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Electrophysiology & Arrhythmia

 - Running

Patients with implantable cardioverter-defibrillators (ICDs) or cardiac resynchronization therapy (CRT) devices who were most active had improved health outcomes and were more likely to survive, according to a registry analysis.

 - MRI

BOSTON—Patients with the Iforia ProMRI implantable cardiac device (ICD) system had no adverse outcomes related to the device and no significant changes to pacing or sensing parameters after undergoing a thoracic spine or cardiac MRI, according to a multicenter, nonrandomized trial.

 - patient

BOSTON—Patients with heart failure who failed standard, optimal cardiac resynchronization therapy (CRT) approaches had significant improvements in clinical outcomes after receiving a novel device that provided endocardial left ventricular stimulation.

 - Canada flag, Canadian

BOSTON—After a mean follow-up of 7.5 years, electrical failure occurred in 5.9 percent of patients using the Riata lead, according to a prospective, observational study of the Riata leads under advisory in Canada. In addition, 7.4 percent of patients had electrical failure or cable externalization.

 - Surgery

BOSTON—Preliminary results of a randomized trial found the HeartLight visually-guided laser balloon (VGLB) system was as safe and effective as irrigated radiofrequency ablation in patients with paroxysmal atrial fibrillation.


More Stories

HRS.15: Remote monitoring leads to cost savings, fewer hospitalizations

BOSTON—Patients who had remote monitoring in their implantable electronic cardiac devices had lower all-cause hospitalization costs and recurrent hospitalizations compared with patients without remote monitoring capabilities, according to a large, retrospective, cohort study.

FDA approves shorter, third-gen cryoballoon

The FDA approved Medtronic’s latest generation cryoablation catheter for treating patients with paroxysmal atrial fibrillation. The Arctic Front Advance ST also received CE mark in Europe for a broader indication.

FDA clears Greatbatch’s sutureless pacing lead

The FDA gave Greatbatch Medical the green light to market a sutureless myocardial pacing lead for ventricular pacing and sensing.

Pulmonary-vein isolation alone suffices for persistent AF

More is not better when it comes to catheter ablation to treat persistent atrial fibrillation. A randomized controlled clinical trial found additional ablation did not improve outcomes, a result that may prompt a revision in guidelines.

Off-label use of Lariat device associated with death, urgent cardiac surgery

A systematic review of databases found that off-label use of the Lariat snare device for left atrial appendage exclusion was associated with adverse events, including death and urgent cardiac surgery.

S-ICDs prove safe and effective at 2 years

After two years, fewer than 7 percent of patients who were implanted with a subcutaneous implantable cardioverter-defibrillator (S-ICD) had spontaneous ventricular tachyarrhythmia or ventricular fibrillation events, according to a pooled analysis of two trials.

25% of low-risk patients receive oral anticoagulants unnecessarily

One quarter of patients with atrial fibrillation who were at a low risk for stroke were prescribed oral anticoagulants, contrary to guidelines. The results appeared online April 13 in JAMA Internal Medicine.

Sports-associated sudden cardiac arrest rare in middle-age people

Sports-associated sudden cardiac arrests (SCAs) were rare among a group of middle-age people in the northwestern U.S., according to a prospective, population-based study. Of the SCAs that occurred between February 2002 and January 2013, 5 percent were sports-associated.

Heart monitoring service settles overbilling case for $6.4M

A company that provides outpatient cardiac monitoring agreed to pay $6.4 million to settle a case of what one federal official called “abusive billing practices.”

Hep C therapy may interact with amiodarone

The FDA is warning cardiologists that patients can develop life-threatening symptomatic bradycardia when the hepatitis C drugs ledipasvir/sofosbuvir or sofosbuvir combined with another direct-acting antiviral are taken together with amiodarone.

Janssen ventures into antithrombin antibody-based drugs

Janssen Pharmaceuticals acquired a university spinout company that develops an antithrombin antibody, adding another potential therapy to its portfolio.

FDA OKs pacemaker that allows for MRI scans

The FDA approved a pacemaker system that allows patients with single-chamber pacemakers to undergo full-body cardiac or thoracic MRI scans.

FDA approves 2nd generation subcutaneous ICD

The FDA approved Boston Scientific’s Emblem subcutaneous implantable defibrillator (S-ICD) system, which is expected to be available in the U.S. by the third quarter of this year.

ACC.15: Weight loss improves afib symptoms but fluctuation worsens them

Analyzing the link between obesity and arrhythmia, LEGACY confirmed that among obese patients, weight loss greatly influenced freedom from atrial fibrillation, particularly among those who lost weight and maintained it. However, more than 5 percent fluctuation in weight over one year increased patient risks.

ACC.15: Ablation with mitral valve surgery proves safe, effective

Performing an ablation along with mitral valve surgery is more likely to keep cardiac patients free of persistent atrial fibrillation (AF) at one year, according to results unveiled March 16 at the American College of Cardiology scientific session. But it also increased the risk of needing a pacemaker.

St. Jude sets aside $15M to settle Riata cases

St. Jude Medical put aside $15 million to privately settle about 950 claims and other disputes over its Riata and Riata ST leads, the company reported in a filing with the Securities and Exchange Commission.

Stepwise ablation controls some persistent afib up to 5 years

Long-term results from a French study on persistent atrial fibrillation suggest that a stepwise catheter ablation strategy may terminate atrial fibrillation in some patients for as long as five years after a procedure.

High-resolution CT focuses VT treatment on tiny targets

High-resolution imaging may get physicians closer to the areas that most need epicardial ablation when addressing ventricular tachycardia (VT). Real-time multidetector CT to assist with epicardial ablation proved useful for determining optimal ablation while avoiding coronary arteries and phrenic nerves.

Pacemaker battery life stretched with remote monitoring, optimized pacing

It sounds contradictory, but more pacemaker monitoring could lead to longer battery life. An Italian retrospective analysis compared battery life between pacemakers with remote monitoring on vs. off and found that with remote monitoring on, patients went approximately 11 months longer between battery replacements. 

FDA gives thumbs up to flex-tipped ablation catheter

The FDA approved St. Jude Medical’s FlexAbility Ablation Catheter for use in the U.S. This follows on the heels of last year’s CE mark approval of the device.