Feifan Ouyang
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View article: Periprocedural Safety of Interventional Electrophysiological Procedures in Octogenarians and Nonagenarians
Periprocedural Safety of Interventional Electrophysiological Procedures in Octogenarians and Nonagenarians Open
Background Catheter ablation is an established treatment for cardiac arrhythmia. There is a lack of data on invasive electrophysiological (EP) procedures in aged patients. Methods Consecutive patients ≥ 80 years who underwent catheter abla…
View article: One-year outcomes after atrial fibrillation ablation with the novel lattice-tip catheter
One-year outcomes after atrial fibrillation ablation with the novel lattice-tip catheter Open
Background A novel lattice-tip combined mapping and ablation catheter, capable of pulsed-field (PFA) and conventional radiofrequency (RF) ablation and fully integrated into a novel mapping and ablation platform, has been introduced. Inform…
View article: Three-year follow up after pulsed-field and cryoballoon based pulmonary vein isolation supports a possible effect of autonomic modulation on atrial fibrillation recurrence
Three-year follow up after pulsed-field and cryoballoon based pulmonary vein isolation supports a possible effect of autonomic modulation on atrial fibrillation recurrence Open
Background Changes in cardiac autonomic innervation can contribute to recurrent atrial fibrillation (AF) after ablation. Previous data showed that pulsed-field ablation (PFA) inflicts less neurocardiac damage than cryoballoon ablation (CBA…
View article: General anaesthesia and deep sedation for monopolar pulsed field ablation using a lattice-tip catheter combined with a novel three-dimensional mapping system
General anaesthesia and deep sedation for monopolar pulsed field ablation using a lattice-tip catheter combined with a novel three-dimensional mapping system Open
Aims A novel three-dimensional mapping platform combined with a lattice-tip catheter that can toggle between monopolar pulsed field ablation (PFA) and radiofrequency energy delivery was recently launched. So far, the system was predominant…
View article: Significant reduction of complications applying an optimized vascular access and post-interventional groin-site management during electrophysiology procedures
Significant reduction of complications applying an optimized vascular access and post-interventional groin-site management during electrophysiology procedures Open
Background Catheter ablation of cardiac arrhythmias is an established treatment strategy. However, the optimal femoral vascular access strategy and post-interventional management in the electrophysiology (EP) setting is still under debate.…
View article: Atrial tachyarrhythmia prevention by Shensong Yangxin after catheter ablation for persistent atrial fibrillation: the SS-AFRF trial
Atrial tachyarrhythmia prevention by Shensong Yangxin after catheter ablation for persistent atrial fibrillation: the SS-AFRF trial Open
Background and Aims Despite advances in technology and techniques, the recurrence rate of persistent atrial fibrillation (AF) following catheter ablation remains high. The Shensong Yangxin (SSYX) capsule, a renowned traditional Chinese med…
View article: Pulsed-field- vs. cryoballoon-based pulmonary vein isolation: lessons from repeat procedures
Pulsed-field- vs. cryoballoon-based pulmonary vein isolation: lessons from repeat procedures Open
Aims Pulsed-field ablation (PFA) is an emerging technology to perform pulmonary vein isolation (PVI). Initial data demonstrated high safety and efficacy. Data on long-term PVI durability and reconduction patterns in comparison to establish…
View article: Contrast-associated acute kidney injury in second-generation cryoballoon-based pulmonary vein isolation
Contrast-associated acute kidney injury in second-generation cryoballoon-based pulmonary vein isolation Open
