Left Main Occlusion – A True or False (Lumen) STEMI Diagnosis?

An elderly man, with history of hypertension and obstructive sleep apnea, woke up with severe chest pain, nausea, and sweating. Upon arrival of the emergency medical team, he had low blood pressure (85/40  mm Hg), with no significant difference between upper limbs, no signs of congestion, and palpable bilateral upper and lower limb pulses. An electrocardiogram (ECG; Figure 1A) was performed, revealing ST-segment elevation in aVR and aVL and diffuse ST-segment depression, which was interpreted as an ST-segment elevation myocardial infarction (STEMI) equivalent.
Source: The Journal of Emergency Medicine - Category: Emergency Medicine Authors: Tags: Visual Diagnosis in Emergency Medicine Source Type: research