ECG Guru

MARCH 30, 2025

I will start the discussion by admitting that I am not an expert of electrophysiology or complex dysrhythmias. This would demand further investigation, probably with a temporary transvenous pacemaker as a safeguard measure. I hope some of our dysrhythmia Gurus will delve into the rhythm and maybe even provide laddergrams.

Dysrhythmia 64

Dysrhythmia RN Chest Pain Electrophysiology 64

HeartRhythm

MARCH 28, 2025

Dr Victor Parsonnet was instrumental in founding the North American Society of Pacing and Electrophysiology (NASPE), now known as the Heart Rhythm Society (HRS).

Heart Rhythm 40

Heart Rhythm Electrophysiology Pacemaker 40

Circulation: Arrhythmia and Electrophysiology

NOVEMBER 27, 2024

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

Electrophysiology 40

Electrophysiology Pacemaker Arrhythmia Circulation 40

Frontiers in Cardiovascular Medicine

JULY 8, 2024

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.

Pacemaker 52

Pacemaker CMS Arrhythmia Transplant 52

Journal of Cardiovascular Electrophysiology

MARCH 31, 2025

Garweg, Ventricular Leadless Pacemakers: Data from the MAUDE DatabaseEditorial Commentary, Journal of Cardiovascular Electrophysiology 35, no. RETRACTION: C. 12 (2024): 2402-2404, [link].

Pacemaker 40

Pacemaker Article Electrophysiology 40

Journal of Cardiovascular Electrophysiology

MARCH 31, 2025

Hauser, A Comparison of Procedure-Related Adverse Events Between Two Right Ventricular Leadless Pacemakers, Journal of Cardiovascular Electrophysiology 35, no. Sharkey, D. Strepkos, M. Alexandrou, R. Abdelhadi, and R. 12 (2024): 2397-2401, [link].

Pacemaker 40

Pacemaker Article Electrophysiology 40

Dr. Smith's ECG Blog

FEBRUARY 18, 2024

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?

Pacemaker 109

Pacemaker Blog Atrial Fibrillation Electrophysiology 109

Journal of Cardiovascular Electrophysiology

MARCH 27, 2024

Abstract Introduction Pacemaker implantation can be challenging in patients with congenital heart disease. Methods and Results In a patient with Ebstein disease and symptomatic sinus node dysfunction, despite multiple attempts, the Micra® pacemaker could not be implanted in the severely dilated right ventricle.

Pacemaker 49

Pacemaker Congenital Heart Disease Congenital Heart Disease 49

Journal of Cardiovascular Electrophysiology

JANUARY 22, 2024

Abstract Transcatheter aortic valve replacement (TAVR) often leads to conduction abnormalities, necessitating pacemaker implantation. Prevention focuses on tailoring TAVR to individual electrophysiological and anatomical profiles. Procedural factors like transfemoral access and self-expandable valves also increase this risk.

TAVR 40

TAVR Risk Factors Pacemaker Aortic valve 40

HeartRhythm

MARCH 19, 2025

The human sinoatrial node (SAN) pacemaker is a complex structure located at the right atrium- superior vena cava (SVC) junction.

Electrophysiology 40

Electrophysiology Pacemaker 40

Journal of Cardiovascular Electrophysiology

DECEMBER 7, 2023

Abstract Whether a pacemaker can sense concealed ventricular extrasystoles still remains debatable since its occurrence was first proposed in 1972. It must remain a diagnosis of exclusion if it really exists.

Pacemaker 40

Pacemaker Article 40

Journal of Cardiovascular Electrophysiology

JANUARY 30, 2025

Methods and Results This report describes the world's first three cases of dual-chamber leadless pacemaker implantation via the right internal jugular vein. Conclusions The intrajugular approach is a feasible, safe, and efficient alternative to femoral access for any patient receiving or upgrading to an Aveir DR.

Pacemaker 40

Pacemaker 40

Journal of Cardiovascular Electrophysiology

MARCH 10, 2025

ABSTRACT Leadless pacemakers as the Medtronic Micra AV, have improved cardiac pacing by reducing complications associated with traditional systems. However, achieving high atrioventricular synchrony (AVS) remains a challenge, especially in patients with a high pacing burden.

Tricuspid 40

Tricuspid Pacemaker 40

Journal of Cardiovascular Electrophysiology

MARCH 31, 2025

LP, leadless pacemaker; PCT, pacing capture threshold; AUC, area under the curve. ABSTRACT Introduction Leadless pacemakers (LPs) are a valuable treatment for bradycardia, with the Aveir offering advanced features, including a protective sleeve and active fixation.

