Remove Arrhythmia Remove Bradycardia Remove Cardiomyopathy
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Challenging Arrhythmias — MIS-C Case Report (9-16.1-2024) - NOT_YET_FINISHED

Ken Grauer, MD

For full discussion of the case — CLICK HERE — ECG Rhythm Overview: A 12-year-old boy was admitted to our hospital with severe myocardial dysfunction and chaotic rhythm with tachy- and bradycardic arrhythmias. There definitel are periods of bradycardia (so pacing may be needed for that).

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Normal angiogram one week prior. Must be myocarditis then?

Dr. Smith's ECG Blog

IMPRESSION: The finding of sinus bradycardia with 1st-degree AV block + marked sinus arrhythmia + the change in PR interval from beat #5-to-beat #6 — suggests a form of vagotonic block ( See My Comment in the October 9, 2020 post in Dr. Smith's ECG Blog ). Initial high sensitivity troponin I returned at 6ng/L (normal 0.20

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Long?term outcomes of patients with ventricular arrhythmias and negative programmed ventricular stimulation followed with implantable loop recorders: Impact of delayed?enhancement cardiac magnetic resonance imaging

Journal of Cardiovascular Electrophysiology

Abstract Background Programed ventricular stimulation (PVS) is a risk stratification tool in patients at risk for adverse arrhythmia outcomes. Patients with negative PVS may yet be at risk for adverse arrhythmia-related events, particularly in the presence of symptomatic ventricular arrhythmias (VA).

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A 90-something with acute stroke. She has no chest symptoms. What is the diagnosis?

Dr. Smith's ECG Blog

It turns out that she has hypertrophic cardiomyopathy. Here is the echo report for this visit (after the negative angiogram): Hypertrophic cardiomyopathy with asymmetric septal hypertrophy. I added, "Makes me wonder if this could be myocarditis in a younger adult — maybe even with sinus arrhythmia."

Stroke 74
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How a pause can cause cardiac arrest

Dr. Smith's ECG Blog

The patient was diagnosed with stress cardiomyopathy. Widespread T wave inversions and prolongation of the QT interval is not uncommon in Takotsubo cardiomyopathy. The QTc then gradually shortened over the course of several days as is usual for stress cardiomyopathy. Potassium was 4,8 mmol/l. ( ref 3,5-4,6 mmol/l ).

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Wide complex tachycardia and hypotension in a 50-something with h/o cardiomyopathy -- what is it?

Dr. Smith's ECG Blog

A 50-something male with unspecified history of cardiomyopathy presented in diabetic ketoacidosis (without significant hyperkalemia) with a wide complex tachycardia and hypotension. The fact that he has a cardiomyopathy argues for a more typical ventricular tachycardia, as does the absence of rSR' in lead V1. It is regular.

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What kind of AV block is this? And why does she develop Ventricular Tachycardia?

Dr. Smith's ECG Blog

The granulomatous inflammation affects the heart, causing an infiltrative cardiomyopathy The most common manifestations of cardiac sarcoidosis are atrioventricular (AV) block and ventricular tachyarrhythmias (VT). VT is the second most common presenting arrhythmia. AV block is the first manifestation of CS in more than 30% of patients.