[Socio-demographic, clinical, and therapeutic aspects of adolescents treated and followed for HIV infection at the Hospital Gabriel Toure paediatric center]. / Profil epidemio-clinique et therapeutique du VIH de l'adolescent au departement de pediatrie du chu Gabriel Toure.

HIV infection is a chronic infectious disease requiring long-term management and regular follow-up of patients. OBJECTIVES: The aims of this study was to describe the socio-demographic, clinical, biological and therapeutic aspects of adolescents treated and followed for HIV infection at the Hospital Gabriel Toure paediatric center. PATIENTS AND METHODS: From 01/01/2001 to 31/12/2017, the medical records of children followed for HIV infection until adolescence were analyzed. It was a descriptive and analytical retrospective study. RESULTS: One thousand five hundred and fourteen patients received antiretroviral treatment and 587 were still in follow-up on 31 December 2017, including 393 adolescents (sex-ratio = 1.2). The median age was 14.25 years and 55.1% of children had lost at least one parent. HIV serology was positive among mothers in 61.7% of cases (n=342), and 63% of them were on ARVs. Sixty-eight per cent of children were WHO Stage III or IV at the time of ART initiation. The median age at onset of ART was 53 months (26-96 months). The combination of 2 nucleotide reverse transcriptase inhibitors (NRTIs) with a non-nucleotide reverse transcriptase inhibitor (NNRTI) was used in 89% of patients. The median CD4 count before ARV treatment was 438/mm3. The average duration of follow-up under treatment was 9.8 ± 3.4 years. Fifty-one percent of adolescents had undetectable viral load. There was a correlation between the initiation of a second line of treatment and treatment failure (p<0.001). CONCLUSION: The adherence of adolescents to ARV treatment requires the implementation of innovative strategies to improve the therapeutic success rate.

L'infection à VIH est une maladie chronique infectieuse nécessitant une prise en charge longue et un suivi régulier des patients. OBJECTIFS: L'objectif de ce travail était de décrire les aspects socio-démographiques, clinico-biologiques et thérapeutiques du VIH chez l'adolescentau centre d'excellence pédiatrique de prise en charge du CHU Gabriel Toure. PATIENTS ET MÉTHODES: Il s'agissait d'une étude transversale avec recueil rétrospectif de données, qui s'est déroulée du 01/01/2001 au 31/12/2017. C'était une étudetransversale à visée analytique portant sur les dossiers des adolescents d'au moins10 ans. RÉSULTATS: Trois cent quatre-vingt-treize (393) adolescents d'au moins10 ansont été inclus. La sérologie VIH était positive chez les mères dans 61,7% des cas (n=342), et 63% d'entre elles étaient sous ARV. Soixante-huit pour cent des enfants étaient classés stade III ou IV de l'OMS au moment de la mise sous TARV. L'association de 2 inhibiteurs nucléosidiques de la transcriptase inverse (INTI) à un inhibiteur non nucléotidique de la transcriptase inverse (INNTI) a été utilisée chez 89% des patients. Le taux de CD4 médian avant la mise sous traitement ARV était de 438/mm3 La durée moyenne de suivi sous traitement était de 9,8 ± 3,4 ans. Cinquante un pourcent (51%) des adolescents étaient en succès thérapeutique avec une charge virale indétectable (< 1000 copies/ml). Il y avait une corrélation entre l'instauration d'une seconde ligne de traitement et l'échec thérapeutique (p<0,001). CONCLUSION: L'adhésion des adolescents au traitement ARV nécessite la mise en place de stratégies innovantes permettant d'améliorer le taux de succès thérapeutique.

Bandwidths limitations of giant optical field enhancements in dielectric multi-layers.

