EP Quiz Archive
EP Quiz #25
A 66-year-old post-CABG patient develops 2:1 AV block post-operatively. His HV interval on EP study is 90 ms. What is the prognosis and management?
EP Quiz #24
A 30-year-old with ARVD/C has RV-origin VT. Substrate mapping reveals the triangle of dysplasia. What are the ablation targets? What is the recurrence risk?
EP Quiz #23
A 45-year-old marathon runner has sinus bradycardia at 38 bpm and is asymptomatic. His Holter shows nocturnal pauses of 2.5 seconds. Is pacing indicated?
EP Quiz #22
A 72-year-old with sick sinus syndrome has sinus pauses up to 4 seconds on Holter. He has intermittent dizziness. What pacing mode is most appropriate?
EP Quiz #21
A 50-year-old presents with irregular palpitations. His ECG shows atrial flutter at 300 bpm with variable block. What is the preferred ablation target?
EP Quiz #20
A 60-year-old with ischaemic cardiomyopathy undergoes VT ablation. Activation mapping during stable VT reveals the exit point. What is the ablation endpoint?
EP Quiz #19
Interpret this intracardiac electrogram. A patient with a CRT-D presents with inappropriate shocks. What is the cause and corrective programming?
EP Quiz #18
A long QT ECG is seen in a 19-year-old female started on azithromycin. Her baseline QTc was 430 ms, now 520 ms. What is your immediate management?
EP Quiz #17
A 48-year-old with dilated cardiomyopathy, EF 25%, LBBB with QRS 152 ms is referred. What are the indications for CRT-D? How do you optimise device programming?
EP Quiz #16
A 65-year-old diabetic with LV dysfunction (EF 30%) has non-sustained VT on Holter. His NYHA class is II. Does he qualify for an ICD? What guidelines apply?
EP Quiz #15
A 35-year-old presents with syncope. His 12-lead shows a delta wave with short PR. Accessory pathway localisation on ECG — identify the pathway location.
EP Quiz #14
A 40-year-old female with no structural heart disease has recurrent AVNRT. She had two DC cardioversions in the past year. Is ablation indicated? What are the risks?