Open Heart

JULY 17, 2023

Bradyarrhythmia and atrial fibrillation (AF) incidence are reported in up to 16% and 13%, respectively. Objective We conducted a systematic review evaluating AF burden and bradycardia requiring permanent pacemaker (PPM) implantation and report any predictive risk factors identified.

Bradycardia 52

Bradycardia Atrial Fibrillation Pacemaker Risk Factors 52

ECG Guru

AUGUST 3, 2023

Here is a Pacemaker-ECG with no signs of PM-malfunction: Beat A is an intrinsic beat (atrial fibrillation). Beat B is a pseudofusion beat. Beat C is a fully paced beat. Beat D is a fusion beat. Ventricular fusion is the electrical summation of an intrinsic beat of the heart and depolarization from a pacing stimulus.

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Pacemaker Atrial Fibrillation 52

DAIC

JANUARY 29, 2025

16, 2025 Primary results from the DEFINE AFib clinical study show the Medtronic LINQ family of insertable cardiac monitors (ICM), paired with a novel algorithm, were able to detect atrial fibrillation episodes and properly risk stratify patients as high risk prior to an AF-related healthcare utilization 80% of the time. 2024, May 15).

AFIB 52

AFIB Atrial Fibrillation Quality of Life Heart Rhythm 52

HeartRhythm

DECEMBER 18, 2024

The tracings (Figure 1) are taken during cryoablation in the right superior vein for paroxysmal atrial fibrillation. Phrenic nerve pacing was performed with a duodecapolar catheter at 10mA, 2ms.

Atrial Fibrillation 45

Atrial Fibrillation Pacemaker 45

Dr. Smith's ECG Blog

JULY 5, 2018

PMH: Known paroxysmal Atrial fib. He is usually is in sinus rhythm as far as he knows, but he cannot subjectively feel atrial fibrillation, so he is never completely certain when he is in sinus or atrial fib. Here is his ECG: Atrial Fib with a Ventricular Response of about 66. He immediately completely recovered.

Atrial Fibrillation 52

Atrial Fibrillation AFIB Bradycardia Pacemaker 52

Journal of Cardiothoracic Surgery

JULY 2, 2024

Mehods We retrospectively identified patients aged over 70 years with Atrial Fibrillation (AF) from 2011 to 2017 who had two or more other cardiac procedures. No differences observed in freedom from stroke (p = 0.80) or permanent pacemaker (p = 0.33) between the groups. Cox-Maze IV AF ablation.

Atrial Fibrillation 52

Atrial Fibrillation Ablation Heart Rhythm Pacemaker 52

HeartRhythm

APRIL 30, 2024

Repetitive Non-reentrant Ventriculoatrial Synchrony (RNRVAS) is a rare phenomenon seen in dual chamber pacemakers with atrial tracking.

Atrial Fibrillation 40

Atrial Fibrillation Pacemaker Tachycardia 40

HeartRhythm

APRIL 30, 2024

Atrioventricular junction (AVJ) ablation is reserved for patients with refractory uncontrolled atrial fibrillation despite antiarrhythmic drug use or ablation. Atrial lead implant is uncommon during pacemaker implant at the time of AVJ ablation.

Atrial Fibrillation 40

Atrial Fibrillation Ablation Pacemaker 40

Journal of Cardiovascular Electrophysiology

APRIL 10, 2025

ABSTRACT Background Despite leadless pacemakers (LPMs) showing promise, real-world data comparing them to transvenous pacemakers (TV-VVI) are insufficient and often contradictory, especially in patients without major comorbidities like heart failure. Objectives Comparing LPMs with TV-VVIs in real-world patients without HF.

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Pacemaker Heart Failure Atrial Fibrillation Bradycardia 40

CardioBrief

AUGUST 30, 2018

After she returned home she developed atrial fibrillation, and then much more. Editor’s note: 86-year-old Nina Mishkin was still healthy and active when she went to Dublin, Ireland last September. “I never felt particularly vulnerable and fragile before,” she writes. ” I am grateful to Nina for giving.

Atrial Fibrillation 52

Atrial Fibrillation Heart Rhythm Heart Failure Pacemaker 52

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

Dr. Smith's ECG Blog

MAY 21, 2023

Here is the first ED ECG: COMPUTER INTERPRETATION: Electronic Atrial Pacemaker. It is NOT only atrial paced, it is ventricular paced. Further history revealed that the patient is on flecainide to prevent paroxysmal atrial fibrillation (to keep him in sinus rhythm). Vital signs were normal. was elevated.

Chest Pain 94

Chest Pain Pacemaker Atrial Fibrillation Blog 94

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. In this case, it is atrial fibrillation. As per Dr. Frick — pacemaker spikes are best seen in lead aVL of ECG #1. ECG is shown below.

