A heart attack is a life-threatening condition, with patients remaining at risk of premature death long after the actual attack—50% to 60% of patients die subsequently as a result of sudden cardiac death, triggered by cardiac ...
Jun 28, 2024
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When a beating heart slips into an irregular, life-threatening rhythm, the treatment is well known: deliver a burst of electric current from a pacemaker or defibrillator. But because the electricity itself can cause pain, ...
Aug 28, 2013
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Scientists from the McEwen Centre for Regenerative Medicine, University Health Network, have developed the first functional pacemaker cells from human stem cells, paving the way for alternate, biological pacemaker therapy.
Dec 14, 2016
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An international clinical trial, led by Emory Heart & Vascular Center researchers, reports excellent outcomes for the world's smallest, minimally invasive cardiac pacemaker, the Micra Transcatheter Pacing System (TPS).
May 19, 2017
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(Medical Xpress)—Device maker Medtronic has accomplished a feat in device miniaturization, this time in the form of an implantable cardiac device the size of a large vitamin. Earlier this month, Minneapolis-based Medtronic ...
It has the makings of a science fiction movie: Zap someone's brain with mild jolts of electricity to try to stave off the creeping memory loss of Alzheimer's disease.
Jan 20, 2013
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More than 3 million adults in the U.S. are living with epilepsy. It's a seizure disorder caused by abnormal brain activity. The seizures can lead to physical injury, emotional health issues or even death.
Feb 23, 2022
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Implantable medical devices including cardiac pacemakers and brain pacemakers are increasingly prevalent, although replacing their batteries surgically is a drawback for long-term functionality and patient health. Current ...
The implantable pacemaker, a medical marvel that has extended millions of lives since its invention nearly 60 years ago, is getting a 21st century makeover.
Oct 28, 2015
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As the number of pacemakers implanted each year reaches into the millions worldwide, improving the lifespan of pacemaker batteries has been of great concern for developers and manufacturers. Currently, pacemaker batteries ...
Jun 23, 2014
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A pacemaker (or artificial pacemaker, so as not to be confused with the heart's natural pacemaker) is a medical device which uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow the cardiologist to select the optimum pacing modes for individual patients. Some combine a pacemaker and defibrillator in a single implantable device. Others have multiple electrodes stimulating differing positions within the heart to improve synchronisation of the lower chambers of the heart.
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