Heart Failure Ivabradine — RACP Adult Medicine MCQ
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Correct answer: B — Ivabradine
Ivabradine selectively inhibits the If current in the sinoatrial node, reducing heart rate without negative inotropic effects. It is indicated for HFrEF patients in sinus rhythm with HR ≥70 bpm despite maximum tolerated beta-blocker (or if beta-blocker contraindicated). The SHIFT trial showed a significant reduction in HF hospitalisation. It should NOT be used in AF.
Reference: NHF/CSANZ – 2022 – Heart Failure Consensus Statement; eTG – 2025 – Cardiovascular