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Abstract 4145609: The Cardiac Conundrum of Cannabis: A Case of Junctional Bradycardia Triggered by Cannabis Use

Circulation

Circulation, Volume 150, Issue Suppl_1 , Page A4145609-A4145609, November 12, 2024. Electrocardiogram (ECG) and telemetry revealed junctional bradycardia with heart rate in 30s and sinus pauses (5-7 seconds). Initial laboratory analysis was unremarkable. He was admitted for further workup of bradycardia.

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STEMI with Life-Threatening Hypokalemia and Incessant Torsades de Pointes

Dr. Smith's ECG Blog

There is also bradycardia. Bradycardia puts patients at risk for "pause-dependent" Torsades de Pointes. Torsades in acquired long QT is much more likely in bradycardia because the QT interval following a long pause is longer still. mEq of K pushed fast and circulated theoretically would raise serum K immediately by 1.0

STEMI 52
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Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.

Dr. Smith's ECG Blog

PVCs N ot generally considered abnormal ECG findings: Isolated PAC, First Degree AV Block, Sinus bradycardia at a rate of 35-45, and Nonspecific ST-T abnormalities (even if different from a previous ECG). Thus, if there is documented sinus bradycardia, and no suspicion of high grade AV block, at the time of the syncope, this is very useful.