A 9-month-old intact male Ragdoll cat was presented for evaluation of a left-sided systolic murmur that was first auscultated during examination for a newly developed cough. Transthoracic echocardiography revealed a narrowed left pulmonary artery and an increase in flow velocities at the level of the narrowing, consistent with left pulmonary artery branch stenosis. The right pulmonary artery appeared normal. Balloon angioplasty was performed and successfully reduced pressure gradient across the stenosis. The patient continues to do well 14 months after the procedure.

中文翻译：

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成功对单侧左肺动脉分支狭窄的猫进行球囊血管成形术

一只 9 个月大的完整雄性布偶猫被送去评估左侧收缩期杂音，该杂音是在检查新出现的咳嗽时首次听诊的。经胸超声心动图显示左肺动脉狭窄，狭窄处血流速度增加，与左肺动脉分支狭窄一致。右肺动脉看起来正常。进行了球囊血管成形术并成功降低了狭窄处的压力梯度。手术后 14 个月，患者状况依然良好。