Catheter ablation is currently an established treatment for symptomatic paroxysmal atrial fibrillation (AF). We focused on elderly patients with a high prevalence of AF and attempted to identify the clinical factors associated with unsuccessful ablation outcomes.Among 735 consecutive patients who underwent AF ablation procedures, 108 (14.7%, 66 men) aged ≥ 75 years were included. Of them, 80 had paroxysmal AF, and the remaining 28 non-paroxysmal AF. All patients underwent pulmonary vein (PV) isolation and occasionally additional ablation. When AF recurred, redo ablation procedures were performed if the patient so desired.The mean number of ablation procedures was 1.1 ± 0.4 times per patient. During a mean follow-up of 38.7 ± 21.7 months, sinus rhythm was maintained in 100 patients (92.6%) without any antiarrhythmic drugs, but not in the remaining 8 (7.4%). Left atrial diameter (LAD, P < 0.001), left ventricular (LV) systolic diameter (P < 0.001), LV diastolic diameter (P = 0.001), non-PV AF foci (P = 0.036), and diabetes (P = 0.045) were associated with unsuccessful ablation procedures. Multivariate logistic regression analysis revealed a large LAD and non-PV AF foci were significant independent predictors of AF recurrences, with odds ratios of 0.76 (P = 0.019) and 0.04 (P = 0.023), respectively. In a total of 124 procedures, one major (0.8%) and 11 minor (8.9%) complications occurred.In elderly AF patients, catheter ablation of AF is effective and safe. Non-PV AF foci and a large LAD were independent clinical predictors of unsuccessful AF ablation outcomes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1536/ihj.19-226 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Introduction: Differentiated thyroid cancer (DTC) is the most common type of endocrine malignancy, with rising incidence over recent decades. Despite a favorable prognosis, DTC management remains complex, often involving thyroidectomy followed by radioactive iodine (RAI) therapy. While RAI is crucial for patient outcomes, its efficacy varies, necessitating the identification of predictors for treatment response.
View Article and Find Full Text PDFClinical Profile and Management of Wolf-Parkinson White Syndrome and Asymptomatic Pre-Excitation Carriers in Africa: A Multicenter Pan African Registry From 17 Countries.
J Cardiovasc Electrophysiol
January 2025
Douala Gyneco-obstetric and Pediatric Hospital/University of Douala, Douala, Cameroon.
Article Synopsis
- The study explores the management and diagnosis of Wolf-Parkinson White Syndrome (WPW) and asymptomatic pre-excitation in Africa, highlighting a lack of data in the region.
- Conducted in 20 centers across 17 African countries, the research involved 541 participants and focused on symptomatology, treatment approaches, and the impact of local health dynamics on care.
- Results indicated that a vast majority were diagnosed with WPW, with significant regional differences in treatment options and effectiveness, showing that Northern and Southern Africa have more advanced practices compared to other areas.
Visualizing and quantifying biomineral preservation in fossil vertebrate dental remains.
PeerJ
January 2025
Department of Organismal Biology, Uppsala University, Uppsala, Sweden.
In this study, we attempt to illustrate fossil vertebrate dental tissue geochemistry and, by inference, its extent of diagenetic alteration, using quantitative, semi-quantitative and optical tools to evaluate bioapatite preservation. We present visual comparisons of elemental compositions in fish and plesiosaur dental remains ranging in age from Silurian to Cretaceous, based on a combination of micro-scale optical cathodoluminescence (CL) observations (optical images and scanning electron microscope) with minor, trace and rare earth element (REE) compositions (EDS, maps and REE profiles), as a tool for assessing diagenetic processes and biomineral preservation during fossilization of vertebrate dental apatite. Tissue-selective REE values have been obtained using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), indicating areas of potential REE enrichment, combined with cathodoluminescence (CL) analysis.
View Article and Find Full Text PDFPINK1 modulates Prdx2 to reduce lipotoxicity-induced apoptosis and attenuate cardiac dysfunction in heart failure mice with a preserved ejection fraction.
Clin Transl Med
January 2025
Key Laboratory For Organ Failure Research, Ministry of Education of the People's Republic of China, Guangzhou, China.
Introduction: Heart failure with preserved ejection fraction (HFpEF) is a complex condition characterized by metabolic dysfunction and myocardial lipotoxicity. The roles of PTEN-induced kinase 1 (PINK1) and peroxiredoxin-2 (Prdx2) in HFpEF pathogenesis remain unclear.
Objective: This study aimed to investigate the interaction between PINK1 and Prdx2 to mitigate cardiac diastolic dysfunction in HFpEF.
Efficacy of Radiofrequency Ablation as a Treatment for High-Risk Gastric Intestinal Metaplasia: A Randomized, Self-Control Study.
J Gastroenterol Hepatol
January 2025
Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross, Bangkok, Thailand.
Article Synopsis
- Guidelines suggest that patients with high-risk gastric intestinal metaplasia should have endoscopic surveillance for gastric cancer every three years.
- This study explored the effectiveness of radiofrequency ablation (RFA) in completely eliminating high-risk gastric intestinal metaplasia.
- Results showed that RFA led to a significantly higher complete resolution rate of GIM lesions compared to a group receiving only observation, particularly in those with incomplete GIM.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!