Yamada K, Yoshimura S, Enomoto Y, Yamakawa H, Iwama T. Effectiveness of combining continuous cerebrospinal drainage and intermittent intrathecal urokinase injection therapy in preventing symptomatic vasospasm following aneurysmal subarachnoid haemorrhage. Br J Neurosurg. 2008;22:649-53 pubmed publisher
..This study suggests that combining continuous cerebrospinal drainage and intermittent intrathecal UK injection therapy is a relatively simple and effective method for symptomatic vasospasm prophylaxis in patients with aneurysmal SAH. ..