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Mitral valvuloplasty (MVP) is used in dogs with refractory mitral regurgitation (MR); however, it is difficult to tie the artificial chord, i.e., the expanded polytetrafluoroethylene suture, at the planned height of the mitral valve, because of the slippery nature of the knot. The loop technique has resolved these difficulties in humans. Premanufactured loops (length, 8.0-15.0 mm with 1.0-mm increments) were used in the new modified loop technique. In the current study, cardiac murmurs disappeared, and the MR markedly improved or completely disappeared approximately 3 months after surgery in 3 dogs. Therefore, this new technique might be effective in dogs.


Takuma Aoki, Yoko Fujii, Hiroshi Sunahara, Hiroshi Takano, Yoshito Wakao. Modified loop technique in three dogs with mitral regurgitation. The Journal of veterinary medical science / the Japanese Society of Veterinary Science. 2013 Jan 31;75(1):107-11

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PMID: 22971666

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