Complications
Complication
Timeframe
Likelihood
variable
high
A common complication. Patients who experience syncope with bradycardia benefit from an implantable pacemaker to regulate the heart rhythm.
variable
high
Some patients with longstanding bradycardia may develop symptoms of heart failure owing to decreased cardiac output. Heart failure should be managed as for heart failure in any other condition.
variable
high
With complete heart block, patients may develop polymorphic ventricular tachycardia or ventricular fibrillation, which can cause sudden cardiac death.
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