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Application value of the "optimal V/Q matching strategy" in ARDS patients with mechanical ventilation based on bedside hypertonic saline lung perfusion electrical impedance tomography technology

Application value of the "optimal V/Q matching strategy" in ARDS patients with mechanical ventilation based on bedside hypertonic saline lung perfusion electrical impedance tomography technology

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500106426
Enrollment
Unknown
Registered
2025-07-23
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-08-18

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

Control group:PEEP will be titrated using the Pressure-Volume curve method
Experiment Group A:PEEP will be titrated using the OD/CL method
Experiment Group B:Titrate PEEP1 according to the OD/CL method (denoted as PEEP1 for ease of distinction), and then optimize the target PEEP2 based on the optimal V/Q matching strategy

Sponsors

Chongqing hospital of traditional Chinese medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
19 Years to 79 Years

Inclusion criteria

Inclusion criteria: 1.Conform to the 2023 A New Global Definition of Acute Respiratory Distress Syndrome. Am J Respir Crit Care Med. The diagnostic criteria for ARDS in 2024 (including (1) risk factors and sources of pulmonary edema; (2)Timing of onset; (3)Chest imaging and other three aspects 2.Tracheal intubation with mechanical ventilation and meeting the diagnostic criteria for moderate or severe ARDS; 3.Adequate analgesia, sedation or muscle relaxants are required for treatment; 4.Central venous catheters (internal jugular vein, subclavian vein) need to be inserted due to the condition. (5) Be over 18 years old and under 80 years old; (6) The patient or their family members are willing to sign the informed consent form and participate in the researcher.

Exclusion criteria

Exclusion criteria: 1.Severe obesity with a BMI>40Kg/m^2; 2.There are contraindications for the use of EIT (such as extensive dressing coverage of the chest wall after thoracic surgery, pacemaker implantation, automatic defibrillator implantation in the body, thoracic deformity, extensive damage to the chest wall skin, and extreme emaciation); 3.Terminal stage of tumors and other diseases; 4. The estimated survival time is less than 48 hours; 5. Pregnant and lactating women; 6. Patients with neuromuscular diseases; 7.Where informed consent is lacking or the patient is uncooperative or uncooperative.

Design outcomes

Primary

MeasureTime frame
pulmonary ventilation distribution;pulmonary blood flow distribution;Ventilation/perfusion matching condition;Airway plateau pressure;Mean airway pressure;Peak airway pressure;Lung compliance;Airway resistance;Positive end-expiratory pressure;oxygen delivery 2;central venous oxygen saturation;Arterial blood lactate;

Secondary

MeasureTime frame
Length of stay in the Intensive Care Unit;Mechanical ventilation time in the Intensive Care Unit;Offline success rate;APACHE II score results;

Countries

China

Contacts

Public ContactXiangwen Weng

Chongqing hospital of traditional Chinese medicine

xiangwen_weng@163.com+86 182 2763 5495

Outcome results

None listed

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