Comparison of conventional and sensor-based electronic stethoscopes in detecting Cardiac murmurs of dogs

K. Vörös, A. Bonnevie, J. Reiczigel

Research output: Article

9 Citations (Scopus)

Abstract

Background and objective: Cardiac auscultation is one of the most important parts of the cardiological examination traditionally performed with acoustic stethoscopes. The aim of this study was to compare the sensitivities and the diagnostic capabilities of traditional and electronic stethoscopes in detecting canine heart murmurs. Materials and methods: The study was performed on 21 dogs referred for cardiologic examination with suspected heart murmurs. Six out of these dogs had cardiac murmurs bilaterally. Cardiac auscultation was performed independently by a final-year veterinary student (AB = I1) and by an experienced clinician (KV = I2), both using a traditional and a Welch Allyn Meditron electronic sensor-based stethoscope. Final diagnoses were established by echocardiography and by digital phonocardiography. Results: Correct detection of a murmur was made by I1 with a traditional stethoscope in 20/27 (74.0%) of the suspected murmurs (p = 0.30, kappa [κ] = 0.2) and with the electronic stethoscope in 26/27 (96.3%), respectively (p = 0.0013, κ = 0.75). I2 correctly detected the murmurs with the traditional stethoscope in 25/27 (92.6%) cases (p = 0.0013, κ = 0.75) and with the electronic stethoscope in all 27/27 (100%) cases (p = 0.00012, κ = 1). Agreements of murmur intensity gradings between traditional and electronic stethoscopes were highly significant (I1: p = 6.9 × 10-8; κ = 0.79), (I2: p = 5.2 × 10-11; κ = 0.92). When grading the murmurs with the traditional stethoscope, there was a significant agreement between I1 and I2 (p = 2.9 × 10-7; κ = 0.79), being even higher with the electronic stethoscope (p = 1.1 × 10-11; κ = 0.92). Conclusion: The electronic stethoscope was more sensitiVethan the traditional one in detecting and grading cardiac murmurs being especially useful for I1 with less experience. However, it can be suggested to use a traditional and an electronic stethoscopes simultaneously to optimally utilize their advantages.

Original languageEnglish
Pages (from-to)103-111
Number of pages9
JournalTierarztliche Praxis Ausgabe K: Kleintiere - Heimtiere
Volume40
Issue number2
Publication statusPublished - 2012

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Stethoscopes
Heart Murmurs
electronics
Dogs
dogs
Heart Auscultation
heart
electronic sensing
echocardiography
veterinarians
acoustics
Phonocardiography
Acoustics
Echocardiography
Canidae

ASJC Scopus subject areas

  • Small Animals

Cite this

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title = "Comparison of conventional and sensor-based electronic stethoscopes in detecting Cardiac murmurs of dogs",
abstract = "Background and objective: Cardiac auscultation is one of the most important parts of the cardiological examination traditionally performed with acoustic stethoscopes. The aim of this study was to compare the sensitivities and the diagnostic capabilities of traditional and electronic stethoscopes in detecting canine heart murmurs. Materials and methods: The study was performed on 21 dogs referred for cardiologic examination with suspected heart murmurs. Six out of these dogs had cardiac murmurs bilaterally. Cardiac auscultation was performed independently by a final-year veterinary student (AB = I1) and by an experienced clinician (KV = I2), both using a traditional and a Welch Allyn Meditron electronic sensor-based stethoscope. Final diagnoses were established by echocardiography and by digital phonocardiography. Results: Correct detection of a murmur was made by I1 with a traditional stethoscope in 20/27 (74.0{\%}) of the suspected murmurs (p = 0.30, kappa [κ] = 0.2) and with the electronic stethoscope in 26/27 (96.3{\%}), respectively (p = 0.0013, κ = 0.75). I2 correctly detected the murmurs with the traditional stethoscope in 25/27 (92.6{\%}) cases (p = 0.0013, κ = 0.75) and with the electronic stethoscope in all 27/27 (100{\%}) cases (p = 0.00012, κ = 1). Agreements of murmur intensity gradings between traditional and electronic stethoscopes were highly significant (I1: p = 6.9 × 10-8; κ = 0.79), (I2: p = 5.2 × 10-11; κ = 0.92). When grading the murmurs with the traditional stethoscope, there was a significant agreement between I1 and I2 (p = 2.9 × 10-7; κ = 0.79), being even higher with the electronic stethoscope (p = 1.1 × 10-11; κ = 0.92). Conclusion: The electronic stethoscope was more sensitiVethan the traditional one in detecting and grading cardiac murmurs being especially useful for I1 with less experience. However, it can be suggested to use a traditional and an electronic stethoscopes simultaneously to optimally utilize their advantages.",
keywords = "Auscultation, Canine, Cardiac murmur, Electronic, Heart, Stethoscope",
author = "K. V{\"o}r{\"o}s and A. Bonnevie and J. Reiczigel",
year = "2012",
language = "English",
volume = "40",
pages = "103--111",
journal = "Tierarztliche Praxis Ausgabe K: Kleintiere - Heimtiere",
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T1 - Comparison of conventional and sensor-based electronic stethoscopes in detecting Cardiac murmurs of dogs

AU - Vörös, K.

