronary artery from the pulmonary artery, a rare congenital coronary artery defect which has only been reported in two other dogs. Echocardiography was initially performed, though the final diagnosis was made with angiography and computed tomography angiography. An extensive network of collateral coronary circulation allowed for communication between the dilated, tortuous right coronary artery, and the anomalous left coronary artery. Though collateral circulation likely prolonged the patient's life, it is suspected that coronary steal phenomenon and chronic myocardial ischemia ultimately led to fatal ventricular arrhythmias. The dog died suddenly at the age of six, three years after initial diagnosis.
一只三岁、已绝育的雌性比熊犬被诊断出患有左冠状动脉异常起源于肺动脉，这是一种罕见的先天性冠状动脉缺陷，仅在另外两只狗中报道过。最初进行了超声心动图检查，但最终的诊断是通过血管造影和计算机断层血管造影做出的。广泛的侧支冠状循环允许扩张、扭曲的右冠状动脉与异常的左冠状动脉之间进行沟通。尽管侧支循环可能延长了患者的生命，但怀疑冠状窃血现象和慢性心肌缺血最终导致致命的室性心律失常。这只狗在最初诊断后的三年，即 6 岁时突然死亡。
