Management of Motor Fluctuations in Parkinson's Disease

Patient Characteristics and Diagnosis

A 77-year-old male with Parkinson's disease experiences motor fluctuations, with symptoms worsening 30-60 minutes before the next dose of carbidopa/levodopa, and has a decreased uptake in bilateral putamen consistent with PD on a DAT scan 1, 2

The American Academy of Neurology recommends optimizing the current regimen by implementing a protein redistribution diet, which improves motor function, reduces disability, and increases "ON" state duration, and taking levodopa at least 30 minutes before meals to maximize absorption 1, 3
Increasing rasagiline from 0.5 mg to 1 mg daily is recommended as clinical trials show it is more effective in reducing "off" time, although the exact evidence strength is not specified 1
Monitoring for side effects such as dyskinesias, nutritional status, homocysteine levels, and vitamin B status is crucial when implementing a protein redistribution diet and adjusting the carbidopa/levodopa regimen 1, 2

A protein redistribution diet with low protein breakfast and lunch and normal protein intake at dinner is advised to improve motor function and reduce disability 3
Using specialized low-protein foods designed for renal patients can help achieve protein redistribution 1

Adjusting the carbidopa/levodopa regimen, such as increasing the frequency of dosing or switching to a controlled-release formulation, may be necessary to reduce "off" time 1