2020 Bradycardia Defibrillator 
Dr. Smith's ECG Blog
MAY 19, 2020
She was unable to be defibrillated but was cannulated and placed on ECMO in our Emergency Department (ECLS - extracorporeal life support). After good ECMO flow was established, she was successfully defibrillated. There is sinus bradycardia with one PVC. 24, 2020 post ( link to that post given above ). The K was normal.
Dr. Smith's ECG Blog
JULY 21, 2024
He required multiple defibrillations within a period of a few hours. This time, the arrhythmia did not spontaneously terminate — but rather degenerated to VFib, requiring defibrillation. Some episodes of PMVT would terminate spontaneously — but on many occasions, the PMVT degenerated to VFib, requiring defibrillation.
Dr. Smith's ECG Blog
OCTOBER 20, 2024
The arrhythmia spontaneously converted before defibrillation was achieved. Figure-1: Reasons for the varied ECG presentation of acute LMain occlusion — excerpted from Dr. Smith’s 8/9/2019 post ( This Table from My Comment in the January 16, 2020 post ). ECG #3 The above ECG shows a polymorphic VT at a rate of about 180 BPM.
Dr. Smith's ECG Blog
SEPTEMBER 16, 2024
After resuscitation and defibrillation , there were no more episodes of TdP. Below is the patient’s 12 lead ECG following defibrillation. Of note — the QT interval of beat #5 ( blue line ) is markedly prolonged compared to the QT interval in the beginning of the tracing ( red line ). What does this ECG tell you?
Dr. Smith's ECG Blog
JANUARY 23, 2024
She was given CRT-D (Cardiac Resynchronization Therapy-Defibrillator). For example — bradycardia and AV conduction disturbances are not uncommon with Hyperkalemia , with these conduction disturbances most often resolving once serum K+ is corrected. The biopsy was consistent with cardiac sarcoidosis.
Dr. Smith's ECG Blog
MAY 6, 2019
Cardioversion/defibrillation. Bradycardia. A partial list includes the following: Certain drugs ( antiarrhythmics; calcium channel blockers; ß-blockers; antianginals; psychotropic medications; alcohol; cocaine; other drugs ). Acute febrile illness. Variations in autonomic tone. Hypothermia. Ischemia/infarction.
Dr. Smith's ECG Blog
APRIL 29, 2020
She was never defibrillated. 3 of the 4 have similarly bizarre PVCs. == MY Comment by K EN G RAUER, MD ( 4/29/2020 ): == Cardiac Arrest with Bizarre PVCs/Torsades de Pointes: Intriguing case with many interesting features. As was seen in this case — defibrillation and/or overdrive pacing may be needed. What do you think?
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