Avaliação do perfil bioquímico, hematológico e imunológico em pacientes com diagnóstico recente para HIV de um Centro de Referência em Santarém, Pará, Brasil / Evaluation of the biochemical, hematological and immunological profile in patients with a recent diagnosis of HIV in Santarém Reference Center, Pará, Brazil

Introdução: Alterações hematológicas, bioquímicas e imunológicas podem estar presentes no paciente infectado pelo HIV, no momento do diagnóstico, antes ou depois de iniciar com os antirretrovirais. Objetivo: Analisar o perfil bioquímico, hematológico e imunológico de pacientes com diagnóstico recente para HIV. Método: O estudo avaliou 321 prontuários de pacientes recém diagnosticados com a infecção pelo HIV. A coleta de dados envolveu informações sociodemográficas (data de nascimento, idade, sexo, escolaridade, estado civil, vínculo empregatício e procedência), clínicas (data do diagnóstico para a infecção pelo HIV, situação de imunodeficiência e tipo de exposição), bioquímicas (glicose, triglicerídeos, colesterol total e frações), hematológicas (hemoglobina e plaqueta) e imunológicas (linfócitos T CD4+ e carga viral). Os dados foram analisados por estatística descritiva e inferencial, adotando-se p<0,05. Resultados: Notou-se predominância do sexo masculino (67%), faixa etária de 18-27 anos (39,9%), solteiros (58,6%) e com 32% dos pacientes apresentando Aids. Das variáveis analisadas, o sexo masculino apresentou, em relação às mulheres, maior quantidade de hemoglobina e menores valores para contagem de linfócitos T CD4+, glicose e colesterol total (p<0,05). Além disso, ressalta-se que 69% da amostra apresentou alguma alteração lipídica, 96% tinha carga viral detectável e 29% apresentou linfócitos T CD4+ <200 cel/mm3. Conclusão: Pessoas vivendo com o HIV, no momento do diagnóstico, podem apresentar alterações imunológicas, hematológicas e bioquímicas, tornando imprescindível a avaliação, acompanhamento e orientação multiprofissional, tanto antes como posterior introdução dos antirretrovirais, a fim de evitar futuros agravos a saúde. [au]

Introduction: Hematological, biochemical, and immunological alterations may already be present in HIV-infected patients at the time of diagnosis or before, or after starting antiretroviral therapy. Objective: Analyze the biochemical, hematological, and immunological profile of patients with a recent diagnosis of HIV. Method: The study evaluated 321 medical records of patients newly diagnosed with HIV infection. Data collection involved sociodemographic (date of birth, age, gender, education, marital status, employment relationship, and origin), clinical (date of diagnosis for HIV infection, immunodeficiency status, and type of exposure), biochemical (glucose, triglycerides, total cholesterol, and fractions), hematological (hemoglobin and platelet) and immunological (CD4+ T lymphocytes and viral load) information. Data were analyzed by descriptive and inferential statistics, adopting p<0.05. Results: There was a predominance of males (67%), aged 18-27 years (39.9%), single (58.6%), and 32% of patients had AIDS. Of the variables analyzed, males presented higher amounts of hemoglobin and lower values for CD4+ T lymphocyte count, glucose, and total cholesterol in relation to females (p<0.05). In addition, it is noteworthy that 69% of the sample presented a lipid alteration, 96% had a detectable viral load, and 71% had CD4+ T lymphocytes <200 cells/mm3. Conclusion: People living with HIV, at the time of diagnosis, may present immunological, hematological, and biochemical alterations, making multidisciplinary evaluation, follow up, and guidance essential, both before and after the introduction of antiretroviral therapy, in order to avoid future health problems. [au]

Supervivencia en las personas que viven con VIH en el marco del sistema de salud colombiano 2011-2018 / Survival in people living with HIV in the framework the Colombian health system: 2011-2018

Resumen Objetivo: Describir la supervivencia a siete años y los principales factores asociados a esta, en las personas con VIH que fueron atendidas en el sistema de salud colombiano entre 2011 a 2018. Métodos: Análisis de supervivencia de una cohorte de 64 039 personas diagnosticadas con VIH en Colombia. Se aplicó el método de Kaplan-Meier para estimar la probabilidad de supervivencia a partir de la fecha del diagnóstico. Se ajustó un modelo de supervivencia paramétrico flexible de Royston Parmar. Resultados: La estimación de la supervivencia global a 7 años fue de 94,8% (IC 95%: 94,5-95,2). El mayor riesgo de muerte se presentó en los hombres (HR: 1,2; IC 95%: 1,1-1,4; p: 0,010); en personas ≥50 años de edad (HR: 3,1; IC 95%: 1,6-6,3; p: 0,002); en el régimen subsidiado (HR: 2,2; IC 95%: 1,9-2,5; p: <0,001); en la etapa sida (HR: 2,8; IC 95%: 2,1-3,7; p: <0,001); en quienes presentaron la última carga viral detectable (HR: 7,1; IC 95%: 6,0-8,3; p: <0,001); y en quienes mostraron conteo de linfocitos T CD4+ <350 células/μL (HR: 1,9; IC 95%: 1,4-2,4; p: <0,001). Conclusión: La probabilidad de la supervivencia de las personas que viven con VIH aumenta al ser diagnosticados en edades jóvenes, en quienes presenten un recuento de linfocitos T CD4+ ≥350 células/μL, una carga viral indetectable (< 50 copias/mL) y no se encuentren en etapa sida.

Summary Objective: to describe the seven-year survival and predictors of mortality among people with HIV who were treated in the Colombian health system between 2011 and 2018. Methods: 64 039 people diagnosed with HIV in Colombia were included. Kaplan-Meier analysis estimated the probability of survival from the date of diagnosis. A Royston Parmar flexible parametric survival model was fitted. Results: The overall survival at 7 years was 94.8% (95% CI: 94.5-95.2). Survival was related to sex (men, HR: 1.2; 95% CI: 1.1-1.4; p: 0.010); people ≥50 years of age (HR: 3.1; 95% CI: 1.6-6.3; p: 0.002); subsidized regime (HR: 2.2; 95% CI: 1.9-2.5; p: <0.001); AIDS stage (HR: 2.8; 95% CI: 2.1-3.7; p: <0.001); a detectable viral load (HR: 7.1; 95% CI: 6.0-8.3; p: <0.001); and a CD4+ Lymphocyte count <350 cells/μL (HR: 1.9; 95% CI: 1.4-2.4; p: <0.001). Conclusion: The probability of survival of people living with HIV increases when they are diagnosed at a young age, in those with a CD4+ T Lymphocyte count ≥350 cells/μL, an undetectable viral load (<50 copies/mL) and are not in the AIDS stage.

