Assessment and Quantification of Acquired Valvular Regurgitation in Dogs

Madron, Éric de

doi:10.1016/b978-0-323-31650-7.00011-9

Cited by 1 publication

(7 citation statements)

References 47 publications

(88 reference statements)

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“…An echocardiography Doppler device (MyLab 40, Esaote ® ) was used, with electronic sector scan transducers of 3-11 MHz and electrocardiographic monitoring. The electrodes were placed on the distal part of the fore legs and hind legs (Madron, 2015). All the exams were recorded for subsequent evaluations.…”

Section: Echocardiographymentioning

confidence: 99%

“…In the bidimensional mode the heart chambers were evaluated and especially in the right transversal parasternal view, the diameter of the Left Atrium (LA) and the dimension of the root of the aorta (AO) were measured. In the Doppler colour flow mapping mode, in the left apical four-chamber parasternal view, the presence of Mitral Regurgitant Flow (MRF) to the left atrium was evaluated (Madron, 2015). Also in the same view, the mitral flow waves (E and A waves) and the Isovolumetric Relaxation Time (IVRT) were observed and in the tissue Doppler imaging mode, the Em, Am and S waves of the septal segments of the left ventricle were measured (Chetboul, 2015).…”

Section: Echocardiographymentioning

confidence: 99%

“…Chronic mitral valve endocardiosis, also known as chronic degenerative mitral valve disease, is the most common cause of Heart Failure (HF) in dogs and is responsible for the majority of all heart problems in this species (Ware, 2014). The CDMVD is caused by a thickening and shortening of the valves, sometimes accompanied by nodules on the valve leaflets (Ware, 2014;Madron, 2015). Currently, one of the principal methods of investigating CDMVD is Doppler echocardiography.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, one of the principal methods of investigating CDMVD is Doppler echocardiography. This exam is a non-invasive method of diagnosing morphological, functional and haemodynamic changes capable of determining the etiology of different heart problems (Madron, 2015). Severe cases of mitral regurgitation may present a regurgitant valve that corresponds to a high proportion of the total volume of blood ejected by the left ventricle, which can severely impair cardiac output and lead to signs of HF (Ware, 2014;Madron, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…This exam is a non-invasive method of diagnosing morphological, functional and haemodynamic changes capable of determining the etiology of different heart problems (Madron, 2015). Severe cases of mitral regurgitation may present a regurgitant valve that corresponds to a high proportion of the total volume of blood ejected by the left ventricle, which can severely impair cardiac output and lead to signs of HF (Ware, 2014;Madron, 2015). In humans with clinically established HF, it has been widely suggested that many symptoms are attributable to peripheral functional abnormalities located mainly in the skeletal muscle and not to central cardiac haemodynamic measurements, obtained by echocardiography (Franciosa et al, 1981;Mancini et al, 1986;Wilson et al, 1993;Asian J. Anim.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Muscle Blood Flow in Dogs with Chronic Degenerative Mitral Valve Disease under Treatment

Nogueira¹,

Basso²,

Pereira³

2015

Asian J. of Animal and Veterinary Advances

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In humans with clinically established heart failure, it has been widely suggested that many symptoms are attributable to peripheral perfusion abnormalities located, above all, in the skeletal muscle and not to central cardiac haemodynamic measurements. In veterinary patients, little is known about the real associated of muscle blood flow alterations in different clinical disorders. In dogs, the most common cause of heart failure is Chronic Degenerative Mitral Valve Disease (CDMVD). Thus, the aim of this work was to compare different quantitative measures related to peripheral muscular blood flow in healthy dogs and in dogs with advanced CDMVD under treatment. For this, the transcutaneous Doppler ultrasound, that is a non-invasive quantitative method to evaluate blood flow changes, was used. The data were obtained from femoral artery of seven healthy dogs and seven dogs with CDMVD that were receiving cardiovascular treatment at home. The results demonstrated that the resistance parameters of the femoral blood flow were significantly higher in dogs with CDMVD, compared with those of healthy dogs. The mean values of the femoral blood volume were lower in dogs with CDMVD in relation to healthy dogs. In conclusion, this study suggests that despite the cardiac therapy, the dogs may have variations in muscle blood flow that could contribute to the progression of heart disease and impair peripheral perfusion.

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Section: Echocardiographymentioning

confidence: 99%

Section: Echocardiographymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%