Pacemaker 40

Pacemaker Bradycardia Outcomes Article 40

Journal of Cardiovascular Electrophysiology

JANUARY 20, 2025

ABSTRACT Background Permanent pacemaker (PPM) implantation is a commonly performed procedure. Methods YouTube was searched on October 19, 2022, for PPM implantation and Pacemaker. Patients increasingly use the Internet for information on medical interventions.

Pacemaker 40

Pacemaker Article 40

Journal of Cardiovascular Electrophysiology

NOVEMBER 5, 2024

Postprocedure, frequent significant sinus pauses required a pacemaker. Abstract Introduction This case report highlights the novel role of His-bundle pacing (HBP) from right atrium, not just for preserving cardiac function, but also for avoiding interference with TriClip devices. HBP was chosen to avoid lead complications. Follow-ups over 2.5

Pacemaker 40

Pacemaker Cardiac Function Tricuspid 40

Journal of Cardiovascular Electrophysiology

JANUARY 24, 2025

ABSTRACT Introduction A leadless pacemaker (LLPM) was recommended for a patient with intermittent complete heart block and near-syncope. Methods and Results Delivery of LLPM is through a large sheath that has limited deflection and steerability.

Pacemaker 40

Pacemaker Tricuspid Anatomy 40

Journal of Cardiovascular Electrophysiology

OCTOBER 30, 2024

Abstract Introduction Currently, there are two approved single chamber leadless pacemakers (LP) in the United States (US), Micra VR™; approved since 2016 and AVEIR VR™; approved in 2022. A potential complication of LPs is dislodgement and/or embolization (D/E) during or after implant.

Embolism 40

Embolism Pacemaker 40

Journal of Cardiovascular Electrophysiology

NOVEMBER 27, 2023

To identify patients in whom leadless pacemakers are able to guarantee this atrio-ventricular synchrony, we explored correlations among echocardiographic measures of left atrial (LA) size and function (doppler parameter and strain) with A4 amplitude in patients implanted with new generation Micra-AV device.

Pacemaker 40

Pacemaker Article 40

HeartRhythm

JUNE 4, 2024

One day, an 83-year-old man was admitted to the Royal Melbourne Hospital with a nonfunctioning pacemaker. About 36 hours later, the pacemaker started to pace the heart 280 times/min. Dr Peter and his team saved the patient’s life by physically cutting the wire.1

Pacemaker 40

Pacemaker Electrophysiology Hospital 40

Journal of Cardiovascular Electrophysiology

JANUARY 11, 2024

Due to atrial and ventricular pacing dependence, a comprehensive congenital care team concluded the need for lead extraction and replacement of pacemaker via leadless peacemaking device. Laser-lead extraction and temporary atrial pacemaker placement was performed.

Pacemaker 40

Pacemaker Congenital Heart Disease Congenital Anatomy 40

Journal of Cardiovascular Electrophysiology

DECEMBER 17, 2024

Abstract Introduction The Medtronic Micra VR and Abbott AVEIR VR are the leadless pacemakers (LPM) currently available in the United States (US). Micra VR employs fixation tines and the AVEIR VR uses an active fixation helix.

Pacemaker 40

Pacemaker Cardiac Arrest Article 40

Circulation: Arrhythmia and Electrophysiology

FEBRUARY 28, 2024

Circulation: Arrhythmia and Electrophysiology, Ahead of Print. HCN inhibitors targeted pacemaker-like activity in mutant ACMs. Immunoblotting evaluated protein expression associated with calcium handling and pacemaker-nodal expression.RESULTS:ACMs harboringHRASvariants displayed higher beating rates compared with healthy controls.

Tachycardia 40

Tachycardia Pacemaker Electrophysiology Arrhythmia 40

Journal of Cardiovascular Electrophysiology

DECEMBER 17, 2024

Methods Thirty-seven patients with a pacemaker indication for bradycardia or cardiac resynchronization therapy underwent LBBAP implantation. ECG, vectorcardiogram, ECG belt and UHF-ECG signals were recorded during RVP, LVSP and LBBP, and intrinsic activation.

Electrophysiology 40

Electrophysiology Bradycardia Pacemaker Article 40

HeartRhythm

FEBRUARY 27, 2024

While these are well tolerated by the young athlete, there is evidence that generally from the fifth decade of life onwards, such arrhythmias can degenerate into pathological symptomatic bradycardia requiring pacemaker therapy.

Bradycardia 40

Bradycardia Electrophysiology Pacemaker Arrhythmia 40

Journal of Cardiovascular Electrophysiology

FEBRUARY 13, 2024

Abstract Introduction Clinical outcomes of long-term ventricular septal pacing (VSP) without His-Purkinje capture remain unknown. This study evaluated the differences in clinical outcomes between conduction system pacing (CSP), VSP, and right ventricular pacing (RVP).

