Summary: Supraventricular Arrhythmias

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Atrial Fibrillation is prevalent and clinically significant conditions in cardiology. Clinical pharmacists play a critical role in the management of these arrhythmias, ensuring optimal treatment outcomes for patients. Understanding the clinical presentation, pathophysiology, diagnostic approach, pharmacotherapy, and key guidelines is essential for providing comprehensive care.
Atrial Fibrillation can present with a range of symptoms, including palpitations, irregular heart rate, shortness of breath, and syncope. Several risk factors, such as advanced age, hypertension, and structural heart disease, contribute to their development. Key guidelines, such as ACC/AHA/HRS and ESC guidelines, provide evidence-based recommendations for the management of atrial fibrillation.
AV nodal reentrant tachycardia is the most common type of paroxysmal supraventricular tachycardia
- It involves reentry through dual AV nodal pathways with different electrophysiologic properties
- Patients present with sudden onset/offset palpitations, normal QRS complexes, heart rates 140-250 bpm
- Adenosine terminates AVNRT by transiently blocking AV nodal conduction
- Definitive treatment is catheter ablation of the slow pathway within the AV node

Emergency Medicine: Cardiology 213