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A small percentage of patients who present to emergency departments with acute stroke have recurrences within 90 days. These authors derived a Web-based scoring tool for identifying patients at risk for recurrent stroke. The tool — the Recurrence Risk Estimator at 90 days (RRE-90; available at http://www.nmr.mgh.harvard.edu/RRE/) — integrates clinical and imaging information available in the acute care setting.
In a retrospective study, the authors used a Cox regression model with time to recurrent stroke to identify predictors of recurrence in 806 consecutive patients with ischemic stroke who presented to a single center between 2003 and 2006. The rate of recurrent stroke at 90 days was 6.0% and is consistent with rates reported in other st…