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the County Consult

A Cook County Hospital Emergency Medicine Blog for up-to-date medicine and more.

Figure 1. Index EKG

Heart of the Matter: A Toxic Tachycardia

January 12, 2026

A 49-year-old male with a history of hypertension, hyperlipidemia, and a history of opioid use disorder presents to the emergency department. The tech hands you this EKG (Figure 1) and says, “Hey doc, this patient states he has palpitations, they are going to R1.”

Taylor Wahrenbrock MD, Michael Hohl MD, Michael Nelson MD, and Ari Edelheit MD

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In Cardiology, Toxicology Tags Toxicology, Cardiology, The Toxic Shelf
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Figure 1. Index EKG

Heart of the Matter: WCT

January 12, 2026

The patient is a 69-year-old female with past medical history of remote myocardial infarction status post stent placement 19 years ago, who is presenting for concern of chest pain. She states the pain started approximately 30 minutes prior to arrival and has shortness of breath as well as chest pressure. The pain radiates down her left arm.

Erica Dolph MD and Ari Edelheit

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In Cardiology Tags Cardiology
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Figure 1. Initial arrhythmia detected on telemetry

Heart of the Matter: Non-Sustained Wide Complex Tachycardia

December 10, 2025

A 74 year old male with history of STEMI s/p PCI with DES of LAD and RI, HFrEF (EF 20-25%), sick sinus syndrome s/p DC-PPM, atrial flutter, hypertension, insulin-dependent diabetes, severe PAD s/p right IR SFA stent, and pancreatic insufficiency presenting for hypotension from general surgery clinic. The patient is brought to the resuscitation bay and while you are waiting for your work-up the monitor alarms and shows the following (Figure 1).

Michael Hohl MD and Ari Edelheit MD

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In Cardiology, Critical Care Tags Cardiology
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