There are six parts to this answer

With no prior history of cardiopulmonary disease, you should immediately wonder if this ECG represents an acute right ventricular problem, something you'd expect primarily from an acute pulmonary event. Indeed a stat echo showed RV enlargement, with leftward deviation of the interventricular septum and an inferred pulmonary systolic pressure of 64mmHg.

Note the large defect on the patient's perfusion lung scan, rendering the scan a high probability for acute pulmonary embolus.

Check future ECG's of the Week for other ECG abnormalities observed in the setting of PE and more on the ECG of RVH.

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Address questions about the ECG’s by E-mail to:

Dr. Winston swinston@michiganheart.com

Forwinstons@mediaone.net

(send to both addresses for a more prompt response)

Dr. Judge rjudge@umich.edu

Dr. Lehmann lehmann@umich.edu