Grint K A, Kellihan H B
Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, 2015 Linden Dr. Madison, WI 53706, USA.
Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, 2015 Linden Dr. Madison, WI 53706, USA.
J Vet Cardiol. 2017 Apr;19(2):182-189. doi: 10.1016/j.jvc.2016.09.005. Epub 2016 Nov 30.
A 3-month-old, 9.9 kg, male pit bull cross was referred for evaluation of collapse. A left basilar systolic heart murmur graded V/VI and a grade IV/VI right basilar systolic heart murmur were ausculted. Echocardiography showed severe pulmonic stenosis characterized by annular hypoplasia, leaflet thickening, and leaflet fusion. After 1 month of atenolol therapy, a pulmonic valve balloon valvuloplasty procedure was performed, and the intra-operative right ventricular pressure was reduced by 43%. Echocardiography, performed the following day, showed apparent rupture of a pulmonary valve leaflet and a membranous structure within the pulmonary artery consistent with a dissecting membrane. Short-term follow-up has shown no apparent progression of the pulmonary artery dissection and the patient remains free of clinical signs.
一只3个月大、体重9.9千克的雄性比特斗牛杂交犬因虚脱前来评估。听诊发现左基底收缩期心脏杂音为V/VI级，右基底收缩期心脏杂音为IV/VI级。超声心动图显示严重肺动脉狭窄，特征为瓣环发育不全、瓣叶增厚和瓣叶融合。在接受1个月的阿替洛尔治疗后，进行了肺动脉瓣球囊瓣膜成形术，术中右心室压力降低了43%。术后第二天进行的超声心动图显示肺动脉瓣叶明显破裂，肺动脉内有一个与夹层膜相符的膜状结构。短期随访显示肺动脉夹层无明显进展，患者仍无临床症状。
