Navigation Links
Reliability of Pacemakers and Defibrillators to be Improved

Inspite of the reliability of implanted cardiac pacemakers and defibrillators having improved studies have shown that these devices still tended to malfunction// at times.

For the thousands of Americans who depend on the pacemaker or the defibrillator reliability of these devices is an important issue. The pacemaker’s job is to keep the heart beating regularly whereas the defibrillator delivers a shock to restart a malfunctioning 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 regard. The results of the studies have been published in the April 26 issue of the Journal of the American Medical Association.

One study examined data supplied by device manufacturers to the U.S. Food and Drug Administration from 1990 to 2002 during which 2.25 million pacemakers and 415,780 defibrillators were implanted in Americans. Data has revealed that 8,834 pacemakers and 8,489 defibrillators were removed because they malfunctioned.

The second study, reviewed data from three registries from North America, Denmark and the United Kingdom and found similar malfunction rates.

The studies have indicated that pacemaker reliability has improved considerably since the 1980s, and that it continued to improve in the 1990s. On the other hand defibrillator reliability decreased from 1998 to 2002, when there was an increase in the number and rate of malfunctions, but then declined again down to the lowest levels in the past decade.

Of course the possibility of complications during a replacement surgery is an important factor to be considered during malfunctioning of an implanted defibrillator acts up. Data on 533 patients who underwent replacement surgery found that 43 of them had complications in the following three months. Two patients died of infections after surgery.

The somewhat unpredictability of pacema kers and defibrillators first became headline news when the Guidant Corp. issued an alert saying that about 28,000 pacemakers had defects that could make them malfunction. In addition it was revealed that the company had decided not to issue alerts about life-threatening defects in some of its implanted defibrillators. Since then the U.S. Food and Drug Administration has increased its watch of such heart devices.

Maisel’s study found the annual replacement rate for pacemakers in the United States due to malfunction was 4.6 per 1,000 implants. For defibrillators, the rate was 20.7 per 1,000 implants. The annual replacement rate for pacemakers decreased steadily over the years, while the defibrillator replacement rate decreased from 1993 to 1996, and then rose sharply. More than half the defibrillator malfunctions occurred in the last three years of the study.

There were 30 deaths attributed to device failure from 1990 to 2002 among pacemaker patients and 31 among the much smaller number of defibrillator patients.

According to Maisel the study only calls for an ongoing monitoring of device performance. Industry needs to be reporting device performance in a more timely fashion, informing physicians and patients of malfunction.

At the same time, people who have the devices implanted need to have "a more realistic expectation of device performance," Maisel said
'"/>




Related medicine news :

1. Epilepsy Patients Could Benefit From Pacemakers
2. Withdrawal Notice Issued For Older Pacemakers Due To Malfunctioning of the Device
3. Stem Cells Could Replace Electronic Pacemakers
4. Defibrillators saving lives but price is an issue
5. Public Defibrillators Found To Improve Survival Rate
6. Defibrillators In Public Places Will Help Cardiac Patients
7. New Implantable Cardioverter Defibrillators to avoid unnecessary shocks
8. Defibrillators Can Only Put off Heart Failure but Cannot Prevent One
9. Complication Associated With Heart Defibrillators
10. Omega -3 Fatty Acids Better than Implanted Defibrillators
11. Defibrillators Should Be Available in Ski Resorts
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/28/2017)... ... June 28, 2017 , ... Eating disorders have the highest mortality rate of ... one person dies as a direct result from an eating disorder in the U.S. ... providers. The iaedp Foundation meets this challenge by offering what has become the leading ...
(Date:6/28/2017)... ... June 28, 2017 , ... Park Systems , ... Luncheon for all SEMICONWest attendees and Park customers on July 11, 2017 ... from Dr. Sang-il Park, Chairman & CEO of Park Systems, and Prof. Krishna ...
(Date:6/28/2017)... (PRWEB) , ... June 28, 2017 , ... ... assistance and financial consultations to communities in northern Virginia and DC, is announcing ... help provide for patients with Alzheimer’s and other disorders that lead to memory ...
(Date:6/27/2017)... PA and London UK (PRWEB) , ... June 27, 2017 , ... ... applying to a clinical study is whether they can trust the sponsor to pay ... it is vital that sponsors and CROs establish payment strategies that encourage sites to ...
(Date:6/27/2017)... ... 27, 2017 , ... Building on the success of the ... sixth state to pass legislation which ensures that children can possess and use ... the states of Alabama, Arizona, Florida, Utah and Washington who have also approved ...
Breaking Medicine News(10 mins):
(Date:6/13/2017)... Ind. , June 13, 2017 Zimmer Biomet ... musculoskeletal healthcare, today announced that the U.S. Food and Drug ... dated June 3, 2015 relating to its Zhejiang, ... "The successful clearance of the ... manufacturing facility is a measure of the progress ...
(Date:6/10/2017)... June 9, 2017  Shane K. Burchfield, DPM, is recognized by ... as a Podiatrist in Alabama . ... First Foot Care. He brings over 20 years of experience, as ... and healthcare, to his role. ... PC is pleased to welcome you to his practice," ...
(Date:6/8/2017)... 8, 2017  Less than a month ago, amateur ... 200,000 companies, including hospital networks, in over 150 countries. ... of the largest online extortion attempts ever recorded. With ... it is imperative that providers understand where the risks ... this — and many other very real cyber threats.  ...
Breaking Medicine Technology: