Tag: Brendan P. Phibbs

Definitions Sinus node dysfunction may include sinus bradycardia, sinus pauses, sinus exit block, sinus arrest, tachy-brady syndrome, persistent atrial standstill and chronotropic incompetence. Symptoms, when present, are usually related to cerebral hypoperfusion. These include dizziness, presyncope, and syncope. Other symptoms include congestive heart failure, fatigue, decrease exercise capacity, recurrent falls, confusion, memory loss, and palpitations or stroke (if…