Swiss SOS MoCA - DCI Study

Inclusion Criteria: For part 1 of the study: Participants fulfilling all of the following inclusion criteria are eligible for the study: * Consent of the patient or consent of patient's next of kin (plus consent of an independent physician if patient is unable to consent) * Aneurysmal SAH * Age: ≥18 * Time of aSAH known (IMPORTANT: at least approximated. Time of aSAH refers to the bleed that lead to hospital admission; warning leaks in the patient history are not considered aSAH in this context) * Complete aneurysm occlusion therapy within 48h after aSAH * Glasgow coma scale (GCS) ≥ 13 points at time point 48h - 72h after aSAH * Fluent language skills in either English, German, French, or Italian For part 2 of the study: Participants fulfilling all of the following inclusion criteria are eligible for the study: * Consent of the patient or consent of patient's next of kin (plus consent of an independent physician if patient is unable to consent) * Age: ≥18 * Acute brain injury that requires a in-patient treatment, e.g. for (surgical) treatment of a brain tumor, a cerebral hemorrhage, a hydrocephalus, stroke, or traumatic brain injury, with stable neurological and general health status * Glasgow coma scale (GCS) ≥ 13 points * Fluent language skills in either English, German, French, or Italian Exclusion Criteria: For part 1 of the study: The presence of any one of the following exclusion criteria will lead to exclusion of the participant: * SAH due to any other cause …