orthopedic trauma
Conditions
Interventions
Group H(fresh gas flow rate =2L/min):fresh gas flow rate =2L/min
Group L(fresh gas flow rate 0.6-1 L/min):fresh gas flow rate 0.6-1 L/min
Sponsors
Qilu Hospital of Shandong University
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. Age: 18 = age = 70 years; 2. Patients scheduled for orthopedic trauma surgery under general anesthesia with an expected duration of 2–6 hours; 3. American Society of Anesthesiologists (ASA) physical status Class I–III; 4. Voluntary participation in the study with full understanding and signed written informed consent.
Exclusion criteria
Exclusion criteria: 1. Patients with a BMI > 30 kg/m²; 2. Severe cardiovascular or respiratory diseases, or renal insufficiency; 3. Preoperative fever or active infection; 4. Hyperthyroidism or hypothyroidism; 5. Use of medications that may affect thermoregulation; 6. Nasopharyngeal diseases, recent nasopharyngeal surgery, epistaxis, skull base fracture, or severe coagulation dysfunction; 7. Familial dysautonomia; 8. Patients expected to require massive intraoperative blood transfusion; 9. Body temperature < 36 °C upon admission to the operating room.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The incidence of perioperative hypothermia in patients under two types of fresh gas flow management during general anesthesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Incidence of postoperative delirium;Quality of postoperative recovery(QoR-15);Postoperative(24h,48h) pain scores and analgesic consumption;30-day readmission rate;Incidence of postoperative hypothermia(PACU,postoperative ward);Duration of PACU stay, and the incidence of shivering and agitation during emergence;Incidence of postoperative(24h,48h) nausea and vomiting (PONV);Absolute value of intraoperative temperature change;Length of hospital stay;incidence of adverse events;Incidence of surgical site infection during hospitalization; | — |
Countries
China
Contacts
Public ContactShaozhong Yang
Qilu Hospital of Shandong University
Outcome results
None listed