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

Dr. Smith's ECG Blog

Learning points: == MY Comment , by K EN G RAUER, MD ( 1/15 /2024 ): == Today's case by Dr. Nossen differs from other cases of AV block we have published over the years in Dr. Smith's ECG Blog — in that the cause of AV block turned out to be CS ( C ardiac S arcoidosis ).

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

Dr. Smith's ECG Blog

I've been working on this a long time, thought about submitting it to a journal, but decided it gets more readers on this blog. The rule of thumb is less accurate, and the risk is higher because a long QT in the presence of bradycardia ("pause dependent" Torsades) predisposes to Torsades. Measure it manually.

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Hyperthermia and ST Elevation

Dr. Smith's ECG Blog

Pediatric and elderly patients were more predisposed to developing an arrhythmic event in the setting of fever [7]. Recently the rate of true arrhythmic events related to fevers in the classic Brugada Type 1 syndrome was explored by Michowitz et al.

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OMI in a pediatric patient? Teenagers do get acute coronary occlusion, so don't automatically dismiss the idea.

Dr. Smith's ECG Blog

Acute coronary syndrome in a pediatric patient? An ECG was perfomed on arrival to our ED: NSR with ST elevation II,III, aVF with reciprocal depression in aVL Would you refer this pediatric patient for emergent PCI? World J Pediatr. The workup at the transferring hospital yielded elevated troponin I at 18.1 Epub 2021 May 20.

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A young F is hyperthermic, delirious, and dry: Fever-induced Brugada? Diphenhydramine toxicity? Tricyclic?

Dr. Smith's ECG Blog

Regardless of further evaluation, she should avoid bradycardia, AV nodal blockers, Na channel blockers, and fevers. --If --Genetic testing could be helpful to confirm the diagnosis and allow for screening of other at-risk family members. --EP EP study to further risk stratify her is recommended, with ICD placement depending on the results.