The effect of lung ultrasound-guided lung recruitment and positive airway pressure before extubation on postoperative atelectasis in laparoscopic surgery: a randomized controlled trial

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100044748

Enrollment

Unknown

Registered

2021-03-26

Start date

2021-04-05

Completion date

Unknown

Last updated

2021-10-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

postoperative atelectasis

Interventions

experimental group:lung ultrasound-guided lung recruitment and positive airway pressure

control group:peep 5 cmH2O

Eligibility

Sex/Gender

All

Age

18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Patients who need endotracheal intubation general anesthesia for laparoscopic surgery; 2.The operation time is 2-6 hours; 3.ASA I-III grade; 4.Preoperative chest radiographs and lung ultrasound showed no abnormalities; 5.Lung ultrasound score in any quadrant >= 2 points once in PACU; 6.Aged 18-80 years; 7.BMI 18-30 kg/m2.

Exclusion criteria

Exclusion criteria: 1.Patients refused to participate in the trial; 2.Patients who have the history of Serious pulmonary diseases, such as bullae, chronic obstructive pulmonary disease, pleural effusion, asthma, pneumothorax,and who have received chest surgery history, such as lobectomy; 3.Patients' comorbidities include severe cardiovascular diseases and liver and kidney dysfunction; 4.Preoperative patients complicated with severe pulmonary artery hypertension, intracranial hypertension and other contraindications to pulmonary retraction; 5.Preoperative oxygen saturation <= 92%; 6.Severe complications occurred during the operation, such as subcutaneous emphysema, pneumothorax, severe allergy, etc; 7.During the operation, there was massive bleeding, hemodynamic instability, and a large amount of blood transfusion and fluid transfusion; 8.The patient failed to remove the endotracheal intubation for various reasons after surgery, and the patient was turned to ICU with the intubation; 9.Patients transferred to open surgery.

Design outcomes

Primary

Measure	Time frame
Lung ultrasound score;Blood gas analysis;	—

Secondary

Measure	Time frame
Complications within 5 days after surgery (atelectasis, respiratory failure, bronchospasm, hypoxia (SpO2, less than 92%) or pneumothorax, pulmonary infection, Arrhythmia, heart failure);Postoperative catheterization time;Cdyn;time at PACU;Postoperative oxygen intake time;Postoperative fever;Postoperative hospital stay;Hospital costs;Postoperative half sitting and lying time;	—

Countries

China

Contacts

Public ContactLiu Chuiliang

Foshan Chancheng Central Hospital

476140516@qq.com+86 18681418386

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026