Spontaneous Breathing Trial With T-piece or Inspiratory Pressure Augmentation

  • STATUS
    Recruiting
  • End date
    Jan 31, 2022
  • participants needed
    2143
  • sponsor
    National Taiwan University Hospital
Updated on 3 March 2021

Summary

Weaning is an important process to gradually separate mechanically ventilated patients from ventilators. A good weaning strategy aims to early identify mechanically ventilated patients who are ready for extubation but not to prematurely extubate them. Spontaneous breathing trial (SBT) is a test to assess the patient's ability to breathe spontaneously when extubated. Several methods have been used to conduct an SBT, including T-piece breathing, low-level pressure support ventilation (PSV) of 5-7 cm H2O, continuous positive airway pressure and automatic tube compensation (ATC).

The investigators hypothesized that an SBT with inspiratory pressure augmentation increases initial SBT success, reduces the length of invasive mechanical ventilation (iMV) support and does not increase reintubation risk as compared with T-piece, which result in a higher proportion of patients successfully liberated from iMV in the inspiratory pressure augmentation group. However, inspiratory pressure augmentation significantly reduces work of breathing on an SBT as compared with T-piece. Patients extubated following an SBT with inspiratory pressure augmentation may experience increased respiratory effort after extubation and this may increase the use of noninvasive ventilation after extubation. An SBT with inspiratory pressure augmentation increases iMV free days but not MV free days as compared with T-piece. Longer iMV free days may be associated with a lower mortality due to fewer iMV related complication.

This study is a pragmatic, cluster-randomized, multiple crossover, multicenter trial to compare SBTs with T-piece versus inspiratory pressure augmentation in weaning outcomes. Mechanically ventilated patients who meet the criteria for readiness to SBT will be included. The patients will use either T-piece or inspiratory pressure augmentation as SBT for weaning according to an ICU-based cluster randomization and crossover sequence.

Details
Condition Ventilator Weaning
Treatment Spontaneous breathing trial (SBT) crossover sequence 1, Spontaneous breathing trial (SBT) crossover sequence 2
Clinical Study IdentifierNCT04222205
SponsorNational Taiwan University Hospital
Last Modified on3 March 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Is your age greater than or equal to 20 yrs?
Gender: Male or Female
Do you have Ventilator Weaning?
Do you have any of these conditions: Do you have Ventilator Weaning??
Do you have any of these conditions: Do you have Ventilator Weaning??
Admitted to the adult intensive care unit (ICU)
Receiving invasive mechanical ventilation via an endotracheal tube
Ready to start an SBT The criteria of readiness to an SBT include FiO2 0.4, PEEP 8 cmH2O, minute ventilation 0.15 L/min/predicted body weight, inspiratory pressure or driving pressure 14 cm H2O, stable cardiovascular status and no worsening of non-pulmonary organ function

Exclusion Criteria

Age < 20 years
Receiving mechanical ventilation via tracheostomy
Mechanical ventilation < 12 hours
Invasive ventilation started before the index hospitalization
On do-not-intubate order
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