Organ preservation techniques are methods used to keep organs viable for transplantation or research. These techniques aim to slow down the decay process after an organ is removed from a donor. Common methods include cold storage, where organs are kept at low temperatures, and perfusion, which involves pumping a preservation solution through the organ to maintain its function and viability. Another important aspect of organ preservation is the use of hypothermic preservation and machine perfusion. Hypothermic preservation reduces metabolic activity, while machine perfusion continuously supplies nutrients and oxygen. These advancements help improve the success rates of organ transplants, ultimately saving more lives.