on October 14, 2004
Published online before print October 14, 2004, doi: 10.1161/01.STR.0000144050.90132.8e
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Submitted on June 15, 2004
From the Department of Neurology (M.D., O.M., M.H.), University Heidelberg, Universitätsklinikum Mannheim, Mannheim; and Landesärztekammer Baden-Württemberg (A.P., M.F.), Stuttgart, Germany. * To whom correspondence should be addressed. E-mail: daffertshofer{at}neuro.ma.uni-heidelberg.de.
Background and Purpose--Transient ischemic attacks (TIAs) are warning signs of stroke. Recently, the hypothesis was raised that TIA bears a significant risk for death and dependence and requires the same complex diagnostic workup as a complete stroke. Methods--We prospectively collected pre- and in-hospital procedures, symptoms, outcome, complications, and therapies from a representative sample of all stroke-treating hospitals (n=82) in southwest Germany. Follow-up was attempted 6 months after discharge. End points were death or dependence in activities of daily living (Barthel Index <95, modified Rankin Scale (mRS) of 3 to 6, or institutionalization in a nursing home). Results--1380 TIA patients and 3855 stroke patients entered the database. During hospital stay, stroke incidence was 8% for TIA patients and another 5% within the first half-year. Similarly, for ischemic stroke (IS) patients these figures were 7% and 6% (P>0.05), respectively. Two percent of TIA patients died in hospital (5% afterward) compared with 9% of stroke patients (10% afterward, P<0.001). Seventeen percent TIA compared with 38% IS patients (P<0.05) were dependent at follow-up. Whereas an estimated preexisting deficit (mRS >2) was the strongest predictor for death or disability (baseline mRS odds ratio, 4.1; 95% CI, 2.3 to 7.2), admission to a stroke unit was a valid predictor for survival and independence (odds ratio, 0.4; 95% CI, 0.2 to 0.9). Conclusions--These data from a large, multicenter, nonselected, observational study underscore the "not so benign" prognosis for TIA patients. There is a relevant individual risk of early stroke, death, or disability in TIA patients. Management and treatment strategies are similar for both TIA and acute stroke.
Revised on August 3, 2004
Accepted on August 4, 2004
Transient Ischemic Attacks Are More Than "Ministrokes"
Michael Daffertshofer MD*;
Key words: cerebrovascular accident • disease management • ischemic attack, transient • stroke, acute
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