Remove AFIB Remove Physiology Remove Tachycardia
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A fascinating electrophysiology case. What is this wide complex tachycardia, and how best to manage it?

Dr. Smith's ECG Blog

She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Answer : The ECG above shows a regular wide complex tachycardia. Said differently, the ECG shows a rather slow ventricular tachycardia with a 2:1 VA conduction. Cardiac output (CO) was being maintained by the tachycardia.

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How Wearable Tech Can Help Monitor Your Heart Health

MIBHS

The Role of Wearable Technology in Heart Health Wearable tech is designed to monitor physiological data and provide actionable insights to users. Detection of Irregular Heart Rhythms Devices such as the Apple Watch or Fitbit Sense can detect irregular heart rhythms, including atrial fibrillation (AFib).

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Cardiomatics guide: Analyzing arrhythmias made easy

Cardiomatics

Then, the current flows to an area known as the bundle of His, which divides into two branches (LBB and RBB) and is the only physiological pathway connecting the atria with the ventricles. Sinus tachycardia – sinus rhythm above 100 bpm is a sinus tachycardia. AFIB/AFL – atrial fibrillation or atrial flutter episodes.

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Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.

Dr. Smith's ECG Blog

2) Tachycardia to this degree can cause ST segment changes in several ways. First , there can simply be diffuse ST depressions (which obligates reciprocal STE in aVR) associated with tachycardia which are not indicative of ischemia. Sometimes you must correct the rhythm to see what lies underneath. Is this inferor STEMI?

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

Dr. Smith's ECG Blog

I sent it to 2 of my ECG nerd colleagues with no clinical information whatsoever, who instantly said: "Looks like afib with subendocardial ischemia and right heart strain pattern." "I The ECG accurately reflects the physiologic state of the underlying myocardium, but there is always more than one possible etiology of that physiologic state.

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QT Correction Formulas Compared to The Rule of Thumb ("Half the RR")

Dr. Smith's ECG Blog

Answer : you must treat the patient's underlying condition causing sinus tachycardia, and repeat the ECG at the lower heart rate. They measured QTc while patients were in Afib and then again after conversion, when they were in sinus rhythm. I (Smith) measure the QT at 320 ms The Bazett-corrected QTc is divided by square root of 0.36