Bradycardia Defibrillator Stenosis 
Dr. Smith's ECG Blog
JULY 21, 2024
Angiography : LMCA — 90-99% osteal stenosis. LCx — 50-69% stenosis of the 1st marginal branch; with 100% distal LCx occlusion. 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.
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. An elderly woman had sudden ventricular fibrillation. The K was normal.
Dr. Smith's ECG Blog
OCTOBER 20, 2024
The arrhythmia spontaneously converted before defibrillation was achieved. Below is a still image with the red arrow indicating the subtotal LMCA stenosis. As per Dr. Nossen — today's initial ECG ( LEFT tracing in Figure-2 ) shows sinus bradycardia with QRS widening due to bifascicular block ( RBBB/LAHB ).
Dr. Smith's ECG Blog
JUNE 19, 2023
Soon afterward, the patient’s symptoms return along with lightheadedness, bradycardia, and hypotension. The patient has also developed sinus bradycardia, which may result from right coronary artery ischemia to the SA node. The Queen of Hearts agrees: Around this time his initial high sensitivity troponin I resulted at 231 ng/L.
Dr. Smith's ECG Blog
JANUARY 23, 2023
Triage physician interpretation: -sinus bradycardia -lateral ST depressions While there are lateral ST depressions (V5, V6) the deepest ST depressions are in V4. When the ICD was finally interrogated, the syncopal events and shocks correlated with two VF events that were defibrillated successfully. Triage EKG: What do you think?
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