Status:

NOT_YET_RECRUITING

The Impact of Low Versus High Positive End-expiratory Pressure on Diaphragm Function, Ventilation Efficiency, and Lung Mechanics

Lead Sponsor:

Vastra Gotaland Region

Collaborating Sponsors:

Sahlgrenska University Hospital

Göteborg University

Conditions:

Respiratory Failure

ARDS (Acute Respiratory Distress Syndrome)

Eligibility:

All Genders

18+ years

Phase:

NA

Brief Summary

The goal of this interventional study is to evaluate the effect of different positive end-expiratory pressures (PEEP) on lung and diaphragm function in patients mechanically ventilated with pressure s...

Eligibility Criteria

Inclusion

  • Mechanical ventilation with pressure support or mechanical ventilation with possibility to transition to pressure support
  • Oxygen requirement ≤ 50%
  • Pressure support ≤ 12 cmH2O
  • PEEP ≤ 12 cmH2O
  • Age ≥ 18 years
  • Adequate intravascular volume status

Exclusion

  • Circulatory instability
  • Brain death diagnosis/brain death evaluation
  • Norepinephrine dose \> 0.4 µg/kg/min
  • Muscle relaxation administered within 2 hours
  • Pregnancy
  • Contraindication to esophageal catheterization (e.g., esophageal varices)
  • Conditions with increased risk of pneumothorax (such as severe COPD (Chronic Obstructive Pulmonary Disease) or extensive emphysema)
  • Untreated pneumothorax
  • Symptomatic airway obstruction
  • Discontinuation criteria during ongoing study intervention:
  • Heart rate \> 120 beats/min
  • Systolic blood pressure \> 180 mmHg
  • Inspired oxygen fraction \> 70%
  • Respiratory rate \> 35/min
  • RASS (Richmond Agitation Sedation Scale) ≥ 2
  • Doubling of norepinephrine dose or increase of norepinephrine dose to \> 0.5 µg/kg/min to maintain mean arterial pressure
  • Bradycardia \< 45 beats/min

Key Trial Info

Start Date :

October 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 31 2027

Estimated Enrollment :

25 Patients enrolled

Trial Details

Trial ID

NCT07188038

Start Date

October 1 2025

End Date

December 31 2027

Last Update

September 23 2025

Active Locations (2)

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Page 1 of 1 (2 locations)

1

Central intensivvårdsavdelning, Sahlgrenska University Hospital

Gothenburg, Västra Götaland County, Sweden, 413 45

2

Thorax intensivvårdsavdelning, Område 6, Sahlgrenska University Hospital, Västra Götalandsregionen

Gothenburg, Västra Götaland County, Sweden, 413 45