“…Nevertheless recent reports indicate that fatal complications, both immediate and late, may occur. Immediate complications include carotid hypoperfusion (Parker, 1969;Magilligan et al, 1972) or hyperperfusion (Krous, Mansfield, and Sauvage, 1973), acute aortic dissection (Salama and Blesovsky, 1970;Reinke et al, 1974;Williams, Suwansirikul, and Engelman, 1974), and entrance of the cannula into one of the arch branches or the left ventricle (Magner, 1971).…”