SciELO - Scientific Electronic Library Online

vol.64 issue2Colostrum quality evaluation and passive immunity transfer in crossbred Holstein Zebu cattleDelay of beginning to FTAI on reproductive performance during to mating season of beef lactating cows author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Print version ISSN 0102-0935


CAVALCANTI, G.A.O. et al. Experimental acute myocardial infarction in dogs: clinic, enzymatic, electrocardiographic and echocardiographic studies. Arq. Bras. Med. Vet. Zootec. [online]. 2012, vol.64, n.2, pp.286-294. ISSN 0102-0935.

Ischemic events in dogs are uncommon; however, this may be under-reported. The myocardial infarction was created by left anterior descending coronary ligation in healthy mongrel dogs in clinical and laboratorial exams. These dogs were evaluated clinically, electrocardiography (ECG), through ambulatory electrocardiography (AE), echocardiography (ECO), creatine kinase enzyme (CK), creatine kinase MB fraction enzyme (CK-MB) and histopathologically. Even in these animals we observed the occurrence of arrhythmia after intramyocardial injection by AE. The animals exhibited left ventricular chamber enlargement and increase in myocardial performance index at ECO. In ECG, there were deviations in ST segment in the precordial leads V1 and V2. CK and CK-MB showed high increase, CK and CK-MB peaks occurred six and 12 hours after infarction, respectively. Histopathology of the infarction in the inferior wall of the left ventricle and replacement of muscle tissue by fibrous tissue were seen. Furthermore, intramyocardial injection that may be used for therapeutic purposes was evaluated by AE, which demonstrated no increase in the ventricular arrhythmias. Therefore, myocardial infarction in dogs can be detected with the tests available and intramyocardial injection can be used as a therapeutic way.

Keywords : dog; myocardial infarct; canine, ambulatory electrocardiography; creatine kinase; myocardial injection.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License