Polimorfismo genético del correceptor CCR5 en pacientes cubanos VIH/sida de la tercera edad / Genetic polymorphism of the CCR5 coreceptor in Cuban elderly HIV/AIDS patients

Introducción: El polimorfismo en algunos genes de quimiocinas se asocia con resistencia a la infección por VIH-1, en este sentido la presencia de la mutación Δ32 del correceptor CCR5 en homocigosis, se relaciona con resistencia a la infección y la mutación heterocigótica con un retraso en la progresión de la enfermedad. Objetivos: Identificar la frecuencia del polimorfismo genético del correceptor CCR5 en los pacientes bajo estudio, así como su relación con los niveles de linfocitos T CD4+, la carga viral y las enfermedades oportunistas. Métodos: Se realizó un estudio de corte transversal en 45 pacientes VIH/sida de la tercera edad, cubanos atendidos en el Centro Hospitalario Universitario del IPK durante los meses de enero a mayo de 2019 en el servicio de Medicina del Centro Hospitalario Universitario del IPK, a los que se les realizó la reacción en cadena de la polimerasa (PCR) para determinar el polimorfismo genético del correceptor CCR5. Resultados: El polimorfismo genético del correceptor CCR5 que predominó fue el homocigótico salvaje con 87 por ciento seguido del heterocigótico Δ32 con 13 por ciento. El 80 por ciento de los pacientes presentaron carga viral no detectable y el 56 por ciento niveles de linfocitos T CD4+ por encima de 350 cél/µL. La enfermedad oportunista que predominó fue la neumonía por Pneumocystis jirovecii en 32 por ciento de los sujetos estudiados. No se observaron diferencias estadísticamente significativas entre el polimorfismo genético del correceptor CCR5 y los niveles de linfocitos T CD4+, la carga viral y las enfermedades oportunistas presentes en los pacientes estudiados. Conclusiones: Los polimorfismos genéticos del correceptor CCR5 hallados fueron el homocigótico salvaje y el heterocigótico-∆32. Fue limitado el polimorfismo del gen en los pacientes estudiados(AU)

Introduction: Polymorphism in some chemokine genes is associated to resistance to HIV-1 infection. Homozygous Δ32 mutation of the CCR5 coreceptor is related to resistance to infection, whereas heterozygous mutation is related to a delay in the progress of the disease. Objectives: Identify the frequency of genetic polymorphism of the CCR5 coreceptor in the patients studied, as well as its relationship to CD4+ T lymphocyte levels, viral load and opportunistic diseases. Methods: A cross-sectional study was conducted of 45 Cuban elderly HIV/AIDS patients attending the Medicine Service of the University Hospital Center at IPK from January to May 2019. These patients underwent polymerase chain reaction testing (PCR) to determine genetic polymorphism of the CCR5 coreceptor. Results: A predominance was found of wild homozygotous genetic polymorphism of the CCR5 coreceptor with 87 percent, followed by heterozygotous Δ32 genetic polymorphism with 13 percent. In 80 percent of the patients studied the viral load was undetectable, whereas in 56 percent CD4+ T lymphocyte levels were above 350 cel/µl. The prevailing opportunistic disease was Pneumocystis jirovecii pneumonia in 32 percent of the subjects. Statistically significant differences were not found between genetic polymorphism of the CCR5 coreceptor and CD4+ T lymphocyte levels, viral load and the opportunistic diseases present in the patients studied. Conclusions: The genetic polymorphisms of the CCR5 coreceptor found in the study were of the wild homozygotous and heterozygotous Δ32 types. Gene polymorphism was limited in the patients studied(AU)

Manifestaciones oculares asociadas a CD4+ en pacientes con virus de inmunodeficiencia humana / Ocular manifestations associated to CD4+ in patients with human immunodeficiency virus

Introducción: desde los primeros casos de virus de inmunodeficiencia humana (VIH), se conocen manifestaciones oculares secundarias a la infección y estas se han relacionado con el conteo de linfocitos CD4+. Objetivo: describir la correlación entre las manifestaciones oculares en pacientes con VIH y el conteo de linfocitos CD4+. Material y métodos: estudio transversal analítico de pacientes con VIH, en quienes se analizó la correlación entre conteo de CD4+ y manifestaciones oftalmológicas. Resultados: se incluyeron 21 pacientes entre 26 y 67 años de edad. Solo tres no se encontraban en terapia antirretroviral. El 67% presentó algún tipo de manifestación ocular, 42% presentó manifestaciones no relacionadas con la infección, 47% manifestaciones relacionadas y 24% ambas. La microangiopatía de la conjuntiva fue la manifestación ocular más frecuente (35.7%). Hubo una correlación estadísticamente significativa (r = 0.76, p = 0.0001) entre las manifestaciones oculares relacionadas con la infección y el conteo de linfocitos CD4+. Conclusiones: los pacientes con VIH presentan con frecuencia manifestaciones oculares, la mayoría asociadas a la infección. Existe correlación entre la presencia de estas con el conteo de CD4+; sin embargo, un número similar de manifestaciones no asociadas a la infección se presentaron sin correlación con el conteo, por lo que los pacientes con VIH deberían tener revisiones oftalmológicas periódicas, independientemente del conteo de CD4+.

Background: Since the first cases of human immunodeficiency virus (HIV), ocular manifestations secondary to infection have been known and these have been related to the CD4+ lymphocyte count. Objective: To describe the correlation between ocular manifestations in patients with HIV and the CD4+ lymphocyte count. Material and methods: Analytical cross-sectional study of patients with HIV whose CD4+ count was correlated with the presence of ophthalmological manifestations. Results: 21 patients between 26 and 67 years were studied. Only 3 patients were not on antiretroviral therapy. 67% of the patients presented some type of ocular manifestation, 42% presented non-infection related manifestations, 47% related manifestations and 24% both. Conjunctival microangiopathy was the most frequent ocular manifestation (35.7%). There was a statistically significant correlation (r = 0.76, p = 0.0001) between eye manifestations related to infection and CD4+ lymphocyte count. Conclusions: Patients with HIV frequently present ocular manifestations, the majority related to infection; there is a correlation between the presence of these with the CD4+ count. However, a similar number of manifestations not related to infection occurred without correlation with the count; therefore, HIV patients should have periodic ophthalmological examinations, independently of CD4+ count.

Características clínico-epidemiológicas de mujeres con Virus de Inmunodeficiencia Humana. Boyeros. 1986-2016 / Clinical and epidemiological characteristics of women with Human Immunodeficiency Virus. Boyeros. 1986-2016

Introducción: En los últimos años las mujeres constituyen uno de los grupos más vulnerables y afectados por el VIH. Objetivo: Determinar características clínico-epidemiológicas de mujeres con VIH, residentes en el municipio Boyeros. Material y métodos: investigación descriptiva, retrospectiva de pacientes femeninas con VIH, diagnosticadas y residentes en el municipio Boyeros, desde 1986 hasta el 31 de diciembre del 2016. Se incluyeron solo las pacientes mayores de 14 años, vivas, diagnosticadas y residentes en el municipio. La muestra estuvo constituida por 99 casos. La fuente de información se obtuvo de las historias clínicas de la Consulta Municipal especializada para la atención a pacientes con VIH/sida del municipio Boyeros. Resultados: Las tasas de incidencia muestran tendencia ascendente. El 49,5 por ciento se diagnostican con edades entre 15 y 29 años. Predominan las mujeres blancas en 40 por ciento, con nivel de escolaridad secundaria básica (43 por ciento). Un 19 por ciento se hizo el diagnostico como gestante y más de 50 por ciento no declararon vínculo laboral estable. El diagnóstico tardío se presentó en 43 por ciento y a edades mayores. El último conteo de T-CD4 fue mayor de 350 células/mm3 en más de 50 por ciento. El 92,9 por ciento de los casos tienen indicado TARV. Conclusiones: La población femenina con VIH del municipio Boyeros es predominantemente joven, con nivel de escolaridad básica y sin vínculo laboral. Se mantienen casos de diagnóstico tardío y las cifras de T-CD4 muestran valores adecuados en la mayoría de los casos(AU)

