2025 Multiprofessional Critical Care Review: Adult Online-Analysis and Therapy of Supraventricular Arrythmias

Video Transcription

Video Summary

This lecture addresses supraventricular tachycardias (SVTs) and brain arrhythmias common in ICU patients. It emphasizes that arrhythmias arise due to factors like increased adrenergic drive, hypoxia, myocardial infarction, existing cardiac disease, and electrolyte imbalances, all increasing morbidity and mortality. The approach to narrow complex tachycardias involves determining if the rhythm is regular or irregular, and observing the response to adenosine, which helps diagnose and sometimes terminate arrhythmias. Common types include sinus tachycardia, atrial flutter, atrial tachycardia, AV nodal reentrant tachycardia (AVNRT), and AV reciprocating tachycardia (AVRT). Treatment focuses on managing underlying causes, rate control (beta blockers, calcium channel blockers, digoxin, amiodarone), and anticoagulation when appropriate. Bradyarrhythmias result from decreased automaticity or conduction blocks (first to third-degree AV block), with pacemakers often indicated in severe cases. Digoxin toxicity presents with characteristic arrhythmias requiring careful management. The lecture underscores recognition, diagnosis, and tailored treatment strategies for ICU arrhythmias.

Keywords

supraventricular tachycardias

ICU arrhythmias

adrenergic drive

narrow complex tachycardia

adenosine response

bradyarrhythmias

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