article thumbnail

What kind of AV block is this? And why does she develop Ventricular Tachycardia?

Dr. Smith's ECG Blog

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. The granulomatous inflammation affects the heart, causing an infiltrative cardiomyopathy The most common manifestations of cardiac sarcoidosis are atrioventricular (AV) block and ventricular tachyarrhythmias (VT).

article thumbnail

ECG Blog #436 — Bigeminy or Alternans?

Ken Grauer, MD

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. And , the patient is older (ie, prone to reduced renal function ) — and he is taking Digoxin.

Blog 159
article thumbnail

The Irate Stellate Ganglion: IL-6 in Neuroinflammation-induced Ventricular Arrhythmias

HeartRhythm

Inflammation within the stellate ganglia has been observed in patients with sudden cardiac death after MI,4,5 long QT syndrome and catecholaminergic polymorphic ventricular tachycardia,6 and electrical storm,7 suggesting a link between inflammation within these ganglia and ventricular arrhythmogenesis.

article thumbnail

Effect of SGLT-2 inhibitors on arrhythmia events: insight from an updated secondary analysis of?>?80,000 patients (the SGLT2i—Arrhythmias and Sudden Cardiac Death)

Cardiovascular Diabetology

The effects of SGLT2i on atrial fibrillation(AF), atrial flutter(AFL), composite AF/AFL, ventricular fibrillation(VF), ventricular tachycardia(VT), ventricular extrasystoles(VES), sudden cardiac death(SCD) and composite VF/VT/SCD were evaluated. RCTs comparing SGLT2i with placebo were included.

article thumbnail

Intramyocardial fibrofatty deposits in ischemic sudden cardiac death

HeartRhythm

Recent studies suggest that intramyocardial adipose tissue facilitates ventricular tachycardia (VT) in subjects with coronary artery disease (CAD) and prior myocardial infarction (MI) scar.1-2

article thumbnail

Potential impact of long-term ambulatory electrocardiographic monitoring on estimated sudden cardiac death risk in childhood hypertrophic cardiomyopathy

HeartRhythm

Identifying children with hypertrophic cardiomyopathy (HCM) at high risk for sudden cardiac death (SCD) is an important part of clinical care.1,2

article thumbnail

Efficacy of Catheter Ablation for Ventricular Tachycardia in Ischemic Cardiomyopathy Patients without an ICD Implantation

HeartRhythm

Implantable cardioverter defibrillator (ICD) prevents sudden cardiac death (SCD) in patients with ischemic cardiomyopathy (ICM). Catheter ablation has been shown to effectively reduce ventricular tachycardia (VT) recurrence, yet its efficacy in patients without an ICD implantation remains uncertain.