Diseases or Injuries Requiring Endoscopic Sinus Surgery
Conditions
Interventions
Volume controlled ventilation group:Set the intraoperative ventilation mode to Volume-Controlled Ventilation (VCV). Tidal volume (VT) is set according to ideal body weight (formula: 50 [45.5 for femal
Pressure controlled ventilation group:Set the intraoperative ventilation mode to Pressure-Controlled Ventilation (PCV). Initially set the peak inspiratory pressure (PIP) at 15 cmH?O, then adjust PIP t
Sponsors
The Second Affiliated Hospital of Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. Age between 18 and 65 years 2. ASA physical status classification I-II (American Society of Anesthesiologists physical status classification) 3. Planned for elective endoscopic sinus surgery with an anticipated duration of more than 1 hour
Exclusion criteria
Exclusion criteria: 1. Chronic respiratory diseases (e.g., COPD, severe asthma) 2. Abnormal liver or kidney function, cardiovascular dysfunction, endocrine dysfunction, or any other organ dysfunction (ASA class III-IV) 3. Coagulation disorders or use of antiplatelet agents or anticoagulant therapy 4. Pregnancy 5. Other reasons deemed unsuitable for participation in this trial by the investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Intraoperative blood loss;Intraoperative blood loss rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Surgical field quality(assessed by the Boezaart grading system);non-invasive blood pressure;Heart rate;Pulse oxygen saturation;Tidal volume; Peak airway pressure;Plateau airway pressure;Respiratory rate;End expiratory carbon dioxide partial pressure; | — |
Countries
China
Contacts
Public ContactZheng Shengxing
The Second Affiliated Hospital of Wenzhou Medical University
Outcome results
None listed