atrial fibrillation2 Flashcards
what are the two long term strategies for AF
- rhythm control
2. rate control
what is the preferred long term strategy for long term AF?
why?
rate control is preferred because drugs are tolerated better (less side effects)
what long term strategy is to leave patient in AF, and protect against complicatoins (stroke and V fib)?
rate control
what is the goal heart rate for patients on rate control treatment for AF?
110 bpm
what are two main drug classes that control ventricular rate slowing conduction through AV node
B-blockers
Ca- channel blockers
why is digoxin not typically prefered for rate control?
because act parasympathetically;
won’t work for active people alone (given in combo with BB or CaB)
what is always part of rate control therapy?
- control ventricular rate
2. protect from stroke
what rate control class would be prefered in a patient with asthma
Ca channel blocker
what type of long term treatment of AF has goal of NSR
rhythm control
what AF tx drug is not for maintenence therapy, just for cardioversion
ibutilide
what must be done in every patient after conversion to NSR
4 weeks of anticoagulation minimum
becausing of stunting of myocardial tissue take s a while to recover
what chronic maintenance sinus rhythm control therapy drugs are preferred if no comorditities are present
dronedarone
flecainide
propafenone
sotalol
what chronic maintenance sinus rhythm control therapy drugs can’t be used with hypertension and thickining of ventricular walls (LVH)
dronedarone
flecainide
propafenone
sotalol
what is catherter ablation?
what type of patients can have this?
cathater inserted in groin that burns out any arrhythmia causing tissue.
any patient despite comorbitity
what chronic maintenance sinus rhythm control therapy drug is preferred in patients with hypertension and LVH
amiodorone
