Assessment of left atrial function in dogs with myxomatous mitral valve disease by biplane simpson’s method

2020

BMC Vet Res

Background Left atrial (LA) function plays an important role in diastolic dysfunction in cats with hypertrophic cardiomyopathy (HCM). Two-dimensional speckle tracking echocardiography (2D-STE) is a technique for assessing LA function. This study aimed to evaluate the LA function in HCM cats compared to normal cats, using 2D-STE. Results Seventeen client-owned cats affected with HCM and twenty healthy control cats were studied. Conventional echocardiographic and 2D-STE variables were measured and compared between groups (control and HCM groups). Variability of the peak atrial longitudinal strain (PALS) displayed good reproducibility with 4.7% intra-observer and 14% inter-observer repeatability. The mean value of PALS in the HCM group (13.16 ± 8.64) was lower than that in the control group (28.54 ± 10.31) (P < 0.001). PALS was lowest in the LA roof region. The atrial longitudinal strains of septal and lateral regions were significantly lower in the HCM group than in the normal group. The PALS correlated with the percentage of the LA fractional shortening (LA-FS) (r = 0.538, P = 0.001), the percentage of the LA ejection fraction (LA-EF) (r = 0.797, P < 0.001), and the LA fractional area change (FAC) (r = 0.746, P < 0.001). Conclusions PALS is a feasible and reproducible method to evaluate the LA function in cats affected with HCM.

Section: Introductionmentioning

confidence: 99%

Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

Kiatsilapanan

2020

BMC Vet Res

“…Several methods have been used in the assessment of LA function in humans and dogs, such as echocardiography, magnetic resonance imaging and computed tomography [13][14][15][16][17][18][19]. Echocardiographic techniques used for evaluating LA function in humans, dogs, and cats include phasic volume changes and tissue Doppler imaging, but these techniques have limitations, including load-and angle-dependence, and the tethering effect [5,11,14,[20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

Kiatsilapanan¹,

2020

Preprint

Background: Left atrial (LA) function plays an important role in diastolic dysfunction in cats with hypertrophic cardiomyopathy (HCM). Two-dimensional speckle tracking echocardiography (2D-STE) is a technique for assessing LA function. This study aimed to evaluate the LA function in HCM cats compared to normal cats, using 2D-STE.Results: Seventeen client-owned cats affected with HCM and twenty healthy control cats were studied. Conventional echocardiographic and 2D-STE variables were measured and compared between groups (control and HCM groups). Variability of the peak atrial longitudinal strain (PALS) displayed good reproducibility with 4.7% intra-observer and 14% inter-observer repeatability. The mean value of PALS in the HCM group (13.16 ± 8.64) was lower than that in the control group (28.54 ±10.31) (P < 0.001). PALS was lowest in the LA roof region. The atrial longitudinal strains of septal and lateral regions were significantly lower in the HCM group than in the normal group. The PALS correlated with the percentage of the LA fractional shortening (LA-FS) (r=0.538, P =0.001), the percentage of the LA ejection fraction (LA-EF) (r =0.797, P <0.001), and the LA fractional area change (FAC) (r =0.746, P <0.001). Conclusions: PALS is a feasible and reproducible method to evaluate the LA function in cats affected with HCM.

“…Several methods have been used in the assessment of LA function in humans and dogs, such as echocardiography, magnetic resonance imaging and computed tomography [11,12].…”

mentioning

confidence: 99%

“…Echocardiographic techniques used for evaluating LA function in humans, dogs, and cats include phasic volume changes and tissue Doppler imaging, but these techniques have limitations, including load-dependence, angle-dependence, and the tethering effect [3,8,10,12,13].…”

mentioning

confidence: 99%

Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

Kiatsilapanan¹,

2020

Preprint

Background : Left atrial (LA) function plays an important role in diastolic dysfunction in cats with hypertrophic cardiomyopathy (HCM). Two-dimensional speckle tracking echocardiography (2D-STE) is a novel technique for assessing LA function. This study aimedto evaluate changes in the LA function inHCM cats compared to normal cats, using 2D-STE. Results: Seventeen client-owned cats affected with HCM and twenty healthy control cats. Conventional echocardiographic and 2D-STE variables were measured and compared between groups (the normal and HCM groups). The difference between two groups was compared by using the independent Student’s t-test. A p -value less than 0.05 was considered significant. Variability from the 2D-STE variables tests displayed good reproducibility (coefficient of variation ≤15%). The mean value of peak atrial longitudinal strain (PALS) in the HCM group (13.16 ± 8.64) was lower in the control group (28.54 ±10.31) ( p < 0.001). PALS was lowest at the LA roof region. The atrial longitudinal strain of septal and lateral regions was significantly lower in the HCM group than the normal group. PALS correlated with the percentage of the LA fractional shortening (LA-FS) (r=0.538, p =0.001), the percentage of the LA ejection fraction (LA-EF) (r =0.797, p <0.001), and the LA fractional area change (FAC) (r =0.746, p <0.001). Conclusions: PALS can be used to evaluate changes in theLA function in HCM cats. It is a reproducible method for assessing the LA function in cats affected with HCM. Keywords cats; heart; left atrium; strain