Circulation

NOVEMBER 11, 2024

Recurrence rates after catheter ablation in these patients are high. Demographic, clinical, and outcome variables over 5 years were compared between patients with and without SVT recurrence.Results:Mean age of 25 patients (56% male) at time of SVT ablation was 31.5 ± 7.2 Ablation success rate was 92%.

Ablation 40

Ablation Atrial Flutter Outcomes Arrhythmia 40

The American Journal of Cardiology

APRIL 5, 2025

Publication date: Available online 4 April 2025 Source: The American Journal of Cardiology Author(s): Wen Yang, Zhixin Jiang, Shengchan Wang, Chun Chen, Xiujuan Zhou, Qijun Shan

Physiology 40

Physiology Cardiomyopathy Ablation Outcomes 40

Dr. S. Venkatesan MD

JUNE 16, 2024

While , treating VTs with drugs is still a choice, permanent solutions by defining the VT circuit and ablating them, is the new norm. The following image and video clip is one such demonstration of ablating hidden diastolic paths between the entry and exit points. How can we remember this EP lesson easily ?

Ablation 52

Ablation Physiology Technology Bicuspid/Mitral 52

HeartRhythm

APRIL 30, 2024

His bundle pacing (HBP) is the most physiologic pacing. In pts undergoing AV node ablation (AVNA), LBBP results in RVCD that is not correctable by fusion with native RBB conduction as achievable in pts with LBBB. However HBP threshold can be high especially in LBBB.

Physiology 40

Physiology Ablation 40

HeartRhythm

AUGUST 6, 2024

In the article, “Pulsed field ablation prevents left atrial restrictive physiology after posterior wall isolation in patients with persistent atrial fibrillation” by Ariel Banai and colleagues, published in the August 2024 issue of Heart Rhythm (21;8:1245-1247), the author Disclaimer information was incomplete.

Atrial Fibrillation 40

Atrial Fibrillation Article Heart Rhythm Physiology 40

Journal of Cardiovascular Electrophysiology

JANUARY 4, 2024

Results Ablation of the rightward inferior extension was unsuccessful in eliminating DAVNNT; however, subsequent ablation of the LIE successfully eradicated the arrhythmia. Methods Diagnosis was made using adenosine triphosphate (ATP) injection during atrial pacing in a suspected DAVNNT patient.

Tachycardia 40

Tachycardia Physiology Ablation Arrhythmia 40

HeartRhythm

JUNE 12, 2024

A 50-year-old woman was referred to our hospital for catheter ablation of a regular narrow QRS tachycardia with a short RP interval. No retrograde dual atrioventricular (AV) nodal physiology was observed. In an electrophysiological study, the baseline atrio-His (AH) and His-ventricular intervals were normal.

Tachycardia 40

Tachycardia Electrophysiology Physiology Ablation 40

HeartRhythm

MAY 17, 2024

The autonomic nervous system (ANS) is critical to atrial fibrillation (AF) pathophysiology, but it is often difficult to differentiate vagal and adrenergic AF due to complex physiological interactions.1 2 We previously reported that ERPs were associated with increased susceptibility to AF.3

Atrial Fibrillation 40

Atrial Fibrillation Electrocardiogram Physiology Ablation 40

Stroke Journal

JANUARY 30, 2025

This study aimed to investigate hemodynamic factors in DS generation and rupture using anatomic and ablated IA models under various DS scenarios.Methods:113 computational models of 43 patients with at least one IA containing a DS were built based on 3D rotational angiographical images using benchmarked model reconstruction procedures.

Aneurysm 40

Aneurysm Ablation Physiology Research 40

Dr. Smith's ECG Blog

DECEMBER 24, 2023

Is this patient a candidate for cardioversion or ablation? ( If ablation is contemplated — definitive diagnosis will be made at EP study. ( It simply does not make physiologic sense to suddenly see an all-negative QRS complex in this most lateral chest lead. What is the goal for treatment of this patient's AFlutter?

Atrial Flutter 127

Atrial Flutter Blog Aortic Aortic valve 127

Dr. Smith's ECG Blog

JANUARY 9, 2024

AV synchrony and physiologic ventricular depolarization the hemodynamics improved. Lowering the back up rate (LRL) of the ICD/pacer allowed for an intrinsic rhythm with physiologic AV conduction and normal AV synchrony with resultant increase in stroke volume and cardiac outpt.

Tachycardia 119

Tachycardia Electrophysiology Atrial Flutter Ischemia 119

Dr. Smith's ECG Blog

OCTOBER 13, 2022

In other cases, the bypass tracts conduct intermittently, depending upon other factors such as cardioactive medication use, physiological stressors with catecholamine release, the development of coronary ischemia, and normal aging.”[3]

Chest Pain 52

Chest Pain Myocardial Infarction Ischemia STEMI 52

Cardiometabolic Health Congress

DECEMBER 7, 2023

Furthermore, it includes the latest recommendations which specifically address AF and thromboembolic risk assessment, anticoagulation, left atrial appendage occlusion, AF catheter or surgical ablation, and risk factor modification and AF prevention. As such, the Class of Recommendation for catheter ablation has been upgraded.

Atrial Fibrillation 111

Atrial Fibrillation Risk Factors Ablation Stroke 111

Dr. S. Venkatesan MD

JANUARY 28, 2025

Can you ever think of ablating PVs in a patient with AF and COPD, where the right atrium is under stress and strain? (See below) It can be in the free walls of the left atrium, LA appendage, IAS, IV, SVC junctions, coronary sinus, ligament of Marshall, crista terminalis, etc.

Atrial Fibrillation 52

Atrial Fibrillation Pulmonary Tachycardia Electrophysiology 52

Dr. Smith's ECG Blog

NOVEMBER 3, 2024

When these measures did not work — the patient underwent PVC ablation, which did achieve a good clinical result. Learning points : Dual AV physiology in the retrograde direction does not necessarily mean there is dual AV conduction in the antegrade direction. Dual AV physiology is necessary for AVNRT and reciprocal or "echo" beats.

Electrophysiology 65

Electrophysiology Pacemaker Physiology Tachycardia 65