Predictors of major neurological improvement after intravenous thrombolysis in acute ischemic stroke: a hospital-based study from south India
Abstract
Despite the increasing use of recombinant tissue plasminogen activator (rt-PA) in acute ischemic stroke, uncertainty persists about the short- and long-term outcome of the thrombolysed patients. To identify predictors of major neurological improvement at 24 h after intravenous rt-PA administration in patients of acute ischemic stroke and their relationship with outcome at 12 months. We analyzed the data of the patients with acute ischemic stroke treated as per the National Institute of Neurological Disorders and Stroke (NINDS) criteria with intravenous rt-PA between January 2000 and June 2009 at a tertiary care center in south India. Major neurological improvement was defined by an 8-point improvement in National Institute of Health Stroke Scale (NIHSS) score or an NIHSS score of 0 or 1 at 24 h. Good outcome was defined as a 12-month modified Rankin Scale (mRS) of 0 to 1. Of the 72 patients with acute ischemic stroke treated with intravenous rt-PA, 23 (32%) patients had major neurological improvement at 24 h. Age <60 years (OR 1.9, 95% CI 1.7 to 3.2), admission glucose levels <8 mmol/L (OR 3.87, 95% CI 1.9 to 9.2) and mild to moderate baseline stroke severity (NIHSS median score 10+ 6) were associated with major neurological im...Continue Reading
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