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Electrophysiology & Arrhythmia


Asymptomatic atrial fibrillation (AFib) patients could be at a heightened risk for cardiac complications, especially if the condition is paroxysmal, a study published in CHEST reports.

Artificial intelligence (AI)–assisted electrophysiology (EP) shows promise, but even its most ardent advocates aren’t ready for full-fledged endorsement—yet.   

The FDA issued a safety alert Jan. 17 for the Zoll LifeVest 4000, saying the external, wearable cardioverter defibrillator may fail to treat potentially fatal arrhythmias if it displays a specific error message which, by itself, doesn’t signal urgency.

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.


Recent Headlines

HRJ: Multiple tests best diagnose right ventricular disease Five diagnostic tests were determined to provide the most accurate diagnosis of arrhythmogenic right ventricular cardiomyopathy/dysplasia, which led investigators to suggest a need to revise the criteria used to evaluate the presence the disease, according to a study in the July edition of the HeartRhythm Journal.
Commentary: After AEDs saved his life, he crusades for their placement
How do you realize the value of a human life? There are many ways really, but for me the true clarity came from my death. Yes, thats right, I died; five times to be exact. My name is Chris Knight, and because of a miraculous second chance at life, I am taking this opportunity to share with you my story.
St. Jude reports 15% decline in Q2 earnings St. Jude Medical has reported a 15 percent net decline in earnings for the second quarter, which ended July 4, compared with the year-ago quarter.
Merck, Portola to develop new oral anticoagulant in $470M deal Merck and Portola Pharmaceuticals have signed a global collaboration and license agreement for the development and commercialization of betrixaban, an investigational oral Factor Xa inhibitor anticoagulant currently in Phase II clinical development for the prevention of stroke in patients with atrial fibrillation.
Advanced visualization makes the cut
Although much of the focus on advanced visualization in medical imaging has been on its use in diagnostic interpretation, one of the technologys strongest clinical roles may be its utilization by clinicians in planning interventional treatments. In addition to improving the quality of patient care, the applications may also foster even stronger collaboration between radiology services and surgical units.
GFR model aids kidney donor assessment
Although measured glomerular filtration rate (GFR) is the best overall index of renal function, determining this measurement can be both costly and time consuming. A technique employing advanced visualization technology holds promise for both a quicker and lower-cost method of estimating GFR, according to research published this month in Radiology.
Three Methods to Drive Down EP Inventory Costs

As electrophysiology (EP) lab volumes in the U.S. continue to rise and as new innovations in EP technologies and devices emerge, hospitals of all sizes are faced with similar supply chain issueshaving enough stock on hand, keeping physicians happy and controlling costs.

Cambridge Heart inks development, distribution deal Cambridge Heart has signed a non-exclusive development and distribution agreement with an undisclosed U.S. stress test manufacturer to develop a microvolt T-Wave alternans module.
House passes bill to help fund and train for AEDs in schools
The U.S. House of Representatives has passed the Josh Miller HEARTS Act, (H.R. 1380), legislation that establishes a federal grant program to help fund the placement of automated external defibrillators (AEDs) at elementary and secondary schools across the country. While also requiring school personnel to receive training in the operation of AEDs, the legislation will increase public awareness of sudden cardiac arrest (SCA) and the importance of AEDs in schools.
JAMA: Common ECG finding may indicate serious cardiac problems A routine electrocardiogram (ECG) that signals a disorder of the electrical conducting system in one part of the heart previously believed to be benign is associated with an increased risk for atrial fibrillation, pacemaker implantation or death, according to a study in the June 24 issue of the Journal of the American Medical Association.