Overview
The objective of this study is to evaluate the relevance of Porphyromonas as a biomarker predicting the risk of P. aeruginosa primocolonization in children form 0 to 18 years old with cystic fibrosis.
Description
This is a monocentric study in 3 phases:
- Pre-inclusion: at the first visit to the CRCM (support for a positive screening confirmed by sweat test and genotyping CFTR)
- Inclusion: possible between the 2nd visit to the CRCM (about 2 months old) and the 6th month
- Follow-up: up to 36 months old. The pace of visits will be based on the usual follow-up rate of CF infants Clinical and paraclinical data and samples will be collected as part of the usual follow-up of CF children. Inclusions and follow-up visits will be carried out at the Roscoff CRCM as well as respiratory explorations and biological samples. Dermatological and odontological follow-ups will be scheduled for each patient at the rate of an annual visit to the CHRU in Brest in the relevant departments.
Eligibility
Inclusion Criteria:
- Newly screened infants with a confirmed diagnosis of cystic fibrosis in its classic form (clinical symptoms and two positive sweat tests and/or two mutations of the cftr gene from Class I to III)
- Children free of any colonization with P. aeruginosa
- Affiliation with the social security system
- Consent signed by the holders of parental authority or the sole parent holding parental authority
Exclusion Criteria:
- Children colonized with P. aeruginosa according to the cytobacteriological examination and / or molecular test of sputum or pharyngeal specimens
- Children grafted
- Children not affiliated to a social security scheme or not entitled to
- Children whose parent (s) are (are) minor (s)
- Children whose holders of parental authority do not master the French language
- Refusal to participate in the study