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Clinical Articles / BY: Jasmine Grewal, MD, FRCPC September 2016
... 20% of patients develop complete atrioventricular node conduction block by adulthood and require pacemaker ... In patients with prior surgery in the region of the sinus node or its arterial supply (e.g., patients who have ... of bradycardia with sinus node dysfunction is high.[ 32 ] Approximately 50% of adults with CHD develop an atrial ...