Dielectric multilayers, when properly optimized, have been shown to sustain giant optical field enhancement directly linked to the imaginary index of the materials. Such giant optical field is of great interests to increase tremendously the sensitivity of optoelectronic systems. Unfortunately, this ultra-sensitive system is also highly depending on the illumination conditions. We discuss here the effect of the angular divergence and the spectral bandwidth of the incident laser beam on the absorption and field enhancement. In this study, we clearly show that giant optical field enhancements, up to several decades, may be achievable when the incident conditions are down few µrad and pm in term of angular and spectral bandwidths respectively.

S-shaped non-paraxial corrections to general astigmatic beams.

Non-paraxial perturbation wave equations are solved for general astigmatic Gaussian beams for the first time, to the best of our knowledge, in the angular spectrum representation by taking into account generic boundary conditions. Expressions for second-order corrections are derived and exemplified with an optical cavity made of two cylindrical mirrors. Non-paraxial corrections can lead, depending on the choice of boundary conditions, to a transverse S-shaped beam mode, which has been qualitatively been observed in a highly divergent non-planar four-mirror cavity.

Solitary neurofibroma originating from the posterior nasal septum: Transnasal endoscopic resection.

INTRODUCTION: The head and neck region is one of the locations of neurogenic tumors such as neurofibroma. Although mostly associated with neurofibromatosis, it can be solitary. The present study reports a very rare case of solitary neurofibroma originating from the posterior nasal septum. CASE PRESENTATION: A 48-year-old female presented with tumor in the right nasal cavity. The tumor, originating in the posterior nasal septum, extended to the posterior sinuses and nasopharynx. Following endoscopic and radiological assessment, the tumor was resected by transnasal endoscopic surgery. Histological examination showed the tumor to be a neurofibroma. At 14months' follow-up, there was no recurrence. DISCUSSION AND CONCLUSIONS: However rare, solitary neurofibroma must be considered in the differential diagnosis of unilateral benign tumor involving nasal and paranasal sinuses. A transnasal endoscopic approach should be considered for treatment.

[Essential indicators of orodental health in Africa. Applicability in Ivory Coast]. / Indicateurs essentiels de santé bucco-dentaire de la région Afrique. Applicabilité en Côte d'Ivoire.

INTEREST OF THE PROBLEM: The objective of this study is to highlight the gaps from a consideration of the essential indicators in the national system of sanitary information of Ivory Coast. Modalities of their applicability in the surveillance of the oral health are also discussed. POSITION OF THE PROBLEM: The use of the essential indicators answers the necessity of setting up a system of surveillance of the common factors of risk based on standardized information which will allow comparisons between countries. However, the applicability of these indicators is not enough known and the quantitative measure to test their reliability and their validity was not realized yet to allow their easy consideration in global Infobase. METHOD: This study is based on the documentary analysis of the catalogue on selection of the essential indicators, and the database of the national program of oral health. RESULTS: Twenty-two essential indicators are applicable in the national information system. In particular, ten indicators are easily applicable without technical difficulties and twelve are averagely applicable. CONCLUSION: The essential indicators are pertinent for the surveillance of the oral health in Côte d'Ivoire. However, future researches are necessary to test their validity in the national information system. Also, similar pilot studies could be realized in the other African contexts to establish an operational and standardized frame to collect relevant and valid information.

Synthesis and antimalarial activity in vitro of potential metabolites of ferrochloroquine and related compounds.

In man, the two major metabolites of the antimalarial drug chloroquine (CQ) are monodesethylchloroquine (DECQ) and didesethylchloroquine (di-DECQ). By analogy with CQ, the synthesis and the in vitro tests of some amino derivatives of ferrochloroquine (FQ), a ferrocenic analogue of CQ which are presumed to be the oxidative metabolites of FQ, are reported. Desmethylferrochloroquine 1a and didesmethylferrochloroquine 2 would be more potent against schizontocides than CQ in vitro against two strains (HB3 and Dd2) of Plasmodium falciparum. Other secondary amino derivatives have been prepared and proved to be active as antimalarial agents in vitro, too.