Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review
| Autor: | Keiichi Sato, Isamu Kanemoto, Kippei Mihara |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Heart disease medicine.medical_treatment Toy and small dogs Review Article law.invention Mitral valve plasty Dogs Species Specificity law Internal medicine Mitral valve Human medicine medicine Cardiopulmonary bypass Animals Dog Diseases Cardiac Surgical Procedures Open-heart techniques Mitral regurgitation General Veterinary business.industry Mitral valve replacement Mitral Valve Insufficiency Hypothermia medicine.disease Direct scallop-suture valvuloplasty medicine.anatomical_structure QL1-991 Cardiology Mitral Valve medicine.symptom business Zoology Mitral valve surgery |
| Zdroj: | Open Veterinary Journal Open Veterinary Journal, Vol 11, Iss 1, Pp 14-26 (2021) |
| ISSN: | 2218-6050 2226-4485 |
| Popis: | In human medicine, in the past, open-heart techniques for low-bodyweight children and newborn babies with congenital heart disease were more difficult than high-bodyweight adults. In toy- and small-breed dogs with mitral regurgitation (MR), an acquired heart disease, these techniques are more difficult to perform than for congenital heart diseases in young medium-sized or large dogs because of old age and low body weight. Therefore, improved open-heart techniques and mitral valve surgery for severe MR in older toy- and small-breed dogs are essential. Through our surface-cooling hypothermia (sHT) studies, we designed a new, improved open-heart method, namely, “the low-flow cardiopulmonary bypass (CPB) combined with deep sHT in toy- and small-breed dogs (Japan method)”; sHT was later replaced by blood-cooling hypothermia (bHT). At the same time, we devised a new, improved mitral valve plasty (MVP) applicable to severe MR, instead of mitral valve replacement, in toy- and small-breed dogs. This MVP technique was combined with artificial chordal reconstruction, semi-circular suture annuloplasty (AP), and direct scallop-suture valvuloplasty. These MVP techniques are simple, durable, and lead to good long-term quality of life in toy- and small-breed dogs. This review highlights the benefits of our improved CPB and MVP techniques (Japan method) for severe MR in toy-and small-breed dogs, which have led to a high success rate for MVP in severe clinical MR cases in Japan. It may further contribute to the development of more robust techniques for MR in toy- and small-breed dogs. This also represents the first comprehensive review of the history of open-heart surgery, CPB techniques, and MVP methods for MR in toy- and small-breed dogs. |
| Databáze: | OpenAIRE |
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