... risk of ischemic stroke: results of an international randomized trail. N Engl Med 19 85; 313 : 11 91 – 12 00. 11 3. Bove EL, Fry WJ, Gross WS et al. Hypotension and hypertension as consequences of ... factors in stroke. Stroke 19 84; 11 05– 11 11. 14 . Frost EAM. Some inquiries in neuroanesthesia and neurological supportive care. J Neurosurg 19 84; 60: 673. 15 . Lanier WL, Stangland KJ, Scheithauer BW, ... Number of patients (%, range)Mortality Number of patients (%, range)Without shunt* 4253 16 5 (3.8, 1. 1–80) 59 (1. 4, 0–2.0)With shunt 4303 16 3 (3.8, 21 71) 71 (1. 7, 05–3.5)Selective use of shunt...