EP Quiz Archive
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?
EP Quiz #31
A 42-year-old female with palpitations has a 12-lead ECG showing RP > PR with retrograde P waves. What are the differential diagnoses and how do you distinguish them?
EP Quiz #30
A 61-year-old has complete LBBB with 1st degree AV block. His PR interval is 220 ms. Echo shows severe LV dysfunction. What is the risk of pacemaker dependence post-CRT implant?
EP Quiz #29
A 33-year-old with catecholaminergic polymorphic VT is on high-dose nadolol. He has a recurrent syncopal event during exercise stress testing. What next?
EP Quiz #28
A 58-year-old with hypertensive heart disease has paroxysmal AF. He is on flecainide 100 mg BD. He now presents with haemodynamic instability and wide complex tachycardia.
EP Quiz #27
Identify the tachycardia: narrow complex at 140 bpm, retrograde P waves within the ST segment, 1:1 VA relationship, inducible with a single atrial extrastimulus.
EP Quiz #26
A teenager with Wolff-Parkinson-White syndrome is asymptomatic. His parents are concerned. What is the role of programmed electrical stimulation in risk stratification?