AU - Bonnevie, A.

AU - Reiczigel, J.

PY - 2012

Y1 - 2012

N2 - Background and objective: Cardiac auscultation is one of the most important parts of the cardiological examination traditionally performed with acoustic stethoscopes. The aim of this study was to compare the sensitivities and the diagnostic capabilities of traditional and electronic stethoscopes in detecting canine heart murmurs. Materials and methods: The study was performed on 21 dogs referred for cardiologic examination with suspected heart murmurs. Six out of these dogs had cardiac murmurs bilaterally. Cardiac auscultation was performed independently by a final-year veterinary student (AB = I1) and by an experienced clinician (KV = I2), both using a traditional and a Welch Allyn Meditron electronic sensor-based stethoscope. Final diagnoses were established by echocardiography and by digital phonocardiography. Results: Correct detection of a murmur was made by I1 with a traditional stethoscope in 20/27 (74.0%) of the suspected murmurs (p = 0.30, kappa [κ] = 0.2) and with the electronic stethoscope in 26/27 (96.3%), respectively (p = 0.0013, κ = 0.75). I2 correctly detected the murmurs with the traditional stethoscope in 25/27 (92.6%) cases (p = 0.0013, κ = 0.75) and with the electronic stethoscope in all 27/27 (100%) cases (p = 0.00012, κ = 1). Agreements of murmur intensity gradings between traditional and electronic stethoscopes were highly significant (I1: p = 6.9 × 10-8; κ = 0.79), (I2: p = 5.2 × 10-11; κ = 0.92). When grading the murmurs with the traditional stethoscope, there was a significant agreement between I1 and I2 (p = 2.9 × 10-7; κ = 0.79), being even higher with the electronic stethoscope (p = 1.1 × 10-11; κ = 0.92). Conclusion: The electronic stethoscope was more sensitiVethan the traditional one in detecting and grading cardiac murmurs being especially useful for I1 with less experience. However, it can be suggested to use a traditional and an electronic stethoscopes simultaneously to optimally utilize their advantages.

AB - Background and objective: Cardiac auscultation is one of the most important parts of the cardiological examination traditionally performed with acoustic stethoscopes. The aim of this study was to compare the sensitivities and the diagnostic capabilities of traditional and electronic stethoscopes in detecting canine heart murmurs. Materials and methods: The study was performed on 21 dogs referred for cardiologic examination with suspected heart murmurs. Six out of these dogs had cardiac murmurs bilaterally. Cardiac auscultation was performed independently by a final-year veterinary student (AB = I1) and by an experienced clinician (KV = I2), both using a traditional and a Welch Allyn Meditron electronic sensor-based stethoscope. Final diagnoses were established by echocardiography and by digital phonocardiography. Results: Correct detection of a murmur was made by I1 with a traditional stethoscope in 20/27 (74.0%) of the suspected murmurs (p = 0.30, kappa [κ] = 0.2) and with the electronic stethoscope in 26/27 (96.3%), respectively (p = 0.0013, κ = 0.75). I2 correctly detected the murmurs with the traditional stethoscope in 25/27 (92.6%) cases (p = 0.0013, κ = 0.75) and with the electronic stethoscope in all 27/27 (100%) cases (p = 0.00012, κ = 1). Agreements of murmur intensity gradings between traditional and electronic stethoscopes were highly significant (I1: p = 6.9 × 10-8; κ = 0.79), (I2: p = 5.2 × 10-11; κ = 0.92). When grading the murmurs with the traditional stethoscope, there was a significant agreement between I1 and I2 (p = 2.9 × 10-7; κ = 0.79), being even higher with the electronic stethoscope (p = 1.1 × 10-11; κ = 0.92). Conclusion: The electronic stethoscope was more sensitiVethan the traditional one in detecting and grading cardiac murmurs being especially useful for I1 with less experience. However, it can be suggested to use a traditional and an electronic stethoscopes simultaneously to optimally utilize their advantages.

KW - Auscultation

KW - Canine

KW - Cardiac murmur

KW - Electronic

KW - Heart

KW - Stethoscope

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