Using lung ultrasound to compare different breathing-support settings during surgery to see which one best prevents lung collapse afterward

Effect of different on postoperative respiratory outcomes and lung aeration, in patients undergoing thoracoscopic sympathectomy: a randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN31424042

Enrollment

104

Registered

2026-02-06

Start date

2022-01-05

Completion date

Unknown

Last updated

2026-02-16

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

Conditions

Postoperative atelectasis and lung aeration impairment under general anesthesia in patients undergoing elective thoracoscopic bilateral sympathectomy. Surgery

Interventions

This was a prospective, randomized, assessor-blinded, 2×2 factorial trial. Adult patients undergoing elective thoracoscopic bilateral sympathectomy were randomized into four parallel groups according

the same maneuver was repeated after the left-sided procedure. Subsequently, the assigned PEEP (0 or 8 cmH2O) was applied and ventilation was switched to SIMV until extubation. Lung ultrasound examina

Eligibility

Sex/Gender

All

Age

18 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Adults aged =18 years 2. ASA physical status I–II 3. BMI <28 kg/m² 4. Scheduled for elective thoracoscopic bilateral sympathectomy 5. No history of cardiothoracic surgery or pulmonary disease 6. Preoperative chest CT without significant abnormalities 7. Written informed consent provided

Exclusion criteria

Exclusion criteria: 1. Preoperative Visual Analogue Scale (VAS) score > 2 2. Failure to complete the lung ultrasound (LUS) examination / incomplete LUS dataset 3. Conversion to an alternative surgical approach 4. Withdrawal of consent (prior to randomisation)

Countries

China

Contacts

Public ContactXianzhong Lin

18350444834@163.com+86-18350444834

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 19, 2026