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Efficacy of CHFO in Patients with Postoperative Hypoxemia after Abdominal Surgery estimated by Electrical Impedance Tomography and Lung Ultrasound

Efficacy of CHFO in Patients with Postoperative Hypoxemia after Abdominal Surgery estimated by Electrical Impedance Tomography and Lung Ultrasound

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500098904
Enrollment
Unknown
Registered
2025-03-14
Start date
2025-03-20
Completion date
Unknown
Last updated
2025-03-17

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

Conditions

Postoperative Hypoxemia

Interventions

Intervention group:Continuous High-Frequency Oscillation

Sponsors

Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. age >= 18 years; 2. Patients with postoperative hypoxemia admitted to the ICU (defined as SpO2 < 90% for more than 10 seconds, or PaO2/FiO2 < 300 mmHg);

Exclusion criteria

Exclusion criteria: 1. untreated pneumothorax or massive pleural effusion; 2. Severe hemodynamic instability; 3. pregnancy; 4. Recent chest trauma or burns; 5. Contraindications for EIT (e.g., chest drainage tubes, cardiac pacemakers or implantable defibrillators, neck implants) or ultrasound; 6. For patients with relative contraindications to CHFO (e.g., history of pneumothorax, recent pneumonectomy, pulmonary hemorrhage, myocardial infarction, vomiting), inclusion will be discussed and determined by the clinicians;

Design outcomes

Primary

MeasureTime frame
End-expiratory lung impedance (EELI), tidal impedance variation (TIV);Modified Lung UltrasoundScore(mLUS);

Secondary

MeasureTime frame
Coefficient of Variation (CV);Global Inhomogeneity(GI);P/F, pH, PaCO2;

Countries

China

Contacts

Public ContactHongping Qu

Ruijin Hospital, Shanghai Jiao Tong University School of Medicine

hongpingqu0412@hotmail.com+86 21 64370045

Outcome results

None listed

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