Screening methods for early detection of cerebral vasospasm

The invention relates to screening methods and test systems for in vitro diagnosis and detection of an increased risk of vasospasm in a patient. In addition, the invention describes the use of GAPDH and / or Hsc70 for the diagnosis of an increased risk of vasospasm. Further, a method for identifying a pharmaceutically active substance for the prevention and / or treatment of cerebral vasospasm and a method for screening a substance library for identifying a pharmaceutically active substance for the prevention and / or treatment of cerebral vasospasm are described. Also disclosed pharmaceutically active substances and combination preparations.