Bradycardia 40

Bradycardia Physiology Pacemaker Heart Failure 40

Journal of Cardiovascular Electrophysiology

DECEMBER 15, 2023

Impact of preceding systolic heart failure on risk of pacemaker-induced cardiomyopathy Abstract Background Pacemaker-induced cardiomyopathy is a well described phenomenon in patients with preserved ejection fraction at the time of permanent pacemaker implant.

Heart Failure 40

Heart Failure Preserved Ejection Fraction Pacemaker Cardiomyopathy 40

Journal of Cardiovascular Electrophysiology

JANUARY 13, 2025

Cardioneuroablation could be a reasonable alternative to pacemaker implantation in symptomatic carotid sinus syndrome. Abstract Introduction Carotid sinus syndrome (CSS), characterized by exaggerated vagal responses leading to asystolic pauses with carotid sinus massage (CSM), often necessitates pacemaker implantation.

Quality of Life 40

Quality of Life Pacemaker Ablation Article 40

AMS Cardiology

JUNE 11, 2024

Electrophysiology: This specialized area focuses on heart rhythm problems, like atrial fibrillation (AFib). We offer various diagnostic and treatment options for aFib including pacemaker implantation if needed.

Exercise 52

Exercise AFIB Cardiac Rehabilitation Blood Pressure 52

SoftCath

JANUARY 2, 2022

One-Step Solution with Various Modules Whether you’re looking to manage Coronary, Non-Coronary, Electrophysiology or other requirements, SoftCath has got you covered. With SoftCath, you can easily carry out Electrophysiology, manage data recovery, and clinical research. It’s a single tool capable of replacing 5-8 different ones.

Electrophysiology 52

Electrophysiology Technology Pacemaker Blog 52

Journal of Cardiovascular Electrophysiology

OCTOBER 16, 2024

All patients had a reduced LVEF of 36%–50% and underwent pacemaker implantation. This study evaluated the impact of LBBAP on patients with an LVEF of ≤50% and dependent on ventricular pacing. Methods and Results Thirty-seven patients with atrioventricular block underwent successful LBBAP.

Arrhythmia 61

Arrhythmia Heart Failure Cardiomyopathy Pacemaker 61

Journal of Cardiovascular Electrophysiology

MARCH 3, 2024

Complete left bundle branch block (CLBBB)-like QRS morphology of right ventricular pacing at pacemaker implantation satisfying the American Heart Association/American College of Cardiology Foundation/Heart Rhythm Society criteria of CLBBB was associated with development of pacing induced cardiomyopathy.

Cardiomyopathy 40

Cardiomyopathy Pacemaker Heart Rhythm Atrial Fibrillation 40

Journal of Cardiovascular Electrophysiology

MARCH 4, 2025

ABSTRACT Introduction Atrial fibrillation (AF) is the most common arrhythmia, and atrioventricular (AV) node ablation with pacemaker implantation is a therapeutic option for refractory cases. However, AV node ablation in patients with bioprosthetic tricuspid valves poses technical challenges.

Tricuspid 40

Tricuspid Atrial Fibrillation Ablation Pacemaker 40

Journal of Cardiovascular Electrophysiology

NOVEMBER 26, 2024

The primary outcome was clinically actionable event that was a composite of the newly detected atrial fibrillation (AF), pacemaker or implantable cardioverter defibrillator (ICD) implantation, catheter ablation, and anticoagulation initiation. vs. 15.8%; p =0.001), pacemaker implantation (11.2% The mean age was 64.3

Atrial Fibrillation 40

Atrial Fibrillation Defibrillator Pacemaker Ablation 40

Circulation

NOVEMBER 23, 2023

This study aimed to explore the effect of frequent PACs from different sites on atrial remodeling in a swine model.METHODS:Forty swine underwent baseline electrophysiologic studies and echocardiography followed by pacemaker implantations and paced PACs (50% burden) at 250-ms coupling intervals for 16 weeks in 4 groups: (1) lateral left atrium (LA) (..)

Atrial Fibrillation 40

Atrial Fibrillation Electrophysiology Pacemaker Circulation 40

Journal of Cardiovascular Electrophysiology

JANUARY 29, 2025

Methods This prospective observational study included patients with complete left bundle branch block (CLBBB) and cardiac resynchronization therapy (CRT) indication, as well as patients with QRSd<120ms and pacemaker indication. The absolute values of I+aVL, II+III+aVF, and V1+V2+V3+V4+V5+V6 RWA were defined as X-, Y-, and Z-axis RWA.

Cardiac Function 40

Cardiac Function Pacemaker Physiology Outcomes 40

Journal of Cardiovascular Electrophysiology

MARCH 10, 2024

Abstract Introduction Transsubclavian venous implantation of the Aveir leadless cardiac pacemaker (LCP) has not been previously reported. Methods and Results Three cases of transsubclavian implantation of the Aveir LCP are reported.

Transplant 40

Transplant Pacemaker 40