Tag Archives: strain pattern

90 year old male CC: "Possible stroke" – Conclusion

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This is the conclusion to 90 year old male CC: "Possible stroke". You might want to go back and familiarize yourself with the details of the case. Let's take another look at the 12-lead ECG. Now with the computerized interpretive algorithm. On Facebook I had asked whether or not this ECG showed signs of ischemia. […]

63 year old male CC: Shortness of breath – Conclusion

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This is the conclusion to 63 year old male CC: Shortness of breath. You may wish to go back and read the original post. Let's take another look at the 12-lead ECG. Now with the computerized interpretation. This ECG shows severe left ventricular hypertrophy with a "strain pattern" or secondary ST-T wave abnormality. A "strain […]

Left ventricular hypertrophy – Part II

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I know I promised to go over the voltage criteria for left ventricular hypertrophy (LVH) but I lied! If you’re really interested you can check out the Wikipedia article HERE, the ECG Learning Center HERE, or Tom Evans’ crib sheet HERE. Personally? I think it’s a distraction. As far as STEMI recognition goes, it misses […]

Left ventricular hypertrophy – Part I

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One of the most confusing ST-elevation mimics for paramedics is the “strain pattern” (or repolarization abnormality) occasionally found with left ventricular hypertrophy. This is important because left ventricular hypertrophy is one of the most common causes of ST segment elevation in chest pain patients. Many 12 lead ECG classes teach paramedics to recognize the voltage […]

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Comments
Kevin
44 year old male CC: Palpitations
Why on earth would you risk VF, by giving Adenosine to rule out rhythms.. This is dangerous, and foolish. There might be a slight chance that this is WPW.. You might as well just give him Cardizem, they are both AV nodal blockers... I don't know why the AHA even added this stupid idea..
2014-10-22 13:31:06
Vince DiGiulio
The 360 Degree Heart – Part II
It is standard practice in electrocardiography to label the first 90 degrees counter-clockwise from "zero" that way. When you see a patient with "left axis deviation" you'll see that their measured QRS axis is somewhere between -30 and -90 degrees. Imagine if you saw someone with a mean QRS axis at 5 degrees. Now imagine…
2014-10-21 14:00:37
Bryan
The 360 Degree Heart – Part II
I don't understand why (-)III and aVL are be labeled -60 and -30 degrees instead of 300 and 330 degrees?
2014-10-21 13:43:29
The 360 Degree Heart – Part II | EMS 12 Lead
The 360 Degree Heart – Part I
[…] first post in our “360 Degree Heart” series attempted to visualize how the different frontal plane […]
2014-10-21 12:50:56
Eric Strong
Axis Determination – Part VI
This is a great discussion of axis determination. One minor suggestion: I think it's potentially misleading to refer to an axis between 0 and -30 as "physiologic left axis deviation", since "axis devitation" implies deviation from normal, and axes between 0 and -30 are perfectly normal, (depending on age and body habitus). It may be…
2014-10-05 17:09:00

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