Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study shows possible link between Parkinson’s medication and cardiac valve disease

29.04.2004


A recent study of Parkinson’s disease patients who use the medication pergolide shows a possible link between pergolide and injured cardiac valves. Study details and conclusions will be presented at the American Academy of Neurology 56th Annual Meeting in San Francisco, Calif., April 24 – May 1, 2004.



Valvular heart disease has been reported by various groups, totaling about 25 patients with Parkinson’s disease who take pergolide. "These reports are anecdotal, from uncontrolled case studies," notes study author Richard B. Dewey, Jr., MD, associate professor of neurology, University of Texas Southwestern Medical Center in Dallas. "We were interested to know if this is a rare, idiosyncratic event or a common problem which has until now escaped notice."

Dewey and fellow researchers sent letters to more than 200 patients known to be taking pergolide for Parkinson’s disease, and the responders who wished to continue pergolide were urged to undergo echocardiography. Echocardiograms were performed on 46 patients, and scores for valvular regurgitation (leakage) were compared to an age-matched control group from the Framingham Study (a well-documented heart disease study).


Two outcomes were compared: the presence of abnormal valvular leakage; and the presence of clinically significant leakage using criteria similar to that employed by the FDA in the fenfluramine/ phentermine ("Fen-Phen" diet aid) studies.

Eighty-nine percent (41) of pergolide-treated patients had some degree of valvular insufficiency. In two of three valves for which there is control data (the mitral and aortic), the study showed an approximately two- to three-fold increased risk (odds ratio 3) of regurgitation in the pergolide patients. In the tricuspid valve there was an estimated 14-fold increased risk of significant leakage (odds ratio 18).

"Our study demonstrates that pergolide may injure cardiac valves and, since they are available, consideration should be given to switching patients to an alternate dopamine agonist," concludes Dewey.


The American Academy of Neurology, an association of more than 18,000 neurologists and neuroscience professionals, is dedicated to improving patient care through education and research. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as stroke, Alzheimer’s disease, epilepsy, Parkinson’s disease, autism and multiple sclerosis.

Kathy Stone | EurekAlert!
Further information:
http://www.aan.com/press/

More articles from Studies and Analyses:

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

nachricht Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>