Cardiopulmonary bypass (CPB) stands as a crucial medical intervention utilized during cardiac surgeries, temporarily assuming the vital functions of the heart and lungs. This intricate procedure involves rerouting the patient's blood away from the heart and lungs, employing a heart-lung machine to take charge of oxygenation and blood circulation throughout the body. Acting as a surrogate for natural physiological processes, the machine effectively removes carbon dioxide and adds oxygen to the blood. By inducing a state of motionlessness and bloodlessness in the heart, CPB enables surgeons to conduct intricate cardiac procedures that would otherwise be challenging or impractical. While integral to various cardiac interventions, the application of cardiopulmonary bypass comes with inherent risks. Ongoing research is dedicated to refining CPB techniques to minimize potential complications, ensuring improved patient outcomes. The evolution of this technology has significantly propelled the field of cardiac surgery, revolutionizing the landscape of life-saving interventions and enhancing the overall success of complex cardiac procedures.