Background - An effective treatment of symptomatic Atrial fibrillation (AF) is the second-generation cryoballoon (CB2) based pulmonary vein isolation (PVI). However, this technique is associated with an increased exposure to contrast media…
View article: Percutaneous left atrial appendage closure using a novel occlusion device for thromboembolic prevention: 3-year procedural experience
Percutaneous left atrial appendage closure using a novel occlusion device for thromboembolic prevention: 3-year procedural experience Open
Background Stroke due to atrial fibrillation has been associated with a high risk of disability and mortality. Percutaneous left atrial appendage (LAA) closure has been established as a treatment strategy for stroke prevention in patients …
View article: Newly diagnosed heart failure in patients with atrial fibrillation referred for catheter ablation - identifying patients with arrhythmia-induced cardiomyopathy
Newly diagnosed heart failure in patients with atrial fibrillation referred for catheter ablation - identifying patients with arrhythmia-induced cardiomyopathy Open
Introduction Atrial tachyarrhythmias are primary drivers in the development of arrhythmia-induced cardiomyopathy (AiCM). The restoration of sinus rhythm in patients with an AF (atrial fibrillation) based AiCM results in enhancement of left…
View article: Long-term outcome after catheter ablation for fascicular ventricular tachycardia in a single high-volume center in Germany
Long-term outcome after catheter ablation for fascicular ventricular tachycardia in a single high-volume center in Germany Open
Background Idiopathic Fascicular Ventricular Tachycardia (IFVT) accounts for less than 10% of all VTs and represents the most common idiopathic ventricular tachycardia of the left ventricle. This study reports on clinical and procedural ch…
View article: Nonthermal Point-by-Point Pulmonary Vein Isolation Using a Novel Pulsed Field Ablation System
Nonthermal Point-by-Point Pulmonary Vein Isolation Using a Novel Pulsed Field Ablation System Open
ulsed field ablation (PFA) is rapidly gaining importance in the field of pulmonary vein isolation (PVI). 1 Initial data using PFA-capable multispline catheters suggests that PFA is effective and safe for PVI. 2,3However, multispline cathet…
View article: Screening of lipids for long-term brain irradiation effect based on non-targeted lipidomics
Screening of lipids for long-term brain irradiation effect based on non-targeted lipidomics Open
Irradiation and weightlessness are the main causes of neurological damage in astronauts on long-duration manned flights. Ionizing radiation induces the proliferation of microglia and astrocytes and the production of pro-inflammatory and ch…
View article: Atrioventricular Nodal Reentrant Tachycardia with Upper Common Pathway Block
Atrioventricular Nodal Reentrant Tachycardia with Upper Common Pathway Block Open
We present the case of a 34-year-old man with paroxysmal narrow complex tachycardias. An EP study revealed AVNRT with upper common pathway block. Our case shows a diagnostic approach and treatment for this rare scenario in the EP lab.
View article: The infrastructure of electrophysiology centers impacts the management of cardiac tamponade—Results from a national survey
The infrastructure of electrophysiology centers impacts the management of cardiac tamponade—Results from a national survey Open
Background Although electrophysiological (EP) centers have institutional standards, evidence on management of cardiac tamponade is lacking. Aim and Methods A physician‐based survey was conducted by sending out questionnaires to all hospita…
View article: Novel Radiofrequency Balloon Catheter ― Impact of Ablation Parameters on Single-Shot Isolation ―
Novel Radiofrequency Balloon Catheter ― Impact of Ablation Parameters on Single-Shot Isolation ― Open
In this multicenter real-world study, mean impedance drop and temperature rise were associated with successful SS-PVI applying the novel RFB catheter. These parameters may help to guide efficient usage of the new RF balloon.
