4.5 Article

Polyneuropathy monitoring in Parkinson's disease patients treated with levodopa/carbidopa intestinal gel

期刊

BRAIN AND BEHAVIOR
卷 11, 期 12, 页码 -

出版社

WILEY
DOI: 10.1002/brb3.2408

关键词

levodopa infusion; LCIG; Parkinson's disease; polyneuropathy

资金

  1. University of Helsinki

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The study found that 10.5% of PD patients in Finland developed new-onset polyneuropathy after starting treatment with LCIG. Additionally, patients who experienced significant weight loss greater than 1.5 were more likely to develop neuropathy, while oral B-vitamin substitution may help prevent polyneuropathy related to LCIG treatment.
Objectives Levodopa-carbidopa-intestinal-gel (LCIG) infusion is an effective treatment for advanced PD with motor fluctuations. Polyneuropathy occurs as a complication in 10-15% of patients. We wanted to assess the frequency of polyneuropathy in Finnish advanced Parkinson's disease (PD) patients with continuous LCIG infusion, and the value of different clinical monitoring parameters during follow-up. Materials and methods Patient records of PD patients started on LCIG infusion at Helsinki University Hospital who received nerve conduction studies at baseline and 6 months after treatment initiation were reviewed for epidemiological information, mini mental state examination, baseline and 6 months' UPRDS-III, weight, body mass index, levodopa dose (LD), plasma homocysteine levels, folate, vitamin B6 and B12. Results Out of 19 patients (n = 6 on B-vitamin substitution), two (10.5%) developed new-onset polyneuropathy after initiation of LCIG therapy (n = 0 with vitamin substitution). Neuropathy was associated with significant weight loss (BMI reduction > 1.5), but not with other monitoring parameters. Homocysteine rose significantly in patients not substituted with B-vitamin complex, but not in patients with B-vitamin substitution. Homocysteine changes correlated with LD changes in the absence of vitamin B substitution. After oral B-vitamin substitution, both patients' polyneuropathy remained electrophysiologically and clinically stable. Conclusions Rates of polyneuropathy in Finnish PD patients with LCIG treatment are comparable to previous studies. Patients' weight should be included in regular follow up monitoring and can be used for patient self-monitoring. Vitamin B substitution appears to reduce coupling between levodopa dose and homocysteine and may be useful to prevent polyneuropathy related to LCIG.

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