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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT02412046
Other study ID # 95022
Secondary ID
Status Terminated
Phase N/A
First received
Last updated
Start date October 1, 2015
Est. completion date October 2, 2019

Study information

Verified date December 2021
Source University Hospital, Montpellier
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of this study is to correlate the intensity and the duration of a mechanical strain, applied over the skin of a bedridden paraplegics, with the microvascularization parameters (oxygen saturation, blood flow and blood volume) and the early inflammatory mechanism. We want to detect the early stage of irreversible damage for each patient. To achieve this goal, we measure some specifics data over a group of 48 paraplegics admitted in the hospital for a pressure ulcer surgical treatment. The patients are randomly distributed in 4 groups. First the interface pressure between the patient body and the air mattress is recorded continuously for 3 hours (= the repositioning patient frequency): we have the pressure over each point of the patient body in contact with the mattress on this time lap. Then, we will measure the microvascularization parameters, using an O2C medical device over a trochanter on a specific anatomical area which will be thereafter biopsied. Finally, depending on the group in which they were randomly distributed, the patient will undergo a muscle biopsy on his or her trochanter at 0h, 1h, 2h or 3h after they lie down on the air mattress. This way, we will be able to determine the effect of the mechanical strain duration on the physiologic parameters. The following day, the patient is undergoing his or her surgery for removing the necrotic area of the bedsore. At the same time, we will recover some of the sample near the bedsore which would serve as a maximum inflammatory response. Then a second muscle biopsy will be performed on an innervated area to be able to determine a basal concentration of biomarkers. The inclusion period for this study will be 3 years. All the patients are followed for 24 hours then they will be followed by medical staff in their bedsore resection setting. The data gained for this study will hopefully help the scientific world to achieve a better understanding of the pressure ulcer aetiology. They will also be helpful to achieve a mobilization of the patient specific of his or her inherent characteristics with a high sensitivity level. This way we will have a more efficient bedsore prevention.


Recruitment information / eligibility

Status Terminated
Enrollment 21
Est. completion date October 2, 2019
Est. primary completion date October 2, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: - Educated consent signed, - Older than 18, - Paraplegia for at least 6 months, - Patient's Body Mass Index > 18,5kg/m², - Surgery planned for pressure ulcer resection, - Pressure Ulcer classification (EPUAP) at least III or IV Exclusion Criteria: - Cardiac pathology, - Duchenne muscular dystrophy, - Dementia, - Presence of a tumourous wound, - Stade IV arteritis non-revascularisable, - Diabetes mellitus, - Cachexia, - Impossibility to stop the anti-coagulant treatment 24 hours before the patient admission, - Xylocaine allergy, - Patient took aspirin or anti-inflammatory 3 days before the biopsy, - Patient taking part in another study, - Patient with no health insurance, - Pregnant women or breast-feeding, patient unable to give his or her educated consent, ward of the state (art. L.1121-6, L.1121-7, L.1211-8, L.1211-9)

Study Design


Intervention

Procedure:
Muscle biopsy


Locations

Country Name City State
France CHU Montpellier Montpellier

Sponsors (2)

Lead Sponsor Collaborator
University Hospital, Montpellier Hill-Rom

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary The interface pressure will be continuously assessed using a mapping device (XSensor) during 3 hours. The first day of the patient admission (during the first 3 hours).
Secondary The microvascularization changes underneath the compressed skin and the inflammatory response of the muscle cells. The blood flow, the oxygen saturation and the hemoglobin amount will be measured using a medical device called Oxygen To See (O2C). The reactive oxygen species or ROS and other specific biomarkers will be used to measure and quantify the inflammatory response of muscle cells. The first day of the patient admission (during the first 3 hours).
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