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Successful weaning from mechanical ventilation in ICU patients depends on patient ability to breathe spontaneously and on cough efficiency. Previous studies found that cough peak flow (CPF) at 60 L/min threshold predicted extubation failure. These studies measured CPF using a dedicated flow-meter that required patient disconnection from the ventilator, limiting the generalizability of this procedure. This study aimed to predict extubation outcome in a consecutive series of patients by measuring CPF from the ventilator flow-meter. CPF measurements were done by freezing ventilator screen and scrolling the cursor to the maximal value of CPF during expiration and Tidal Volume (TV) in preceding inspiration.
The objective was to assess the performance of CPF to predict early extubation outcome.
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| Measure | Description | Time Frame |
|---|---|---|
| Early extubation success rate (EES rate) | Defining a relation between the CPF/TV ratio before extubation and early extubation success rate | 48 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Scheduled weaning trial success rate | Defining a relation between the CPF/TV ratio before weaning trial and scheduled weaning trial success rate | 48 hours |
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Inclusion Criteria:
Exclusion Criteria:
- Withdrawal decision of life supporting care
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Patients admitted to a 15-bed medical ICU from November 1st 2014 to October 31st 2015
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| Name | Affiliation | Role |
|---|---|---|
| Florent GOBERT, MD | Hospices Civils de Lyon | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Medical Intensive care unit, Croix-Rousse Hospital. 103 Grande Rue de la Croix-Rousse | Lyon | 69004 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28900041 | Derived | Gobert F, Yonis H, Tapponnier R, Fernandez R, Labaune MA, Burle JF, Barbier J, Vincent B, Cleyet M, Richard JC, Guerin C. Predicting Extubation Outcome by Cough Peak Flow Measured Using a Built-in Ventilator Flow Meter. Respir Care. 2017 Dec;62(12):1505-1519. doi: 10.4187/respcare.05460. Epub 2017 Sep 12. |
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