EP Quiz Archive
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?
EP Quiz #13
A 75-year-old with a dual-chamber pacemaker presents with 3-second pauses. The device interrogation shows appropriate sensing but inhibited pacing. What is the likely cause?
EP Quiz #12
A 68-year-old with AF is on anticoagulation. Her CHA₂DS₂-VASc score is 4. She has persistent AF with rate control failure. When is rhythm control preferred?
EP Quiz #11
A 22-year-old athlete develops syncope during exertion. His ECG shows the Brugada type 1 pattern after fever. Genetic testing is pending. How do you manage?
EP Quiz #10
A 55-year-old post-MI patient is referred for VT ablation. Endocardial mapping reveals a large area of low voltage in the inferior wall. What are the ablation strategies?
EP Quiz #9
A 28-year-old male presents with palpitations and pre-syncope. 12-lead ECG shows a narrow complex tachycardia at 180 bpm. What is the diagnosis and management?