Mechanical Ventilation Clinical Trial
— STEP-PEEPOfficial title:
Fluid Responsiveness Predicted by a Stepwise PEEP Elevation Recruitment Maneuver in Mechanically Ventilated Patients, a Pilot Study
Verified date | March 2020 |
Source | Centre Hospitalier Universitaire de Saint Etienne |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
Hemodynamic and fluid optimization during perioperative period can reduce postoperative morbidity. The assessment of preload and determination of whether the patient is fluid responsive is still challenging. Static preload indices such as central venous pressure are not accurate to assess fluid responsiveness contrary to dynamic preload indices such as pulse pressure variation (PPV) and stroke volume (SV) variation. However, such indices suffer from several limitations and should be used under strict conditions. Alternative dynamic methods such as lung recruitment maneuvers (LRM) have been developed LRM can be used to reopen or prevent collapsed lung under mechanical ventilation so as to decrease respiratory complications. LRM induces a transient increase in intra-thoracic pressure and decreases in venous return, leading to a decrease in left ventricular end-diastolic area and stroke volume. Several studies have shown that the PEEP-induced decrease in stroke volume is related to pre-existing preload responsiveness. Few studies have also shown that LRM can represent a functional test to predict fluid responsiveness. However, monitoring stroke volume during LRM to assess fluid responsiveness is costly, and cardiac output devices may not be reliable. In this context, central venous pressure (CVP) or systemic arterial parameters monitoring are easily accessible and inexpensive during major surgery.
Status | Completed |
Enrollment | 18 |
Est. completion date | July 31, 2019 |
Est. primary completion date | July 31, 2019 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - needing invasive arterial blood pressure and pulse contour analysis (PICCO system) for cardiac output measurement, - central venous pressure monitoring, - using of protective mechanical ventilation - Indication for fluid expansion - Admitted in the intensive care unit of CHU of St ETienne Exclusion Criteria: - right ventricular dysfunction - significant valvulopathy, - ejection fraction less than 50%, - arrhythmia - contraindication to LRMs |
Country | Name | City | State |
---|---|---|---|
France | CHU de Saint-Etienne | Saint-Étienne |
Lead Sponsor | Collaborator |
---|---|
Centre Hospitalier Universitaire de Saint Etienne |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | pulse pressure (mmHg) | Pulse pressure = systolic aortic pressure - diastolic aortic pressure | At the inclusion | |
Primary | systolic aortic pressure (mmHg) | At the inclusion | ||
Primary | diastolic aortic pressure (mmHg) | At the inclusion | ||
Secondary | mean arterial pressure (mmHg) | At the inclusion | ||
Secondary | Stroke volume (ml) | At the inclusion | ||
Secondary | central venous pressure (mmHg) | At the inclusion |
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