Objective: To analyze the value of puzzle resolution for cognitive testing in Parkinson´s disease patients.

Background: Cognitive decline and dementia are common among Parkinson disease (PD) patients. Those could be mild and early detection requires multiple testing that take time and need trained neuropyscologists.Our aim is to evaluate the puzzle resolution as a tool for screening patients that need a further exhaustive evaluation.

Method: Data were obtained from the baseline evaluation of COPPADIS -2015 cohort. We use a 16 pieces puzzle and we measure the number of pieces well placed at 5 minutes. We used the Parkinson´s Disease Cognitive Rating Scale ( PD-CRS) . We defined mild cognitive impairment and dementia based on the literature.

Results: In comparison to the control group less patients solved the puzzle and they also place less pieces correctly. By groups you can also see that at the dementia group less subjects placed pieces well and less  solved the puzzle than in the mild cognitive impairment or control groups Those patients thet solved the puzzle in less than five minutes had normal performances at the PD-CRS.

Conclusion: Puzzle resolution could be use as a quick cognitive screening test in PD patients.Subjects able to solve it in less than 5 minutes are unlike to suffer cognitive impairment.This work has been previously presented at Neurololgical Spanish Society Annual Meeting 2018 in Seville.

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MDS Abstracts - https://www.mdsabstracts.org/abstract/puzzle-resolution-as-cognitive-test-in-parkinsons-disease-patients/