Flow Cytometry Applied to the Diagnosis of Peri-anaesthesic Reactions (CYPREANE)

University of Limoges (UL)

Status: Completed

Conditions: Allergy

Treatments: Other: Blood simple

Study type: Interventional

Funder types: Other

Identifiers

NCT01305161

I09010

Details and patient eligibility

About

To assess diagnostic accuracy of flow cytometry applied to the diagnosis of allergy to neuro-muscular blockers and to the determination of the neuro-muscular blocker (NMB) which may be used for an ulterior anaesthesia in case of allergy to one given NMB.

Full description

The flow cytometric protocol used for this study, was based on basophil selection by an anti- CCR3 and the analysis of basophil activation by the respective up and down regulation of the CD63 and IgE markers as described previously. Basophil activation was expressed in percentage CD63 expression on activated basophils and in activation index involving IgE and CD63 markers and calculated by a specific algorithm developed by our group.. Our aim is to test a sufficient number of patients in order to be able to establish the ROC curves related to the allergen type tested and validate the use of an allergen mixture (NMB mix containing the 7 usual NMB at the optimal activation concentrations). Patients will be included during the post-anaesthetic consultation on the basis of the diagnosis of an IgE dependant per-anaesthetic reaction. The allegro-anaesthetist diagnostical habits won't be changed.

Enrollment: 129 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients aged at least 18 years,
• patients having experienced an IgE dependant per-anaesthetic reaction
• affiliated to a social security

Exclusion criteria

• patients having taken anti-histamine drugs and corticoids during the last 8 days
• patients submitted to a juridical protection

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)