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

University of Limoges (UL)

Status: Completed

Conditions: Cardiac Surgery

Treatments: Other: Whole blood

Study type: Observational

Funder types: Other

Identifiers

NCT02216019

I13015 Influx

Details and patient eligibility

About

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.

Full 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.

Enrollment: 60 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patient older than 18 years old
• Patient undergoing planned heart surgery with cardiopulmonary bypass

Exclusion criteria

• Pregnancy,
• progressive solid cancer,
• HIV infection,
• history of blood or inflammatory disease,
• long-term immunosuppressive treatment,
• urgent surgical intervention,
• documented preoperative infection

Trial design

60 participants in 1 patient group

study cohort

Description:

Patient undergoing planned heart surgery with cardiopulmonary bypass

Treatment:

Other: Whole blood