Sick Sinus Syndrome

• This is a blanket term used to describe multiple abnormalities of the SA node involving impulse formation and conduction disturbances.

Causes

Myocardial diseases, idiopathic, breed predispositions (e.g. miniature schnauzer)

ECG: Variable depending on the specific SA abnormality

Treatment

Surgical implantation of a pacemaker; +/- antiarrhythmic treatments