January 16, 2015

Clinical Vignette 17

Rather than a case description, it’s just an ECG this time, obtained from a middle-aged man almost two decades ago.

ECG Quiz.

ECG Quiz.

Question: What is the ECG diagnosis?

[Updated 24th January 2015]

The ECG shows short voltages on all leads, and electrical alternans (i.e. alternating taller and shorter voltages) on the long lead 2 at the bottom. These are signs of significant pericardial effusion, and electrical alternans is also an ECG sign for cardiac tamponade. The case is further described in the subsequent clinical vignette.

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  1. […] ECG from Clinical Vignette 17 was actually obtained from the patient described […]



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Clinical vignette


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