Perfuusioylilämpö

Perfuusioylilämpö refers to a situation in medical procedures, particularly cardiopulmonary bypass, where the patient's body temperature is intentionally raised above normal physiological levels. This controlled hyperthermia is employed to reduce the body's metabolic rate and oxygen demand during complex surgeries, such as open-heart procedures, where the heart and lungs are temporarily stopped. By lowering cellular activity, perfuusioylilämpö aims to protect vital organs, especially the brain and heart, from potential damage caused by ischemia (lack of blood flow) during the surgical period.

The application of perfuusioylilämpö typically involves warming the blood circulating through the bypass machine. The target temperature can vary depending on the specific surgical protocol and the patient's condition, but it often ranges from 37°C to 40°C. While beneficial for organ protection, prolonged or excessive hyperthermia can also carry risks, including impaired immune function, increased risk of bleeding, and potential neurological complications. Therefore, careful monitoring of the patient's temperature and physiological parameters is crucial throughout the procedure. Once the surgery is complete, the patient's temperature is gradually returned to normal levels. The use and specific parameters of perfuusioylilämpö are determined by the surgical team based on established medical guidelines and the individual needs of the patient.