Journal
PARKINSONISM & RELATED DISORDERS
Volume 19, Issue 1, Pages 77-80Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.parkreldis.2012.07.008
Keywords
Parkinson's disease; Longevity; Handedness
Categories
Funding
- Novartis
- Roche
- Boehringer Ingelheim
- Ipsen
- NIH [1K23MH092735, 5R01AG024040]
- CleveMed/Great Lakes
- Neurotechnologies
- Michael J Fox Foundation
- Lippincott Williams Wilkins
- Neureca - Onlus
- Milan
- National Parkinson Foundation
- Parkinson Support Center of Kentuckiana
- CurePSP
- Parkinson Study Group
- Noscira
- Allon Therapeutic
- NATIONAL INSTITUTE OF MENTAL HEALTH [K23MH092735] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [R01AG024040] Funding Source: NIH RePORTER
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Background: A mean of 10 years elapse before patients with Parkinson's disease (PD) reach Hoehn & Yahr (H&Y) stage 4, and 14 years for stage 5. A small proportion of PD patients survive and are ambulatory for >= 20 years. We sought to identify features associated with long-duration PD (dPD). Methods: This five-center, case-control study compared 136 PD patients with >= 20 years of duration and H&Y stage <= 4 (dPD) to 134 H&Y-, age- and gender-matched PD patients between 10 and 15 years of disease (cPD). Results: By study design, there were no between-group differences in age, gender and H&Y. dPD subjects were younger at onset (p < 0.0001), had more psychosis (p: 0.038), were receiving higher levodopa equivalent daily doses (p: 0.02), were predominantly left-handed (p: 0.048), and had greater frequency of left-sided onset (p: 0.015) compared to cPD subjects. Both groups had similar rates of resting tremor, dementia and REM sleep behavior disorder. Conclusions: Early disease onset, left-handedness and left-sided onset are associated with long disease and ambulatory PD survival. The neurobiological basis of the prognostic value of lateralization deserves further investigation. (C) 2012 Published by Elsevier Ltd.
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