Pacemaker 108

Pacemaker Blog Atrial Fibrillation Electrophysiology 108

Frontiers in Cardiovascular Medicine

APRIL 3, 2025

Primary endpoint was the incidence of patients with new onset supraventricular arrhythmia (AF, atrial flutter or any supraventricular tachycardia) lasting >30s, post PFO closure.ResultsA total of 59 patients met the inclusion criteria.

Arrhythmia 40

Arrhythmia Atrial Flutter Atrial Fibrillation Defibrillator 40

Dr. Smith's ECG Blog

JANUARY 5, 2020

Here is the computer interpretation: ATRIAL FIBRILLATION WITH RAPID VENTRICULAR RESPONSE WITH ABERRANT CONDUCTION OR VENTRICULAR PREMATURE COMPLEXES LEFT AXIS DEVIATION [QRS AXIS beyone -30] NONSPECIFIC ST and T-WAVE ABNORMALITY The over-reading physician confirmed this diagnosis, which is incorrect. It is not atrial fibrillation.

Atrial Fibrillation 52

Atrial Fibrillation Tachycardia Arrhythmia Pulmonary 52

HeartRhythm

APRIL 30, 2024

Subclinical atrial fibrillation (SCAF) is commonly detected in older individuals with an implanted pacemaker or defibrillator. The evolution of implantable and wearable cardiac monitors has increased interest in screening for SCAF in a broader population of individuals at increased risk of stroke.

Atrial Fibrillation 40

Atrial Fibrillation Defibrillator Strokes Stroke 40

Journal of Cardiovascular Electrophysiology

DECEMBER 7, 2023

Abstract Introduction Catheter ablation of atrial fibrillation (AF) has emerged as the most effective therapy. However, rare anatomical abnormalities such as situs inversus totalis, dextrocardia, or interrupted inferior vena cava can make ablation challenging.

Atrial Fibrillation 40

Atrial Fibrillation Ablation Pacemaker Technology 40

Dr. Smith's ECG Blog

MARCH 15, 2023

Her Apple Watch suddenly told her that she is in atrial fibrillation. Patients with healthy AV nodes who are not on AV nodal blockers and who are not hyperkalemic should have a rapid ventricular response if they have paroxysmal Atrial fibrillation. Exam was completely normal except for an irregular heart rate.

Atrial Fibrillation 52

Atrial Fibrillation AFIB Arrhythmia Exercise 52

Journal of the American Heart Association

FEBRUARY 13, 2024

BackgroundScreening for atrial fibrillation (AF) may reveal incidental arrhythmias of relevance. Subsequently, 8 patients underwent pacemaker implantation, 1 for sinus node dysfunction (post‐AF conversion pause of 9 seconds) and 7 for advanced AVB. Journal of the American Heart Association, Ahead of Print.

Atrial Fibrillation 40

Atrial Fibrillation Arrhythmia Hospital Tachycardia 40

HeartRhythm

APRIL 22, 2024

Single- or dual-chamber devices may be implanted in patients requiring a permanent pacemaker (PPM) with a preserved left ventricular ejection fraction and without permanent atrial fibrillation (AF).

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Pacemaker Atrial Fibrillation 45

All About Cardiovascular System and Disorders

APRIL 25, 2024

Sinus node is the natural pacemaker of the heart which gives out regular electrical pulses to produce each heartbeat. Occasionally there could be an irregular rhythm originating from the upper chambers of the heart known as atrial fibrillation. When it is diseased, this function is defective and called sick sinus syndrome.

Atrial Fibrillation 52

Atrial Fibrillation Blood Clot Pacemaker Exercise 52

Circulation

NOVEMBER 23, 2023

BACKGROUND:Frequent premature atrial complexes (PACs) are associated with future incident atrial fibrillation (AF), but whether PACs contribute to development of AF through adverse atrial remodeling has not been studied. Circulation, Ahead of Print.

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Atrial Fibrillation Electrophysiology Pacemaker Circulation 40

HeartRhythm

JUNE 26, 2024

Over the last decade since the first ventricular leadless pacemaker (LP) was implanted in humans, the technology continues to advance. The burgeoning demand for leadless pacing continues to be driven by the interest of clinicians and patients for an alternative option that avoids complications from transvenous leads.

Atrial Fibrillation 40

Atrial Fibrillation Technology Pacemaker 40

Frontiers in Cardiovascular Medicine

OCTOBER 24, 2024

There were no statistically significant differences in terms of stroke, paravalvular leak, mechanical ventilation time, blood transfusion requirements, pacemaker implantation, reexploration for bleeding, conversion, wound infection, or in-hospital stay. 001) and postoperative atrial fibrillation occurred less frequently (p = .044)

Aortic valve 52

Aortic valve Aortic Atrial Fibrillation Pacemaker 52

HeartRhythm

APRIL 30, 2024

The pulmonary vein (PV) sleeves are a major source of ectopic activity driving atrial fibrillation (AF) and episodes of AF in patients are more prevalent at night.

