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Effect of APRV combined with prone ventilation on respiratory physiological mechanisms in patients with moderate-to-severe ARDS: a prospective observational study

Effect of APRV combined with prone ventilation on respiratory physiological mechanisms in patients with moderate-to-severe ARDS: a prospective observational study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500112526
Enrollment
Unknown
Registered
2025-11-16
Start date
2025-06-05
Completion date
Unknown
Last updated
2025-11-24

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

Conditions

Acute respiratory distress syndrome (ARDS)

Interventions

APRV/LTV observation group:None

Sponsors

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Meets the diagnostic criteria of the new global definition of ARDS in the 2023 edition; 2.Age: 18-80 years; 3.PaO2/FiO2 =5cmH2O); 4.Within 24 hours of invasive mechanical ventilation; 5.The patient or the patient's family is asked to agree to participate in the trial and to sign an informed consent form;

Exclusion criteria

Exclusion criteria: 1.Age 80 years; 2.Haemodynamic instability that still requires continuous fluid resuscitation; 3.Increased intracranial pressure. 4.Cervical and spinal injuries requiring immobilisation. 5.Postoperative orthopaedic postural restriction. 6.Recent abdominal surgery requiring restriction of position or severe burns to the ventral region; 7.Maternity. 8.Postoperative facial trauma. 9.There are contraindications related to the application of EIT (large chest skin injuries, infections, etc.), pneumothorax, mediastinal emphysema, large pleural effusions; 10.Patients who are to be or have been treated with ECMO; 11.Inability to tolerate prone position; 12.Patients who are participating or have participated in other clinical studies;

Design outcomes

Primary

MeasureTime frame
Oxygenation Index;Center of Ventilation(COV);

Secondary

MeasureTime frame
Number of times in prone position;Shunt;Plateau Pressure (Pplat);Dosage of vasopressor drugs;Static Compliance(Cstat);Intrinsic PEEP(PEEPi);Heart Rate;Deadspace;V/Q Matching;Perfusion distribution percentage;Total PEEP(PEEPtot);Incidence of adverse events;Global Inhomogeneity(GI);Driving Pressure(DP);V/Q Mismatching;Central Venous Pressure(CVP);peak airway pressure(Ppeak);Blood Pressure;Ventilation distribution percentage;

Countries

China

Contacts

Public ContactShang You

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

shang_you@126.com+86 15972127819

Outcome results

None listed

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