E-ISSN 2218-6050 | ISSN 2226-4485
 

Review Article


Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review

Isamu Kanemoto, Kippei Mihara, Keiichi Sato.


Cited By:10

Abstract
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. At the same time, we devised a new, improved mitral valve plasty (MVP) applicable to severe MR, instead of mitral valve replacement (MVR), in toy- and small-breed dogs. This MVP technique was combined with artificial chordal reconstruction, semi-circular suture annuloplasty, and direct scallop-suture valvuloplasty. These MVP techniques are simple, durable, and lead to good long-term QOL 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.

Key words: direct scallop-suture valvuloplasty, mitral regurgitation, mitral valve plasty, open-heart techniques, toy and small dogs


 
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How to Cite this Article
Pubmed Style

IK, Mihara K, Sato K. Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Vet J. 2021; 11(1): 14-26. doi:10.4314/ovj.v11i1.4


Web Style

IK, Mihara K, Sato K. Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. https://www.openveterinaryjournal.com/?mno=31 [Access: June 04, 2024]. doi:10.4314/ovj.v11i1.4


AMA (American Medical Association) Style

IK, Mihara K, Sato K. Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Vet J. 2021; 11(1): 14-26. doi:10.4314/ovj.v11i1.4



Vancouver/ICMJE Style

IK, Mihara K, Sato K. Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Vet J. (2021), [cited June 04, 2024]; 11(1): 14-26. doi:10.4314/ovj.v11i1.4



Harvard Style

, I. K., Mihara, . K. & Sato, . K. (2021) Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Vet J, 11 (1), 14-26. doi:10.4314/ovj.v11i1.4



Turabian Style

, Isamu Kanemoto, Kippei Mihara, and Keiichi Sato. 2021. Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Veterinary Journal, 11 (1), 14-26. doi:10.4314/ovj.v11i1.4



Chicago Style

, Isamu Kanemoto, Kippei Mihara, and Keiichi Sato. "Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review." Open Veterinary Journal 11 (2021), 14-26. doi:10.4314/ovj.v11i1.4



MLA (The Modern Language Association) Style

, Isamu Kanemoto, Kippei Mihara, and Keiichi Sato. "Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review." Open Veterinary Journal 11.1 (2021), 14-26. Print. doi:10.4314/ovj.v11i1.4



APA (American Psychological Association) Style

, I. K., Mihara, . K. & Sato, . K. (2021) Open-heart techniques and mitral valve plasty for mitral regurgitation in toy- and small-breed dogs: A review. Open Veterinary Journal, 11 (1), 14-26. doi:10.4314/ovj.v11i1.4