Changes in insomnia subtypes in early Parkinson disease

Area of Science:

• Neurology
• Sleep Medicine
• Clinical Research

Background:

• Insomnia is a common complaint, and its development in early Parkinson disease (PD) requires investigation.
• Understanding insomnia subtypes in drug-naive PD patients is essential for early management.

Purpose of the Study:

• To track the evolution of insomnia factors in drug-naive Parkinson disease patients over the first five years post-diagnosis.

Main Methods:

• A cohort of 182 drug-naive PD patients and 202 controls were assessed for insomnia at baseline and at 1, 3, and 5 years.
• Insomnia subtypes (sleep initiation vs. maintenance) were evaluated using validated questionnaires.
• Generalized estimating equation models were used for statistical analysis.

Main Results:

• Overall insomnia prevalence did not differ between PD patients and controls at 5 years.
• Sleep maintenance problems increased significantly in PD patients, associated with dopamine agonist use and depression scores.
• Sleep initiation problems decreased over time, linked to reduced daytime sleepiness.

Conclusions:

• Early Parkinson disease is characterized by shifting insomnia subtypes, with a notable rise in sleep maintenance issues.
• Dopamine agonist therapy and depressive symptoms are associated with increased sleep maintenance problems.
• Individualized assessment and intervention for insomnia subtypes are recommended for early PD management.