2020 Defibrillator Tachycardia 
Ken Grauer, MD
JUNE 27, 2024
IMPRESSION: Given the presence of a wide tachycardia — with 2 distinct QRS morphologies, and no sign of P waves — a presumed diagnosis of B i D irectional Ventricular Tachycardia has to be made. Despite prolonged resuscitation with multiple defibrillation attempts — the patient could not be saved. =
Dr. Smith's ECG Blog
JANUARY 23, 2024
Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. She was given CRT-D (Cardiac Resynchronization Therapy-Defibrillator). During the next 24 hours, she experienced periods of complete AV block with a ventricular escape rhythm in the 20s. She was started on isoprenalin (isoproterenol).
HeartRhythm
APRIL 30, 2024
Short-long-short (S-L-S) electrocardiographic cycle length patterns are associated with incidence of ventricular tachycardia (VT) and ventricular fibrillation (VF). It is also recognised that pacemakers can facilitate these cycle length sequences, and that the observation of these sequences can predict future VT/VF events.
Open Heart
AUGUST 25, 2023
Background Consensus guidelines support the use of implanted cardioverter-defibrillators (ICD) for primary prevention of sudden cardiac death in patients with either non-ischaemic or ischaemic cardiomyopathy with left ventricular ejection fraction (LVEF) ≤35%. vs 65.4%, p<0.0001), more often white (87.5% vs 38.2%, p<0.0001).
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). In particular — QRS alternans during narrow SVT rhythms has been associated with reentry tachycardias.
Dr. Smith's ECG Blog
JUNE 14, 2024
The team immediately paged cardiology, concerned for polymorphic ventricular tachycardia. Since sinus conducted QRS complexes cannot co-exist together with ventricular tachycardia, this must all be artifact. The November 10, 2020 post — for PTA. The October 17, 2020 post — for a 70-year old woman with " Artifactual VT ".
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 ). He required multiple defibrillations within a period of a few hours. An ICD ( Implantable Cardioverter Defibrilator ) was placed prior to discharge. What do you think?
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