Introduction: Women are one of the most vulnerable groups affected by HIV during the last years. Objective: To determine the clinical and epidemiological characteristics of women with HIV in Boyeros municipality. Material and Methods: A descriptive retrospective research was conducted in female HIV patients in Boyeros municipality from 1986 to December 31, 2016. Only alive women older than 14 years living in the aforementioned municipality who were previously diagnosed with HIV were included in the study. The sample was composed of 99 cases. The information was obtained from the clinical records of the Municipal Consultation where specialized care is given to patients with HIV/AIDS. Results: The incidence rates of HIV infection in women showed a rising trend. Also, 49,5 percent of women infected with HIV were between 15 and 29 years of age. There was a prevalence of whites (40 percent) as well as women with secondary levels of education (43 percent). The diagnosis was also made in pregnant women, representing the 19 percent. More than 50 percent of them declared not to have steady jobs. Late diagnosis was identified in 43 percent of women in older ages. The latest T-CD4 count was higher than 350 cells/mm3 in more than 50 percent of them. ART was indicated in 92,9 percent of the cases. Conclusions: The female population infected with HIV in Boyeros municipality is mainly young; a lot of them have basic educational levels and do not have an employment contract. Late diagnosis of HIV infection continues to be identified. T-CD4 cell counts show adequate values in most of the cases(AU)

Asociación entre los niveles de linfocitos T CD4 y lesiones bucales de portadores del VIH/sida / Association between CD4 T lymphocyte levels and oral lesions in HIV/AIDS patients

Introducción: Las enfermedades de la cavidad bucal en los pacientes con VIH/sida pueden verse agravadas dependiendo de la respuesta inmunitaria del paciente y los niveles de linfocitos. Objetivo: Relacionar los niveles de linfocitos T CD4 y las principales lesiones bucales en pacientes con el VIH/sida del Hospital Nacional Hipólito Unanue (Lima, Perú), durante el 2018. Métodos: Se realizó un estudio analítico y de corte transversal, entre julio y octubre del 2018, en 65 pacientes hospitalizados, a los cuales se realizó un examen clínico de la cavidad bucal. Se evaluó la presencia de manifestaciones bucales asociadas al VIH/sida; también se clasificó el nivel de linfocitos T CD4 en tres categorías (> 500 cel/mm3, entre 200-500 cel/mm3 y < 200 cel/mm3). Resultados: Un 70,8 por ciento de los pacientes no se encontraba con tratamiento antirretroviral al momento del examen. El nivel promedio de linfocitos T CD4 fue 237,65 cel/mm3, con mayor prevalencia en mujeres. El 56,9 por ciento de los pacientes presentaron lesiones bucales, el sexo masculino fue el más afectado (91 por ciento). La lesión más frecuente fue la candidiasis bucal (44,6 por ciento) y la categoría que presentó mayor frecuencia de lesiones bucales fue la < 200 cel/mm3 (38,5 por ciento; p < 0,05). Conclusiones: El sexo masculino presentó la mayor cantidad de lesiones bucales asociadas a bajos niveles de linfocitos T CD4. La mayor parte de lesiones bucales se presentaron en un nivel de linfocitos T CD4 < 200 cel/mm3. La candidiasis bucal fue la lesión que más se evidenció al momento de realizar el examen clínico(AU)

Introduction: Oral diseases may be aggravated in HIV/AIDS patients depending on their immune response and lymphocyte levels. Objective: Describe the relationship between CD4 T lymphocyte levels and the main oral lesions in HIV/AIDS patients from Hipólito Unanue National Hospital in Lima, Peru, during the year 2018. Methods: An analytical cross-sectional study was conducted of 65 hospitalized patients from July to October 2018. The patients underwent oral clinical examination. Evaluation was performed of the presence of HIV/AIDS-related oral manifestations, and CD4 T lymphocyte levels were classified into three categories: > 500 cell/mm3, 200-500 cell/mm3 and < 200 cell/lmm3. Results: Of the total patients studied, 70.8 percent were not under antiretroviral treatment at the moment of the examination. Average CD4 T lymphocyte level was 237.65 cell/mm3, with higher results among women. 56.9 percent of the patients had oral lesions. Males were more commonly affected (91 percent). The most frequent lesion type was oral candidiasis (44.6 percent), whereas the category presenting the highest frequency of oral lesions was < 200 cell/mm3 (38.5 percent; p < 0.05). Conclusions: Male patients presented the largest number of oral lesions associated to low CD4 T lymphocyte levels. Most of the oral lesions were found at a CD4 T lymphocyte level < 200 cell/mm3. Oral candidiasis was the lesion most commonly found by the clinical examination(AU)

Criptococosis y linfocitopenia T CD4 idiopática: Reporte de un caso / Cryptococcosis and idiopathic CD4 T lymphocytopenia: A case report

Resumen La linfocitopenia T CD4 idiopática (LCI) es un síndrome clínico inusual que se caracteriza por un déficit de células T CD4+ circulantes en ausencia de infección por VIH u otra condición de inmunosupresión. Los pacientes con dicha enfermedad pueden presentarse asintomáticos o con infecciones oportunistas, las más frecuentes son por criptococo, micobacterias o virales como herpes zoster. Presentamos el caso de un hombre de 32 años, sin antecedentes, en quien se descartó infección por retrovirus, con recuento de linfocitos T CD4+ menor a 300 células/m3; se diagnosticó LCI posterior al diagnóstico de criptococomas cerebrales mediante hallazgos imagenológicos los cuales fueron congruentes con estudios microbiológicos.

Summary Idiopathic CD4 T lymphocytopenia (ICL) is an unusual clinical syndrome characterized by a deficit of circulating CD4 + T cells in the absence of HIV infection or another immunosuppression condition. Patients with this disease may present asymptomatic or with opportunistic infections, the most frequent are cryptococcus, mycobacteria or viral such as herpes zoster. We present a case of a 32-year-old man with no prior disease, in whom retrovirus infection was discarded, with CD4 + T lymphocyte count less than 300 cells/m3; ICL was diagnosed after the diagnosis of brain cryptococomas by imaging findings which were consistent with microbiological studies.

Human follicular helper T lymphocytes critical players in antibody responses / Linfócitos T auxiliares foliculares humanos: células essenciais para a resposta de anticorpos

ABSTRACT Follicular helper T lymphocytes are a subpopulation of CD4+ T lymphocytes initially identified in germinal centers of follicles found in secondary lymphoid organs. The primary function of follicular helper T lymphocytes is to help B lymphocytes' antibody production. Changing of antibody class and affinity, B cell differentiation and memory generation depend on cooperation between follicular helper T lymphocytes and B cells. In blood, follicular helper T lymphocytes are called circulating follicular helper T lymphocytes. They are considered to have specificities similar to those developed in the secondary lymphoid organs. The phenotype of human follicular helper T lymphocytes is given by simultaneous expression of the markers CXCR5, Bcl-6, CD40L, PD-1, and ICOS. In germinal centers, follicular helper T lymphocytes synthesize interleukin 21 as predominant cytokine. In blood, subpopulations of circulating follicular helper T lymphocytes can be recognized, with different expressions of the classical follicular helper T lymphocytes markers and, in addition, can express other markers such as CXCR3 and CCR6. Presently, there is great interest in follicular helper T lymphocytes and circulating follicular helper T lymphocytes in vaccination studies as indicators of immunization efficacy. In addition, follicular helper T lymphocytes are investigated as possible markers of activity in many diseases and potential therapeutic intervention. This short review describes aspects of immunobiology and quantification of follicular helper T lymphocytes and circulating follicular helper T lymphocytes, and presents a few examples of related findings in systemic lupus erythematosus, rheumatoid arthritis, HIV infection and vaccination.

