Hyposmia in a simple smell test is associated with accelerated cognitive decline in early Parkinson's disease

ConclusionsThe decline of cognitive function in early PD is more rapid in patients with hyposmia at diagnosis, compared to normosmic ones. A simple smell test may contribute to identify patients at risk of accelerated decline in global cognition, verbal memory, and processing speed within the first 7  years from diagnosis.

Source: Acta Neurologica Scandinavica - November 4, 2018 Category: Neurology Authors: Kristian Varden Gjerde, Bernd M üller, Geir Olve Skeie, Jörg Assmus, Guido Alves, Ole‐Bjørn Tysnes Tags: ORIGINAL ARTICLE Source Type: research