Cardiac Surgery Clinical Trial
Official title:
Diagnostic Interest of Leukocyte Immunophenotyping Using Multiparameter 8-color Flow Cytometry in Heart Surgery
In septic patients, Septiflux1 study identified immature granulocytes which may have a diagnostic and prognostic interest. However, with these preliminary results it is not possible to make a difference between what is linked to the infection and what is a consequence of the inflammation which goes along with the septic process. Using flow cytometry, the study of leukocytes in a pure inflammatory model such as cardiopulmonary bypass in heart surgery could make possible to test the diagnostic interest of the immature granulocytes but also to attribute a prognostic value for the occurrence of post-operative infections.
Expression of CD10, CD16, CD24, CD64 on granulocytes, of CD14 and CD16 on monocytes and of
CD3 on T lymphocytes.
Flow cytometers will all be calibrated the same way using common reagents (known fluorescent
calibration beads). Moreover, CD45 and CD3 level of expression on lymphocytes will help to
check that the collection of data is standardized between the different centers.
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Observational Model: Cohort, Time Perspective: Prospective
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