Temporal changes in the presence and intensity of innocent cardiac murmurs in clinically healthy Cairn terrier and Dachshund puppies between 4 and 8 weeks of age

Donny Rigterink, Mariska A L'Herminez, Viktor Szatmári

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Spontaneous week-to-week variation in the presence and intensity of innocent cardiac murmurs in individual puppies is unknown.

METHODS: Sixty privately owned, clinically healthy Cairn terrier and Dachshund puppies between 4 and 8 weeks of age were included. All dogs underwent weekly cardiac auscultation at the breeders' home by a veterinary cardiology specialist using an acoustic stethoscope. On each occasion, a phonocardiogram was recorded with an electronic stethoscope. Furthermore, all dogs were auscultated once at a first opinion veterinary practise and once at the authors' institution, where they also underwent an echocardiographic examination.

RESULTS: Two-hundred and eighty-one auscultations were conducted on 32 Cairn terriers and 28 Dachshunds, at the breeders' homes. Innocent murmurs were detected in 19 puppies. Two of these puppies had a detectable murmur on each auscultation. In five of the puppies, the murmur became undetectable during the observation period and in 12 puppies the murmur was intermittently audible. Auscultation at the authors' institution had an unpredictable effect on murmur presence and intensity. Phonocardiography revealed murmurs in 42 puppies. Interpretation of phonocardiograms by two independent observers showed nearly perfect agreement (κ = 0.859).

CONCLUSIONS: Remarkable and unpredictable spontaneous week-to-week variation was documented in the presence and intensity of innocent murmurs.

Original languageEnglish
Article numbere1173
Pages (from-to)1-8
JournalVeterinary Record
Volume190
Issue number8
Early online date22 Nov 2021
DOIs
Publication statusPublished - Apr 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021 The Authors. Veterinary Record published by John Wiley & Sons Ltd on behalf of British Veterinary Association.

Keywords

  • auscultation
  • inter-observer agreement
  • phonocardiography
  • screening

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