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Paced QRS morphology mimicking complete left bundle branch block induced by right ventricular pacing is associated with pacing?induced cardiomyopathy

Journal of Cardiovascular Electrophysiology

Methods We retrospectively screened 2009 patients who underwent pacemaker implantation from 2010 to 2020 in seven institutions. This study aimed to investigate the association between paced QRS mimicking a complete left bundle branch block (CLBBB) and PICM development.

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New lessons, from the old chapters of Atrial fibrillation

Dr. S. Venkatesan MD

2010 Jun;3(3):230-6. Epicardial Fat and Atrial Fibrillation: A Review. J Atr Fibrillation. 2012 Apr 4;4(6):483.) Left atrial adiposity is a distinct entity, but rarely diagnosed (.Circ Circ Arrhythm Electrophysiol. Impact on AF therapeutics We are in aggressive space age & AI era. AF management is no exception.

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A Patient with Vertigo

Dr. Smith's ECG Blog

My Thoughts on the Initial ECG: Systematic interpretation of ECG #1 shows: Sinus bradycardia at ~55-60/minute — normal intervals ( PR-QRS-QTc ) — normal frontal plane axis ( about +20 degrees ) — no chamber enlargement. At this point — I learned a bit more about today's patient: The patient is a man who had an inferior STEMI in 2010.

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Unconscious + STEMI criteria: activate the cath lab?

Dr. Smith's ECG Blog

This ECG shows a sinus bradycardia with a normal conduction pattern (normal PR, normal QRS, and normal QTc), normal axis, normal R-wave progression, normal voltages. Hypothermia can also produce bradycardia and J waves, with a pseudo-STEMI pattern. Heart Rhythm 2010 Hudzik B, Gasior M. There is marked sinus bradycardia.

STEMI 52
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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

PVCs N ot generally considered abnormal ECG findings: Isolated PAC, First Degree AV Block, Sinus bradycardia at a rate of 35-45, and Nonspecific ST-T abnormalities (even if different from a previous ECG). Thus, if there is documented sinus bradycardia, and no suspicion of high grade AV block, at the time of the syncope, this is very useful.

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Rates of and Indications for Subcutaneous ICD Extraction: A Multihospital Healthcare System Analysis

Journal of Cardiovascular Electrophysiology

Methods A retrospective analysis of all patients who underwent S-ICD implantation between 2010 and 2022 at a single multihospital healthcare system was performed. years was 5.9%, with the most common indications for extraction being the need for bradycardia pacing, infection, and inappropriate shocks due to oversensing.