The success rate of surgical treatment for blowout type free wall rupture of the left ventricle following myocardial infarction has been reported as 4 to 24%. A 64-year-old woman was admitted to our hospital for inferior acute myocardial infarction with cardiogenic shock. In the catheter laboratory, her hemodynamics disclosed electro-mechanical dissociation, and we had to perform an emergent operation there. In order to preserve left ventricular volume and reduce the risk of bleeding, we adopted a modified method using both patch and felt strip sandwich methods which obtained favorable result. The patient was sent to a rehabilitation hospital on the 43rd post operative day because of a mild cerebral complication and she is now doing well with only a slight speaking disturbance at a follow-up period of 10 months.