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.

Photoplethysmography promising as AFib screening tool

Continuous at-home monitoring with smart device-based photoplethysmography technology could be a viable strategy for AFib screening and early detection, according to a population-level study out of China.

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Algorithm spots AFib in seemingly normal EKGs

A study of more than 181,000 patients at the Mayo Clinic has proven the efficacy of an AI algorithm in spotting AFib on seemingly normal EKGs, the Daily Mail reports.

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Researchers pinpoint the ideal chest compression-depth ratio for OHCA survival

A combination of 107 chest compressions per minute at a depth of 4.7 centimeters is the optimal CCR-CCD (chest compression rate-chest compression depth) ratio for survival after an out-of-hospital cardiac arrest, researchers reported August 14 in JAMA Cardiology.

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Selective vs. non-selective His bundle pacing: Which is safer?

Non-selective His bundle pacing is noninferior to selective HBP in patients undergoing de novo permanent pacemaker implantation for bradycardia, according to a study that revealed similar outcomes for death and HF between the two therapies.

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Study finds ‘significant variation’ in CIED care quality

The odds a heart patient will experience complications after they’re implanted with a cardiac device vary depending on where they receive care, according to work published in the Annals of Internal Medicine July 30.

Cardiac arrest survival hits 70% in Hawaiian airports after AED installations

Sixty-nine people have survived out-of-hospital cardiac arrests at Hawaii’s airports since an AED program was first implemented in 2006, the Oregonian reports.

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AFib meds could elevate risk of fainting, falling

Medications used to treat atrial fibrillation—namely amiodarone—could increase older patients’ risk of fainting and falling, Danish researchers have found.

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Former NFL athletes see elevated risk of AFib

Despite lower risks for other CVD risk factors, former National Football League players are nearly six times more likely than their non-NFL peers to develop atrial fibrillation, according to a study published in the Journal of the American Heart Association.