In this article, the author describes three patients who had undergone previous mitral and aortic valve replacement, experiencing cardiogenic shock due to valve dysfunction. The initial evaluation demonstrated that the patients were deemed inoperable based on risk score calculations. AV ECMO was employed to recover them from cardiogenic shock and severe acidosis. Successful redo surgical valve replacement was performed in all cases, and the results are presented, followed by a discussion and literature review. The paper concludes that AV ECMO might be beneficial for patients with these severe conditions, providing them with a chance for survival after undergoing valve replacement redo surgery.