Effect of Perioperative Hypothermia on Postoperative Pain

The Effect of Perioperative Hypothermia on Postoperative Pain and Pain Sensitization With Laparoscopic Surgery: a Prospective Observational Study

This study aims to observe the impact of perioperative body temperature on postoperative pain and pain sensitization for the patients with laparoscopic surgery. Based on this study the investigators aimed to explore the effect of perioperative hypothermia on postoperative pain.

This study aims to included surgery patients to observe the impact of perioperative body temperature on postoperative pain and pain sensitization for the patients with laparoscopic surgery. Body temperature and postoperative pain will be continuously assessed, and then association analysis will be performed.

Inclusion Criteria:

• Age 18-70 years old
• American society of anesthesiologists I-III
• Patients who plan to laparoscopic surgery under general anesthesia
• Volunteer to participate in this study and sign informed consent.

Exclusion Criteria:

• the patient with chronic pain
• Patients with fever
• The patient is infected
• Severe vision, hearing, language impairment or other reasons unable to communicate with visitors
• Patients with known mental illness or lack of communication or cognitive impairment before operation;
• Long-term use of sedatives, antidepressants or alcoholism
• Artificial cooling and low temperature protection were taken during the operation