RESUMO Linfócitos T auxiliares foliculares são uma subpopulação de linfócitos T CD4+ identificada inicialmente nos centros germinativos dos folículos dos órgãos linfoides secundários. Sua função primordial é auxiliar os linfócitos B na produção de anticorpos. A mudança de classe e de afinidade dos anticorpos, a diferenciação das células B e a geração de memória dependem da cooperação entre os linfócitos T auxiliares foliculares e as células B. No sangue, recebem o nome de linfócitos T auxiliares circulantes. Considera-se que possuem especificidades semelhantes às desenvolvidas nos órgãos linfoides secundários. O fenótipo dos linfócitos T auxiliares humanos é dado pela expressão conjunta dos marcadores CXCR5, Bcl-6, CD40L, PD-1 e ICOS. Nos folículos, linfócitos T auxiliares sintetizam a interleucina 21 como citocina predominante. No sangue, são descritas várias subpopulações de linfócitos T auxiliares circulantes com expressões variadas dos marcadores clássicos de linfócitos T auxiliares, além de poderem agregar outros, como CXCR3 e CCR6. Existe um enorme interesse no estudo de linfócitos T auxiliares e linfócitos T auxiliares circulantes, para a avaliação de eficácia de vacinação. São também investigados como possíveis marcadores de atividade em muitas doenças e potenciais intervenções terapêuticas. Esta breve revisão descreve aspectos da imunobiologia e da quantificação de linfócitos T auxiliares humanos e linfócitos T auxiliares circulantes, além de apresentar alguns achados relacionados em lúpus eritematoso sistêmico, artrite reumatoide, infecção por HIV e vacinação.

Predicción temporal de CD4+ en 80 pacientes con manejo antirretroviral a partir de valores de leucocitos / CD4+ temporal prediction in 80 patients with antiretroviral management from leukocyte counts

Objetivo: establecer una metodología predictiva de aplicación clínica de recuentos de CD4+ en rangos de interés clínico a partir del recuento absoluto de leucocitos. Metodología: a partir de los valores secuenciales de leucocitos y linfocitos CD4+ de 9 pacientes, se observaron patrones matemáticos que posteriormente fueron aplicados en un estudio ciego con 71 casos para confirmar su capacidad predictiva, midiendo porcentajes de especificidad y sensibilidad. Resultados: se determinaron cinco patrones matemáticos que predicen en el 99% de los casos los distintos recuentos de CD4+ a partir de recuentos de leucocitos con valores de especificidad y sensibilidad del 99%. Conclusiones: los patrones matemáticos encontrados entre recuento de leucocitos y CD4+ sugieren que este fenómeno prácticamente es determinista.

Objective: To establish a predictive methodology of CD4+ counts for clinical application in ranges of clinical interest based on the absolute leukocyte count. Methodology: From sequential values of leukocytes and CD4+ lymphocytes of nine patients, mathematical patterns were observed and applied in a blind study with 71 cases to confirm their predictive capacity, measuring percentages of specificity and sensitivity. Results: Five mathematical patterns were determined that predict 99% of the cases in which CD4+ counts are obtained from leukocyte counts with specificity and sensitivity values of 99%. Conclusions: The mathematical patterns found between leukocytes and CD4 counts suggest that this phenomenon is practically deterministic.

Caracterización de las manifestaciones otorrinolaringológicas en pacientes con infección por VIH/Sida en la ciudad de Cartagena / Characterization of the otorrinolaringological manifestations in patients with HIV/AIDS infection in the city of Cartagena

Introducción: en Colombia, la incidencia por virus de inmunodeficiencia humana (VIH) ha ido en aumento; la ciudad de Cartagena tiene una de las más altas del país. Las manifestaciones otorrinolaringológicas en personas con VIH se estiman entre un 20%-80%, lo que genera un gran impacto en la calidad de vida. Objetivo: determinar las características epidemiológicas y las manifestaciones otorrinolaringológicas en un grupo de personas con VIH/Sida de la ciudad de Cartagena. Metodología: diseño observacional descriptivo de corte transversal y prospectivo. Se recolectó información de pacientes con VIH de la ciudad de Cartagena, que asistieron a dos centros médicos. Se les aplicó un cuestionario para obtener datos epidemiológicos, signos y síntomas otorrinolaringológicos, así como un examen físico otorrinolaringológico completo. Resultados: se incluyeron 150 pacientes en el estudio, con una media de edad de 31 años, 59,3% del género masculino y 40,7% del femenino. El antecedente patológico no otorrinolaringológico más frecuente fue la coinfección por sífilis en un 10%; el otorrinolaringológico fue la sinusitis y la candidiasis oral, cada uno con un 3,3%. El 73% de los pacientes manifestó alteración otorrinolaringológica en el momento de la evaluación. Las más frecuentes fueron las otológicas, con el 39,9% de los pacientes. Además, se observó una relación estadísticamente significativa entre los conteos de CD4 y hallazgos como disfonía en laringe (p = 0,045). Conclusiones: las manifestaciones otológicas fueron las más frecuentes en nuestro medio y se encontró una relación entre el conteo de CD4 y las manifestaciones laríngeas de la enfermedad.

Introduction: In Colombia, the incidence of the disease has been increasing and Cartagena has the highest numbers of the country. Otorhinolaryngological manifestations in people with HIV/AIDS are estimated between 20%-80% generating a great impact on quality of life. Objective: To determine the epidemiological characteristics and otorhinolaryngological manifestations in a group of people with HIV / AIDS in the city of Cartagena. Methodology: Observational, descriptive, cross-sectional and prospective design. Information was collected from patients with HIV from the city of Cartagena who attended 2 medical centers, a questionnaire was applied to obtain epidemiological data, otorhinolaryngological signs and symptoms, as well as a complete otorhinolaryngological physical examination. Results: 150 patients were included in the study, with a mean age of 31 years, 59.3% male and 40.7% female. The most frequent non-otorhinolaryngological pathological antecedent was syphilis coinfection in 10% and otorhinolaryngological, sinusitis and oral candidiasis each with 3.3%. 73% of the patients at the time of the evaluation manifested otorhinolaryngological alteration, the otological ones being the most frequent with 39.9% of the patients. Furthermore, a significant relationship was observed between CD4 counts and findings such as laryngeal dysphonia (p = 0.045). Conclusions: The otological manifestations were the most frequent in our environment and a relationship was found between the CD4 count and the laryngeal manifestations of the disease.

