Clindamycin is an antibiotic medication used to treat various bacterial infections. In this trial, it is being studied as a potential alternative to vancomycin during heart surgery. The medication works by stopping bacteria from growing and multiplying. It is particularly effective against many types of bacteria that can cause infections during cardiac procedures.

Vancomycin is a powerful antibiotic medication commonly used during heart surgeries to prevent infections. It is considered a standard treatment for preventing bacterial infections, particularly in patients undergoing cardiac surgery with extracorporeal circulation. This medication fights against serious bacterial infections and is especially effective against certain types of resistant bacteria.

Mediastinitis – A serious infection that occurs in the mediastinum, which is the space between the lungs containing the heart, large blood vessels, windpipe, esophagus, and other important structures. It can develop as a complication after cardiac surgery, particularly when using extracorporeal circulation. The condition involves inflammation and infection of the connective tissues that surround these vital organs. The infection can spread through the deep tissue spaces of the mediastinum, causing swelling and the formation of infected fluid collections.

Cardiac Surgery with Extracorporeal Circulation – A surgical procedure where the heart’s function is temporarily taken over by a heart-lung machine (extracorporeal circulation). During this procedure, the blood is diverted outside the body through special tubes, where it is oxygenated by the machine before being pumped back into the body. This allows surgeons to operate on a still, bloodless heart while maintaining circulation to the rest of the body. The process involves cooling the body temperature and using special solutions to protect the heart during surgery.