Effects of weight loss on the cardiac parameters of obese dogs

Neto, G. B. Pereira; Brunetto, Márcio Antônio; Sousa, Marlos Gonçalves; Carciofí, Aulus Cavalieri; Camacho, Aparecido Antônio

doi:10.1590/s0100-736x2010000200012

Cited by 23 publications

(17 citation statements)

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“…Studies in humans and animals reveal that body weight and obesity can influence ECG tracings (Alpert et al 2001, Talavera et al 2008, Neto et al 2010). In our study, the similarities found while comparing body weight/size of the animals can be attributed to the fact that all animals were standardized and healthy, with no signs of obesity.…”

Section: Discussionmentioning

confidence: 99%

“…They are also more sensitive to cardioactive glycosides than rats and mice, therefore indicated for the investigation of these inotropic agents (Akera et al 1979). Animals ECG patterns can be different accordingly to the body weight and fat deposit, causing cardiac changes that can be seen in the ECG (Neto et al 2010). Therefore the purpose of this study is to evaluate healthy conscious guinea-pig as a model for electrophysiology assessment and to describe normal ECG patterns in controlled laboratory environment using computerized electrocardiography.…”

Section: Introductionmentioning

confidence: 99%

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Computerized electrocardiography in healthy conscious guinea pigs (Cavia porcellus)

et al. 2016

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The purpose of this study is to evaluate healthy conscious guinea pigs as a model for electrophysiology assessment and to describe normal electrocardiographic patterns in controlled laboratory environment, establishing the best QT formula for this method. Electrocardiographic recordings of fifty adult conscious guinea pigs were obtained using a computerized electrocardiography. The electrocardiographic measurements of three different tracings were analyzed. The results obtained established normal mean and range values for the parameters: heart rate, waves and intervals of P-QRS-T deflections, as well as the mean cardiac axis. Groups were separated by body weight: group 1 gathered animals with 500-699g and group 2 with animals 700-900g. No differences were found when measurements were compared between groups, showing no significant difference between weight/ body sizes to the electrocardiographic parameters (P<0.05). The mean corrected QT values (QTc) obtained using diverse formulae were significantly different (P<0.05), were the most consistent was Van der Water (QTcV). QTcV values were strongly correlated (r=98) and 95% confidence interval 185.7 to 195.2ms.Considering its simplicity and reliability, the QTcV was deemed the most appropriate to be used for the correction of QT interval in conscious guinea pigs.The results of this study also suggest that the values found can be used as reference for the species.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Computerized electrocardiography in healthy conscious guinea pigs (Cavia porcellus)

et al. 2016

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“…With advances in information technology, the computerized electrocardiogram has been used in human medicine as an auxiliary diagnostic method and is currently used increasingly in veterinary medicine (Tilley 1981, Andrade et al 2004, Aptekmann et al 2010, Neto et al 2010, Gava et al 2011. According to Tilley (1992), in veterinary medicine, the computerized ECG improved the quality of emergency electrocardiogram services and other advantages including a decrease in the time needed to carry out the exam.…”

Section: Introductionmentioning

confidence: 99%

Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831)

