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Maria Angela Samis Zella, Dirk Bartig, Lennard Manes Richard Herrmann, Gesine Respondek, Günter Höglinger, Ralf Gold, Dirk Woitalla, Christos Krogias, Lars Tönges

• Progressive supranuclear palsy (PSP) belongs to the disease spectrum of Parkinsonian syndromes. Due to the chronic and progressive neurodegenerative course of the disease, PSP patients often have to be hospitalized to undergo diagnostic and therapeutic measures. The dynamics and characteristics of PSP inpatient treatment in Germany have not been investigated thus far. The current study analyzed trends of inpatient treatment in Germany for the years 2010–2017 based on the German DRG statistics ("diagnostic-related groups") in the category G23.- (other degenerative diseases of the basal ganglia) and with special focus on PSP (G23.1). Inpatient case numbers of the G23.- category comprised a total of 21,196 patients from 2010–2017, whereas the PSP subcategory (G23.1) amounted to 10,663 cases. In the analyzed time period, PSP patient numbers constantly increased from 963 in 2010 to 1780 in 2017 with yearly growth rates of up to 20%. Similar trends were observed for other Parkinsonian syndromes such as multiple system atrophy (MSA). Differentiating PSP inpatients by gender demonstrated a higher proportion of males (55–60%) in comparison to female patients for the entire observation period. The average age of hospitalized PSP patients over these years was between 72.3 and 73.4 years without relevant differences for gender. The most common comorbidities consisted of cardiovascular, neurological, muscular and urological disorders. In summary, the analysis demonstrates that PSP patients are increasingly hospitalized in Germany and the current concepts of stationary care have to differentiate standard practices for Parkinson’s disease (PD) to also address the needs of patients with PSP and other Parkinsonian syndromes.