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.

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Philips, AHA partner to optimize survival for victims of sudden cardiac arrest

Royal Philips and the American Heart Association are collaborating for a new program devoted to increasing survival rates in patients who experience sudden cardiac arrest (SCA), the organizations announced Jan. 23.

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Leadless devices reduce infections in pacemaker-dependent patients

Leadless pacemakers are a viable alternative to conventional pacemakers in patients with a history of device infection and lead extraction, researchers reported in the January edition of Heart Rhythm.

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Abbott gains FDA approval for TactiCath AFib ablation catheter

Abbott on Jan. 21 announced the FDA approval of one of its atrial fibrillation (AFib) ablation catheters, the TactiCath Contact Force Ablation Catheter.

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2 hours in the ER enough to rule out risky arrhythmias in most syncope patients

The majority of patients who present to the emergency department (ED) after fainting likely don’t need to be monitored for more than two hours to rule out any dangerous underlying arrhythmias, Canadian researchers have found.

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Post-TAVR conduction abnormalities tied to worse outcomes

A prospective, single-center study from Denmark suggests nearly half of patients develop a new conduction abnormality after transcatheter aortic valve replacement (TAVR), impacting their short-term and long-term prognosis.

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Sudden cardiac arrest in young people linked to drugs, psychiatric ills

Young victims of sudden cardiac arrest (SCA) and death are more likely to have a history of cardiovascular disease and some relationship with drugs or psychiatric illness, according to research published Jan. 19 in the Journal of the American Heart Association.

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Women face higher risk of acute CIED complications than men

Women implanted with cardiac implantable electronic devices (CIEDs) like pacemakers, implantable cardioverter defibrillators and cardiac resynchronization therapy technologies are more likely to experience acute CIED complications than men who undergo the same procedures, according to work published Jan. 16 in the Journal of the American Heart Association.

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New mobile app connects pacemakers to smartphones

Medtronic announced on Jan. 15 the launch of a mobile app that connects four of the company’s pacemakers to patients’ smartphones and tablets, removing the need for bedside monitors or other remote monitoring equipment.

Around the web

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.

Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.