Remove Dysrhythmia Remove Echocardiogram Remove Ischemia
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A teenager involved in a motor vehicle collision with abnormal ECG

Dr. Smith's ECG Blog

The ECG shows sinus tachycardia with RBBB and LAFB, without clear additional superimposed signs of ischemia. Hopefully a repeat echocardiogram will be performed outpatient. Between 81-95% of life-threatening ventricular dysrhythmias and acute cardiac failure occur within 24-48 hours of hospitalization. No cardiac MRI was done.

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Back to basics: what is this rhythm? What are your options for treating this patient?

Dr. Smith's ECG Blog

We see a regular tachycardia with a narrow QRS complex and no evidence of OMI or subendocardial ischemia. But adenosine only lasts for seconds, and if the dysrhythmia recurs, then the adenosine is gone. Prevent the initiation of the dysrhythmia -- this can be done with a beta blocker by prenenting PACS 2. Adenosine worked.

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An athletic 30-something woman with acute substernal chest pressure

Dr. Smith's ECG Blog

Now you have ECG and troponin evidence of ischemia, AND ventricular dysrhythmia, which means this is NOT a stable ACS. These are reperfusion T-waves (the same thing as Wellens' waves) Echocardiogram Regional wall motion abnormality-distal septum and apex. It they are static, then they are not due to ischemia.

SCAD 52
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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. DISCUSSION: The 12-lead EKG EMS initially obtained for this patient showed severe ischemia, with profound "infero-lateral" ST depression and reciprocal ST elevation in lead aVR.

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Young Man with a Heart Rate of 257. What is it and how to manage?

Dr. Smith's ECG Blog

I have ordered an echocardiogram which will be done today, after that patient can be discharged to home with follow-up in 2 to 3 months." NOTE #3: In the context of a long QTc or ischemia — the finding of ST segment and/or T wave alternans may predict the occurrence of malignant ventricular arrhythmias. The echo was normal.

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New Onset Heart Failure and Frequent Prolonged SVT. What is it? Management?

Dr. Smith's ECG Blog

There is no evidence of infarction or ischemia. Later, he underwent a formal echocardiogram: Very severe left ventricular enlargement (LVED diameter 7.4 There is a large peaked P-wave in lead II (right atrial enlargement) There is left axis deviation consistent with left anterior fascicular block.

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A man in his 70s with weakness and syncope

Dr. Smith's ECG Blog

Formal echocardiogram showed normal EF, no wall motion abnormalities, no pericardial effusion. There were no dysrhythmias on cardiac monitor during observation. The patient proceeded to cath where all coronaries were described as normal with no evidence of any CAD, spasm, or any other abnormality. No more troponins were done.