Remove Ischemia Remove Pulmonary Remove Stenosis
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Elder Male with Syncope

EMS 12-Lead

Many of the changes seen are reminiscent of LVH with “strain,” and downstream Echo may very well corroborate such a suspicion, but since the ECG isn’t the best tool for definitively establishing the presence of LVH, we must favor a subendocardial ischemia pattern, instead. The CXR demonstrated no pulmonary edema. Type I ischemia.

Ischemia 116
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An undergraduate who is an EKG tech sees something. The computer calls it completely normal. How about the physicians?

Dr. Smith's ECG Blog

This EKG is diagnostic of transmural ischemia of the inferior wall. If it is angina, lowering the BP with IV Nitroglycerine may completely alleviate the pain and the (unseen) ECG ischemia. Or is it a very tight stenosis that does not allow enough flow to perfuse myocardium that has a high oxygen demand from severely elevated BP?

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ECG in LMCA Stenosis

All About Cardiovascular System and Disorders

Such a pattern is consistent with significant left main coronary artery stenosis. Clinical evaluation and X-Ray chest showed features of pulmonary edema. Angiography done after initial stabilization showed severe stenosis of distal left main coronary artery. ST segment elevation is noted in aVR.

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ECG with Aslanger's Pattern. CT Pulmonary Angiogram Reveals LAD Ischemia (Septal Transmural). But this is not Contradictory.

Dr. Smith's ECG Blog

This suggests diffuse subendocardial ischemia. However, along with that subendocardial ischemia, there is also STE in lead III with reciprocal ST depression in aVL, and some STE in V1. If there is also subendocardial ischemia, the ST depression vector remains leftward, with a reciprocal ST Elevation vector also to the right.

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Diffuse Subendocardial Ischemia on the ECG. Left main? 3-vessel disease? No!

Dr. Smith's ECG Blog

A transthoracic echocardiogram showed an LV EF of less than 15%, critically severe aortic stenosis , severe LVH , and a small LV cavity. The patient was transported to the CCU for further medical optimization where a pulmonary artery catheter was placed. If you see this, you should Doppler the valve.

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Chest discomfort and a dilated right ventricle. What's going on?

Dr. Smith's ECG Blog

There is normal R-wave progression in the precordial leads with no evidence of ischemia. large ASD, partial anomalous pulmonary venous return, significant tricuspid regurgitation, carcinoid valvular disease, etc,) 2) Conditions causing pressure overload of the RV. Any cause of pulmonary hypertension. What do you think?

Pulmonary 116
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50 yo with V fib has ROSC, then these 2 successive ECGs: what is the infarct artery?

Dr. Smith's ECG Blog

This usually represents posterior OMI, but in tachycardia and especially after cardiac arrest, this could simply be demand ischemia, residual subendocardial ischemia due to the low flow state of the cardiac arrest. This rules out subendocardial ischemia and is diagnostic of posterior OMI. V4-5 continue to show STD. TIMI-0 flow.