ABSTRACT
OBJECTIVES: Hemophagocytic syndrome (HPS) is characterized by various clinical and biological data derived from cytokine hyperproduction and cell proliferation. The objectives of this study were to evaluate the epidemiological, etiological, clinical and evolutionary characteristics of patients diagnosed with hemophagocytic syndrome and HIV infection, as well as their comparison with data from the literature. METHODS: A retrospective descriptive observational study was performed, including all adult patients with a diagnosis of HPS and HIV infection treated in the Infectious Diseases and Tropical Medicine Unit of the Hospital Universitario Insular, Las Palmas, Gran Canaria from June 1, 1998 to December 31, 2018. RESULTS: An analysis of this series of case reports of 15 patients showed a higher percentage of males than females, with a mean age of 42 years. With respect to the diagnostic criteria for HPS, presence of fever, cytopenias and hyperferritinemia were a constant in all patients. Clinical neurological manifestations were frequent and clinical respiratory signs and symptoms absent. HPS was confirmed in some patients who were not severely immune-depressed and had undetectable viral loads. Furthermore, 40% of cases were not receiving ART. The most frequent triggering causes of HPS were viral, especially HHV-8. In addition, two new HPS triggers were identified: Blastocystis dermatitidis and Mycobacterium chelonae. CONCLUSION: Administration of treatment in HPS is arbitrary. This, together with the high mortality rate and the fact that it is underdiagnosed, indicates the importance of conducting future studies
OBJETIVOS: El síndrome hemofagocítico (HPS) se caracteriza por varios datos clínicos y biológicos derivados de la hiperproducción de citocinas y proliferación celular. Los objetivos fueron evaluar las características epidemiológicas, etiológicas, clínicas y evolutivas de los pacientes con diagnóstico de síndrome hemofagocítico e infección por VIH así como su comparación con los datos bibliográficos. PACIENTES Y MÉTODOS: Se realizó un estudio observacional descriptivo retrospectivo incluyendo todos los pacientes adultos con diagnóstico de HPS e infección por VIH, atendidos en la Unidad de Enfermedades Infecciosas y Medicina Tropical del Hospital Universitario Insular de Las Palmas de Gran Canaria desde 1 de junio 1998 hasta 31 de diciembre de 2018. RESULTADOS: Se analizó una serie de casos de 15 pacientes, observando un mayor porcentaje de varones con edad media de 42 años. En cuanto a los criterios de HPS se observa que la presencia de fiebre, citopenias e hiperferritinemia era constante en todos los pacientes. Las manifestaciones clínicas neurológicas fueron frecuentes y ausente la clínica respiratoria. Se confirmó HPS en algunos pacientes sin inmunodepresión grave y carga viral indetectable. Además, un 40% de los casos no recibían ART. Las causas desencadenantes de HPS más frecuentes fueron las víricas, especialmente HHV-8. Además, se identificaron dos nuevos agentes desencadenantes de HPS: Blastocystis dermatitidis y Mycobacterium chelonae. CONCLUSIÓN: La administración de tratamiento en HPS es arbitraria lo que unido a su alta tasa de mortalidad e infradiagnóstico indican la importancia de continuar realizando estudios futuros
Subject(s)
Humans , Male , Female , Adult , Middle Aged , HIV Infections/complications , Lymphohistiocytosis, Hemophagocytic/complications , Mycobacterium chelonae/isolation & purification , Blastocystis/isolation & purification , Retrospective Studies , Iron Overload/etiology , Blastocystis Infections/epidemiology , Mycobacterium Infections, Nontuberculous/epidemiologyABSTRACT
Immune reconstitution inflammatory syndrome (IRIS) includes a group of potentially serious inflammatory processes that may be present in HIV-infected patients after initiating highly active antiretroviral therapy (HAART). Paradoxical IRIS is a worsening of symptoms, after an overwhelming response to a previously diagnosed opportunistic infection (OI); unmasking IRIS reveals a previously occult OI. The main objective of the study was to describe the epidemiological, clinical, and outcome data of HIV-infected immigrants, stratified according to high- or low-income countries of origin, who developed IRIS and to compare them with native-born Spanish patients. This retrospective study reviewed all patients with HIV infection admitted to the Unit of Infectious Diseases and Tropical Medicine between 1998 and 2014. IRIS was identified in 25/138 (18%) immigrant patients and 24/473 (5%) native-born Spanish patients infected with HIV. Most cases, 19/25 (76%), were of unmasking IRIS. The time elapsed between initiation of HAART and development of IRIS was significantly longer in patients with unmasking versus paradoxical IRIS. OIs, in particular due to mycobacteria, were the most frequently involved processes. Twenty percent of patients died. The comparison of immigrant and native-born patients found significant differences for both IRIS type (higher incidence of paradoxical forms among immigrants) and for the absence of malignancies in native-born patients. No significant differences were found when the data of immigrants from low- and high-income countries were compared.
