Evaluation of left ventricular diastolic echocardiographic parameters in healthy dogs by pulsed-wave Doppler

Pereira, Guilherme da Silva; Petrus, L. C.; Santos, André L. F.; Yamaki, Fernanda Lie; Larsson, Maria

doi:10.1590/s0100-736x2009000400003

Cited by 6 publications

(8 citation statements)

References 10 publications

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“…Although no data regarding mitral peak velocity was found in the literature, the velocities of transmitral peak early (E) and transmitral peak late (A) diastole are identical to those found by Pereira et al (2009) and similar to those described in German Shepherd dogs by Muzzi et al (2006) and Schober & Fuentes (2001). An E/A ratio greater than 1 and less than 2 indicates a normal relaxation pattern, as seen in this case.…”

Section: Discussionsupporting

confidence: 82%

Strain and strain rate by two-dimensional speckle tracking echocardiography in a maned wolf

et al. 2012

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Pesq. Vet. Bras. 32(12):1336-1340, dezembro 2012 1336 RESUMO.-[Strain e strain rate por meio de ecocardiograϐia speckle traking bidimensional em um lobo-guará.] A obtenção de parâmetros cardiovasculares em animais selvagens são importantes de serem avaliados, assim como em animais de companhia, para a obtenção da função miocárdica e determinação precoce de alterações cardíacas que poderiam evoluir para insuϐiciência cardíaca . A ecocardiograϐia speckle tracking (2D STE) é uma ferramenta nova que tem sido utilizada em medicina veterinária, a qual tem demonstrado várias vantagens quanto ao seu uso, como a The measurement of cardiovascular features of wild animals is important, as is the measurement in pets, for the assessment of myocardial function and the early detection of cardiac abnormalities, which could progress to heart failure. Speckle tracking echocardiography (2D STE) is a new tool that has been used in veterinary medicine, which demonstrates several advantages, such as angle independence and the possibility to provide the early diagnosis of myocardial alterations. The aim of this study was to evaluate the left myocardial function in a maned wolf by 2D STE. Thus, the longitudinal, circumferential and radial strain and strain rate were obtained, as well as, the radial and longitudinal velocity and displacement values, from the right parasternal long axis four-chamber view, the left parasternal apical four chamber view and the parasternal short axis at the level of the papillary muscles. The results of the longitudinal variables were -13.52±7.88, -1.60±1.05, 4.34±2.52 and 3.86±3.04 for strain (%), strain rate (1/s), displacement (mm) and velocity (cm/s), respectively. In addition, the radial and circumferential Strain and Strain rate were 24.39±14.23, 1.86±0.95 and -13.69±6.53, -1.01±0.48, respectively. Thus, the present study provides the ϐirst data regarding the use of this tool in maned wolves, allowing a more complete quantification of myocardial function in this species.INDEX TERMS: Cardiac function, Chrysocyon brachyurus, maned wolf, systolic function, wild canid. independência do ângulo de insonação e a possibilidade de se obter o diagnóstico precoce de alterações miocárdi-cas. Objetivou-se avaliar a função miocárdica esquerda de um lobo guará por meio do uso da 2D STE. Desta forma, foram obtidas as variáveis Strain e Strain Rate longitudinais, circunferenciais e radiais, assim como a velocidade e o deslocamento longitudinais e radiais, utilizando os cortes eixo longo paraesternal direito quatro câmaras, paraesternal esquerdo apical quatro câmaras e eixo curto paraesternal direito no plano dos músculos papilares. Os resultados das variáveis longitudinais fora -13,52±7,88, -1,60±1,05, 4,34±2,52 e 3,86±3,04 para Strain (%), Strain rate (1/s), deslocamento (mm) e velocidade (cm/s), respectivamente. Quanto ao Strain e Strain rate radiais e circunferenciais foram obtidos 24,39±14,23, 1,86±0,95 e -13,69±6,53, -1,01±0,48. Portanto, o presente estudo fornece os primeiPesq. Vet. Bras. 32(12):1336-1340, de...

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Section: Discussionsupporting

confidence: 82%

Strain and strain rate by two-dimensional speckle tracking echocardiography in a maned wolf

et al. 2012

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“…45,46,47 Human and canine studies report a decrease in the E':A' ratio with advancing age. 48,49,50 In humans, this condition is linked to a decline in diastolic functions of the heart as one grows older. 51 Similarly, we found a decrease in the E':A' ratio in conjunction with increasing age and a moderate negative correlation between age and the E':A' ratio.…”

Section: Discussionmentioning

confidence: 99%

An echocardiographic study of breed‐specific reference ranges in healthy French Bulldogs