Aspectos clínicos y de laboratorio en pacientes con diagnóstico tardío de SIDA / Clinical and laboratory findings in patients with late diagnosis of AIDS

RESUMEN Introducción: El retraso diagnóstico de la infección por SIDA constituye un problema de gran magnitud con importantes repercusiones para los propios infectados y para la sociedad en general. Objetivos: Caracterizar a los pacientes con diagnóstico tardío de infección por VIH y su evolución a los 6 meses del diagnóstico. Material y Métodos: Se realizó un estudio longitudinal de corte prospectivo que incluyó 248 casos con diagnóstico positivo de infección por VIH durante su ingreso o en la consulta de infectología del Instituto de Medicina Tropical "Pedro Kourí" desde enero de 2015 hasta diciembre de 2016, los que se dividieron en dos grupos de comparación, según diagnóstico tardío (n=79) o no (n=169) de la enfermedad. Resultados: La edad avanzada y el sexo masculino fueron factores relacionados con el diagnóstico tardío de la infección por VIH. La fiebre (31,7%) y los síntomas respiratorios (20,3%) fueron las formas más frecuentes de presentación, mientras que la neumonía por Pneumocystis jirovecii fue la enfermedad con más incidencia en el momento del diagnóstico. La mitad de los pacientes se encontraban con inmunodepresión severa en el momento del diagnóstico. Los pacientes con diagnóstico tardío mostraron una supervivencia significativamente menor a los 6 meses del diagnóstico en comparación con los pacientes con diagnóstico precoz. La carga viral y el nivel de linfocitos CD4 fueron parámetros de laboratorio con un alto valor predictivo de mortalidad. Conclusiones: El diagnóstico tardío de infección por VIH conlleva un alto riesgo de mortalidad, mayor en aquellos con afectación de la carga viral y el nivel de linfocitos T CD4+.

ABSTRACT Introduction: Late diagnosis of HIV is a major problem with important consequences for the people infected with this virus and the society in general. Objectives: To characterize patients with late diagnosis of HIV infection and their evolution six months after diagnosis. Material and Methods: We conducted a prospective longitudinal study which included 248 cases with positive diagnosis of HIV infection during admission at the Pedro Kourí Tropical Medicine Institute between January 2015 and December 2016. They were divided into two comparison groups which included patients with late diagnosis (n=79) and those with no late diagnosis (n=169) of the disease. Results: Advanced age and male sex were factors related to the late diagnosis of HIV infection. Fever (31.7%) and respiratory symptoms (20.3%) were the most frequent forms of presentation, whereas Pneumocystis jirovecii pneumonia was the disease with the highest incidence at the time of diagnosis. Half of the patients were found to have severe immunosuppression at the time of diagnosis. Patients with late diagnosis showed a significantly diminished survival six months after being diagnosed compared with those patients with early diagnosis. Viral load and CD4+ T count were laboratory parameters with a high predictive value of mortality. Conclusions: Late diagnosis of HIV leads to a high risk of mortality, which is higher in those with affectation of the viral load and low CD4+ T cell count.

Características clínicas de pacientes con Virus de Inmunodeficiencia Humana. Hospital General Docente "Enrique Cabrera" / Clinical characteristics of patients with Human Immunodeficiency Virus. Enrique Cabrera General Teaching Hospital

RESUMEN Introducción: La atención de pacientes con VIH se realiza actualmente en Cuba de forma descentralizada; cada vez es mayor el número de casos ingresados en hospitales generales. Objetivo: Determinar características clínicas de pacientes con VIH ingresados en el Hospital General Docente "Enrique Cabrera". Material y Métodos: Se realizó una investigación descriptiva retrospectiva de pacientes con VIH ingresados en el Hospital General Docente "Enrique Cabrera" en el período comprendido del 1RO de enero de 2007 hasta 31 de diciembre de 2013. La muestra estuvo constituida por 86 casos. Resultados: El número de pacientes se incrementó por años, los casos masculinos constituyeron 79%, los grupos de edad más frecuentes 21 a 30 y 41 a 50 años. Las adenopatías generalizadas fue el hallazgo al examen físico más frecuente. Predominó el conteo de T CD4 menor de 200 células/mm3. Las patologías respiratorias constituyeron 25% de las causas de ingreso. Se realizó el diagnostico hospitalario en 36% de los casos de los cuales el 77% eran diagnósticos tardíos de la enfermedad. Conclusiones: Los pacientes con VIH constituyen una población joven que ingresa cada vez más a nivel secundario hospitalario, con características propias de esta enfermedad y patologías que ponen en riesgo su vida.

ABSTRACT Introduction: The care of patients with Human Immunodeficiency Virus is currently carried out in a decentralized way in Cuba. The number of patients with HIV admitted to general hospitals is increasing. Objective: To determine the clinical characteristics of patients with HIV admitted to Enrique Cabrera General Teaching Hospital. Material and Methods: A descriptive retrospective study was carried out in patients with HIV admitted to Enrique Cabrera General Teaching Hospital from January 1st, 2007 to December 31st, 2013. The sample consisted of 86 cases. Results: The number of patients increased per year, male cases constituted 79 %, the most frequent age groups were from 21 to 30 years and from 41 to 50 years. Generalized adenopathies were the most frequent findings on physical examination. CD4 T- cell counts below 200 cells/mm3 predominated in the study. Respiratory pathologies constituted 25 % of the causes of admission. Hospital diagnosis was carried out in 36 % of the cases, 77 % of which had late diagnoses of HIV. Conclusions: HIV patients constitute a young population that is admitted more and more to secondary level hospitals. They present own characteristics of the disease and pathologies that put their lives at risk.

Mecanismos epigenéticos en la plasticidad y flexibilidad de los linfocitos T CD4 / Epigenetic mechanisms in plasticity and flexibility of the CD4 T cells

Watson y Crick descifraron en 1953 la estructura del ácido desoxirribonucleico (ADN), a partir de ese momento se produjo una revolución en el campo de la Biología Molecular y la Genética, cuyo colofón fue la publicación de la primera versión del genoma humano en el año 2001. Sin embargo, esto solo fue el principio de una nueva revolución de la ciencia moderna: la epigenética. Una forma de regular el patrón de expresión génica sería modificar la estructura de la cromatina a través de diversos mecanismos epigenéticos. Los linfocitos T CD4, no están alejados de estos mecanismos, donde su diferenciación la inducen citocinas producidas por células presentadoras de antígeno (APC) y los propios linfocitos T. El programa de diferenciación sería gobernado por factores de transcripción que promueven la expresión de genes de citocinas en los linfocitos T y cambios epigenéticos en los loci génicos de citocinas, que pueden asociarse al compromiso estable en un subgrupo particular. La flexibilidad o la estabilidad de las células T pudieran ser representadas como una serie de transiciones menos estables para estados más estables, que incluyen los mecanismos de metilación del ADN, modificaciones de las histonas y la presencia de los micro ARN (ácido ribonucleico). Todo esto refuerza o desestabiliza la expresión de los factores para la estabilidad y plasticidad de estas células. El entendimiento de estos factores podría revolucionar el enfoque de la biología evolutiva y del desarrollo; y su aplicación en las ciencias médicas(AU)

Watson and Crick deciphered the physical structure of the deoxyribonucleic acid (DNA) in 1953. From that moment on there was a revolution in the field of Molecular Biology and Genetics, whose culmination was the publication of the first version of the human genome in the year 2001. However, this was only the beginning of a new revolution in modern science: Epigenetics. One way to regulate the pattern of gene expression would be to modify the structure of chromatin through various epigenetic mechanisms. CD4 T lymphocytes (CD4 cells) are not far from these mechanisms, where its differentiation is induced by the cytokines produced by antigen-presenting cells (APC) and the T lymphocytes themselves. The differentiation program would be governed by transcription factors that promote the expression of cytokine genes in T lymphocytes and epigenetic changes in gene loci of cytokines, which may be associated with stable commitment in a particular subgroup..The flexibility or stability of T cells could be represented as a series of less stable transitions for more stable states, including the mechanisms of DNA methylation, histone modifications and the presence of micro RNA (ribonucleic acid). All this reinforces or destabilizes the expression of the factors for the stability and plasticity of these cells. Understanding these factors could revolutionize the approach of evolutionary biology and development, as well as its application in the medical sciences(AU)

