Obsessive compulsive symptoms, obsessive compulsive disorder and related disorders in idiopathic parkinson's disease

Objective: The aim of this study is to evaluate patients with Idiopathic Parkinson's Disease (PD) in terms of obsessive-compulsive symptoms, Obsessive Compulsive Disorder (OCD) and Related Disorders, compare with a matched control group, and determine the relationship between the two phenomena. Material and Method: The Unified Parkinson's Disease Rating Scale, Frontal Assessment Battery (FAB), Parkinson's Disease Questionnaire (PDQ) and Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) were applied to 80 PD patients and Y-BOCS was administered to the control group consisting of 80 people. The relationship between PD and OCD and related disorders and obsessive-compulsive symptoms was evaluated. Results: Contamination obsession was found in 21.3% of patients and 16.3% of the control group; cleaning compulsion was found in 13.8% of patients and 8.8% of the control group. Two groups were compared in terms of obsessions (p=0.215) and compulsions (p=0.361); no statistically significant difference was found between the groups.A statistically significant correlation was found between FAB scores and PDQ-6 in the Parkinson's group(r= -0.359, p=0.001). A statistically significant difference was found between two groups in terms of FAB scores (p=0.001). Conclusion: PD is characterized by dysfunction in frontobasal ganglia circuits. A similar circuit is also important in OCD. Obsessions and compulsions, Hoarding Disorder, Skin Picking and Hair Picking Disorders may accompany PD. Family history increases any obsession and compulsion in PD. Keywords: Obsessive Compulsive Disorder, Obsessive Compulsive Spectrum, Parkinson's Disease, Hoarding Disorder, Skin Picking Disorder, Hair Picking Disorder