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

Dr. Smith's ECG Blog

Smith comment: This patient did not have a bedside ultrasound. Had one been done, it would have shown a feature that is apparent on this ultrasound (however, this patient's LV function would not be as good as in this clip): This is recorded with the LV on the right. What should be done? Should the cath lab be activated?

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A man in his 30s with cardiac arrest and STE on the post-ROSC ECG

Dr. Smith's ECG Blog

In terms of ischemia, there is both a signal of subendocardial ischemia (STD max in V5-V6 with reciprocal STE in aVR) AND a signal of transmural infarction of the inferior wall with Q wave and STE in lead III with reciprocal STD in I and aVL. Now another, with ultrasound. The rhythm is atrial fibrillation. What is the Diagnosis?

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What do heart tests tell us?

Dr. Sanjay Gupta

This is an ultrasound (a bit like the type that we use on pregnant women to look at the baby). An ultrasound will allow you to visualise the heart, measure the sizes of the chambers, assess the heart valves and work out how well the heart functions as a pump. It is still possible to have ischemia without coronary disease.

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What happens when a patient with LAD OMI does not go immediately to the cath lab?

Dr. Smith's ECG Blog

Case continued: All the physicians were very worried about LAD occlusion and recorded a couple bedside ultrasounds: This shows a profound apical and septal wall motion abnormality, perfectly consistent with LAD OMI. These ultrasounds confirm LAD occlusion. Pain will resolve with completed infarct or with resolution of ischemia.

STEMI 40
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A 40-Something male with a "Seizure," Hypotension, and Bradycardia

Dr. Smith's ECG Blog

RCA ischemia often results in sinus bradycardia from vagal reflex or ischemia of the sinus node. They did not have an ultrasound on the ambulance (some local crews are starting to utilize POC limited US in our service areas). Case continued EMS immediately transported, activated the cath lab and gave 324 mg aspirin en route.

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Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.

Dr. Smith's ECG Blog

Check : [vitals, SOB, Chest Pain, Ultrasound] If the patient has Abdominal Pain, Chest Pain, Dyspnea or Hypoxemia, Headache, Hypotension , then these should be considered the primary chief complaint (not syncope). Evidence of acute ischemia (may be subtle) vii. Aortic Dissection, Valvular (especially Aortic Stenosis), Tamponade.