Unbalanced expression of aryl hydrocarbon receptor in peripheral blood CCR6+CD4+ and CD4+CD25+T cells of rheumatoid arthritis / Expressão não equilibrada do receptor de hidrocarboneto arílico nos linfócitos T CCR6+ CD4+ e CD4+ CD25+ do sangue periférico na artrite reumatoide

ABSTRACT Objective: The goal of this study was to analyze the role of aryl hydrocarbon receptor in peripheral blood CCR6+CD4+ and CD4+CD25+T cells of patients with rheumatoid arthritis. Methods: Flow cytometry was applied to determine the proportion of AhR positive cells in CCR6+CD4+T, CD4+CD25+T and peripheral blood peripheral mononuclear cells from each subject. AhR mRNA and CYP1A1 mRNA relative expression levels were tested by real-time PCR. Results: The percentage of AhR positive cells in peripheral blood mononuclear cells was higher in RA group than that in healthy cases [(35.23 ± 10.71)% vs. (18.83 ± 7.32)%, p < 0.01]. The expression levels of AhR and CYP1A1 were both increased in patients with RA while compared to controls [(3.71 ± 1.63) vs. (2.00 ± 1.27), p = 0.002; (2.62 ± 2.08) vs. (0.62 ± 0.29), p < 0.01, respectively]. In RA patients, the percentage of AhR positive cells in CD4+CD25+T cells was significantly lower than that from controls [17.90 (6.10 ± 80.10)% vs. (52.49 ± 19.18)%, p < 0.01]; In healthy controls, the percentage of AhR positive cells in CD4+CD25+T cells was significantly higher than that in CCR6+CD4+T cells, and was also significantly higher than that in PBMCs [(52.49 ± 19.18)% vs. (23.18 ± 5.62)% vs. (18.06 ± 7.80)%, X 2 = 24.03, p < 0.01]; in RA patients, the percentage of AhR positive cells in CCR6+CD4+T cells was significantly increased than that in CD4+CD25+T cells and PBMCs [(46.02 ± 14.68)% vs. 17.90 (6.10 ± 80.10)% vs. (34.22 ± 10.33)%, X 2 = 38.29, p < 0.01]; Nevertheless, no statistically significant relationship was found between clinical data and AhR positive cells in CCR6+CD4+T and CD4+CD25+T cells. Conclusion: AhR may participate in the pathological progress of RA by controlling the differentiation of Th17 and Treg cells in peripheral blood.

RESUMO Objetivo: Analisar o papel do receptor de hidrocarboneto arílico (AhR) nos linfócitos T CCR6+ CD4+ e CD4+ CD25+ no sangue periférico de pacientes com artrite reumatoide (AR). Métodos: Foi aplicada citometria de fluxo para determinar a proporção de células AhR positivas em linfócitos CCR6+ CD4+ e CD4+ CD25+ do sangue periférico e células mononucleares periféricas de cada indivíduo. Os níveis de expressão relativa de ácido ribonucleico mensageiro (do inglês ribonucleic acid, RNAm,) de AhR e RNAm de enzima de primeiro estágio essencial para o AhR (CYP1A1) foram testados por reação em cadeia de polimerase (do inglês polymerase chain reaction, PCR,) em tempo real. Resultados: A percentagem de células AhR positivas nas células mononucleares do sangue periférico foi maior no grupo com AR do que nos indivíduos saudáveis [(35,23 ± 10,71)% vs. (18,83 ± 7,32)%, (p < 0,01)]. Os níveis de expressão de AhR e CYP1A1 estavam aumentados em pacientes com AR quando comparados com os controles [(3,71 ± 1,63) vs. (2,00 ± 1,27), p = 0,002; (2,62 ± 2,08) vs. (0,62 ± 0,29), p < 0,01, respectivamente]. Em pacientes com AR, a percentagem de células AhR positivas nos linfócitos T CD4+ CD25+ foi significativamente inferior à dos controles [17,90 (6,10 ± 80,10)]% vs. (52,49 ± 19,18)%, p < 0,01]; em controles saudáveis, a percentagem de células AhR positivas nos linfócitos T CD4+ CD25+ foi significativamente mais elevada do que nos linfócitos T CCR6+ CD4+ e também foi significativamente maior do que nas células mononucleares do sangue periférico (do inglês peripheral blood mononuclear cells, PBMC,) [(52,49 ± 19,18)% vs. (23,18 ± 5,62)% vs. (18,06 ± 7,80)%, X 2 = 24,03, p < 0,01]; em pacientes com AR, a percentagem de células AHR positivas nos linfócitos T CCR6+ CD4+ era significativamente maior em comparação com os linfócitos T CD4+ CD25+ e PBMC (46,02 ± 14,68)% vs. [17,90 (6,10 ± 80.10)]% vs. (34,22 ± 10,33)%, X2 = 38,29, p < 0,01]; no entanto, não foi encontrada correlação estatisticamente significativa entre os dados clínicos e células AhR positivas em linfócitos T CCR6+ CD4+ e CD4+ CD25+. Conclusão: O Ahr pode participar do progresso patológico da AR ao controlar a diferenciação de linfócitos Th17 e Treg no sangue periférico.

Parámetros hematológicos y recuento de células T-CD4+ en pacientes VIH con síntomas digestivos en Bucaramanga, Colombia / Haematological parameters and T-CD4+ cells count in HIV patients with digestive symptoms in Bucaramanga, Colombia

Introducción: La anemia, las citopenias y la sintomatología digestiva son hallazgos frecuentes en la población con infección por el virus de la inmunodeficiencia humana, VIH. Objetivo: Describir los parámetros hematológicos y el recuento de linfocitos T- CD4 en pacientes con VIH hospitalizados por síntomas digestivos a los que se realizaron estudios endoscópicos. Métodos: Se realizó un estudio observacional y descriptivo en 54 pacientes con VIH que se consultaron por síntomas digestivos y que requirieron procedimientos endoscópicos digestivos altos o bajos durante el año 2014 en un Hospital Universitario de tercer nivel en Bucaramanga, Colombia.Se tomaron datos sociodemográficos, se indagó sobre el uso de terapia antirretroviral altamente efectiva (TARAE), se registró la sintomatología digestiva, el tipo de procedimiento realizado, los datos del hemograma, el recuento de linfocitos T-CD4, la realización de mielograma, biopsia de médula ósea y la mortalidaddurante la estancia hospitalaria. Resultados: La prevalencia de anemia, leucopenia y trombocitopenia fue de 83.3 por ciento, 37 por ciento y 20.3 por ciento, respectivamente. Se encontró bicitopenia y pancitopenia en 25.9 por ciento y 14.8 por ciento.De los pacientes con bicitopenia y pancitopenia se les realizó estudio de médula ósea a 57.1 por ciento y 87.5 por ciento, respectivamente. Se encontró una tendencia de conteo de linfocitos T-CD4 menor en aquellos pacientes con anemia. Conclusiones: Las alteraciones hematológicas son frecuentes en pacientes con VIH y síntomas digestivos, con alta prevalencia de anemia. Los recuentos de linfocitos T-CD4 encontrados fueron notoriamente bajos(AU)

