Anesthetize you, open your chest, put you on an artificial heart and lung machine, drop your body temperature to about 18 centigrade, stop your heart, cut the aorta out, replace it with a plastic valve and a plastic aorta.
te anestesian, te abren el pecho, te pasan a una máquina de  corazón y pulmón artificial, bajan tu temperatura corporal a unos 18 grados C, detienen tu corazón, remueven la aorta, la reemplazan con una válvula y  una aorta de plástico,