2011 Bradycardia Tachycardia 
Dr. Smith's ECG Blog
APRIL 15, 2019
Here was his initial ED ECG: There is sinus tachycardia at a rate of about 140 There is profound ST Elevation across all precordial leads, as well as I and aVL. I said I think there is a fixed stenosis in the LAD and the tachycardia and stress caused a type 2 STEMI.
Dr. Smith's ECG Blog
JULY 21, 2024
This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). There was no evidence bradycardia leading up to the runs of PMVT ( as tends to occur with Torsades ). He required multiple defibrillations within a period of a few hours.
Dr. Smith's ECG Blog
NOVEMBER 24, 2017
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. 6) Use a different rule of thumb for bradycardia : Manually approximate both the QT and the RR interval. 3) At heart rates below 60, far more caution is due. which is 0.6
Dr. Smith's ECG Blog
FEBRUARY 20, 2025
There was never ventricular fibrillation (VF) or ventricular tachycardia (VT), no shockable rhythm. Here is a similar case: Collapse, Ventricular Tachycardia, Cardioverted, Comatose on Arrival. Agitation, Confusion, and Unusual Wide Complex Tachycardia. There is sinus tachycardia at ~115/minute.
Dr. Smith's ECG Blog
FEBRUARY 6, 2025
During observation in the ED the patient had multiple self-terminating runs of Non-Sustained monomorphic Ventricular Tachycardia (NSVT). Below in Figure-5 is a 10-minute continuous lead II recording on oral Flecainide, now showing sinus bradycardia without a single PVC! Potassium and magnesium serum levels were normal.
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