Invasive neuromonitoring with an extended definition of delayed cerebral ischemia is associated with improved outcome after poor-grade subarachnoid hemorrhage. - Veldeman M; Albanna W; Weiss M; Conzen C; Schmidt TP; Schulze-Steinen H; Wiesmann M; Clusmann H; Schubert GA (Journal of neurosurgery, 2020)