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Comparison of the Effects of Conventional Positioning and Ultrasound-Guided Positioning in Non-invasive Phrenic Nerve Electrical Stimulation

Comparison of the Effects of Conventional Positioning and Ultrasound-Guided Positioning in Non-invasive Phrenic Nerve Electrical Stimulation

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600122761
Enrollment
Unknown
Registered
2026-04-17
Start date
2026-04-20
Completion date
Unknown
Last updated
2026-04-27

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

Conditions

ventilator-induced diaphragmatic dysfunction

Interventions

Group A:Standard positioning followed by ultrasound-guided positioning
Group B:Ultrasound-guided positioning followed by standard positioning.

Sponsors

Sanbo Brain Hospital, Capital Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 18 years old; 2. Receiving mechanical ventilation (MV); 3. BMI < 30 kg/m²; 4. Signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. Patients with a risk of diaphragmatic nerve injury or dysfunction (such as those with a history of neck surgery, neuromuscular diseases, severe COPD, etc.) ; 2. Patients with implanted cardiac pacemakers, severe arrhythmias, or cardiac dysfunction (NYHA classification III-IV) ; 3. BMI > 30 kg/m² ; 4. Pregnant or lactating women ; 5. Patients with multiple organ failure ; 6. Pneumothorax ; 7. Active tuberculosis patients.

Design outcomes

Primary

MeasureTime frame
Diaphragmatic excursion;—

Secondary

MeasureTime frame
Straight-line distance;Vertical displacement;Horizontal displacement;—

Countries

China

Contacts

Public ContactShi Zhonghua

Sanbo Brain Hospital, Capital Medical University

z.shi@mail.ccmu.edu.cn+86 10 8513 0781

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 1, 2026