Comparison in detection of prodromal Parkinson's disease patients using original and updated MDS research criteria in two independent cohorts.

Abstract

INTRODUCTION:

MDS research criteria for prodromal Parkinson's disease (pPD) were published in 2015 and updated in 2019. We aimed to determine the difference in pPD patient detection rates in two cohorts recruited via gastrointestinal symptoms (PARCAS study) and the presence of a probable REM sleep behaviour disorder (PDBIOM study) using the original and updated criteria.

METHODS:

We evaluated all risk and prodromal markers, except genetic testing, plasma urate and physical inactivity, in both cohorts and DaT scan, diabetes mellitus type II and cognitive deficit in the PARCAS cohort. Thresholds of 50% probability for possible pPD and 80% for probable pPD were used.

RESULTS:

PPD status as identified by the original/updated criteria showed differences for probable pPD (n = 8/9; original/updated criteria) and possible pPD (n = 9/13) in the PARCAS cohort (total n = 158), as well as for probable pPD (n = 19/21) and possible pPD (n = 6/3) in the PDBIOM cohort (total n = 48). A high concordance rate was found between the two criteria sets (p < 0.001 for all groups).

CONCLUSION:

All probable pPD cases remained in the same category after evaluation with both criteria; three possible pPD cases based on the original criteria exceeded the threshold for probable pPD based on the updated criteria, and five possible new pPD cases were detected, with only one shift in the opposite direction. The updated MDS pPD research criteria tend to identify more patients as positive, yet their accuracy needs to be determined in prospective studies.

• Authors: Kristina Kulcsarova, Joaquim Ribeiro Ventosa, Eva Feketeova, Milan Maretta, Norbert Lesko, Miroslav Benca, Vladimir Han, Laura Gombosova, Janette Baloghova, Miriam Slavkovska, Maria Brosmanova, Zuzana Vancova, Jan Lepej, Miroslava Rabajdova, Lubos Ambro, Stefan Toth, Filip Kudela, Igor Kudela, Lujza Strigacova, Veronika Roskovicova, Zuzana Gdovinova, Matej Skorvanek
• Journal: Parkinsonism & related disorders (Parkinsonism Relat Disord) Vol. 87 Pg. 48-55 (06 2021) ISSN: 1873-5126 [Electronic] England
• PMID: 33964786 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2021 Elsevier Ltd. All rights reserved.

Topics

• Aged
• Cohort Studies
• Female
• Gastrointestinal Diseases (diagnosis, etiology)
• Humans
• Male
• Middle Aged
• Parkinson Disease (complications, diagnosis)
• Prodromal Symptoms
• REM Sleep Behavior Disorder (diagnosis, etiology)