A Canine Case of Subvalvular Pulmonic Stenosis

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  • ASANO Kazushi
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University
  • OKUMURA Masahiro
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University
  • MIYAMOTO Toru
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University
  • MORI Takashi
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University
  • KADOSAWA Tsuyoshi
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University
  • FUJINAGA Toru
    Laboratory of Veterinary Surgery, Department of Veterinary Clinical Scienses, Graduate School of Veterinary Medicine, Hokkaido University

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Other Title
  • バルーン肺動脈弁形成術により臨床症状の改善をみた犬の肺動脈弁下狭窄の1例
  • バルーン ハイ ドウミャクベン ケイセイジュツ ニ ヨリ リンショウ ショウジ
  • Clinically Improved after Balloon Pulmonary Valvuloplasty

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Abstract

A 6-month-old female Alaskan Malamute with ascites retention was found by combined echocardiography to have severe subvalvular pulmonic stenosis, moderate tricuspid regurgitation, mild subvalvular aortic stenosis and mild aortic regurgitation. Because the clinical manifestations were considered to be due to severe subvalvular pulmonic stenosis with infundibular hypertrophy, balloon pulmonary valvuloplasty was performed using the INOUE balloon technique. Ascites retention slowed down and the quality of life was improved after the operation, and at 18 months postoperation the instantaneous pressure gradient between the right ventricle and pulmonary artery remained stable at approximately 60 mmHg while 102 mmHg before operation.

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