Balloon Valvuloplasty in a Dog with Severe Pulmonic Stenosis and Ventricular Septal Defect

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  • MOSAKI Utosa
    Department of Cardiology, Teaching Animal Hospital, Azabu University
  • FUJII Yoko
    Department of Cardiology, Teaching Animal Hospital, Azabu University Laboratory of Surgery, Azabu University
  • SUNAHARA Hiroshi
    Department of Cardiology, Teaching Animal Hospital, Azabu University Laboratory of Surgery, Azabu University
  • TAKANO Hiroshi
    School of Veterinary Medicine, Rakuno Gakuen University
  • AOKI Takuma
    Department of Cardiology, Teaching Animal Hospital, Azabu University Laboratory of Surgery, Azabu University

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  • 心室中隔欠損症が合併した重度肺動脈弁狭窄症に対しバルーン弁口拡大術を実施した犬の1例
  • シンシツ チュウカクケッソンショウ ガ ガッペイ シタ ジュウド ハイ ドウミャクベン キョウサクショウ ニ タイシ バルーン ベンコウ カクダイジュツ オ ジッシ シタ イヌ ノ 1レイ

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Abstract

A 3-month-old Italian Greyhound was referred because of a cardiac murmur. Echocardiography revealed severe valvular pulmonic stenosis (PS, pulmonary artery velocity: 7.15 m/s, estimated pressure gradient across the pulmonic valve: 204.5 mmHg) and muscular ventricular septal defect (VSD) shunting from right to left (R-L) due to increased right ventricular systolic pressure. The oxygen saturation was 93%. Percutaneous balloon valvuloplasty was selected as a treatment because the PS was critical. It was successfully performed, and the right ventricular pressure overload was dramatically decreased. The VSD shunting changed from R-L to L-R. The oxygen saturation also improved to 100%. Eighteen months after the procedure at this point, the dog is doing well without showing any signs of left ventricular volume overload due to VSD.

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