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Tag: "pacemaker" at medical news

Alerts for safety of heart device

...egulate the heart rhythm. Many depend on either a pacemaker or an implantable defibrillator to keep their hear... increase of 49 per cent in patients fitted with a pacemaker or defibrillator. Fifty two warnings were issued covering nearly half a million pacemakers and nearl...

New pacemaker reduces risk of heart failure

...y says heart failure victims who get a new kind of pacemaker have only half the usual risk of being hospitalized with worsening heart trouble.// The device, Medtronic's InSync pacemaker, has been implanted in more than 3,000 people in the US since its approval by the FDA. It is intended for people with a par...

Epilepsy Patients Could Benefit From Pacemakers

...n epilepsy patients. Treating the condition with a pacemaker could avert many of these deaths say researchers. All of the patients in the study received an implantable device to monitor their heart rhythms. Researchers followed the group for about two years. Over that time, the patients experienced a total of...

Withdrawal Notice Issued For Older Pacemakers Due To Malfunctioning of the Device

...n a higher than normal moisture content within the pacemaker late in its life. The manufacturers say that no ...lures have been reported in the first 44 months of pacemaker use but the likelihood of occurrence increases with implant time. According to the report there are ...

Making MRIs Safe for Patients With Implantable Heart Devices

...tanium being the most widely used metal for modern pacemaker casings, which is almost nonmagnetic. Tough scar tissue also forms around heart devices after implantation, therefore preventing movement without surgical incisions. Overall, the study finds, MRI testing yielded good images with minor distortions or...

Stem Cells Could Replace Electronic Pacemakers

... or about to climb up a hill but researchers say a pacemaker created by // stem cells may bypass this problem. Animal studies have shown that genetically engineered heart cells from human embryonic stem cells could lead to a biological form of pacemaker, according to a new study. Researchers injected cluster...

Defect In Cardiac Cells Lead To Heart Failures

...uscle. A heart contraction begins when the heart’s pacemaker sends an electrical signal to heart-muscle cells. The electrical signal triggers the release of calcium from a large storage site within each muscle cell. The released calcium activates the muscle cell’s contractile machinery, which causes the cell, ...

Novel Biological Pacemaker Under Construction for Weak Hearts

...ists have developed a natural or rather biological pacemaker by fusing connective tissue cells of guinea pigs with heart muscle cells. The newly developed pacemaker can fire on it’s own and regulate the rhythm // of the heart in a more physiological way. Two sets ...

New Cardiac Angiography Technique For Improved Imaging Of Coronary Veins

...ld be used to evaluate the coronary veins prior to pacemaker lead placement, and other procedures. MDCT angiogr...planning of the procedure prior to surgery such as pacemaker placement," said lead author Dr. Georg Muhlenbruch....

Causes of Sudden Infant Death Researched

...fant death syndrome, or cot death) by showing that pacemaker cells in the brain appear responsible for gasping, but not normal breathing. Importantly, cot death has been proposed to result from a failure of auto resuscitation and gasping.' Dr. Jeffrey Smith of the U.S. National Institutes of Health and Dartmo...

Disturbance in Serotonin Levels Result in Reduced Gasping In Kids with SIDS

...f the hormone serotonin are disturbed in so-called pacemaker cells. These cells are a specific group of neurons...ound that when they took serotonin away from these pacemaker cells, the gasping decreased from about 20 gasps to two or three not enough for the baby to wake up....

Reliability of Pacemakers and Defibrillators to be Improved

... For the thousands of Americans who depend on the pacemaker or the defibrillator reliability of these devices ...ng heart. Dr. William H. Maisel, director of the pacemaker and device service at Beth Israel Deaconess Medical Center, in Boston authored two studies in this r...

Vagal Nerve Stimulation Works To Treat Severe Depression

.... A vagal nerve stimulator is similar to a cardiac pacemaker and is implanted in the chest with leads that run under the skin to the vagal nerve in the neck. The device emits electrical pulses to simulate the brain, and also is used to treat epilepsy. Doctors don't know exactly why vagal nerve therapy works...

Aggresive Therapy Needed for Cervical Spinal Cord Injuries

...hat less aggressive therapies, such as drugs and a pacemaker placed on top of the chest, simply were not suffic...hrine, to increase heart rate and a transcutaneous pacemaker on the chest. Their retrospective survey of 75 spinal cord injury patients at MCG Medical Center f...

Timing of Food Consumption Activates Genes in Specific Brain Area

...y clock that paces feeding behavior, the circadian pacemaker for feeding must be somewhere else, Dr. Yanagisawa said. To find the answer, his group did a simple but labor-intensive experiment. The scientists set the mice on a regular feeding schedule, then examined their brain tissue to find where Per genes ...

Callous Thieves Rob An Seriously Ill Child Of His Vital Heart Machine

...urned to the hospital just two weeks ago to have a pacemaker fitted and, on release, he was given a heart monitor so the hospital could keep a vital eye on his progress. Stephen had stated that after he had discovered that the machine was missing, was fearful of what might now happen. He said, “Stephen Og i...

Nerve Conduction Studies Safe for Patients with Implanted Cardiac Devices

...ere never detected by the sensing amplifier of the pacemaker or defibrillators. The NCS did not affect the programmed pacemaker or defibrillator settings and did not cause the defibrillator to discharge. The pacemaker and defibr...

MRI Detects Early Heart Damages In Patients

...the heart back into normal rhythm and one needed a pacemaker implanted to maintain normal heart rhythm, Patel said. The imaging technique that the team used is called delayed enhancement cardiac MRI. In this approach, the researchers inject trace amounts of the element gandolinium into patients before admini...

Magnets in Commercial Products may Cause a Fatal Attraction

... these magnets. Those concerned must consult their pacemaker clinic, opined June Davison, of the British Heart Foundation. MST...

Researchers Investigate Gene Linked With Circadian Liver Clock

...temporal mPer2 expression in isolation from master pacemaker signals by removing liver slices from mice carrying a fluorescent protein attached to mPer2. With this approach, luminescence signals showed a rhythmic profile that follows mPer2 activity. The authors bred the mouse strain with the conditionally a...

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