Abstract
IntroductionProgressive supranuclear palsy (PSP) variants other than PSP-Richardson Syndrome (PSP-RS) have been recognized, including PSP with speech and language problems (PSP-SL). Given the reported sleep disruptions in PSP-RS, we investigated sleep abnormalities in PSP-SL. MethodsFour sleep-related screening questions were given to the caregivers of 90 patients with PSP-SL (59 suggestive of PSP-SL and 31 possible PSP-SL) and 71 probable PSP-RS (prob. PSP-RS) patients. ResultsAt least one sleep-related disturbance was observed in 35.6% of suggestive of PSP-SL, 38.7% of possible PSP-SL, and 67.6% of prob. PSP-RS, the most common being “unable to fall or stay asleep”. Prob. PSP-RS showed higher frequency of “screaming or talking in sleep”, “acting out dreams”, and “unable to fall or stay asleep” compared to both PSP-SL groups, but did not differ from possible PSP-SL in “excessive daytime sleepiness”. ConclusionSleep abnormalities are common in PSP-SL, but less frequent than prob.PSP-RS.
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