[Thrombolytic therapy for acute ischemic stroke].

In this paper, results of the recent clinical trials were reviewed, and problems in treating patients with thrombolysis were discussed. Data generated from randomized controlled trials over the past few years have shown that acute intervention can improve neurological outcome in patients with ischemic stroke. Intravenous recombinant tissue plasminogen activator has become established as an acute treatment for stroke. Intra-arterial thrombolysis is a developing modality for the treatment of the acute stroke that shows promise in restoring cerebral arterial supply. However, thrombolysis have not approved yet in any forms in Japan. Under this circumstance, thrombolysis should be carried out in GCP-compatible clinical trials, so far. The overall results of a clinical trial cannot necessarily generalized to all patients in the trial and all similar future patients. A difference between settings of a clinical trial and of general practice should be also noted. Early recognition of stroke symptoms and immediate transfer to a suitable treatment facility should bring thrombolysis to a larger number of stroke victims. Finally, successful treatment is due in part to selecting patients who are not at increased risk for intracranial hemorrhage based on clinical and imaging features, and therefore rapid in-hospital triage protocols are mandatory.