Heart Rhythm

Hearts should have normal rhythm to their beats, but when these beats are out of synch, it causes inefficient pumping of blood. Irregular heart arrhythmias occur when the electrical signals that coordinate the heart's beats do not work properly. This can cause beats that are too fast (tachycardia), or too slow (bradycardia). Tachycardias include atrial fibrillation (AFib), supraventricular tachycardia, ventricular fibrillation, and ventricular tachycardia (VT). Bradycardias include sick sinus syndrome and conduction block. Electrophysiology arrhythmia treatments include medications, life style changes, and the EP lab interventions of catheter ablation, and implantable pacemakers or defibrillators.

Direct transfer to resuscitation center doubles odds of OHCA survival

People who experience out-of-hospital cardiac arrest (OHCA) are nearly twice as likely to survive if they are transferred directly to a hospital with 24-hour capability to perform PCI or targeted temperature management (TTM) versus another center, according to a meta-analysis published Nov. 28 in the Journal of the American Heart Association.

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Forbes: ‘Hearables’ could be next wearable to revolutionize healthcare

When consumers think of wearable personal health devices, they likely picture smartwatches or other wrist-worn gadgets. But as Forbes pointed out in a Nov. 26 article, new headphone-type wearables—dubbed “hearables”—have already grown into a $5 billion market and offer unique capabilities.

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Readmissions common, costly after ablation of MI-associated VT

Almost 1 in 5 patients are rehospitalized within 30 days of undergoing catheter ablation of MI-associated ventricular tachycardia (VT), according to a study from the Nationwide Readmissions Database. These patients rack up 38.9 percent higher cumulative hospital costs than those who aren’t readmitted, researchers reported in Circulation: Arrhythmia and Electrophysiology.

Digoxin concentration linked to platelet activation in AFib patients

Monitoring digoxin concentration and platelet activation in atrial fibrillation (AF) patients treated with vitamin K antagonists could be important for reducing those patients’ inherently elevated risk for CVD, according to a study published in the Journal of the American Heart Association Nov. 15.

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Johns Hopkins marries cardiology, engineering in $5.5M ADVANCE center

Half a decade of planning and millions of dollars have culminated in the Alliance for Cardiovascular Diagnostic and Treatment Innovation (ADVANCE), a joint engineering and cardiology center launched by Johns Hopkins University in an attempt to improve the diagnosis and treatment of a range of arrhythmia disorders.

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Risk factors fail to explain higher rates of sudden cardiac death in blacks

Even after adjusting for cardiovascular, behavioral and socioeconomic factors, black adults remain twice as likely to die from sudden cardiac death (SCD) as whites, suggests a study published in the Journal of the American College of Cardiology.

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Competitive sports appear safe for young athletes with ICDs

There were no serious adverse events related to competition in a study of 129 young athletes with implantable cardioverter defibrillators (ICDs), providing reassurance that moderate-to-intense physical activity in this population may be safer than previously thought.

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Study: Depressed patients see up to 7-fold higher risk for AFib

Individuals with clinical depression could face a more than seven-fold increased risk of atrial fibrillation (AF), especially in the earliest stages of their diagnosis, a population study out of Denmark suggests.