SVT AND AF Flashcards
RF for AF?
advanced age hypertension DM obesity COPD, OSA heart failure CKD family history
pathophysiology of AF symptoms?
rapid ventricular rates
loss of atrial contribution to ventricular filling
predisposition to thrombus formation in the left atrial appendage where flow is relatively stagnant
this is the most frequent manifestation of embolization?
ischemic stroke
how does AF present?
majority of patients are asymptomatic
palpitations with an irregularly irregular and often rapid pulse
SOB, lightheadedness, weakness, fatigue, malaise
best management of AF?
anticoagulation, rate or rhythm control, CV RF assessment, prevention of systemic embolization
options for rate control?
medications
- beta blockers
- non dihydropyridine
- verapamil
- dilitiazem
- digoxin
percutaneous catheter ablation
surgical procedure
indications for rhythm control?
new onset or first episode of symptomatic AF, treat with electricity
symptomatic paroxysmal AF
recurrent episodes of symptomatic persistent AF
AF with difficult rate control
AF results in depressed ventricular function that aggravates heart failure
younger patients
what type of control is indicated, rate or rhythm?
rhythm
meds for rhythm control?
amiodorone dofetiide flecainide propafenone sotalol dronedarone
catheter ablation of AF used for?
isolated the left atrial regions around the PV and abolishes the ability of triggering foci in these regions to initiate AF
surgical ablation of AF used for?
surgical removal of the left atrial appendage
as part of the Maze procedure
agents for anticoagulation?
vitamin K antagonist, warfarin
factor Xa inhibitor, dabigatran
CI to DOACs?
renal dysfunction poor compliance severe liver failure pregnancy bleeding
