Prehospital and Disaster Medicine (C, lights and sirens) for 31% of thrombolyzed patients during the 1st period, and for 80% during the 2nd period. The mean time ambulance personnel spent at the home was 20 minutes during both periods. In-hospital door-to-needle time was < 60 minutes in 11% of patients during the 1st period, and in 56% during the 2nd period. Ambulance personnel treated 1,094 stroke patients during the study. All procedures were performed and documented correctly in 10% of

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... . The most frequent deviation from guidelines was under-reported values of blood glucose. In 44.7% of patients, an ECG was performed, which is not required by guidelines. Conclusions: Acute stroke management improved significantly. Adherence to recently developed stroke guidelines in the ambulance services must be improved.