Bir hasta, bir kader: Parkinson'un ilerlemesi Markers Initiative (PPMI) kohortunun bir küme analizi.

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BackgroundParkinson's disease (PD) is characterized by heterogeneity. While previous efforts have aimed to categorize patients by clinical subtypes, these classifications have not reliably predicted outcomes, underscoring the complexity and variability of disease progression.MethodsUsing data from the Parkinson's Progression Markers Initiative (PPMI), we conducted a longitudinal analysis of 209 individuals with PD over five years. We used cluster analysis to identify trajectory clusters in the progression of motor symptoms. Participants were categorized based on baseline variables, including age, sex, race, BMI, genetic mutation status, medical history, presence of jaw and limb tremors, and alpha-synuclein seeding status. Motor and non-motor outcomes, such as gait abnormalities, dyskinesia, motor fluctuations, dystonia, cognitive impairment, hallucinations, and others, were evaluated, along with the progression of the levodopa equivalent daily dose (LEDD). Sankey plots illustrated patient trajectories from baseline to outcome groups over time.ResultsTrajectory cluster analysis of MDS-UPDRS Part III scores identified three progression patterns: slow, intermediate, and rapid, with higher baseline BMI associated with faster motor progression (P  0.05).ConclusionThese findings highlight the existence of highly individualized clinical trajectories, even among patients with similar baseline characteristics, within the specific set of baseline variables examined in this study. This emphasizes the need for a personalized, patient-centered approach in both the management and study of Parkinson's disease.

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