In our study are presented some blond count and clotting parameers of IS patients with severe brain injury, in which was used deliberate mild hypothermia 34 °C during 72 hours as a component of intensive care management together with standard treatment protocol according to European Brain Injury Consortium. The laboratory values were obtained from 9 examinations of arterial blond in 8 hours period during hypothermia therapy and during normothermia too. For statistickl analysis was used Wilcoxon test. There were no significant changes in serum levels of haemoglobin, trombocytes, fibrinogen, activated partial tromboplastin and prothrombin time values in the course of mild hypothermia therapy opposite to normothermia values.

        Key words: head injury - mild hypothermia - blond count - coagulation systém