Objectives: Several non-motor symptoms (NMSs) were described in the prodromal Parkinson’s disease (PD). The aim of this study is to investigate
the impact of the presence of prodromal NMSs on clinical progression of PD.
Materials and Methods: We questioned the presence of NMSs in the prediagnostic stage in patients with PD. Group 1 reported at least one
prodromal NMS and Group 2 reported no prodromal NMSs. As recommended by the Movement Disorder Society Task Force, the total likelihood
ratios (LRs) of NMSs were calculated and correlated with disease progression. Clinical progression was determined by dividing the Unified Parkinson’s
Disease Rating Scale Part III total score by the duration of the disease. Generalized linear model (GzLM) was used to determine associations between
clinical progression rate and the predictor variables.
Results: Group 1 had 48 patients (24 male, 24 female), and Group 2 had 46 patients (32 male, 14 female). Both groups were similar in terms of
demographic and disease characteristics. Depression and constipation (for each symptom, 18 patients and 37.5%) were common in Group 1. The
rate of clinical progression was higher in Group 1 than in Group 2 (p=0.037). There was no significant correlation between clinical progression rate
and LRs of NMSs in Group 1 (rs=0.10, p=0.49). However, age of the diagnosis was the only significant factor associated with the clinical progression
(p=0.69).
Conclusion: Prodromal NMSs do not seem to impact the rate of disease progression, which may be explained by the non-dopaminergic and extra
nigro-striatal pathway that cause NMSs.
Ethics Ethics Committee Approval: The study was approved by the Ankara University Ethics Committee (03-160-18/2018). Informed Consent: All participants provided a written informed consent.
Objectives: Several non-motor symptoms (NMSs) were described in the prodromal Parkinson’s disease (PD). The aim of this study is to investigate
the impact of the presence of prodromal NMSs on clinical progression of PD.
Materials and Methods: We questioned the presence of NMSs in the prediagnostic stage in patients with PD. Group 1 reported at least one
prodromal NMS and Group 2 reported no prodromal NMSs. As recommended by the Movement Disorder Society Task Force, the total likelihood
ratios (LRs) of NMSs were calculated and correlated with disease progression. Clinical progression was determined by dividing the Unified Parkinson’s
Disease Rating Scale Part III total score by the duration of the disease. Generalized linear model (GzLM) was used to determine associations between
clinical progression rate and the predictor variables.
Results: Group 1 had 48 patients (24 male, 24 female), and Group 2 had 46 patients (32 male, 14 female). Both groups were similar in terms of
demographic and disease characteristics. Depression and constipation (for each symptom, 18 patients and 37.5%) were common in Group 1. The
rate of clinical progression was higher in Group 1 than in Group 2 (p=0.037). There was no significant correlation between clinical progression rate
and LRs of NMSs in Group 1 (rs=0.10, p=0.49). However, age of the diagnosis was the only significant factor associated with the clinical progression
(p=0.69).
Conclusion: Prodromal NMSs do not seem to impact the rate of disease progression, which may be explained by the non-dopaminergic and extra
nigro-striatal pathway that cause NMSs.
Ethics Ethics Committee Approval: The study was approved by the Ankara University Ethics Committee (03-160-18/2018). Informed Consent: All participants provided a written informed consent.
Primary Language | English |
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Subjects | Brain and Nerve Surgery (Neurosurgery) |
Journal Section | Articles |
Authors | |
Publication Date | June 30, 2022 |
Published in Issue | Year 2022 Volume: 75 Issue: 1 |