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

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A visit to Johns Hopkins #EMSToday2015 | EMS 12 Lead
Episode #11 – Are we harming patients with oxygen?
[…] might remember Mike from one of our most popular EMS 12-Lead podcasts Episode #11: Are we harming patients with oxygen?¬†We finished up the night with food and adult beverages in the […]
2015-02-25 14:33:03
Rollo
The Trouble with Sinus Tachycardia
Had a pt today with a rate @ and around 160, it was indeed sinus tachycardia. The tachycardia was secondary to a stimulant which caused over stimulation of sympathetic nervous system ie sympathomimetic O.D. The treatment was fluid and a benzo. Problem solved.
2015-02-25 00:14:18
Jeff Reader
The 12 Leads of Christmas: V3
When looking at how the heart sits in the chest and how things are named remember they were probabily named during autopsys when the cadaver was on its back.
2015-02-24 16:55:04
darren
58 year old female CC: Chest pain
I would be inclined to ignore QTC as rate is above 100 and unreliable to interpret less than 50 or more than 80. ST segments are interesting as is the history. PE was my first impression AnterioSeptal MI second impression but I'm inclined to consider LV Aneurysm as third Impression as no reciprocal changes?
2015-02-24 04:01:24
Joe
Adenosine given for a narrow-complex tachycardia over 150
The initial impression of this pt, to me, is not immediately of a PE (besides that tachycardia and shallow, rapid breathing). It's at the end of the case that we learn that pt experienced a PE that was "blocking much of both pulmonary arteries". Pt is complaining of CP, near syncope, tachycardia, tachypnea, shallow breathing.…
2015-02-23 09:46:25

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