Journal of Veterinary Science

  • 제22권4호
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  • Pages.57.1-57.7
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  • 2021
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  • 1229-845X(pISSN)
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  • 1976-555X(eISSN)
대한수의학회 (The Korean Society of Veterinary Science)
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Echocardiographic features of accessory mitral valve tissue presenting left ventricular outflow tract obstruction in a dog

  • Kim, Soyeon (Department of Veterinary Medical Imaging, College of Veterinary Medicine, Chonnam National University) ;
  • Lee, Sang-Kwon (Department of Veterinary Medical Imaging, College of Veterinary Medicine, Chonnam National University) ;
  • Choi, Jihye (Department of Veterinary Medical Imaging, College of Veterinary Medicine, Chonnam National University)
  • 투고 : 2021.02.24
  • 심사 : 2021.06.29
  • 발행 : 2021.07.31
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초록

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.

키워드

과제정보

This study was supported by the Animal Medical Institute of Chonnam National University and the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT, and Future Planning (NRF-2021R1A2C200573011).

참고문헌

  1. Yuan SM, Shinfeld A, Mishaly D, Haizler R, Ghosh P, Raanani E. Accessory mitral valve tissue: a case report and an updated review of literature. J Card Surg. 2008;23(6):769-772. https://doi.org/10.1111/j.1540-8191.2008.00633.x
  2. Manganaro R, Zito C, Khandheria BK, Cusma-Piccione M, Chiara Todaro M, Oreto G, et al. Accessory mitral valve tissue: an updated review of the literature. Eur Heart J Cardiovasc Imaging. 2014;15(5):489-497. https://doi.org/10.1093/ehjci/jet163
  3. Sharma R, Smith J, Elliott PM, McKenna WJ, Pellerin D. Left ventricular outflow tract obstruction caused by accessory mitral valve tissue. J Am Soc Echocardiogr. 2006;19(3):354.e5-354.e8.
  4. Prifti E, Bonacchi M, Bartolozzi F, Frati G, Leacche M, Vanini V. Postoperative outcome in patients with accessory mitral valve tissue. Med Sci Monit 2003;9(6):RA126-RA133.
  5. Nikolic A, Joksimovic Z, Jovovic L. Exuberant accessory mitral valve tissue with possible true parachute mitral valve: a case report. J Med Case Reports. 2012;6(1):292. https://doi.org/10.1186/1752-1947-6-292
  6. Rovner A, Thanigaraj S, Perez JE. Accessory mitral valve in an adult population: the role of echocardiography in diagnosis and management. J Am Soc Echocardiogr. 2005;18(5):494-498. https://doi.org/10.1016/j.echo.2005.01.027
  7. Yetkin E, Cuglan B, Turhan H, Yalta K. Accessory mitral valve tissue: anatomical and clinical perspectives. Cardiovasc Pathol. 2021;50:107277. https://doi.org/10.1016/j.carpath.2020.107277
  8. Yetkin E, Turhan H, Atak R, Senen K, Cehreli S. Accessory mitral valve tissue manifesting cerebrovascular thromboembolic event in a 34-year-old woman. Int J Cardiol. 2003;89(2-3):309-311. https://doi.org/10.1016/S0167-5273(02)00511-9
  9. D'Aloia A, Vizzardi E, Chiari E, Fracassi F, Zanini G, Faggiano P, et al. Dynamic mild subaortic left ventricular obstruction caused by an accessory mitral valve attached to the anterior mitral valve in a young pregnant woman. Eur J Echocardiogr 2008;9(1):160-161.
  10. Yao H, Miyamoto T, Mukai S, Yamamura M, Nakagawa T, Ryomoto M, et al. Accessory mitral valve associated with aortic regurgitation in an elderly patient: report of a case. Surg Today. 2002;32(6):516-518. https://doi.org/10.1007/s005950200088
  11. Silbiger JJ. Left ventricular false tendons: anatomic, echocardiographic, and pathophysiologic insights. J Am Soc Echocardiogr. 2013;26(6):582-588. https://doi.org/10.1016/j.echo.2013.03.005
  12. Korabathina R, Chiu K, van Gelder HM, Labovitz A. Anomalous papillary muscle insertion causing dynamic left ventricular outflow tract obstruction without hypertrophic obstructive cardiomyopathy. Case Rep Cardiol. 2017;2017:9878049.
  13. Bilal MS, Oztunc F, Besikci R, Bilal S, Ozkara A, Olga R. Accessory mitral valve tissue causing severe subaortic stenosis with dextrocardia in a premature newborn. Thorac Cardiovasc Surg. 1999;47(4):252-255. https://doi.org/10.1055/s-2007-1013154
  14. Kim MS, Klein AJ, Groves BM, Quaife RA, Salcedo EE. Left ventricular outflow tract obstruction in the presence of asymmetric septal hypertrophy and accessory mitral valve tissue treated with alcohol septal ablation. Eur J Echocardiogr 2008;9(5):720-724.
  15. Schwammenthal E, Nakatani S, He S, Hopmeyer J, Sagie A, Weyman AE, et al. Mechanism of mitral regurgitation in hypertrophic cardiomyopathy: mismatch of posterior to anterior leaflet length and mobility. Circulation. 1998;98(9):856-865. https://doi.org/10.1161/01.CIR.98.9.856