Multiprofessional Critical Care Review: Adult 2024 (MCCRCA24ON)-5: Analysis and Therapy of Supraventricular Arrhythmias and Bradyarrhythmias (Sammy Zakaria, MD, MPH)

5: Analysis and Therapy of Supraventricular Arrhythmias and Bradyarrhythmias (Sammy Zakaria, MD, MPH)

Video Transcription

Video Summary

In this video summary, Dr. Sami Zakaria, a cardiologist and critical care physician, discusses the analysis and therapy of supraventricular arrhythmias and bradyarrhythmias. He begins by explaining the significance of these arrhythmias in the ICU setting and their association with increased morbidity and mortality. Dr. Zakaria then provides an overview of how to approach a patient with a supraventricular arrhythmia, stressing the importance of determining the urgency behind management and identifying the underlying cause. He discusses various types of supraventricular tachycardias, including sinus tachycardia, atrial flutter, and atrial tachycardias, and provides strategies for differentiating between them using ECG interpretation and adenosine testing. For treatment, he emphasizes the need to treat the underlying cause and discusses pharmacologic options for rate control, such as beta blockers and calcium channel blockers, as well as rhythm control options, including amiodarone and cardioversion. Regarding bradyarrhythmias, Dr. Zakaria discusses the causes of decreased automaticity and impaired conduction, and provides an approach for diagnosis and management. He covers conditions such as first-degree AV block, second-degree AV block (type 1 and type 2), third-degree AV block, and tachy-brady syndrome. He also highlights the role of pacemakers in the management of these arrhythmias. Dr. Zakaria concludes by discussing digoxin toxicity and its characteristic ECG findings, emphasizing the importance of recognizing and managing this condition. Overall, the video provides a comprehensive overview of supraventricular arrhythmias and bradyarrhythmias, highlighting their significance in the ICU and providing practical approaches to diagnosis and management.

Keywords

supraventricular arrhythmias

bradyarrhythmias

ICU setting

morbidity

mortality

ECG interpretation

pharmacologic options

pacemakers

digoxin toxicity

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