Radial strain and strain rate assessed by Speckle-Tracking Echocardiography in Turkish Kangal Dogs

Year 2017, Volume: 1 Issue: 1, 12 - 15, 01.12.2017

Osman Safa Terzı Hasan Albasan

Abstract

Objectives:
Mitral valve disease and dilated
cardiomyopathy are common acquired cardiac diseases in dogs. Standard
echocardiography is commonly used on dogs to non-invasively evaluate myocardial
function. The aim of this prospective study was to provide results about
variabilities of peak systolic radial strain and strain rate at the level of
the papillary muscles using two-dimensional speckle tracking echocardiography
in a population of healthy and dogs with cardiologic disorders.

Materials
and Methods: Study Groups of A and B consisted of
3 dogs with dilated cardiomyopathy and 4 dogs with valve disease, respectively.
Control Group (C) consisted of 7 healthy dogs. These dogs were presented for
cardiac screening at the Veterinary Medical Hospital of Ankara University in
Turkey and were analyzed retrospectively

Results:
It is revealed that for strain
evaluation, Group A was significantly (P<0.05) different from Group C and
Group B.

Discussion:
According to the literature, this is
the first study from Turkey where speckle tracking echocardiography is used to
assess the left ventricular function of Turkish Kangal dogs with naturally
occurring dilated cardiomyopathy and mitral valve disease. Two-dimensional
speckle tracking echocardiography revealed decreased left ventricular
myocardial systolic performance in dogs with dilated cardiomyopathy compared
with strain levels of healthy dogs and dogs with valve disease.

Keywords

Dog, Speckle Tracking Echocardiography, mitral valve disease, dilated cardiomyopathy

References

• Bogaert, J., Rademakers, F.E., 2001. Regional nonuniformity of normal adult human left ventricle. American Journal of Physiology - Heart and Circulatory Physiology 280, H610-H620.
• Chetboul, V., Tissier, R., 2012. Echocardiographic assessment of canine degenerative mitral valve disease. Journal of Veterinary Cardiology 14, 127-148.
• Pedro, B., Stephenson, H., Linney, C., Cripps, P., Dukes-McEwan, J., 2017. Assessment of left ventricular function in healthy Great Danes and in Great Danes with dilated cardiomyopathy using speckle tracking echocardiography. Journal of Veterinary Cardiology 19, 363-375.
• Saito, K., Okura, H., Watanabe, N., Hayashida, A., Obase, K., Imai, K., Maehama, T., Kawamoto, T., Neishi, Y., Yoshida, K., 2009. Comprehensive Evaluation of Left Ventricular Strain Using Speckle Tracking Echocardiography in Normal Adults: Comparison of Three-Dimensional and Two-Dimensional Approaches. Journal of the American Society of Echocardiography 22, 1025-1030.
• Suzuki, R., Matsumoto, H., Teshima, T., Koyama, H., 2013a. Effect of age on myocardial function assessed by two-dimensional speckle-tracking echocardiography in healthy beagle dogs. Journal of Veterinary Cardiology 15, 243-252.
• Suzuki, R., Matsumoto, H., Teshima, T., Koyama, H., 2013b. Noninvasive Clinical Assessment of Systolic Torsional Motions by Two-Dimensional Speckle-Tracking Echocardiography in Dogs with Myxomatous Mitral Valve Disease. J. Vet. Intern. Med. 27, 69-75.
• Westrup, U., McEvoy, F.J., 2013. Speckle tracking echocardiography in mature Irish Wolfhound dogs: technical feasibility, measurement error and reference intervals. Acta Veterinaria Scandinavica 55, 41-41.