the art in reviews of the the 7th International Conference on Cerebral Vaso­ major aspects of cerebral vasospasm by invited au­ spasm. The editors extend their gratitude to the many thors, and selected articles of the conference presenting participants of this most recent vasospasm sympo­ important results of the most recent research in basic sium, who were also the contributors to this book. sciences and clinical management of cerebral vaso­ Special thanks belong also to Mrs. Ilona Anders for spasm. editing the manuscripts. Prof. Helge Nornes from Oslo, Norway, was the This book is dedicated to our families whose patient honored guest of the conference. Prof. Nornes has support is so important for our professional and sci­ made major contributions to the evaluation and clini­ entific activities. cal management of cerebral vasospasm. A tribute to R. W Seiler and H. -J.