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Intrajejunal levodopa infusion in Parkinson's disease: A pilot multicenter study of effects on nonmotor symptoms and quality of life

Switching from oral medications to continuous infusion of levodopa/carbidopa gel reduces motor complications in advanced Parkinson's disease (PD), but effects on nonmotor symptoms (NMSs) are unknown. In this prospective open‐label observational study, we report the effects of intrajejunal levod...

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Published in:Movement disorders 2009-07, Vol.24 (10), p.1468-1474
Main Authors: Honig, Holger, Antonini, Angelo, Martinez-Martin, Pablo, Forgacs, Ian, Faye, Guy C., Fox, Thomas, Fox, Karen, Mancini, Francesca, Canesi, Margherita, Odin, Per, Chaudhuri, K. Ray
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Language:English
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Summary:Switching from oral medications to continuous infusion of levodopa/carbidopa gel reduces motor complications in advanced Parkinson's disease (PD), but effects on nonmotor symptoms (NMSs) are unknown. In this prospective open‐label observational study, we report the effects of intrajejunal levodopa/carbidopa gel infusion on NMS in PD based on standard assessments utilizing the nonmotor symptoms scale (NMSS) along with the unified Parkinson's disease rating scale (UPDRS 3 motor and 4 complications) and quality of life (QoL) using the Parkinson's disease questionnaire (PDQ‐8). Twenty‐two advanced PD patients (mean age 58.6 years, duration of disease 15.3 years) were followed for 6 months. A statistically significant beneficial effect was shown in six of the nine domains of the NMSS: cardiovascular, sleep/fatigue, attention/memory, gastrointestinal, urinary, and miscellaneous (including pain and dribbling) and for the total score of this scale (NMSST) paralleling improvement of motor symptoms (UPDRS 3 motor and 4 complications in “best on” state) and dyskinesias/motor fluctuations. In addition, significant improvements were found using the Parkinson's disease sleep scale (PDSS) and the PDQ‐8 (QoL). The improvement in PDQ‐8 scores correlated highly significantly with the changes in NMSST, whereas a moderately strong correlation was observed with UPDRS changes. This is the first demonstration that a levodopa‐based continuous dopaminergic stimulation is beneficial for NMS and health‐related quality of life in PD in addition to the reduction of motor fluctuations and dyskinesias. © 2009 Movement Disorder Society
ISSN:0885-3185
1531-8257
DOI:10.1002/mds.22596