Introduction: Anemia, cytopenias and gastrointestinal symptoms are common findings in the population that are infected by the HIV. Objective: To describe hematological parameters and the T-CD4 cell counts in HIVpatients hospitalized for gastrointestinal symptoms that were taken to endoscopy. Methods: A descriptive study in 54 HIV patients who consulted for digestive symptoms and requiring high or low digestive endoscopy during 2014 in a third level University Hospital of Bucaramanga, Colombiawas carried out. Sociodemographicdata were questioned, it was the use of highly active antiretroviral therapy (HAART), it was registered digestive symptoms, type of procedure, data from blood count, T-CD4 count, myelogram, bone marrow biopsy and mortality during hospital stay were recorded. Results: The prevalence of anemia, leucopenia and thrombocytopenia were 83.3 percent, 37 percent and 20.3 percent, respectively. Bicytopenia and pancytopenia were found in 25.9 percent and 14.8 percent. Bicytopenia patients with pancytopenia and underwent bone marrow study to 57.1 percent and 87.5 percent, respectively. A trend of lower T-CD4 lymphocyte count was found in patients with anemia. Conclusions: Hematological disorders are common in patients with HIV and digestive symptoms, with high prevalence of anemia. T-CD4 counts were found notoriously low(AU)

Diagnóstico tardío y enfermedad avanzada de VIH en pacientes adultos en un hospital de la seguridad social de Perú / Late diagnosis and advanced disease of HIV in adult patients from a Peruvian social security hospital

Background: The delayed HIV diagnosis with CD4 count is a public health problem. Objective: To determinate the frequency and the factors associated with a late diagnosis (LD) and to an advanced disease (AD) of HIV infection in patients from a Peruvian hospital. Materials and Methods: Analytic and transversal study of secondary data from adult’s patients diagnostic with HIV during the period 1999-2012. Results and Conclusions: From 1,714 patients, 82.6% (1416) had LD, and 64.5% (1106) were diagnostic with AD. Were associated with them: being of male sex (LD: 17% and AD: 28%; p < 0.001), have between 41-60 years (LD: 9% and AD: 15%; p < 0.001), have more than 60 years old (LD: 14% and AD: 23%; p < 0.003), being bisexual (LD: 18% and AD: 43%; p < 0.001), drugs abusers (LD: 24% and AD: 64%; p < 0.001). Being heterosexual was associated with less frequency (LD: 12% and AD: 19%; p < 0.001). The frequency of LD and AD of HIV are high and factors associated with them were male sex, being 40 years old or more, and belonging to sexually risk groups (homosexuals and bisexuals) and drugs abusers.

Introducción: La demora en el diagnóstico de la infección por VIH mediante el recuento de LT CD4 es un problema de salud pública. Objetivo: Determinar la frecuencia y factores asociados al diagnóstico tardío (DT) y enfermedad avanzada (EA) de infección por VIH en pacientes atendidos en un hospital peruano. Materiales y Métodos: Estudio transversal analítico de datos secundarios de pacientes adultos con diagnóstico de infección por VIH atendidos durante el período 1999-2012. Resultados y Discusión: De 1.714 pacientes, 82,6% (1.416) tuvo DT y 64,5% (1.106) EA. Estuvieron asociados con una mayor frecuencia: el sexo masculino (DT: 17% y EA: 28%; p < 0,001), edad entre 41-60 años (DT: 9% y EA: 15%; p < 0,001), edad mayor a 60 años (DT: 14% y EA: 23%; p < 0,003), orientación bisexual (DT: 18% y EA: 43%; p < 0,001), orientación homosexual (DT: 8%; p < 0,001) y usuarios de drogas (DT: 24% y EA: 64%; p < 0,001). El ser heterosexual estuvo asociado a una menor frecuencia (DT: 12% y EA: 19%; p < 0,001). Conclusión: Se encontró una alta la frecuencia de DT y la EA, y los factores asociados a éstas fueron: sexo masculino, grupos sobre 40 años de edad, grupos sexuales de riesgo (homosexuales y bisexuales) y consumidores de drogas.

Perfil de pacientes HIV-AIDS que evoluíram ao óbito em um hospital de referência em Belém-Pa / Profileof HIV-AIDS patients who died at an university hospital in Belém-Pa

Objetivo: analisar o perfil de pacientes com HIV-AIDS que evoluíram ao óbito em um hospital de referência emBelém-PA.Método:estudo transversal, incluindo 142 prontuários de pacientes com sorologia positiva para o vírusHIV internados no Hospital Universitário João de Barros Barreto que evoluíram ao óbito no período de janeirode 2011 a janeiro de 2012. Em 64 pacientes foi possível a análise da contagem dos linfócitos TCD4 no banco dedados do Sistema de Controle de Exames Laboratoriais da Rede Nacional de contagem de linfócitos CD4+/CD8+ eCarga viral (SISCEL). Resultados: operfil sócio demográfico foi constituído principalmente por uma população dehomens (71,1%), com faixa etária de 30 a 39 anos (39,4%), solteiros (67,6%), pardos(79.6%) e procedentes de Belém(59,2%). O sistema mais acometido na admissão e no óbito foi o respiratório com 71,1% e 42,% respectivamente,apresentandooutras pneumonias que não por Pneumocistis carinii (29,6%) e tuberculose pulmonar (24,6%) comomais frequentes de acordo com declaração de óbito contida no prontuário do paciente. A última internação teve tempopredominante menor que 7dias (26.1%).A correlação entre a contagem de linfócitos CD4 a as infecções oportunistas,verificou-se que a toxoplasmose cerebral apresentou a maior média de CD4 175,5 células/mm³.Conclusão:A amostrapredominante foi constituída por homens, na faixa etária de 30 a 39 anos, solteiros, cor parda e procedente domunicípio de Belém.

Objective: To analyze the profile of HIV-AIDS patients who died in a referral hospital in Belém-PA. Method:cross-sectional study, including 142 patients with HIV, admitted to the University HospitalJoão de Barros Barreto,who died between January 2011 to January 2012. In the analysis of 64 patients, it was possible the count of TCD4lymphocytes in the Database System Laboratory Tests Control of the National Network lymphocyte count of CD4+ / CD8 + and viral load (SISCEL). Results: The socio-demographic profile was primarily a population of men(71.1%), age between 30 and 39 years (39.4%), single (67.6%), brown color(79.6%) and born inBelém (59.2%).The system most affected at admission and death was the respiratory system with 71.1% and 42% respectively, withpneumonia (29.6%) and pulmonary tuberculosis (24.6%) as the most frequent according to the death certificate inthe patient's record. The last hospitalization was less prevalent long as seven days (26.1%). The correlation betweenCD4 lymphocyte counts to opportunistic infections, it was found that a toxoplasmosebrain had the highest average175.5 CD4 cells / mm³. Conclusion: The predominant sample was incorporated by men, aged 30-39 years old, single,brown color and founded the city of Belém.