Vurucu

Ekinci

Güneş

2021

Vet Radiology Ultrasound

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Echocardiography is a standard diagnostic tool for assessment of cardiac functions and cardiovascular diseases in dogs, however published echocardiographic measurements have varied widely based on dog breeds. The objective of this prospective reference interval study was to provide breed-specific echocardiographic values for healthy French Bulldogs. A total of 42 healthy French Bulldogs of both sexes (23 females and 19 males) were sampled. Furthermore, measurements for a control group (n = 16) were also conducted in four other dog breeds (Cocker Spaniel [n = 2], Cavalier King Charles Spaniel [n = 4], Terrier [n = 5], and Crossbreed [n = 5]). Standard M-mode, two-dimensional (2D), pulse wave (PW) Doppler, and tissue Doppler imaging (TDI) echocardiographic measurements were obtained from healthy French Bulldogs. The M-mode echocardiographic data obtained from French Bulldogs were compared to the data obtained from the control group. The left ventricular internal dimension at end-diastole (LVIDd; cm)/body surface area (BSA) (m 2) ratio for the study group was 3.35/0.53 = 6.32. Left ventricular measurements for French bulldogs and internal dimension at end-systole (21.23 ± 3.50 mm) and at end-diastole (33.50 ± 4.12 mm) were found to be significantly higher (P < .001) compared to control group values (left ventricular internal dimension at end-systole [LVIDs]; 17.46 ± 2.85 mm, LVIDd; 27.16 ± 4.20 mm, respectively). A significantly positive correlation in the French Bulldog group was noted between body weight and M-mode measurements (EPSS, IVSd, IVSs, LVIDd, LVIDs, and LVPWd). French bulldogs had a greater systolic and diastolic left ventricular volume than the control group. As a result, values reported in this study could be used as specific reference ranges in French Bulldogs.

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“…Body weight correlated significantly (r=0.42) with IVRT, in line with findings of O' Sullivan et al (2007) but contrary to findings of Bodh et al, (2020). Fast heart rate in small sized dogs cause early left ventricular filling resulting in premature opening of mitral leaflets and thus shortening of IVRT (Pereira et al, 2009). The duration of E-wave was greater than normal dogs (Schober et al, 1998) and the duration of A-wave was also greater than values reported previously (Schober et al, 1998;O'Sullivan et al, 2007 andBodh et al, 2020).…”

Section: Resultsmentioning

confidence: 78%

“…Studies on Pulsed-wave Doppler Echocardiographic Parameters of Blood Flow through Mitral, Tricuspid and Aortic... of Pereira et al (2009) and Bodh et al (2020), but contrary to findings of O'Sullivan et al (2007) in Doberman Pinschers where majority of Doppler echocardiographic variables correlated significantly with body weight. Time interval from peak to end of mitral E-wave represented mitral deceleration time (DT E ).Value in Indian Spitz were lower than German Shepherd (Muzzi et al, 2006), Doberman Pinscher (O' Sullivan et al, 2007 and Indian mongrel dogs (Bodh et al, 2020).Mitral DT E correlated nonsignificantly with gender and body weight similar to findings in Indian mongrel dogs (Bodh et al, 2020).…”

Section: Resultsmentioning

confidence: 80%

“…There is wide variation in Doppler echocardiographic values derived from mixed population of dogs (Brown et al, 1991;Schober et al, 1998;Pereira et al, 2009;Jeyaraja et al, 2016) due to differences in their breed, gender and body weight. Above reference values when used for a particular breed of dog may result in erroneous interpretation of cardiac data.…”

Section: Introductionmentioning

confidence: 99%

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Studies on Pulsed-wave Doppler Echocardiographic Parameters of Blood Flow through Mitral, Tricuspid and Aortic Valves in Healthy Indian Spitz Dogs

Bodh¹,

Hoque²,

Saxena³

2021

IJAR

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Background: Pulsed-wave Doppler measures blood flow at specific point and provides information on velocity, direction and uniformity of blood flow throughout cardiac cycle. Till date, there is no published data on study of cardiac parameters using pulsed-wave Doppler echocardiography in Indian Spitz dogs.Methods: Twenty-four clinically normal Indian Spitz dogs were subjected to pulsed-wave Doppler echocardiography to determine the reference intervals for Doppler parameters of blood flow through mitral, tricuspid and aortic valves. Mitral peak E and A-wave velocities, E/A ratio, deceleration time, isovolumic relaxation time, E and A-wave velocity time integral, E duration and A duration were 0.69±0.09 m/s, 0.43±0.12 m/s, 1.69±0.45, 111.25±35.94 ms, 48.50±24.77 ms, 0.07±0.01 m and 0.04±0.02 m, 196.88±44.38 ms and 181.25±64.89 ms, respectively. Tricuspid peak E and A-wave velocities, E/A ratio and E and A-wave velocity time integral were 0.57±0.11 m/s, 0.38±0.08 m/s, 1.56±0.32 and 0.07±0.02 m and 0.05±0.01 m, respectively. Aortic peak velocity, velocity time integral and ejection time were 0.87±0.07 m/s, 0.11±0.02 m and 0.25±0.04 s, respectively. Conclusion: The reference values of flow parameters across mitral, tricuspid and aortic valves using pulsed-wave Doppler echocardiography were determined. Mitral, tricuspid and aortic valve flow variables were unaffected by gender whereas isovolumic relaxation correlated positively with body weight.

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Evaluation of left ventricular diastolic echocardiographic parameters in healthy dogs by pulsed-wave Doppler

Cited by 6 publications

References 10 publications

Strain and strain rate by two-dimensional speckle tracking echocardiography in a maned wolf

Strain and strain rate by two-dimensional speckle tracking echocardiography in a maned wolf

An echocardiographic study of breed‐specific reference ranges in healthy French Bulldogs

Studies on Pulsed-wave Doppler Echocardiographic Parameters of Blood Flow through Mitral, Tricuspid and Aortic Valves in Healthy Indian Spitz Dogs

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