NCT02216019

Diagnostic Interest of Leukocyte Immunophenotyping Using Multiparameter 8-color Flow Cytometry in Heart Surgery

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 60 (actual)
• Sponsor: University Hospital, Limoges · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

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.

Detailed description

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.

Conditions

• Cardiac Surgery

Interventions

Type	Name	Description
OTHER	Whole blood	preoparatoire whole blood and postoperative whole blood

Timeline

• Start date: 2013-11-01
• Primary completion: 2014-04-01
• Completion: 2014-04-01
• First posted: 2014-08-13
• Last updated: 2014-08-15

Locations

1 site across 1 country: France