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DBS earlier in PD progression

A new study recommends

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#1 Rogerstar1

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Posted 13 February 2013 - 09:26 PM

Read all about it right here------->

http://www.medpageto...nsDisease/37355

http://www.medpageto...nsDisease/37355

Sorry, I guess you'll have to register to read. Doing so is free however and article scholarly and well written.

Edited by Rogerstar1, 13 February 2013 - 10:40 PM.


#2 Rogerstar1

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Posted 17 February 2013 - 04:15 PM

  • Brain stimulation may offer benefits earlier in the course of Parkinson's disease than it is currently used.
  • Note that there was no significant difference in serious adverse events between the two groups, but adverse events related to surgical implantation of the neurostimulation device occurred in 17.7% of patients.


Brain stimulation may offer benefits earlier in the course of Parkinson's disease than it is currently used, researchers found.

In a randomized, controlled trial, patients with early motor complications had a 26% increase in quality of life scores if they had neurostimulation compared with a 1% worsening for those on standard medical therapy, G. Deuschl, MD, of the University of Kiel in Germany, and colleagues reported online in the New England Journal of Medicine.

Since the treatment appears better than standard medical therapy "before the appearance of severe disabling motor complications," it may be an option for patients "at an earlier stage than current recommendations suggest," they wrote.

Mark Stacy, MD, of Duke University, who was not involved in the study, said some doctors have already been practicing that way.

"Many of us are already using the treatment earlier on, so this data is important because it confirms what we believe," Stacy said in an interview with MedPage Today. "It gives us more confidence to think about this with our patients. It helps us to provide data to people ... [to show comparative outcomes] 2 years in."

Neurostimulation is already an established treatment for advanced Parkinson's disease. But Deuschl and colleagues hypothesized that it would benefit patients in earlier stages of the disease as well.

They conducted the 2-year EARLYSTIM trial, enrolling 251 Parkinson's patients with early motor complications. Patients had a mean age of 52 and had had the condition for a mean of 7.5 years.

They were randomized to either neurostimulation of the subthalamic nucleus, or to standard medical therapy.

The primary endpoint was quality of life at 2 years as measured by the Parkinson's Disease Questionnaire (PDQ-39). Secondary outcomes included Parkinsonian motor disability, activities of daily living, levodopa-induced motor complications, and time with good mobility and no dyskinesia.

Overall, the team found that neurostimulation improved quality of life at 2 years by a mean 7.8 points, compared with a worsening of 0.2 points for those on medical therapy, a significant difference of P=0.002.

It also proved superior for the secondary endpoints, with significant mean differences in scores between groups for:
  • Motor disability (16.4 points, P<0.001)
  • Activities of daily living (6.2 points, P<0.001)
  • Levodopa-induced motor complications (4.1 points, P<0.001)
  • Time with good mobility and no dyskinesia (1.9 hours, P=0.01)



The differences were typically driven by improvements in the neurostimulation arm and not worsening in the medical therapy arm. For instance, there was no significant change from baseline in motor score and only minimal worsening in activities of daily living for those on medical therapy.

Deuschl and colleagues reported no significant differences in serious adverse events, which occurred in 54.8% of neurostimulation patients and 44.1% of those in the medical therapy group.

Two patients in the neurostimulation group and one in the medical therapy group committed suicide. Suicidal ideation and suicide attempts were of similar frequency in the two groups, but depression was more frequent among neurostimulation patients -- suggesting that stimulation isn't associated with a greater risk of suicide, they wrote.

Also, serious adverse events related to surgical implantation of the device occurred in 17.7% of patients, and that included a brain abscess and a case of unspecific edema -- both of which "resolved completely," they reported.

In an accompanying editorial, Caroline Tanner, MD, PhD, of Stanford University, called it "one of the most rigorously conducted trials of neurostimulation," but warned that the patients in the trial don't represent most patients with Parkinson's disease -- given that all were younger than 60 at the time of surgery, they didn't have dementia, and they all had a good response to levodopa challenge.

Only 11% of Parkinson's cases are diagnosed before age 60, Tanner wrote, and about a third tend to have dementia.

"Whether these results would be obtained in older patients with Parkinson's disease or in less-experienced medical centers is not known," she wrote.

Tanner was also cautious about suicide in the neurostimulation group. Since the risk of suicide appears to persist for years after surgery, she wrote that "careful and sustained monitoring should be a requirement."


The study was supported by grants from the German Ministry of Research, the French Programme Hospitalier de Recherche Clinique National, and Medtronic.
The researchers reported relationships with Medtronic, Lundbeck, Teva, Union Chimique Belge, Bayer, Meda, Orion, GlaxoSmithKline, Boehringer Ingelheim, Desitin, Gianni Public Relations, Eumecom, Cephalon, Abbott Laboratories, GE Healthcare, Bayer Schering, Thieme, Ipsen, Merck, Merz, Agueettant, Novartis, Eutherapie, BioProject, and Roche.
Tanner reported relationships with the Michael J. Fox foundation, ADAMAS Pharma, Impax Pharma, Parkinson's Institute, Parkinson's Disease Foundation, and Brin Foundation.







Primary source: New England Journal of Medicine
Source reference:
Schuepbach WMM, et al "Neurostimulation for Parkinson's disease with early motor complications" N Engl J Med 2013; DOI: 10.1056/NEJMoa1205158.
Additional source: New England Journal of Medicine
Source reference:
Tanner CM "A second honeymoon for Parkinson's disease?" N Engl J Med 2013; DOI:10.1056/NEJMe1214913.

#3 LarryH0123

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Posted 18 February 2013 - 09:38 AM

Thanks for posting this Rogerstar1. Interesting study. I've wondered about the possibiltiy of DBS for earlier stages, particularly with all of the adverse side effects of effective medication.

I'm also watching the research at University of Virginia on the application of MRI / Ultrasound Focused Surgery. There was a story on ABC World News about 6 months or a year ago. They used it initially to correct essential tremor in a woman who had the condition for many years in both arms. She had to eat over the sink and couldn't write letters to her grandsons who were both in the military overseas. After the procedure she could hold her hands out pretty steady and could write legibly. No incision, no anesthesia, no extensive recovery time. They are now researching application for PD.

#4 LarryH0123

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Posted 18 February 2013 - 10:16 AM

http://www.medicine....arkinsons-trial

Link above on research I mentioned in last post.

#5 Rogerstar1

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Posted 18 February 2013 - 10:41 AM

Thanks for posting. I had DBS in August of 2012 and am generally pleased with the result. While I can still have standard x-rays for dental and misc. reasons, due to wire and battery placement, MRIs are no longer a technique available to me. Another factor bearing on surgery timing as explained to me by one neurologist is to get it done while in good health before standard age related infirmities begin to crop up prompting surgeon disinclination/disapproval. Screening for DBS suitability is rigorous and my surgeon would only 'greenlight' me after concluding with an 85 percent certainty I would benefit. Regards.

Edited by Rogerstar1, 21 March 2013 - 04:54 AM.





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