Abstract
Now days small animals are been incorporated to the society like new members of the family and one the main affections that they present is heart failure, because of the prevalence of the syndrome, dogs are also used like models for the development of these syndrome. We can define heart failure like a clinic syndrome that is caused by a cardiac illness and it can generate systolic and diastolic dysfunction that can not satisfied the metabolic tissue. This article pretends to make a review of the different models and mechanisms that generates heart failure.