This study was planned to investigate whether the wetness of surgical drapes (disposable and resusable drapes) used in the intraoperative period causes hypothermia.

After being informed about the study and potential risk all patients giving written informed consent then the study started. Patients who will undergo elective, gastrointestinal and other major abdominal surgery were included in the study. After patients were randomized by the investigator, patients were covered with disposable or reusable surgical drapes in accordance with hospital procedure. The body temperatures of the patients were followed for 2-6 hours as tympanic and esophageal. In addition, pre- and postoperative surgical drapes, sponges, compresses were measured with precision scales.

Inclusion Criteria:

• ASA 1-2-3
• Patients with abdominal surgery
• Patients receiving general anesthesia

Exclusion Criteria:

• Unwanted to participate in the study
• Patients over 70 years of age
• Presence of central (high) fever originating from the central nervous system resulting from conditions such as cerebrovascular disease, cerebral trauma, intracranial surgery, epilepsy or acute hydrocephalus
• Abnormalities of thermoregulation such as hypothyroidism, hyperthyroidism, history of malignant hyperthermia, or neuroleptic malignant syndrome
• Presence of infectious fever
• ASA 4 and above
• Emergency surgery
• Patients receiving pre-operative chemotherapy
• Having problems such as tearing and perforation of the covers during the work.
• Patients being hyperthermic in the intraoperative process