Atrial Flutter-Ablation — EECC MCQ

Instant feedback + full explanation. One question, done properly.

ModerateCardiologyAtrial Flutter-AblationEECC

A 62-year-old man with new atrial flutter (typical) is symptomatic despite rate control. Which definitive therapy has highest success?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — Catheter ablation of the cavotricuspid isthmus

Explanation lettering: E = shown as A · A = shown as C · C = shown as D · D = shown as E

For typical cavotricuspid isthmus-dependent flutter, catheter ablation has high success and is preferred for symptom control. Antiarrhythmic drugs (A,B) have lower long-term efficacy and more toxicity. AV nodal ablation without pacing (D) is not feasible. Rate control only (E) leaves symptoms.

Reference: ACC/AHA/ACCP/HRS Guideline (2023): Atrial Fibrillation/Flutter Management (Secondary Source)