Tag Archives: Dr. Smith’s ECG Blog

The early repolarization experiment

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Any paramedic who has studied the STEMI mimics has heard of the classic benign early repolarization pattern of a "fish-hooked" J-point with upwardly concave (smiley-faced) ST-segment, often best appreciated in lead V4. But, as the excellent work of Stephen Smith, M.D. demonstrates, not all cases of early repolarization present this way, and it can often […]

Left ventricular aneurysm vs. acute anterior STEMI

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Some of you expressed concerns about the possibility of the ECG abnormality we sometimes refer to as left ventricular aneurysm (persistent ST-elevation after previous MI).

Excessive discordance as a marker of acute STEMI in LBBB

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Positively deflected QRS complexes can be expected to show ST-depression and inverted T-waves.

Discordant ST-Segment Elevation in LBBB or Paced Rhythm

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If you’ve been following the Prehospital 12-Lead ECG blog for a while, you know that I’m advocate of using Sgarbossa’s criteria to help identify acute STEMI in the presence of left bundle branch block (LBBB) or paced rhythm. According the Sgarbossa’s original criteria, 5 mm of discordant ST-segment elevation is required to identify AMI in […]

EMS 12-Lead

Cardiac Rhythm Analysis, 12-Lead ECG Interpretation, Resuscitation
Comments
Richard Kenkel
64 y.o. Female with CP – “And then I gave her a NTG…”
Cardiac arrest? Its a RELATIVE contraindication. You need to use clinical gestalt. Her blood pressure is quite high, and her heart rate is average, she would probably tolerate nitro quite well. Provided she's not on beta blockers or calcium channel blocker, orthostatic hypotension etc, from what I can tell she'd compensate just fine. While there…
2014-09-16 02:05:12
Stephen Smith, of Dr. Smith's ECG Blog
59 year old male: chest pressure
Inferolateral MI, not RV (T-wave down in V1)
2014-09-14 18:16:53
Alex
The 360 Degree Heart – Part I
Some models of ECG machines have an option to flip aVR upside down. In this case it looks at +30* and fills in the gap between I and II.
2014-09-14 16:00:21
Lucas
59 year old male: chest pressure
Besides MI and Aortic Dissection, this presentation of acute chest pain and hemodynamic compromise, associated with important dyspnea would concern me for PE, which I think should be properly investigated.
2014-09-14 14:35:36
Joseph Goodson
The 360 Degree Heart – Part I
As a new Paramedic, this information is very useful and helpful. I believe there is more to understanding paramedicine than what can be taught in a class and it takes the initiative of the medic to pursue. Thank you for providing this simple yet understandable concept. Honestly, it never dawned on me how the hexaxial…
2014-09-13 15:27:21
It's OK.
It's OK.
Welcome to the Club
Welcome to the Club
Author Unknown
The Part We Forget
The Part We Forget
The Real Problem With Ray Rice
The Real Problem With Ray Rice

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