The incidence of redo myocardial revascularization is increasing lately. These procedures are accompanied by the higher operative risk, and the use of internal thoracic artery graft may have additional negative impact on early-rization. Mortality and morbidity in this group did not differ significantly compared to a group where only venous grafts were used. Independent predictors of the unfavorable outcome (for both groups) were the presence of the chronic pulmonary disease, age over 65 and NYHA functional class IV. In the group with internal thoracic graft it was the age over 65, while in the group with only vein grafts it was chronic pulmonary disease. We have discussed potential problems during the redo procedure in patients in whom internal thoracic graft was used during the first procedure.