This study evaluates the efficacy of the intra-aortic balloon pump (IABP) as a rescue strategy for patients experiencing complications following cardiac surgery. Data from 10,591 patients between 2012 and 2020 were analyzed, revealing that IABP use is associated with increased early and one-year mortality, especially when deployed for more than four days or after cardiac arrest. The findings suggest alternative mechanical circulatory support methods may be more appropriate for severe cardiogenic shock.