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Electrophysiology & Arrhythmia


Patients with atrial fibrillation (AFib) who are admitted to rural hospitals have a 17 percent increased risk of death during their stay compared to those admitted to urban facilities, researchers reported in HeartRhythm.

Recent research provided sobering news on Americans’ ability to respond to cardiac arrest, which has about a 10 percent survival rate when occurring outside the hospital, according to the American Heart Association (AHA).

Patients with single-chamber (VVI) implantable cardioverter-defibrillators (ICDs) programmed with longer intervals for detecting arrhythmias experienced significant reductions in appropriate therapies, shocks and all-cause mortality when compared to patients with standardly programmed ICDs, according to a study published online Nov. 20 in JACC: Clinical Electrophysiology.

The incidence of young athletes experiencing sudden cardiac arrest during competitive sporting events is slim—just 0.76 cases in 100,000 athlete-years—but it does happen, according to one team of Canadian researchers who analyzed dozens of out-of-hospital cardiac arrests in an effort to dissect the underlying causes of these tragedies.

The first-ever proteome of the healthy human heart is complete, a team at the Technical University of Munich has reported—thanks to the successful logging of nearly 11,000 proteins and billions of cells.


Recent Headlines

Researchers analyze long-term benefit, safety of ICDs in patients with Brugada syndrome

Patients with Brugada syndrome (BrS) benefit from implantable cardioverter defibrillators (ICDs) but are at significant risk of device-related complications, according to the longest-term study to date on the topic.

Low serum calcium levels associated with sudden cardiac arrest

Patients with lower levels of calcium in the blood are more likely to experience sudden cardiac arrest (SCA), according to a study in Mayo Clinic Proceedings.

Watching an intense hockey game could double your heart rate

Hockey fans with cardiac disease might want to watch their heart rate a little more closely this winter, a team of Canadian researchers advises.

Drug reactions with NOACs in AFib patients could result in major bleeding problems

Patients prescribed non-vitamin K oral anticoagulants (NOACs) to manage symptoms of atrial fibrillation (AFib) could be at increased risk for major bleeding if they are taking certain common medications at the same time, a study published in the Journal of the American Medical Association states.

Contraindication for blood thinners common in AFib patients, associated with high stroke risk

Roughly 12 percent of patients with medical claims for atrial fibrillation (AFib) are contraindicated for blood thinning treatment and remain at a high risk for stroke, a new study found.

An alternative to pacemakers? Ablation method treats sinus bradycardia

A new approach to treating symptomatic sinus bradycardia (SB) led to increased heart rate and improved quality of life in a single-center study of 62 patients, particularly those under the age of 50.

Gasping during cardiac arrest linked to improved survival, brain function

Gasping during cardiac arrest was associated with a nearly four-fold increase of one-year survival with favorable brain function, according to a study of 1,888 out-of-hospital cardiac arrests.

AFib patients with diabetes have higher risk of death—but not bleeding events

Diabetic patients with atrial fibrillation (AFib) have a lower quality of life and are at increased risk of death and hospitalization. However, they are no more likely than other AFib patients to have thromboembolic or bleeding events, despite a higher frequency of anticoagulation therapy, according to new research.

Low-risk patients opt for annual ECGs—despite clinical recommendations

Despite many physicians’ reticence to recommend annual electrocardiograms as part of a yearly physical, a study conducted in Canada proved that more than one in five annual health exams lead to one.

Ablation reverses LVSD in patients with persistent AFib

Catheter ablation (CA) is an effective way to restore sinus rhythm and reverse left ventricular systolic dysfunction (LVSD) in patients with persistent atrial fibrillation (AFib), according to new research.