This book contains the manuscripts of the majority of the papers given during the symposium 'Improvement of Myocardial Perfusion' which was held from Sep- tember 27-29,1984 in Mainz/Germany. It has been the purpose of this meeting to focus the interest of scientifically and clinically interested cardiologists on the new developments in this field. We therefore chose the subtitle 'Medical-Mechanical -Surgical Approach'. The medical improvements in myocardial perfusion have been brought about by the application of streptokinase, urokinase and tissue-type plasminogen ac- tivator in the first...