Two cases of intraaortic balloon entrapment were presented. In patient
1, urokinase was injected into the gas driver lumen of the intraaorti
c balloon catheter, then it could be removed. In patient 2, the intraa
ortic balloon was removed retrogradely through the left axillary arter
y. If the entrapped intraaortic balloon is encountered, it is effectiv
e to try a clot-lysis method initially, followed by a surgical approac
h through a left axillary artery.