Newhard D K, Jung S W, Winter R L, Kuca T, Bayne J, Passler T
Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, USA.
Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, USA.
J Vet Cardiol. 2017 Apr;19(2):205-210. doi: 10.1016/j.jvc.2016.11.002. Epub 2017 Jan 19.
A 3-day-old Hereford heifer calf presented for evaluation of lethargy and dyspnea, with persistent hypoxia despite supplemental oxygen therapy. A grade III/VI right apical systolic murmur was noted during cardiac auscultation. Echocardiography revealed a double-outlet right ventricle with an intact interventricular septum and concurrent hypoplastic left ventricle and tricuspid valve dysplasia. Post-mortem examination revealed additional congenital anomalies of ductus arteriosus, patent foramen ovale, and persistent left cranial vena cava. This report illustrates the use of echocardiographic images to diagnose a double-outlet right ventricle with an intact interventricular septum and a hypoplastic left ventricle in a calf.
一头3日龄的赫里福德小母牛犊因嗜睡和呼吸困难前来评估，尽管进行了补充氧气治疗，但仍持续存在低氧血症。心脏听诊时发现右心尖有III/VI级收缩期杂音。超声心动图显示右心室双出口，室间隔完整，同时左心室发育不全和三尖瓣发育异常。尸检发现动脉导管、卵圆孔未闭和左头臂静脉持续存在等其他先天性异常。本报告说明了如何使用超声心动图图像诊断小牛的右心室双出口、室间隔完整和左心室发育不全。
