The nervous system is never silent, and neurons often show daily rhythms in their gene and electrical activities. These rhythms arise from near 24-hour feedback loops that involve identified genes ...

Christensen, Clayton M. "We've Got Rhythm! Medtronic Corp.'s Cardiac Pacemaker Business (TN)." Harvard Business School Teaching Note 698-056, March 1998.

A pacemaker is a small device implanted under the skin that controls abnormal heart rhythms. It's commonly used in people ...

Indeed, it was demonstrated that rhythms other than a sinus rhythm could be converted to the pacemaker-imposed rate if a sufficiently high voltage was applied. In these animals no clotting about ...

Ventricular paced rhythm was detected on 12-lead ECG. The widespread opinion that this constellation does not permit a diagnosis of ischemia on 12-lead ECG is not accurate, as this example shows.

Exposure to bright nights and dim days disrupts circadian rhythms, heightening mortality risk, while consistent daylight ...

By harnessing light, my colleagues and I designed a wireless, ultrathin pacemaker that operates like a solar panel. This design not only eliminates the need for batteries but also minimizes ...

The medical team led by Dr Balbir Singh, Chairman, Cardiology, Max Super Speciality Hospital, Saket, decided on an advanced ...

Elderly athletes with a lifelong history of training and competing in endurance events like marathons, triathlons and iron man challenges can have heart rhythm disturbances, known as arrhythmias. The ...

Background: A relaxation of the prohibition of scanning cardiac rhythm device patients is underway ... Methods: No restrictions were placed on pacemaker dependency, region scanned, device type ...

A study of more than 13 million hours of data, collected from light sensors worn by 89,000 people, has found exposure to bright nights and dark days is associated with an increased risk of death.