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Free-living energy expenditure reduced after deep brain stimulation surgery for Parkinson's disease.
MedLine Citation:
PMID:  22487156     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background:  The clinical picture in Parkinson's disease (PD) is characterized by bradykinesia, rigidity, resting tremor and postural instability. In advanced stages of the disease, many patients will experience reduced efficacy of medication with fluctuations in symptoms and dyskinesias. Surgical treatment with deep brain stimulation in the subthalamic nucleus (STN-DBS) is now considered the gold standard in fluctuating PD. Many patients experience a gain of weight following the surgery. The aim of this study was to identify possible mechanisms, which may contribute to body weight gain in patients with PD following bilateral STN-DBS surgery. Methods:  Ten patients with PD were studied before bilateral STN-DBS surgery, and seven patients were studied again 3 and 12 months postoperatively. Clinical examination and resting metabolic rate with and without medical treatment was measured before and after STN-DBS. Furthermore, free-living energy expenditure, body composition, energy intake, peak oxygen consumption, maximal workload and leisure time physical activity were measured before and 3 and 12 months after surgery. Results:  The STN-DBS operated patients had a significant weight gain of 4·7 ± 1·6 kg (mean ± SE) 12 months postoperatively, and the weight gain was in the fat mass. The free-living energy expenditure decreased postoperatively 13 ± 4% even though the reported dietary intake was reduced. A decreased energy expenditure took place in the non-resting energy expenditure. The reported daily leisure time activity, peak oxygen consumption and maximal workload were unchanged. Conclusion:  The STN-DBS operated patients have a significant postoperative weight gain, as a result of a decrease in free-living energy expenditure concomitant with an insufficient decrease in energy intake.
Authors:
Hans U Jorgensen; Lene Werdelin; Annemette Lokkegaard; Klaas R Westerterp; Lene Simonsen
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Publication Detail:
Type:  Journal Article     Date:  2011-12-28
Journal Detail:
Title:  Clinical physiology and functional imaging     Volume:  32     ISSN:  1475-097X     ISO Abbreviation:  Clin Physiol Funct Imaging     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-04-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137604     Medline TA:  Clin Physiol Funct Imaging     Country:  England    
Other Details:
Languages:  eng     Pagination:  214-20     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Clinical Physiology and Functional Imaging © 2011 Scandinavian Society of Clinical Physiology and Nuclear Medicine.
Affiliation:
Department of Neurology Department of Clinical Physiology, Bispebjerg Hospital, Copenhagen, Denmark Department of Human Biology, Maastricht University, Maastricht, The Netherlands.
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