Dr. Smith's ECG Blog

JUNE 2, 2023

She was awake, alert, well perfused, with normal mental status and overall unremarkable physical exam except for a regular tachycardia, possible rales at both bases, some mild RUQ abdominal tenderness. Thus, I believe it is a regular, monomorphic, wide complex tachycardia. Or it could simply still be classic VT. What is the Diagnosis?

Tachycardia 96

Tachycardia Cardiomyopathy Electrocardiogram Article 96

Journal of Cardiovascular Electrophysiology

SEPTEMBER 23, 2024

Abstract Introduction Supraventricular tachycardia (SVT) is a common pediatric arrhythmia. Individuals aged 1–21 years at time of SVT diagnosis initiated on a BB or a CCB between 01/01/2010 and 12/31/2020 were included. Exclusion criteria were pre-excitation, ectopic atrial tachycardia, and hemodynamically significant heart disease.

Pediatrics 40

Pediatrics Tachycardia Academic Arrhythmia 40

Dr. Smith's ECG Blog

FEBRUARY 8, 2015

They had already cardioverted at 120 J, then 200 J, which resulted in the following: Ventricular Tachycardia They then cardioverted at 200 J which r esulted in the same narrow complex rhythm shown above, at 185 beats per minute. This would treat both SVT or sinus tachycardia. I suggested esmolol if the heart rate did not improve.

Tachycardia 52

Tachycardia Chest Pain Pharmacology Myocardial Infarction 52

Journal of Cardiovascular Electrophysiology

DECEMBER 17, 2024

Given the efficacy of other class III agents, it has been used off-label for the treatment of premature ventricular complexes (PVCs) and ventricular tachycardias (VTs). Among the 32 patients with PVCs who successfully started dofetilide, the mean PVC burden decreased from 2010% to 88% at a median follow-up of 2.6 months ( p <.001).

Tachycardia 40

Tachycardia Heart Disease Atrial Flutter Heart Transplant 40

Ken Grauer, MD

MAY 28, 2024

KEY Point: Look for additional simultaneously-recorded leads = “12 Leads are Better than One!” ( ie, For example with tachycardias — the QRS may look narrow if all you have is 1 or 2 leads — whereas if part of the QRS lies on the baseline in the single lead you are looking at, this might be VT! ). 19:50 — Not appreciating statistical odds! (

Blog 143

Blog Arrhythmia Tachycardia CME 143

Journal of Cardiovascular Electrophysiology

FEBRUARY 7, 2024

Chagas disease (ChD) was associated with increased rates of ventricular tachycardia and ventricular fibrillation in ICD patients only in the initial two periods, but there was no statistical difference in the last period. Progressive decline across periods in mortality rates among patients with implantable cardioverter-defibrillator (ICD).

Defibrillator 40

Defibrillator Sudden Cardiac Death Tachycardia Public Health 40

Dr. Smith's ECG Blog

NOVEMBER 19, 2022

Another way that WPW can be concealed is in the very rare (~15% of all WPW patients) retrograde-only conduction, in which the accessory pathway ONLY allows retrograde conduction, which obviously wouldn't show a delta wave on sinus EKG but still predisposes the patient to re-entry tachycardias. 2010 Mar-Apr;43(2):144-5. References: 1.

Tachycardia 52

Tachycardia RN Atrial Fibrillation Cancer 52