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11. Drugs Used in Chronic Congestive Heart Failure: Ivabradine: CVS Pharmacology

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11. Drugs Used in Chronic Congestive Heart Failure: Ivabradine: CVS Pharmacology
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Ivabradine is a unique medication used in the management of chronic congestive heart failure (CHF), specifically in patients with reduced ejection fraction (HFrEF) and persistent sinus tachycardia (heart rate ≥70 bpm) despite optimal beta-blocker therapy 🩺💓. Ivabradine selectively inhibits the funny current (If) in the sinoatrial node, reducing heart rate without affecting myocardial contractility or blood pressure 🌬️💊. By lowering the heart rate, it improves myocardial efficiency, reduces oxygen demand, and allows for better ventricular filling during diastole, ultimately alleviating symptoms and reducing the risk of hospitalization in CHF patients.

Ivabradine is particularly useful in patients who cannot tolerate higher doses of beta-blockers or those contraindicated for beta-blocker therapy. Common side effects include bradycardia, visual disturbances (phosphenes), and hypotension, which necessitate careful patient monitoring. It is not recommended for patients with atrial fibrillation or severe liver impairment. Ivabradine complements standard CHF therapies like ACE inhibitors, ARBs, beta-blockers, and aldosterone antagonists, contributing to better outcomes and improved quality of life. 🌿✨

#Ivabradine #ChronicCHFManagement #CVSPharmacology #HeartFailureDrugs 💓 #HeartRateReduction #MedicalEducation #MBBSNotes #StudySmart #CardiacCare 🩺 #HeartHealthEssentials #SafeCardiacTherapy #InnovativePharmacology #SinusNodeRegulation
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