hearts

The same researchers who last year developed "electronic tattoos" that bend and stretch on skin are now unveiling similar ultra-thin electronics, only these dissolve when their job is done.

Made of silicon, magnesium, and magnesium oxide and surrounded by a protective layer of silk, these "transient" electronics aren't built to last but rather to melt away and, in the process, reduce the need to pass or surgically remove tiny medical implants, researchers from Tufts and the University of Illinois write in the current issue of Science.

The researchers -- who have begun using their devices … Read more

When it comes to certain diseases -- think heart disease, diabetes, and various cancers -- some basic lifestyle changes are the best preventive medicine.

And while most of us know to eat a balanced diet, exercise, and abstain from smoking, it can be far more motivating to make healthy changes if we also know we're prone to certain diseases.

Enter Zuum, a free new iPad app that estimates your risk of common diseases and personalizes tips to prevent them and improve your overall health.… Read more

If you're not afraid to swallow your technology, you may want to check out new tech cleared by the Food and Drug Administration this week that lets you ingest a digital sensor powered by stomach acid that alerts your doctors about your health and your treatment habits.

The technology consists of a tiny, silicon-based sensor that, at 1mm wide (roughly the size of a grain of sand), can be consumed via pills and pharmaceuticals and pass through the body much like high-fiber food.

According to the developer, Proteus Digital Health, once the sensor is swallowed, stomach fluids that come into contact with it provide enough power to relay a signal that documents exactly when it was taken. This data is transmitted to a battery-powered patch worn on the skin that detects the signal and records the exact time the sensor was swallowed.… Read more

Radiation exposure is an occupational hazard for cardiologists performing a procedure called percutaneous coronary interventions (PCI -- better known as angioplasty), which helps restore blood flow to blocked arteries in patients with coronary artery disease. Lead aprons help, but they're not perfect, and they're heavy enough to take a toll.

Now a new system that employs robot-assisted stent and balloon placements to restore blood flow has received FDA clearance this week. Called CorPath 200, it allows cardiologists to work from inside a lead-lined cockpit, not only minimizing their radiation exposure but also improving their view of the angiography … Read more

Researchers are reporting that they have found, for the first time, that tiny electrical spinning tops ("rotors") within the heart cause atrial fibrillation (AF), a type of arrhythmia in which the heartbeat is faster and irregular.

What's more, they found that by targeting the so-called eye of the storm, they could actually slow or even terminate the AF, the multidisciplinary team from UC San Diego, UCLA, and Indiana University reports in the July issue of the Journal of the American College of Cardiology.

Today, catheter ablation is a common therapy used to treat AF, but because the … Read more

Perfect for outdoors enthusiasts, Google's My Tracks app records your path, speed, distance, and even elevation while you walk, run, bike, or do anything else that a GPS signal can follow. And for those who are a bit more serious about their training, the app even lets you hook up with a few third-party Bluetooth biometric sensors, including Zephyr HxM, Polar WearLink, and ANT+ monitors.

To get started, just open up My Tracks and hit the record button at the top of the screen. From there, so long as you have a strong GPS signal, My Tracks will plot … Read more

Arrhythmia, a heart rhythm disorder that affects millions of Americans every year, can lead to a stroke or even sudden cardiac death, if left untreated. And monitoring a patient's heart rhythm for a few minutes or even hours over the course of a doctor's visit often doesn't provide enough data for accurate diagnosis.

Enter the Zio Patch, a new wireless (and fully recyclable) device that adheres to the chest for up to 14 days of continuous monitoring, and can simply be removed and mailed in for results. "It's like the Netflix of heart care," … Read more

Workers cut off from office e-mail for five days exhibited more natural, variable heart rates and toggled between screens less frequently than those with e-mail access, according to new research out of the University of California, Irvine, and the Army's Natick Soldier Systems Center near Boston.

The "A pace not dictated by electrons" study of 13 civilian employees at the Army center is undoubtedly small, and the results, presented this week at a meeting of the Association for Computing Machinery in Austin, Texas, are only preliminary. Still, researchers say the findings were surprisingly consistent in favor of … Read more

Being obese can bring on a wide range of health complications, some less obvious than others.

So when a physician in Houston asked bioengineering students at Rice University to help relieve his obese patients' burden of breathing during surgery, the idea "sounded a little weird," said senior Norman Truong, according to a press release. But his team, calling themselves R-Aides, took on the challenge.

The resulting device literally lifts the burden obese patients carry on their abdomens during surgery by using a simple suspension device that consists of suction cups attached to a horizontal beam and tied in … Read more