Pulmonary 40

Pulmonary Atrial Fibrillation Pacemaker 40

The British Journal of Cardiology

DECEMBER 3, 2024

Atrioventricular nodal (AVN) ablation with permanent pacemaker implantation – ‘pace and ablate’ – may be considered for patients with symptomatic atrial fibrillation (AF) for whom rhythm control has been unsuccessful. This creates concerns about inducing pacemaker dependence and potential pacemaker-induced cardiomyopathy (PICM).

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Ablation Pacemaker Atrial Fibrillation Physiology 40

Journal of Cardiovascular Electrophysiology

NOVEMBER 26, 2024

AF, atrial fibrillation; ICD, implantable cardioverter defibrillator; ILR, implantable loop recorder. vs. 15.8%; p =0.001), pacemaker implantation (11.2% ABSTRACT Introduction Little is known about age and clinical intervention after implantable loop recorder (ILR) insertion. The mean age was 64.3 vs. 18.6%; p <0.001).

Atrial Fibrillation 40

Atrial Fibrillation Defibrillator Pacemaker Ablation 40

European Journal of Heart Failure

DECEMBER 20, 2023

This study aimed to evaluate the impact of higher backup pacing rates in HFpEF patients with preexisting pacemaker systems that limit pacemaker-mediated dyssynchrony across left ventricular (LV) volumes and ejection fraction (LVEF). No evidence of heterogeneity was found across LV volumes or LVEF for pacemaker-detected AF burden.

Quality of Life 40

Quality of Life Preserved Ejection Fraction Pacemaker Heart Failure 40

Cardiomatics

APRIL 5, 2024

Interpreting the waves and detecting abnormalities: Typically, the heart conducts electricity in a pathway starting in the sinoatrial node (SA), our heart’s “natural pacemaker”, located in the wall of the right atrium. AFIB/AFL – atrial fibrillation or atrial flutter episodes.

Arrhythmia 92

Arrhythmia Tachycardia Bradycardia Electrocardiogram 92

Circulation

NOVEMBER 11, 2024

We describe a case of ventricular pacemaker spikes delivered on the T wave causing PMVT.Case:A 53-year-old female with CAD s/p stent, postpartum cardiomyopathy s/p Bi-V CRT-D (Boston Scientific G124), and paroxysmal atrial fibrillation presented for elective endoscopy and colonoscopy to evaluate her dysphagia and abdominal pain.

Tachycardia 40

Tachycardia Pacemaker Defibrillator Atrial Fibrillation 40

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

Dr. Smith's ECG Blog

MARCH 19, 2024

The patient presented to an outside hospital An 80yo female per triage “patient presents with chest pain, also hurts to breathe” PMH: CAD, s/p stent placement, CHF, atrial fibrillation, pacemaker (placed 1 month earlier), LBBB. HPI: Abrupt onset of substernal chest pain associated with nausea/vomiting 30 min PTA.

Chest Pain 110

Chest Pain Myocardial Infarction Stents Stent 110

Dr. Smith's ECG Blog

JANUARY 22, 2020

She previously had Atrial fibrillation with LBBB. This shows atrial fibrillation. The fact that the response is regular proves that the atrial fibrillation is NOT conducting. When atrial fib conducts, the ventricular rate must always be irregular. She had a permanent pacemaker implanted.

Pulmonary 52

Pulmonary AFIB Atrial Fibrillation Pacemaker 52

Journal of Cardiovascular Electrophysiology

JANUARY 19, 2024

Abstract Background Cardioneuroablation (CNA) is a novel therapeutic approach for functional bradyarrhythmias, specifically neurocardiogenic syncope or atrial fibrillation, achieved through endocardial radiofrequency catheter ablation of vagal innervation, obviating the need for pacemaker implantation.

Outcomes 40

Outcomes Atrial Fibrillation Pharmacology Pacemaker 40

Dr. Smith's ECG Blog

JANUARY 9, 2024

She also has a hx of paroxysmal atrial fibrillation and is on oral anticoagulant treatment. She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. The patient is female in her 80s with a medical hx of previous MI with PCI and stent placement. small squares in width (260ms).

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Tachycardia Electrophysiology Atrial Flutter Ischemia 118

Dr. Smith's ECG Blog

JUNE 21, 2024

Pacemaker mediated tachycardia (also called endless loop tachycardia). Some say you should not use it is AVRT because the patient might convert to atrial fibrillation. And yet they have the same probability of converting to atrial fibrillation. This is not such a case, as there are no pacer spikes. What to do?

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Tachycardia Atrial Fibrillation Pacemaker Blog 70

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