%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Badiou, S. %A Cournil, Amandine %A Toubal, S. %A Bargnoux, A. S. %A Dupuy, A. M. %A Fernandez, C. %A Peyriere, H. %A Reynes, J. %A Cristol, J. P. %T Long term reference change value of creatinine in HIV-positive patients with anti-retroviral therapy : a new tool in clinical practice %D 2015 %L fdi:010064651 %G ENG %J Clinical Biochemistry %@ 0009-9120 %K Creatinine ; HIV ; Ritonavir ; Reference change value ; Renal ; tenofovir %K FRANCE %M ISI:000355213600013 %N 9 %P 622-624 %R 10.1016/j.clinbiochem.2015.01.002 %U https://www.documentation.ird.fr/hor/fdi:010064651 %> https://www.documentation.ird.fr/intranet/publi/2015/06/010064651.pdf %V 48 %W Horizon (IRD) %X Background: The use of reference change value (RCV) instead of reference interval emerged as an alternative approach for longitudinal interpretation of biological marker. Follow-up of creatinine variation in HIV-positive adults remains a challenge in order to prevent renal complications. Objectives: To determine the long term RCV of creatinine in HIV-positive adults receiving anti-retroviral therapy (ART) according to the use of tenofovir or ritonavir. Design and methods: Longitudinal study of 24 months that include 124 HIV-positive patients followed in HIV outpatient unit. Plasma creatinine was measured at 0, 6, 12 and 24 months in order to calculate the RCV. Results: In the whole group, a 24-month RCV of creatinine was 22.5%. Whatever the ART, the index of individuality was <0.6. Significantly higher RCV of creatinine was observed in patients receiving the association tenofovir and ritonavir (28%) compared to the patients receiving i) tenofovir without ritonavir (21.9%), ii) no tenofovir but ritonavir (22.2%), and iii) no tenofovir and no ritonavir (19.7%). Conclusions: The low value of index of individuality pinpointed that RCV should be used to identify critical change in serial creatinine results in HIV-positive adults. RCV of creatinine under ART was around 20% but reached 28% in case of association of tenofovir and ritonavir. %$ 050 ; 052 ; 020