SAH DCI calculates the risk for delayed cerebral ischemia (DCI) after subarachnoid hemorrhage (SAH) based on several classification systems that are published in scientific journals.
The basic module calculates 3 parameters. It uses the WFNS SAH score and the modified Fisher score to calculate the VASOGRADE risk category.[1,2]
The advanced module calculates 7 parameters. It uses some more input parameters and also calculates the BEHAVIOR score and the risk chart category as published by De Rooij et al.[3,4] In both modules, a report can be sent by email that includes all user-entered parameters and a full report as displayed in the app.
This app has been developed and tested by a neurosurgeon, and incorporates CE-marked technology for risk minimization inspired by the European MEDDEV guidelines and FDA guidance on mobile medical applications.
 Frontera, J. A., & Claassen, J. (2006). PREDICTION OF SYMPTOMATICVASOSPASM AFTER SUBARACHNOID HEMORRHAGE: THE MODIFIED FISHER SCALE. Neurosurgery, 59(3), 529–538. http://doi.org/10.1227/01.NEU.0000228680.22550.A2
 de Oliveira Manoel, a. L., Jaja, B. N., Germans, M. R., Yan, H., Qian, W., Kouzmina, E., … Tseng, M.-Y. (2015). The VASOGRADE: A Simple Grading Scale for Prediction of Delayed Cerebral Ischemia After Subarachnoid Hemorrhage. Stroke, 1–7. http://doi.org/10.1161/STROKEAHA.115.008728
 Jabbarli, R., Reinhard, M., Roelz, R., Shah, M., Niesen, W.-D., Kaier, K., … Van Velthoven, V. (2015). Early identification of individuals at high risk for cerebral infarction after aneurysmal subarachnoid hemorrhage: the BEHAVIOR score. Journal of Cerebral Blood Flow & Metabolism, (February), 1–6. http://doi.org/10.1038/jcbfm.2015.81
 De Rooij, N. K., Greving, J. P., Rinkel, G. J. E., & Frijns, C. J. M. (2013). Early prediction of delayed cerebral ischemia after subarachnoid hemorrhage: Development and validation of a practical risk chart. Stroke. http://doi.org/10.1161/STROKEAHA.113.001125