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Electrophysiology & Arrhythmia


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.

From pocket-sized electrocardiograms to watches that measure blood glucose levels, the field of medical technology is rapidly evolving. But these innovations, though oftentimes successful, aren’t necessarily living up to what scientists want them to be, according to presenters at the American Heart Association’s Scientific Sessions 2017.

Men are more likely to receive bystander cardiopulmonary resuscitation (CPR) in public locations than women and are more likely to survive cardiac arrest in those situations, according to research presented Nov. 11 at the American Heart Association’s (AHA) scientific sessions in Anaheim, California.

A new left atrial appendage (LAA) closure device can be implanted with a high success rate and slashes the one-year risk of stroke in nonvalvular atrial fibrillation (NVAF) patients, according to the researchers of the device’s pilot trial.

More cardiac arrest victims will survive if emergency medical dispatchers give cardiopulmonary resuscitation (CPR) instructions over the phone and if infants and children receive rescue breaths in addition to chest compressions, according to updated CPR guidelines released Nov. 7 by the American Heart Association (AHA).


Recent Headlines

ECG reveals clinical findings obscured by left ventricular hypertrophy

A man born with a congenital heart murmur developed systemic arterial hypertension as an adult. At age 50, he went to the hospital because of dyspnea. He also had a pulmonic valve ejection click and murmur of pulmonic stenosis. When at the hospital, his echocardiogram showed hypertrophy of both ventricles as well as an enlarged right atrium.

Electrical, mechanical activation of left ventricle strongly correlated

A close relationship exists between the timing of left ventricular (LV) electrical activation and peak contraction in dyssynchronous heart failure patients, according to a new study.

Man vs. machine: A fair match when it comes to cardiac ablation

Whether guided by robotic navigation (RN) or the hands of a physician, catheter ablations demonstrated comparable results in a study of 258 patients treated for atrial fibrillation (AFib). 

New study suggests refining ablation targets in AFib

Complex fractionated atrial electrograms (CFAE) ablations and continuous electrical activity (CEA) ablations have been proposed or the treatment of persistent atrial fibrillation (AFib). But a new study suggests targeting bipolar electrograms with less fractionation. According to the researchers, these may be better targets because they are more likely to be focal electrical sources.

Backup pacemakers? Study finds two mechanisms to support the sinoatrial node

A new study identifies two backup mechanisms that support the sinoatrial node (SAN) in its tireless task of efficiently keeping the heart beating even under adverse circumstances and in the face of arrhythmias.

Scientists ID mathematical method to measure catheter ablation effectiveness

A mathematical method to measure electrical communications within the heart has been shown to be useful in predicting the effectiveness of catheter ablation.

iRhythm, Stanford Machine Learning create comprehensive cardiac arrhythmia detection algorithm

In a collaboration between digital healthcare company iRhythm and the Stanford Machine Learning Group (SMLG), an algorithm has been developed to detect 14 different cardiac output classes, including 12 arrhythmias.

Breast implants could skew ECG results

New research from Monaco suggests that breast implants can impede electrocardiogram (ECG) recordings, leading to false readings and potentially incorrect heart attack diagnoses.

Extended exposure to airport noise may increase risk of stroke, heart flutter

Living near an airport may make for a quick commute when getting out of town, but that convenience may come at a cost. New research suggests such an environment, with long-term exposure to aircraft noise throughout the day, may increase risk of hypertension, heart flutter and stroke.

New wireless, battery-free pacemaker is powered by microwaves

Researchers from Rice University and the Texas Heart Institute are introducing a wireless pacemaker that can be implanted directly into a patient’s heart at this week's IEEE’s International Microwave Symposium in Honolulu, running through June 9.