Right Bundle Branch Block (RBBB) is a defect in the heart’s electrical conduction system in which the right ventricle (one of the dog's four heart chambers) is not directly activated by the electric impulses through the right bundle branch. RBBB may be complete or partial in nature.
Often, no specific symptoms are seen that can be attributed to RBB, only those that are related to the underlying disease causing the defect.
Although it may be present in normal dogs, a right bundle branch block is more often associated with congenital (present at birth) heart disease(s). Other typical causes for the defect include:
You will need to give a thorough history of your dog’s health, including the onset and nature of the symptoms, to the veterinarian. He or she will then perform a complete physical examination, as well a biochemistry profile, urinalysis, and complete blood count (CBC) -- the results of which are typically non-specific. However, biochemistry profile may show high levels of potassium.
RBBB is often only found accidentally, perhaps while performing an echocardiogram. In the case of this defect, he or she may identify structural defects in the heart and right-side enlargement. Thoracic and abdominal radiography, meanwhile, may show masses and other abnormalities. If heartworms are the underlying cause, they also may be identified in diagnostic procedures.
a) A cavity in certain animals b) Term refers to a rear chamber in the heart or a cavity in the brain
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
Too much potassium in the blood
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A procedure of imaging internal body structures by exposing film