2020 Bradycardia Defibrillator 
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
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
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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