[Propofol Infusion Syndrome Treated Successfully by Early Diagnosis].

Propofol infusion syndrome (PRIS) is one of the severe complications which occur during continuous venous infusion of propofol, and has a high mortality rate. It is featured by high fever, oliguria, myogloblin urine, acute renal failure, hepatomegaly, fatty liver, and so on. We have experienced a case of PRIS who was saved by prompt changing of sedatives from propofol to midazolam and dexmedetomidine. The patient was an 82-year-old man, who underwent off-pump coronary bypass grafting due to effort angina pectoris. After the operation, he suffered from continuous high fever over 38 ℃, acute renal impairment, and high level of creatine kinase (CK) without CK-MB increment, suggesting PRIS. We promptly changed sedatives from propofol to midazolam and dexmedetomidine, then the patient recuperated from these abnormalities. It is strongly suggested that meticulous observation is necessary during propofol infusion.