Effects of Extending the Time Window of Thrombolysis to 4.5 Hours: Observations in the Swedish Stroke Register (Riks-Stroke).
BACKGROUND AND PURPOSE: The European Cooperative Acute Stroke Study (ECASS) III trial and Safe Implementation of Thrombolysis in Stroke-International Stroke Thrombolysis Register (SITS-ISTR) data were published in 2008. Riks-Stroke, the Swedish Stroke Register, was used to explore how thrombolysis in the 3- to 4.5-hour window has been spread in different hospitals and patient groups and what effec