Determination of the Optimal Spontaneous Breathing Trial During Weaning of Mechanical Ventilation

NCT ID: NCT04222569

Last Updated: 2023-08-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

117 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-06-15

Study Completion Date

2023-06-15

Brief Summary

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Assessment and comparison of three spontaneous breathing trials in five specific profiles of intensive care unit and perioperative patients. A physiological cross over study

Detailed Description

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Mechanical ventilation is the most used organ replacement therapy in intensive care unit (ICU). After resolution of acute illness, separating the ventilator from the patient may be specially challenging. Before extubation, it is recommended to perform a spontaneous breathing trial (SBT) to evaluate the ability to sustain breathing with minimal or no support.

The way to carry out this step of the weaning process present important variation across regions of the world. Two techniques are preferentially used : the T-piece trial (oxygen supply without positive pressure) and low pressure support ventilation (PSV) from 6 to 10 cmH2O according to the airway humidification device.

The best strategy for successful weaning remains unknown, especially about specific subgroups of respiratory and neurological diseases.

Our aim is to assess which spontaneous breathing trial would best reproduce post-extubation inspiratory effort. We compare T-piece trial, PSV 7 cmH2O without positive end expiratory pressure (PEEP) and PSV 0 cmH2O without PEEP. Five specific profiles are evaluated : chronic obstructive pulmonary disease (COPD), severe brain injury, blunt thoracic trauma, post abdominal surgery and miscellaneous.

The hypothesis is that T-piece trial and PSV 0 CPAP 0 trial are the best for mimic inspiratory effort after extubation. However, we could highlight various results according to different subgroups of ICU patients. The final aim is to determine a personalized wean trial for each.

Conditions

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Intensive Care Unit Invasive Mechanical Ventilation Ready to Wean From Ventilation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Each patient, serving as their own control, realize three SBT for 15 minutes: T-piece, PSV 7 cmH2O without PEEP and PSV 0 cmH2O without PEEP. The order is randomized. The randomization is stratified on pathology. For avoid a carry-over effect, a wash-out period of baseline ventilation for 10 minutes will be respected between trials. The humidification device is a heated humidifier, linked to the ventilator. Data are recorded before (guarantee of real return to baseline) and after each SBT.

Then, extubation is decided by clinician in charge, in accordance with guidelines. A 30 min of resting period is respected before. Data are recorded before and 20 minutes after extubation.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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T-piece and PSV 7 PEEP 0 and PSV 0 PEEP 0

First T-piece trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

T-piece and PSV 0 PEEP 0 and PSV 7 PEEP 0

First T-piece trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

PSV 0 PEEP 0 and PSV 7 PEEP 0 and T-piece

First PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

PSV 0 PEEP 0 and T-piece and PSV 7 PEEP 0

First PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min. After 10 min of rest, PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

PSV 7 PEEP 0 and T-piece and PSV 0 PEEP 0

First PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

PSV 7 PEEP 0 and PSV 0 PEEP 0 and T-piece

First PSV 7 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, PSV 0 cmH2O and PEEP 0 cmH2O trial for 15 min. After 10 min of rest, T-piece trial for 15 min.

Group Type EXPERIMENTAL

T-piece

Intervention Type PROCEDURE

Spontaneous breath trial with a T-piece

PSV 7 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

PSV 0 and PEEP 0

Intervention Type PROCEDURE

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

Interventions

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T-piece

Spontaneous breath trial with a T-piece

Intervention Type PROCEDURE

PSV 7 and PEEP 0

Spontaneous breath trial with a pressure support ventilation of 7 cmH2O and no positive end expiratory pressure

Intervention Type PROCEDURE

PSV 0 and PEEP 0

Spontaneous breath trial without pressure support ventilation and positive end expiratory pressure, with a patient intubated and connected to the ventilator

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* ICU patient with invasive mechanical ventilation for at least 24 hours
* Physician decision to extubate and all criteria for ventilatory weaning must be present
* Resolution of disease acute phase for which the patient was intubated
* Conscious patient (Richmond Agitation-Sedation Scale (RASS) \> 0), no sedation
* Good coughing effort, good swallowing, positive leak test (\> 12% of tidal volume (VT))
* No important secretions
* No respiratory acidosis, adequate oxygenation (PaO2 / FiO2 \> 150 mmHg and CPAP ≤ 8)
* Adequate pulmonary function (respiratory rate (RR) ≤ 35, negative inspiratory force (NIF) \> 20 cmH2O, RR/VT \< 105)
* Stable cardiovascular status (heart rate (HR) \< 140 bpm, systolic blood pressure \> 90 mmHg, no or minimal vasopressors)
* If severe brain injury, the VISAGE score must be ≥ 3 (visual pursuit, good swallowing, GCS \> 10)

Exclusion Criteria

* Obese patients with BMI ≥ 35 kg/m2
* Contraindication for nasogastric tube or esophageal manometric balloon placement
* Refusal of study participation or to pursue the study by the patient, no consent
* Pregnancy or breastfeeding
* Absence of coverage by the French statutory healthcare insurance system
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Montpellier

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Samir Jaber, MD, PHD

Role: STUDY_DIRECTOR

Montpellier University Hospital

Locations

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Centre Hospitalier Universitaire Saint Eloi

Montpellier, Herault, France

Site Status

Countries

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France

References

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Mahul M, Jung B, Galia F, Molinari N, de Jong A, Coisel Y, Vaschetto R, Matecki S, Chanques G, Brochard L, Jaber S. Spontaneous breathing trial and post-extubation work of breathing in morbidly obese critically ill patients. Crit Care. 2016 Oct 27;20(1):346. doi: 10.1186/s13054-016-1457-4.

Reference Type BACKGROUND
PMID: 27784322 (View on PubMed)

Capdevila M, De Jong A, Aarab Y, Vonarb A, Carr J, Molinari N, Capdevila X, Brochard L, Jaber S. Which spontaneous breathing trial to predict effort to breathe after extubation according to five critical illnesses: the cross-over GLOBAL WEAN study protocol. BMJ Open. 2023 Jul 12;13(7):e070931. doi: 10.1136/bmjopen-2022-070931.

Reference Type DERIVED
PMID: 37438068 (View on PubMed)

Other Identifiers

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RECHMPL19_0197

Identifier Type: -

Identifier Source: org_study_id

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