[Coagulation physiological controls in subarachnoid hemorrhages and their therapeutic implications].

Every wound healing of a vascular lesion requires optimum values in an intact coagulation system. The high rate of secondary haemorrhages in subarachnoid haemorrhages induced us to carry out checks of the behaviour of various coagulation parameters. Increases in fibrinogen and reduced thromboplastin time values were the most marked changes of the haemostatic potential. Normal thromboplastin time values are reached by a vitamin K1 therapy.