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In this study patients who are intubated and on ventilator for more than 24h will be ventilated at three different level of support in Pressure Support and Neural Pressure Support to study patient-ventilator synchrony and muscle unloading.
This study is an interventional randomized crossover study in intubated and mechanically ventilated patients for more than 24h. Eligible patients from whom informed consent is obtained and Pes and Edi catheter are successfully positioned are enrolled in the study. Patients will be ventilated in Pressure Support and Neural Pressure Support at three different level of assist (baseline, 50% and 150% of baseline respectively) in randomized order. Ventilator curves will be recorded and bloodgas obtained at the end of each study step, each lasting 20min.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Neural Pressure Support | Experimental | Patients will be ventilated in Pressure Support and Neural Pressure Support at 3 different levels of support in randomized order |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Neural Pressure Support (mode of mechanical ventilation) | Device | Nasogastric tube will be removed and replaced by a Esophageal catheter and Electrical Diaphragm activity catheter and mechanical ventilation in mode Neural Pressure Support |
| Measure | Description | Time Frame |
|---|---|---|
| Patient-ventilator asynchronies | quantification of asynchronies by the use of the Edi catheter | 20 minutes ventilatory traces recording |
| Measure | Description | Time Frame |
|---|---|---|
| respiratory muscle unloading | quantification of muscle unloading by use of Pes | 20 minutes ventilatory traces recording |
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Inclusion Criteria:
-Patients intubated for more than 24 hours in the weaning phase from the ventilator.
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Campoccia Jalde | Contact | +46703947741 | francesca.campoccia-jalde@regionstockholm.se | |
| Karolinska University Hospital | Contact |
| Name | Affiliation | Role |
|---|---|---|
| Francesca Campoccia Jalde | Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden. | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Karolinska University Hospital | Recruiting | Solna | 17176 | Sweden |
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Interventional prospective study. Each participant is ventilated both on PS and NPS at 3 different support levels.
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