The annual number of stroke events in the EU will increase from 613,148 in 2015 to 819,771 in 2035 an average increase of 34% (Stroke Alliance for Europe). One third of stroke survivors is left with aphasia, the incidence is estimated around 200,000 in Europe and 300,000 in the US.
Aphasia is an impairment of language, affecting the production and/or comprehension of oral and written communication. Aphasia can be so severe as to make communication with the patient almost impossible, or it can be very mild. It may affect mainly a single aspect of language use, such as the ability to retrieve the names of objects, or the ability to put words together into sentences, or the ability to read or write.