Pinkos A, Stauthammer C, Rittenberg R, Barncord K
University of Minnesota, College of Veterinary Medicine, 1365 Gortner Avenue, Minneapolis, MN, 55108, USA.
University of Minnesota, College of Veterinary Medicine, 1365 Gortner Avenue, Minneapolis, MN, 55108, USA.
J Vet Cardiol. 2017 Feb;19(1):88-94. doi: 10.1016/j.jvc.2016.08.007. Epub 2016 Oct 30.
A 6-month-old female intact Goldendoodle was presented for diagnostic work up of a grade IV/VI left basilar systolic heart murmur. An echocardiogram was performed and revealed a ridge of tissue distal to the aortic valve leaflets at the sinotubular junction causing an instantaneous pressure gradient of 62 mmHg across the supravalvular aortic stenosis and moderate concentric hypertrophy of the left ventricle. Intervention with a high-pressure balloon dilation catheter was pursued and significantly decreased the pressure gradient to 34 mmHg. No complications were encountered. The patient returned in 5 months for re-evaluation and static long-term reduction in the pressure gradient was noted.
一只6个月大的未绝育雌性金毛寻回犬与贵宾犬的杂交犬因IV/VI级左基底收缩期心脏杂音前来进行诊断检查。进行了超声心动图检查，结果显示在主动脉窦管交界处的主动脉瓣叶远端有一条组织嵴，导致跨瓣上主动脉狭窄的瞬间压力梯度为62毫米汞柱，左心室有中度同心性肥厚。采用高压球囊扩张导管进行干预，压力梯度显著降至34毫米汞柱。未出现并发症。患者在5个月后复诊，压力梯度持续长期降低。
