[Chronology of diagnostic and therapeutic activities in the 3 weeks following rupture of an intracranial saccular aneurysm (series of 316 cases)].

The authors advocate to operate grades I, II and III patients on the 6th or 7th day following the onset of SAH, that is to say between the "oedema" period and the rebleeding period. They study all investigations and therapy which are necessary previously to the operation and advocate to perform a CT scan as the first investigation as well as to control the intraventricular pressure. Their opinion is based on the study of 316 cases admitted over a period of 5 years 218 have been operated upon by a team of 7 neurosurgeons with an overall mortality of 18.3 p. 100. The mortality in grade I and II patients has been 13.3 p. 100. This percentage includes all fatalities occuring in the six months following surgery. The senior author assumes that a good audio-visual teaching of the trainees can improve the results.