Surgical Repair of a Complete Endocardial Cushion Defect in a Dog

Authors

  • Shigeki Yamano DVM,

    1. Veterinary Cardiovascular Medicine and Surgery Unit, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
    2. Department of Veterinary Medicine, College of Veterinary Medicine, Kitasato University, Aomori, Japan
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  • Masami Uechi DVM, PhD,

    1. Veterinary Cardiovascular Medicine and Surgery Unit, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
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  • Katsuyuki Tanaka DVM,

    1. Kanie Animal Clinic, Aichi, Japan
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  • Yasutomo Hori DVM, PhD,

    1. Department of Veterinary Medicine, College of Veterinary Medicine, Kitasato University, Aomori, Japan
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  • Takashi Ebisawa DVM,

    1. Veterinary Cardiovascular Medicine and Surgery Unit, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
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  • Kayoko Harada DVM,

    1. Veterinary Cardiovascular Medicine and Surgery Unit, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
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  • Takahiro Mizukoshi DVM

    1. Veterinary Cardiovascular Medicine and Surgery Unit, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Kanagawa, Japan
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Corresponding Author
Masami Uechi, DVM, PhD, Veterinary Cardiovascular Medicine and Surgery, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan
E-mail: uechi.masami@nihon-u.ac.jp.

Abstract

Objective: To describe surgical repair of a complete endocardial cushion defect (ECD) in a dog.

Study Design: Clinical report.

Animal: A 5-month-old, 9.2 kg male Shetland sheepdog.

Methods: Echocardiographic examination revealed an ostium primum atrial septal defect (ASD), an inlet ventricular septal defect (VSD), mitral regurgitation (MR) and tricuspid regurgitation (TR), and a complete ECD was diagnosed. Surgical correction was performed using cardiopulmonary bypass (CPB) via right atriotomy. A polytetrafluoroethylene (PTFE) patch was secured along the margin of the inlet VSD using simple continuous suture, then the cleft in the septal mitral leaflet was sutured. Similarly, the cleft in the septal tricuspid leaflets was sutured. To complete inlet VSD closure, the VSD patch was secured to these sutured leaflets by simple continuous suture. Another PTFE patch was used to close the ostium primum ASD.

Result: After surgery, MR, TR, and interventricular shunting were decreased. The dog was alive 6 years and 5 months after the surgery with no evidence of an interventricular shunt, TR, or other clinical signs.

Conclusions: Complete ECD in a dog was corrected using a 2-patch technique under CPB.

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