EP Quiz Archive
EP Quiz #43
A 44-year-old with Lenegre-Lev disease has progressive RBBB + LAFB. His PR is 280 ms and H-V is 80 ms. What is the annual risk of complete heart block?
EP Quiz #42
A 56-year-old with dual AV nodal physiology has AVNRT with a fast-slow variant. The retrograde P waves precede the QRS. What is the ablation target?
EP Quiz #41
A 29-year-old with focal atrial tachycardia originating from the right pulmonary vein-atrial junction. Map-guided ablation is planned. What are the anatomical landmarks?
EP Quiz #40
A 71-year-old with atrioventricular block 2:1 and no structural heart disease. HV interval is 76 ms on EP study. Is prophylactic pacing indicated? Which lead position?
EP Quiz #39
A 38-year-old with idiopathic VF survives a cardiac arrest. Genetic panel reveals a SCN5A mutation. His Brugada pattern is inducible with procainamide. What is the management?
EP Quiz #38
A 52-year-old with cardiac sarcoidosis has non-sustained VT and EF 40%. Cardiac MRI shows extensive LGE. PET scan shows active inflammation. What is your approach?
EP Quiz #37
Identify the mechanism: a wide complex tachycardia at 170 bpm with VA dissociation and QRS morphology identical to sinus rhythm. What is the diagnosis?
EP Quiz #36
A 47-year-old with persistent AF undergoes pulmonary vein isolation. After 6 months, AF recurs at 3 months. How do you manage recurrent AF post-ablation?
EP Quiz #35
A 64-year-old has had a VVI pacemaker for 10 years. He now has AV block with pacemaker dependency. Upgrade to which device and via which approach?
EP Quiz #34
A 17-year-old with HCM and VF arrest is referred for ICD. His family history includes sudden death in two relatives. What are the programming considerations in young ICD recipients?
EP Quiz #33
A 55-year-old woman has frequent PVCs (22% burden) with RBBB morphology and superior axis. She is asymptomatic. When is ablation recommended for idiopathic PVCs?
EP Quiz #32
A patient with VT after amiodarone toxicity. Thyroid function is abnormal. He has visual disturbance and peripheral neuropathy. What are safe antiarrhythmic alternatives?