Atelectasis during operation
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) For elective laparoscopic hysterectomy (2) ASA grade I-III patients (3) Body mass index,(BMI) <30kg/m2 (4) 18-65 years old
Exclusion criteria
Exclusion criteria: (1) patients refused, (2) body mass index > 35 kg/m 2 (3)ASA > II (4) emergency operation (5) abnormal pulmonary function (late stage of ARDS or"Fibrosis" stage, unilateral pleuropneumonia, ARDS with obvious changes in imaging, Ards with high baseline PEEP level, patients with poor chest wall elasticity, and patients with mixed COPD) . (6) severe cardiovascular diseases (such as myocardial infarction, heart failure, malignant arrhythmia, etc.) , renal diseases, liver diseases, diseases (serum total bilirubin =2 mg/dl) (7) severe hypotension and head trauma. (8) patients with moderate or above anemia. (9) patients were involved in other studies within 7 days after surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Preoperative T 0 LUS score;LUS score of T 1 after operation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Peak airway pressure;Airway Plateau pressure;Airway pressure;Blood gas analysis results;Head low, feet high and inclined; | — |
Countries
China
Contacts
Shengjing Hospital of China Medical University