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Application of Active Subglottic Airway Humidification in Intermittent Subglottic Secretion Drainage in Patients with Tracheostomy: A randomized controlled trial

Study on the appropriate initial pressure and attraction effect of sputum with different viscosity

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500106495
Enrollment
Unknown
Registered
2025-07-24
Start date
2023-07-24
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

respiratory disease

Interventions

Low suction pressure group:The patients in the control group were treated with hemostatic forceps to clamp the negative pressure drainage catheter prior to flushing. They then disconnected the cathete
Medium suction pressure group:Initially, the patients in this group had the active heating and humidifying device of the ventilator activated, with the inlet of the bridge tube connected to the Y-shap

Sponsors

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

Eligibility

Sex/Gender
All
Age
14 Years to 89 Years

Inclusion criteria

Inclusion criteria: The diagnosis of common diseases in all patients included multiple trauma, septic shock, various post-operative, various types of poisoning, multiple organ failure, severe obstetric, cardiopulmonary resuscitation, etc. All family members were informed of the purpose and process of this study and obtained informed consent. All met the following inclusion criteria : 1. patients who were mechanically ventilated in the ICU of our hospital; 2. mechanical ventilation for more than 48 hours; 3. age >= 18 years; 4. ventilator mode set to pressure-controlled ventilation (PCV); 5. Richmond Agitation Sedation Scale score ranging from 0 to -2.

Exclusion criteria

Exclusion criteria: 1. airway mucosal injury or bleeding, unobstructed suction catheter, severe hypoxemia and/or carbon dioxide retention prior to IASS; 2. sudden changes in condition during drainage (procedure termination under physician supervision); 3. refusal to participate in this study.

Design outcomes

Primary

MeasureTime frame
Positive rate of the occult blood test;Blockage rate of the drainage catheter;The viscosity of subglottic secretions;Incidence of ventilator-associated pneumonia;

Secondary

MeasureTime frame
Vital signs;Exhaled tidal volume;Cuff pressure;Suction pressure;Sputum suctioning effect score;

Countries

China

Contacts

Public ContactWeiquan Liu

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

1220396357@qq.com+86 27 8366 3803

Outcome results

None listed

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