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Electrophysiology & Arrhythmia


Roughly 1 in 4 children with Brugada syndrome treated with implantable cardioverter-defibrillators (ICDs) received life-saving shock therapy in a single-center study of 35 patients published in the Journal of the American College of Cardiology. However, 20 percent experienced inappropriate shocks and another 14 percent had device-related complications, highlighting the challenging clinical decision-making in this high-risk group.

Analyzing the change in stroke risk factors for atrial fibrillation (AFib) patients was far more powerful in predicting stroke than assessing baseline risk factors alone, researchers reported in the Journal of the American College of Cardiology.

Longtime claims that heart patients fitted with implantable cardiac devices should forgo MRI testing for safety concerns could be incorrect and “outdated,” according to new research published in the New England Journal of Medicine.

When writing about a recent JAMA Cardiology study, I was struck by an image of former Loyola Marymount University basketball star Hank Gathers swinging from the rim after a powerful dunk—and then collapsing to the court seconds later. Gathers died at 23.

New technology developed at New York’s Binghamton University could change the way clinicians detect heart disease with MRI scans, research published in the journal Colloid and Surfaces B: Biointerfaces suggests.


Recent Headlines

Multiple pregnancies may increase risk of atrial fibrillation

Women who were healthy at baseline had an increased risk of atrial fibrillation if they had multiple pregnancies, according to an analysis of a large cohort.

FDA approves MR-conditioning labeling for Abbott’s pacemaker

The FDA approved a magnetic resonance (MR)-conditioning labeling for Abbott’s Assurity MRI pacemaker and its Tendreil MRI pacing lead.

FDA grants 510(k) clearance for CardioInsight 3D mapping system

The FDA granted a 510(k) clearance for the CardioInsight noninvasive 3D mapping system, which provides 3D maps of the heart and is used to map irregular heart rhythms.

Medtronic seeks CMS approval for Micra leadless pacemaker

Medtronic plans on seeking coverage from CMS for the company’s Micra Transcatheter Pacing System, the first and only FDA-approved leadless pacemaker.

Mining the Gap: Researchers Dig for Data to Reduce Disparities in Atrial Fibrillation Treatment

Black people with atrial fibrillation (AF) experience vastly higher rates of serious coronary events, so it’s not surprising that a growing number of clinical studies are aggressively tackling the complex issues around the impact of race—as well as gender—on management and outcomes of the heart rhythm disorder.

Registry analysis finds most eligible adults receive a CRT-D device

Nearly 90 percent of adults who were eligible for cardiac resynchronization therapy defibrillators (CRT-D) were implanted with the device, according to a retrospective registry study.

CMS plans on finalizing proposal to cover leadless pacemakers

After CMS received public comments, the agency announced on Jan. 18 that it is finalizing its proposal to cover leadless pacemakers.

80% of older adults survive more than two years after ICD implantation

Nearly 80 percent of older adults who received an implantable cardioverter-defibrillator (ICD) survived at least two years, according to a registry analysis of Medicare beneficiaries.

Alcohol abuse may increase risk for atrial fibrillation, MI, congestive heart failure

After adjusting for multiple variables, adults who abused alcohol had increased risks of atrial fibrillation, MI and congestive heart failure, according to a longitudinal analysis. The relative risk for those outcomes were highest in adults who had no established cardiovascular risk factors.

Level of evidence in atrial fibrillation guidelines remains consistent from 2001 to 2014

Although the number of randomized trials evaluating atrial fibrillation increased by more than 200 percent from 2001 to 2014, there was no significant increase in the use of level A evidence used in guidelines.