Defibrillator Pulmonary Tachycardia 
Dr. Smith's ECG Blog
APRIL 2, 2024
He was defibrillated, but they also noticed that he was being internally defibrillated and then found that he had an implantable ICD. He was unidentified and there were no records available After 7 shocks, he was successfully defibrillated and brought to the ED. Tachycardia exaggerates ST Elevation in LBBB and Paced rhythm 5.
Dr. Smith's ECG Blog
JANUARY 2, 2025
CT of the chest showed no pulmonary embolism but bibasilar infiltrates. Because she has cardiomyopathy and ventricular dysrhythmias, the pacer included an Implanted Cardioverter-Defibrillator (ICD) Echo 6 days later after CRT: Normal estimated left ventricular ejection fraction. Even with tachycardia and a paced QRS duration of ~0.16
Dr. Smith's ECG Blog
OCTOBER 23, 2023
She was successfully revived after several rounds of ACLS including defibrillation and amiodarone. An Initial ECG was performed: Initial ECG: Sinus tachycardia with prolonged QT interval (QTc of 534 ms by Bazett). On arrival to the ED the patient was intubated with normal vital signs. No ischemic ST changes. Teaching Points: 1.
HeartRhythm
SEPTEMBER 4, 2023
Over the past years, patients with tetralogy of Fallot (TOF) have experienced numerous improvements in different treatment modalities consisting of a mixture of surgical procedures, transcatheter interventions including ablation therapy, and implantable cardioverter-defibrillator implantation procedures.
Dr. Smith's ECG Blog
SEPTEMBER 29, 2024
This usually represents posterior OMI, but in tachycardia and especially after cardiac arrest, this could simply be demand ischemia, residual subendocardial ischemia due to the low flow state of the cardiac arrest. This prompted cath lab activation. On arrival to the ED, this ECG was recorded: What do you think?
All About Cardiovascular System and Disorders
MARCH 20, 2024
Thrombus can sometimes occur when there is a central venous catheter or a multiple pacemaker or defibrillator leads there that can cause thrombus formation. Right atrial hypertrophy as in tricuspid stenosis, pulmonary stenosis and pulmonary hypertension. But in a VSD with pulmonary hypertension A wave is not prominent.
Dr. Smith's ECG Blog
OCTOBER 10, 2022
It was reportedly a PEA arrest; there was no recorded V Fib and no defibrillation. The morphology of V2-V4 is very specific in my experience for acute right heart strain (which has many potential etiologies, but none more common and important in EM than acute pulmonary embolism). CT angiogram showed extensive saddle pulmonary embolism.
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