et al. 2013

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Pesq. Vet. Bras. 33(Supl.1):8-14, dezembro 2013 8 RESUMO.-[Avaliação do eletrocardiograma em cutias (Dasyprocta primnolopha, Wagler 1831) não-anestesiadas clinicamente saudáveis.] A cutia é uma das espé-cies mais intensamente caçados em toda a Amazônia e as regiões semi-áridas do nordeste do Brasil. Considerando--se a tendência atual no manejo de animais silvestres em cativeiro, o objetivo deste estudo foi determinar os valores de referência para o coração cutia criadas em cativeiro, com base em avaliações do eletrocardiograma (ECG). Foram selecionadas cutias adultas e sem sinais clínicos de doença cardíaca (n=30). Os animais foram contidos fisicamente e, em seguida, o ECG foi realizado. Medições padronizadas foram tomadas para estabelecer a análise estatística dos dados. Análise do complexo QRS apresentou valores compatíveis com os relatórios pregressos em animais animais de companhia, assim como para os poucos dados disponí-veis para outras espécies selvagens e exóticas, com exceção da onda T, que mostrou amplitude semelhante à onda R em The agouti is one of the most intensely hunted species throughout the Amazon and the semiarid regions of north-eastern Brazil. Considering the current tendency of wild animal management in captivity, the objective of this study was to determine heart reference values for agouti raised in captivity, based on electrocardiographic assessments (ECG). Adult agouti were selected without clinical signs of heart disease (n=30). The animals were restrained physically and then the ECG was performed. Standardized measurements were taken to establish the statistical analysis of the data. Analysis of the QRS complex showed values compatible with previous reports in peer animals and the limited data available for other wild and exotic species, except for the T wave that showed similar amplitude to the R wave in all the animals studied. The data obtained provided the first reference values for ECG tracings in agouti, contributing to a better understanding of heart electrophysiology in identifying myocardial pathology in these animals. Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831) todos os animais estudados. Os dados obtidos permitiram a aquisição dos primeiros valores de referência para os traçados de ECG em cutias, contribuindo para uma melhor compreensão eletrofisiologia cardíaca, na identificação de miocardiopatia nesses animais.

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“…Desta forma, considerou-se um bom método de avaliação corporal para classificação da obesidade nos animais do presente estudo, uma vez que foi realizado em um único momento em dois grupos distintos, sem avaliar a perda de peso no mesmo animal. Todos os valores da pressão arterial sistólica encontram-se dentro do intervalo de referência para a espécie e foram semelhantes aos descritos previamente por outros autores, situando-se entre 110mmHg a 160mmHg (Stepien et al 2003, Brown et al 2007, Pereira Neto et al 2010. Ao se comparar os valores obtidos pelos dois métodos indiretos de mensuração da PAS, encontrou-se valores inferiores significativos pelo método oscilométrico em cães obesos.…”

Section: Discussionunclassified

Avaliação da pressão arterial sistêmica em cães obesos: comparação entre os métodos oscilométrico e doppler ultrassônico

et al. 2014

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Obesity is the most common nutritional problem in dogs and it can cause various harmful effects on animal health. However, the effect of this condition on systolic blood pressure (SBP) in obese dogs is controversial. The indirect method of measuring PAS is the most commonly used in veterinary medicine for the diagnosis of systemic hypertension, because it is more practical and easy to access. There is little scientific information about the comparison of the two non-invasive methods of measurement of blood pressure in obese dogs. Therefore, the objective of this study was to evaluate the SBP in obese dogs by comparing both indirect methods of measuring blood pressure, with oscillometric and doppler vascular in order to verify the differences in blood pressure values, but also the best method to assess the SBP dogs in this body score condition. The study complain blood pressure measurement of 50 dogs, with were divided in obese dogs with mean body condition score (BCS) of 8.42±0.50 (n=25) and dogs with ideal BCS of 4.56±0.51 (n=25). At comparison of blood pressure values, SBP values obtained by doppler method (152±16mmHg) were higher than the oscillometric (136±11mmHg). Correspondence analysis determined by multivariate statistical analysis showed correlation between body condition and the procedure of the SBP. These findings suggest that the indirect method doppler can better reflect the SBP in obese dogs.INDEX TERMS: Obesity, canine, hypertension, indirect method.

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Effects of weight loss on the cardiac parameters of obese dogs

Cited by 23 publications

References 16 publications

Computerized electrocardiography in healthy conscious guinea pigs (Cavia porcellus)

Computerized electrocardiography in healthy conscious guinea pigs (Cavia porcellus)

Electrocardiogram assessment in non-anaesthetized clinically healthy agouti (Dasyprocta primnolopha, Wagler 1831)

Avaliação da pressão arterial sistêmica em cães obesos: comparação entre os métodos oscilométrico e doppler ultrassônico

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