Treatment of Severe Mitral Regurgitation Caused by Lesions in Both Leaflets Using Multiple Mitral Valve Plasty Techniques in a Small Dog

• Published in: Open veterinary journal (Tripoli, Libya) Vol. 7; no. 4; pp. 328 - 331
• Main Authors: Ando , Takanori, Yokoyama , Satoko, Sahashi , Yasuaki, Kanemoto , Isamu, Iguchi , Kazuhito, Mihara , Kippei, Kawase , Koudai
• Format: Journal Article
• Language: English
• Published: Tripoli, Libya University of Tripoli : Faculty of Veterinary Medicine 01-01-2017; Faculty of Veterinary Medicine, University of Tripoli and Libyan Authority for Research, Science and Technology; Tripoli University
• Subjects: CARDIOVASCULAR DISEASES; Case Report; Chordal reconstruction; Dog; DOGS; LESIONS; Mitral regurgitation; Multiple direct scallop suture; SCALLOPS; Semi-circular suture annuloplasty; أمراض القلب و الأوعية الدموية; الأسقلوب; التمزقات; الكلاب
• ISSN: 2226-4485; 2218-6050; 2218-6050
• DOI: 10.4314/ovj.v7i4.7

Mitral valve plasty (MVP) is preferred over mitral valve replacement (MVR) for mitral
regurgitation in humans because of its favorable effect on quality of life. In small
dogs, it is difficult to repair multiple lesions in both leaflets using MVP. Herein,
we report a case of severe mitral regurgitation caused by multiple severe lesions in
the posterior leaflet (PL) in a mixed Chihuahua. Initially, we had planned MVR with
an artificial valve. However, MVP combined with artificial chordal reconstruction of
both leaflets, semicircular suture annuloplasty, and valvuloplasty using a newly
devised direct scallop suture for the PL was attempted in this dog. The dog recovered
well and showed no adverse cardiac signs, surviving two major operations. The dog
died 4 years and 10 months after the MVP due to non-cardiovascular disease. Our
additional technique of using a direct scallop suture seemed useful for PL repair
involving multiple scallops in a small dog.