17.12.13 Flashcards
Does MAT need anticoagulation?
No
Diff btw FAT and SVT due to reentry
FAT terminates in a QRS complex
Ventricular rate in non paroxysmal junctional tachycardia
70-130
Ventricular rate in focal junctional tachycardia
110-250
Regularisation of RR interval in AF
junctional tachycardia
Rx of non paroxysmal junctional tachy due to digitalis toxicity
phenytoin
DD for SVT with retrograde P waves and RP=PR
Atrial flutter with 2:1 AV block AVRT FAT Junctional tachycardia Atypical AVNRT
Retrograde p waves with AV wenkebach
Focal atrial tachycardia
Dabigatran is eliminated by
kidneys
Switching from warfarin to dabigatran
stop warfarin and start dabigatran when INR is less than 2
Dabigatran should be started _______ hrs before switching from parenteral anticoagulant
0-2hrs
When switching back to parenteral anticoagulant from dabigatran a gap of _______ hrs is required
12-24 hrs
site of re entry in typical atrial flutter
Cavo tricuspid isthmus
Atrial flutter mimics
parkinson
infusion pumps
Rapid ventricular rate in Atrial flutter
accessory pathway
thyrotoxicosis
Most effective rhythm control drug for atrial flutter
ibutilide
uncommon types of atrial flutter
odd conduction ratios like 1:1 ,3:1,5:1
cause of atrial flutter with 1:1 conduction
class 1A or Class 1C antiarrythmic agent use
size of delta wave and site of bypass tract
small- left sided
large- right sided
What should be suspected in pts of WPW syndrome with rt sided bypass tract
Ebstein anomaly
Cardiac diseases associated with pre excitation?
ebstein anomaly
MVP
hypertrophic cardiomyopathy
Ascultatory changes in pre excitation
rt sided: soft s1,reverse splitting of S2
lt sided: loud s1,wide fixed split of S2
drug of choice for wide complex AVRT
procainamide
