Remove Arrhythmia Remove Electrophysiology Remove Pacemaker
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UC San Diego Health First in Region to Implant Dual Chamber, Leadless Pacemaker

DAIC

UC San Diego Health is the first in San Diego to successfully implant the world’s first dual chamber and leadless pacemaker system to help treat people with abnormal heart rhythms. Holding the device and pictured above is Ulrika Birgersdotter-Green, MD, cardiologist and director of pacemaker and ICD services at UC San Diego Health.

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Tiny pacemakers can safely stabilize newborns' hearts for up to two years

Medical Xpress - Cardiology

A pacemaker modified for newborns' tiny bodies safely and effectively stabilized their heart rhythms for up to two years, according to new research published in Circulation: Arrhythmia and Electrophysiology.

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Stem cell-derived cardiomyocytes expressing a dominant negative pacemaker HCN4 channel do not reduce the risk of graft-related arrhythmias

Frontiers in Cardiovascular Medicine

ConclusionsWhile genetic silencing of the pacemaker ion channel HCN4 suppresses the automaticity of hPSC-CMs in vitro, this intervention is insufficient to reduce VT risk post-transplantation in the pig MI model, implying more complex mechanism(s) are operational in vivo.

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A fascinating electrophysiology case. What is this wide complex tachycardia, and how best to manage it?

Dr. Smith's ECG Blog

She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Seeing as the patient has a single chamber ICD/pacemaker, pacing the ventricle will also lead to AV dyssynchrony that will compromise ventricular filling, further impairing hemodynamics. small squares in width (260ms).

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His-Ventricular Interval and Incident Pacemaker Implant in Over 3000 Ambulatory Patients Undergoing Invasive Electrophysiologic Procedures

Circulation: Arrhythmia and Electrophysiology

Circulation: Arrhythmia and Electrophysiology, Volume 17, Issue 12 , Page e013285, December 1, 2024.

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Acute dyspnea in an older woman, is it OMI?

Dr. Smith's ECG Blog

Written by Willy Frick A woman in her 90s with a history of end stage renal disease and complete heart block status post dual chamber pacemaker presented from home with acute onset dyspnea. As per Dr. Frick — pacemaker spikes are best seen in lead aVL of ECG #1. ECG is shown below. What do you think?

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HRAS-Mutant Cardiomyocyte Model of Multifocal Atrial Tachycardia

Circulation: Arrhythmia and Electrophysiology

Circulation: Arrhythmia and Electrophysiology, Ahead of Print. HCN inhibitors targeted pacemaker-like activity in mutant ACMs. Electrophysiological assessment revealed an increased number of pacemaker-like cells with elevated funny current densities among mutant ACMs.