Goya Seijirow, Wada Tomoki, Shimada Kazumi, Uemura Akiko, Tanaka Ryou
Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan.
J Vet Med Sci. 2018 Nov 23;80(11):1754-1757. doi: 10.1292/jvms.18-0060. Epub 2018 Sep 20.
A 7-year-old Miniature Schnauzer presented with exercise intolerance and easy fatigability. Echocardiography revealed the presence of supravalvular pulmonary stenosis. The peak velocity through the stenosis was 6.4 m/sec, and the interventricular septum was flattened. Cutting balloon angioplasty was designed for the treatment of coronary artery stenosis, which was resistant to conventional balloon angioplasty. Accordingly, the dog underwent cutting balloon angioplasty and conventional balloon dilation. One month after treatment, it showed neither exercise intolerance nor easy fatigability. The ventricular septum flattening disappeared. Five months later, the dog showed an increase in activity. Two years later, the peak velocity through the stenosis decreased to 4.4 m/sec. Neither clinical symptoms nor restenosis was observed. Thus, supravalvular pulmonary stenosis was successfully treated using this combination method. The present case showed that combined cutting balloon and conventional balloon angioplasty is a useful and minimally invasive treatment for supravalvular pulmonary stenosis.
一只7岁的迷你雪纳瑞犬出现运动不耐受和易疲劳症状。超声心动图显示存在肺动脉瓣上狭窄。通过狭窄处的峰值流速为6.4米/秒，室间隔扁平。切割球囊血管成形术最初是设计用于治疗对传统球囊血管成形术有抵抗的冠状动脉狭窄。因此，这只狗接受了切割球囊血管成形术和传统球囊扩张术。治疗一个月后，它既没有运动不耐受也没有易疲劳症状。室间隔扁平消失。五个月后，这只狗的活动能力增强。两年后，通过狭窄处的峰值流速降至4.4米/秒。未观察到临床症状和再狭窄。因此，使用这种联合方法成功治疗了肺动脉瓣上狭窄。本病例表明，切割球囊与传统球囊血管成形术联合应用是治疗肺动脉瓣上狭窄的一种有用且微创的治疗方法。
