The Repeatability and Left Atrial Strain Analysis Obtained via Speckle Tracking Echocardiography in healthy Dogs

Dermlim, Angkhana; Nakamura, Kensuke; Morita, Tomoya; Osuga, Tatsuyuki; Nisa, Khoirun; Sasaoka, Kazuyoshi; Leela-Arporn, Rommaneeya; Sasaki, Noboru; Ohta, Hiroshi; Takiguchi, Mitsuyoshi

doi:10.1016/j.jvc.2019.01.006

“…Finally, no correlation was found between PALS and LA size, but it correlated well with other echocardiographic parameters of LA function variables, including LA-FS, LA-EF and FAC. Two-dimensional speckle tracking echocardiography is an echocardiographic technique that can be used to assess LA longitudinal strain in dogs [8,9,12,37] and humans [10,11,27,38]. Few studies using 2D-STE to assess left ventricular function in cats with HCM have been published [22,23,[28][29][30].…”

Section: Discussionmentioning

confidence: 99%

“…The left atrium (LA) plays an important role in cardiac performance through its three phasic functions: reservoir, conduit, and booster pump functions [8][9][10][11][12]. The rst is the reservoir phase, in which the LA obtains blood from the pulmonary venous ow during the left ventricular systole.…”

Section: Introductionmentioning

confidence: 99%

“…The second is the conduit phase, when the LA transfers blood passively into the left ventricle during early diastole. The nal phase is the booster pump, which represents LA contraction during the late diastole [8][9][10][11][12] . Assessment of LA size is the most important indicater of the chronicity, severity and progression of the disease [5].…”

Section: Introductionmentioning

confidence: 99%

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

Kiatsilapanan¹,

Surachetpong

²

2020

Preprint

0

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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.

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“…Finally, no correlation was found between PALS and LA size, but it correlated well with other echocardiographic parameters of LA function variables, including LA-FS, LA-EF and FAC. Two-dimensional speckle tracking echocardiography is an echocardiographic technique that can be used to assess LA longitudinal strain in dogs [8,9,12,31] and humans [10,11,27,32]. Few studies using 2D-STE to assess left ventricular function in cats with HCM have been published [22,23,[28][29][30].…”

Section: Discussionmentioning

confidence: 99%

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

Kiatsilapanan¹,

Surachetpong

²

2020

Preprint

0

View full text Add to dashboard Cite

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.

show abstract

“…The left atrium (LA) plays an important role in cardiac performance through its three phasic functions: reservoir, conduit, and booster pump function [5][6][7][8][9]. First is the reservoir phase, in which the left atrium obtains blood from the pulmonary venous flow during the left ventricular systole.…”

mentioning

confidence: 99%

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

Kiatsilapanan¹,

Surachetpong

²

2020

Preprint

View full text Add to dashboard Cite

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

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The Repeatability and Left Atrial Strain Analysis Obtained via Speckle Tracking Echocardiography in healthy Dogs

Cited by 16 publications

References 43 publications

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

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

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

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

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