“…Steenberg et al in 1958 reported the first successful embolectomy in America. In the last few years many more successful embolectomies have been performed at many centres (Beall & Cooley, 1965;Makey & Bliss, 1966;Cross & Mowlem, 1967;Barraclough & Braimbridge, 1967;Paneth, 1967;Sautter, 1967). Among the many factors in the recent increase in success, the most important has been the use of cardiopulmonary bypass, first employed successfully in this context by Sharp in 1962.…”