View article: High comorbidity burden is not associated with increased risk of periprocedural pericardial effusionduring left atrial ablation procedures: data from a large tertiary-care ablation center
High comorbidity burden is not associated with increased risk of periprocedural pericardial effusionduring left atrial ablation procedures: data from a large tertiary-care ablation center Open
Funding Acknowledgements Type of funding sources: None. Background Catheter ablation is the most effective rhythm control treatment for atrial fibrillation (AF) and benefits of early rhythm control (ERC) were recently demonstrated to be en…
View article: Increasing comorbidity burden of patients undergoing catheter ablation for atrial fibrillation in the past 10 years: An analysis of more than 8000 left-atrial ablation procedures
Increasing comorbidity burden of patients undergoing catheter ablation for atrial fibrillation in the past 10 years: An analysis of more than 8000 left-atrial ablation procedures Open
Funding Acknowledgements Type of funding sources: None. Background Catheter ablation is the most effective rhythm control treatment for atrial fibrillation (AF). While it was indicated as a symptomatic treatment in the past years, prognost…
View article: Pulsed-field ablation based pulmonary vein isolation: reconnection pattern and comparison to cryoballoon ablation
Pulsed-field ablation based pulmonary vein isolation: reconnection pattern and comparison to cryoballoon ablation Open
Funding Acknowledgements Type of funding sources: None. Background Pulsed-field ablation (PFA) integrated into a pentaspline catheter is a novel single shot device to perform pulmonary vein isolation (PVI) for treatment of atrial fibrillat…
View article: A novel saline-based occlusion tool allows for dye-less cryoballoon-based pulmonary vein isolation and fluoroscopy reduction
A novel saline-based occlusion tool allows for dye-less cryoballoon-based pulmonary vein isolation and fluoroscopy reduction Open
Funding Acknowledgements Type of funding sources: None. Background Cryoballoon (CB)- based pulmonary vein isolation (PVI) remains guided by fluoroscopy and dye. The novel saline injection-based occlusion tool allows for pulmonary vein (PV)…
View article: Efficacy and safety in patients treated with a novel radiofrequency balloon: a two centres experience from the AURORA collaboration
Efficacy and safety in patients treated with a novel radiofrequency balloon: a two centres experience from the AURORA collaboration Open
Aims A novel irrigated radiofrequency (RF) balloon (RFB) for pulmonary vein (PV) isolation (PVI) was released in selected centres. We pooled the procedural data on efficacy and safety of RFB-PVI from two high volume German centres. Methods…
View article: A novel saline-based occlusion tool allows for dye-less cryoballoon-based pulmonary vein isolation and fluoroscopy reduction
A novel saline-based occlusion tool allows for dye-less cryoballoon-based pulmonary vein isolation and fluoroscopy reduction Open
Background Cryoballoon (CB)- based pulmonary vein isolation (PVI) remains guided by fluoroscopy and dye. The novel saline injection-based occlusion tool allows for pulmonary vein (PV)-occlusion assessment without the need for dye injection…
View article: Phrenic nerve visualization: a profitable new application for intracardiac echocardiography?
Phrenic nerve visualization: a profitable new application for intracardiac echocardiography? Open
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View article: Mechanisms of late arrhythmia recurrence after initially successful pulmonary vein isolation in patients with atrial fibrillation
Mechanisms of late arrhythmia recurrence after initially successful pulmonary vein isolation in patients with atrial fibrillation Open
Background Catheter ablation is an effective treatment for atrial fibrillation (AF,) but arrhythmia recurrence occurs in a relevant number of patients. Mechanisms of late occurring arrhythmias after ablation procedures are not fully unders…
View article: Temperature-controlled ablation of the mitral isthmus line using the novel DiamondTemp ablation system
Temperature-controlled ablation of the mitral isthmus line using the novel DiamondTemp ablation system Open
Background The novel DiamondTemp™ (DT)-catheter (Medtronic ® ) was designed for high-power, short-duration ablation in a temperature-controlled mode. Aim To evaluate the performance of the DT-catheter for ablation of the mitral isthmus lin…
View article: Evolving Role of Catheter Ablation for Atrial Fibrillation: Early and Effective Rhythm Control
Evolving Role of Catheter Ablation for Atrial Fibrillation: Early and Effective Rhythm Control Open
Catheter Ablation (CA) is an effective therapeutic option in treating atrial fibrillation (AF). Importantly, recent data show that CA as a rhythm control strategy not only significantly reduces AF burden, but also substantially improves cl…