Prevalence of mitral valve regurgitation in 79 asymptomatic Norfolk terriers

Abstract

Objectives: To determine the prevalence of mitral valve regurgitation (MR) in asymptomatic Swedish Norfolk terriers.Animals: Seventy-nine privately owned Norfolk terriers.Materials and methods: A prospective observational study was conducted where dogs were recruited via the Swedish Norfolk terrier club. All dogs were examined using the same protocol including physical examination and Doppler echocardiography.Results: Fifteen dogs (19%) had a murmur at the time of the examination. A total of 35 dogs (44%) had MR, including 23 dogs (29%) with both MR and tricuspid valve regurgitation and 12 dogs (15%) with MR only, identified on Doppler echocardiography. In addition, 7 dogs (9%) had tricuspid valve regurgitation only. The prevalence of MR increased with increasing age (p < 0.0001).Conclusions: Mitral valve regurgitation is common in asymptomatic Norfolk terriers with and without murmurs and the prevalence increases with age. The impact of MR in this breed on survival remains to be elucidated by a longitudinal study. (C) 2017 Elsevier B.V. All rights reserved.

Keywords

Atrioventricular valve insufficiency; Myxomatous mitral valve disease; Acquired heart disease; Subclinical heart disease

Published in

Journal of Veterinary Cardiology
2017, volume: 19, number: 2, pages: 107-112
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Tidholm, Anna

  • Department of Clinical Sciences, Swedish University of Agricultural Sciences
    
  • Albano Animal Hospital

• Häggström, Jens

  • Department of Clinical Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Clinical Science

Publication identifier

• DOI: https://doi.org/10.1016/j.jvc.2016.12.003

Permanent link to this page (URI)

https://res.slu.se/id/publ/83497