Utility of a Weaning Protocol in ICU

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

COMPLETED

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-05-31

Study Completion Date

2014-05-31

Brief Summary

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The purpose of this study is to evaluate the difference of the duration of weaning process from the ventilator between protocol-driven weaned patients and clinical judgment driven weaned patients.

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Detailed Description

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All patients with prolonged weaning and who required tracheostomy are enrolled in the study. These patients are randomized as "Case or Control" by a computer program.

Patients can start the weaning process when the acute phase of the respiratory failure has been resolved and pressure support ventilation was setted.

For all this patients are calculated modified-BWAP(BWAP-M) and TOBIN indexes. The "Case" patients started the weaning protocol process only if BWAP-M value is more than 15 or BWAP-M 10-15 with Tobin index \< 100.

If not, the BWAP-M and Tobin will be calculated every day. The Control patients will start weaning by clinical judgement even if the BWAP-M value is less than 10.

For all patients are calculated: the duration of weaning process, the ICU length of stay and the duration of the mechanical ventilation.

Conditions

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Weaning Failure

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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case

patients with BPAW-M more than 15 or between 10 and 15, but with Tobin \<100 will be weaned with the weaning protocol by nurses

weaning protocol

Intervention Type PROCEDURE

Reduction of pressure support ventilation (PSV) by 2cmH2O at a time to a maximum of 4cmH2O per day.

When a patient was able to tolerate PSV less than 8 cmH2O for at least 120 minutes, the nurses started to reduce End Expiratory Positive Pressure (PEEP) by 2cmH2O at a time to a maximum of 4cmH2O per day.

When a patient was able to tolerate PSV less than 8 cmH2O with PEEP less than 6 cmH2O, the nurses started SBT trial: Continuos Positive Pressure Airways of 6cmH2O for at least 120 minutes and following discontinuation from ventilator.

control

patients with any BWAP-M will be weaned by clinical judgment of physicians

No interventions assigned to this group

Interventions

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weaning protocol

Reduction of pressure support ventilation (PSV) by 2cmH2O at a time to a maximum of 4cmH2O per day.

When a patient was able to tolerate PSV less than 8 cmH2O for at least 120 minutes, the nurses started to reduce End Expiratory Positive Pressure (PEEP) by 2cmH2O at a time to a maximum of 4cmH2O per day.

When a patient was able to tolerate PSV less than 8 cmH2O with PEEP less than 6 cmH2O, the nurses started SBT trial: Continuos Positive Pressure Airways of 6cmH2O for at least 120 minutes and following discontinuation from ventilator.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. all patients that are clinically identified as prolonged to wean (failed 3 spontaneous breathing trials or 7 days or more of mechanical ventilation after the initial unsuccessful trial) and tracheostomized in ICU
2. improvement or resolution of the underlying causes of acute respiratory failure ratio between pressure partial artery of oxygen and fraction inspired oxygen (PaO2/FiO2) \>200 with fraction inspired oxygen (FiO2)\< 0,45.
3. pressure supported ventilation at the time of enrollment.