Epidemiological analysis of hospitalisations due to recurrent stroke in the Silesian Province, Poland, between 2009 and 2015

Background and aim: There is a lack of recent epidemiological studies on recurrent stroke (RS) in Poland. The aim of this study was to analyse all hospitalisations related to RS in Silesia - an industrial region covering 12% of the Polish population.

Material and methods: We carried out statistical analysis of data contained in stroke questionnaires transferred to the Polish National Health Fund by hospitals in Silesia, Poland, between 2009 and 2015.

Results: In the analysed period, the number of RS hospitalisations in Silesia was 18,063 (22.2% of all acute strokes). The percentage of RS significantly decreased during the period under consideration (p < 0.001). The same observation concerned recurrent ischaemic stroke (RIS), but not recurrent haemorrhagic stroke (RHS). The median hospitalisation time was 14 days for RHS, and 11 days for RIS. Large-artery atherosclerosis and cardioembolisms were significantly more often recognised in RIS than in first-ever ischaemic stroke (FIS) (consecutively, 38.2% vs 36.0%, and 21% vs 18.1%; p < 0.001). The in-hospital mortality rate was significantly higher for RS than for first-ever stroke (18.4% vs 17.2%; p < 0.001). The same observation was done for RIS vs FIS (16.2% vs 13.9%; p < 0.001), and for RHS vs FHS (39.8% vs 36%; p = 0.004). The rtPA therapy was applied to 5.3% of FIS and 3.2% of RIS patients (p < 0.001).

Conclusions: This is the first such comprehensive and long-term analysis of recurrent stroke in Silesia, Poland. It could help in the implementation of appropriate educational programmes, and thus help to improve the health status of society.