Echocardiographic features of accessory mitral valve tissue presenting left ventricular outflow tract obstruction in a dog
- Author:
Soyeon KIM
1
;
Sang-Kwon LEE
;
Jihye CHOI
Author Information
- Publication Type:Case Report
- From:Journal of Veterinary Science 2021;22(4):e57-
- CountryRepublic of Korea
- Language:English
- Abstract: In a 3-year-old Samoyed, aortic bulging was found on radiography during a general check-up. On echocardiography, turbulent flow was found in left ventricular outflow tract (LVOT) with high velocity (6.1 m/s). A linear structure was attached to the interventricular septum and connected to the chordae tendineae reaching the papillary muscle. A part of the structure moved during cardiac cycle, similar to mitral motion. This dog was diagnosed with LVOT obstruction caused by accessory mitral valve tissue (AMVT). This is the first report of AMVT in veterinary medicine. AMVT should be considered as a possible cause of LVOT obstruction in dogs.
