In this study, patient groups in which normothermia is preserved by using multiple active warming methods in the intraoperative period in AIS surgery, followed by a single compressed air blowing system and allowed mild to moderate hypothermia were compared.

Inclusion Criteria:

• Patients between the ages of 12-18 who were evaluated as ASI by axial skeletal deformity, who would undergo elective deformity correction surgery, who did not have scoliosis due to a secondary cause, and whose data were allowed to be used by themselves and parents

Exclusion Criteria:

• Patients with body weight <35kg, morbid obesity (BMI> 40kg / m2), known allergy, known bleeding-coagulation disease, use of drugs that affect blood clotting parameters in the last week, presence of hepatic, renal, hematological, rheumatological disease, the patient's own or family with psychiatric disorders who could not cooperate