[Immune profile of elderly patients admitted in a geriatric short care unit]. / Étude du profil immunitaire de sujets âgés hospitalisés en unité de court séjour gériatrique.

INTRODUCTION: Immunosenescence embraces the whole of age-induced changes observed in the immunomodulatory functions of a living organism, and is mostly characterized by a decrease in cell-mediated immunity and important modifications of the immunological repertoire. The impact of the pathology on ageing immunity is poorly understood and few data are available on the immunological status of old polypathological patients. METHODS: We report the results of a prospective study aiming at characterizing several established immunological parameters in patients of 75 years old or more, and admitted for diverse pathologies in a unit of acute geriatric ward. RESULTS: Among the 51 included patients (35 women and 16 men), 90% displayed poly-pathologies. We found a prevalence of 86% of immunological abnormalities, with lymphopenia among 41% of the patients (<1500/mm(3)) and abnormal lymphocytes phenotypes among 95% of the oldest patients (>85 years). A strong skewing towards memory T lymphocytes (CD45RO+) over naive T lymphocytes (CD45RA+) was found in 80% of the cases and inverted CD4/CD8 T cells ratio was observed in 12% of our patients. Vitamin D insufficiency (<30ng/ml), which is frequent among the patients (94%), is a predictive factor for T and B cell lymphopenia. CONCLUSION: Immunological abnormalities are frequent in this frail population and lymphopenia, in particular, could constitute a reinforcing factor of fragility. Vitamin D deficiency could also affect elderly patients' immunity.

[Efficiency and safety of antiretroviral treatment among the elderly in Abidjan]. / Efficacite et tolerance du traitement antiretroviral chez les sujets ages a Abidjan.

OBJECTIVE: To evaluate the efficacy of antiretroviral treatment in elderly people followed at the Unit for Infectious and Tropical Diseases at the University Hospital in Abidjan. MATERIAL AND METHODS: We performed a retrospective descriptive study of the files of people aged at least 60 years, infected by HIV who were treated and followed-up in the Unit between 1 January 1999 and 31 December 2006. We analysed sociodemographic (age, sex), clinical (weight, Karnofsky scale, CDC, opportunistic infections), biological (HIV, CD4, haemogram, glycaemia, creatininaemia, transaminasaemia) and therapeutic (antiretroviral regimens, evolution, side-effects) parameters. The efficacy of treatment was evaluated as the percentage of patients with < 200 CD4/ml, and its safety was based on deleterious effects. RESULTS: We studied 62 patients (44 men, 18 women), of whom 13 had been treated (21%), 46 had not been treated (74.2%) and 48 (77.4%) were undergoing chemoprophy-laxis with cotrimoxazole. Most were infected with HIV1 (93.6%), 3.2% with HIV2 and 3.2% with both HIV1 and HIV2. The majority (93.3%) was symptomatic, and 67.8% had AIDS. During 34 months of follow-up, 48 patients (77.4%) received first-line treatment, 13 (21%) received second-line and only one patient (1.6%) had third-line treatment. The percentage of patients with more than 200 CD4/ml increased from 20% at baseline to 36% at 6 months and 39% at 12 months. The main clinical side-effect was peripheral neuropathy (30.5%), and the main biological effect was hypertransaminasaemia > 2N (32.3%). The median rate of loss to follow-up was 17.7%, and two patients (3.2%) died. CONCLUSION: Antiretroviral treatment is effective in the elderly, with few biological disorders. A prospective study of a larger sample would elucidate the differences from younger people in the efficacy of such treatment.

[Medical emergencies related to HIV/AIDS in tropical zones: a prospective study in Cote d'Ivoire (1999-2000)]. / Urgences médicales liées au VIH/SIDA en zone tropicale: étude prospective en côte d'ivoire, 1999-2000.

At the beginning of the HIV epidemic, the incidence of the complications considered as emergencies was high in developed countries but with the advent of new therapeutic strategies the frequency of such complications and the associated need for emergency treatment decreased drastically. In developing countries where management resources remain limited, HIV/AIDS patients are still exposed to the risk of serious complications. However few studies have documented exact implication of HIV/AIDS in medical emergencies hospitals in developing countries. The purpose of this prospective study was to describe medical emergencies related to HIV infection in adult patients admitted at Treichvilie University Hospital Center. Evaluation of prevalence was carried out in the infections disease and internal medicine emergency units between May 1999 and January 2000. All patients over the age of 15 years were included after informed consent to undergo pre-testing and HIV serology. A total of 400 patients were recruited including 312 that were HIV positive (78%). Mean patient age of patients was 35 years. The male-to-female sex ratio was 1. The most frequent motives for emergency consultation were deterioration of general condition (62%), diarrhea (39.1%) and cough (20.5%). Illness was chronic in 54% of cases. Physical signs were severe weight lost (84%), fever (50%), pale conjunctivas (29%), respiratory signs (19.2%) and dehydration (19%). The most frequent organic involvement causing admission was digestive (39.7%), neurological (24.4%) and pulmonary (20.5%). No deaths were observed. Most medical emergencies related to the HIV infection in the adult involved opportunistic diseases. They pose a challenge for therapeutic management.