Enfermedades oportunistas en pacientes VIH/sida con debut de sida que reciben tratamiento antirretroviral / Opportunistic diseases observed in HIV/aids patients with onset of aids and antiretroviral treatment

INTRODUCCIÓN: el debut del sida es una forma de presentación de la enfermedad caracterizada por alteración del estado general, síndrome de desgaste, graves infecciones oportunistas, neoplasias y alteraciones neurológicas. El tratamiento con antirretrovirales ha aumentado la esperanza de vida de estos pacientes. OBJETIVOS: identificar las enfermedades oportunistas, asociadas a la condición clínica de los pacientes bajo estudio, y su relación con el conteo de linfocitos T CD4+ y la carga viral así como, evaluar la mortalidad en el grupo de pacientes estudiados y su relación con las enfermedades oportunistas. MÉTODOS: se realizó un estudio observacional prospectivo de corte transversal. El tamaño de la muestra estuvo condicionado al universo total de pacientes VIH/sida del servicio de Medicina del Instituto de Medicina Tropical "Pedro Kourí". La muestra (55 pacientes) se seleccionó, se tuvo en cuenta los sujetos que fueron diagnosticados con debut de sida y presentaron enfermedades oportunistas durante un año. RESULTADOS: las enfermedades oportunistas infecciosas como neurotoxoplasmosis 21,8 % y neumonía por Pneumocystis jirovecii 12,7 % fueron los eventos definitorios de sida predominantes. No hubo asociación estadística significativa, con el conteo bajo de linfocitos T CD4+ bajos y carga viral elevada. En los pacientes mayores de 50 años con más de una enfermedad oportunista el riesgo de morir fue 4,72 veces mayor que para el resto. CONCLUSIONES: las enfermedades oportunistas infecciosas como neurotoxoplasmosis y Pneumocystis jirovecii,fueron los eventos definitorios de sida predominantes. La mortalidad asociada a sida en los pacientes mayores de 50 años aumentó en los individuos que presentaron más de una enfermedad oportunista. Estos resultados son útiles para el diseño de estrategias de tratamiento que disminuyan la aparición de las enfermedades oportunistas y mejoren aun más, la supervivencia de los pacientes VIH/sida.

INTRODUCTION: onset of aids is a form of presentation of the disease that is characterized by altered general condition, wornout syndrome, serious opportunistic infections, neoplasias and neurological alterations. The antiretroviral treatment has increased the life expectancy of these patients. OBJECTIVES: to identify the opportunistic diseases associated to the clinical condition under study and their linking to the CD4+ T lymphocyte count and the viral load as well as to evaluate the mortality in the studied group and its relationship with opportunistic diseases. METHODS: prospective, observational and cross-sectional study of a sample of 55 patients. The size of the sample depended on the total universe of HIV/aids patients in the medicine service of "Pedro Kouri" Tropical Medicine Institute. The study took into account those subjects who were diagnosed with onset of aids and presented with opportunistic diseases during one year. RESULTS: infectious opportunistic diseases such as neurotoxoplasmosis (21.8 %) and pneumonia caused by Pneumocystis jirovecii (12.7 %) were the predominant defining events of aids. There was no statistically significant association with low CD4+ T lymphocyte count and high viral load. In patients over 50 years of age with more than one opportunistic disease, the risk of dying was 4.72 times higher than in the rest of the group. CONCLUSIONS: infectious opportunistic diseases as neurotoxoplasmosis and Pneumocystis jirovecii were the prevailing defining events of aids. Aids-associated mortality in patients aged over 50 years increased in individuals who presented more than one opportunistic disease. These results are useful for the design of treatment strategies that reduce the occurrence of opportunistic diseases and improve even more the survival of HIV/aids patients.

Depressão em pacientes HIV positivos: a realidade de um hospital português / Depression in HIV-positive patients: the reality of a Portuguese hospital

Objetivos: A depressão constitui a mais frequente perturbação psiquiátrica entre indivíduos infectados pelo HIV. Este trabalho pretende caracterizar a população de doentes HIV positivos da clínica de infectologia do Hospital de Joaquim Urbano do Porto quanto ao perfil de sintomas depressivos e verificar se estes se correlacionam com os parâmetros analíticos mais frequentemente avaliados no contexto da infecção por este vírus: carga viral do HIV, contagem e percentagem de linfócitos CD4+. Métodos: Foi realizado um estudo observacional descritivo e analítico. Os níveis de sintomas depressivos dos participantes foram avaliados com o Inventário Depressivo de Beck. Os antecedentes patológicos, psiquiátricos e os valores analíticos da carga viral, contagem e percentagem de CD4+ foram obtidos através de consulta aos respectivos processos clínicos. Resultados: Foi encontrada uma prevalência de 65,5% de sintomas depressivos, com uma percentagem considerável (32,7%) dos indivíduos apresentando sintomas graves. Não se verificaram associações entre os níveis de sintomas depressivos e a contagem de CD4+, percentagem de CD4+ ou carga viral. Foram, no entanto, demonstradas associações entre sintomas depressivos, toxicodependência e grau de escolaridade. Conclusões: A elevada prevalência de sintomas depressivos encontrada neste estudo reforça a importância da vigilância desse tipo de sintomatologia em indivíduos HIV positivos. O fato de não se terem verificado associações entre sintomas depressivos e os parâmetros analíticos avaliados está em conformidade com estudos anteriores.

Aims: Depression is the most common psychiatric disorder among people infected with HIV. This study aims to characterize the Hospital of Joaquim Urbano population of HIV-infected patients' profile regarding depressive symptoms and whether they correlate with the analytical parameters most frequently evaluated in the context of infection by this virus ­ HIV viral load, CD4+ count and CD4+ percentage. Methods: We conducted an observational descriptive and analytical study. The participants' level of depressive symptoms was assessed with the Beck Depression Inventory. The medical and psychiatric history and the analytical values of viral load, CD4+ count and CD4+ percentage were obtained by consulting the participants' clinical processes. Results: A prevalence of 65.5% in HIV-infected patients' depressive symptoms was found, with a considerable high percentage of subjects presenting with severe symptoms (32.7%). No associations between the depressive symptoms' levels and CD4+ count, CD4+ percentage or viral load were found. However, depressive symptoms were associated with substance abuse and education level. Conclusions: The high prevalence of depressive symptoms found in this study reinforces the importance of monitoring this type of symptoms in HIV-infected subjects. The fact that there have been no associations between depressive symptoms and the analytical parameters evaluated is in line with previous studies.

Nivel de autoestima y su relación con el valor absoluto de linfocitos TCD4 en pacientes que viven con VIH/SIDA / Level of self-esteem and its relation to the absolute value of TCD4 lymphocytes in patients living with HIV / AIDS

La cuantificación de las células TCD4 en pacientes que viven con VIH/SIDA es indicador de estado inmunológico. Factores como el estrés físico, psicológico, embarazo, entre otros, pueden disminuir su valor. Objetivo: Evaluar el nivel de autoestima y su relación con el valor absoluto de linfocitos T CD4. Metodos: Se realizó un estudio de casos, analítico del tipo correlacional. Para ello, se utilizó la técnica de la encuesta escrita como medio de recolección de datos en los pacientes atendidos en la "Unidad de Infectología del Hospital Universitario Dr. Ángel Larralde (HUAL)" durante el periodo marzo junio del 2015. Resultados: De los 100 pacientes, predominó el sexo masculino y se registró una edad promedio de 28,22 años ± 0,81 siendo más frecuente edades entre 18 y 29 años (65 casos). El tiempo de diagnóstico que predominó fue entre 1 y 5 años (58 casos). El nivel alto de autoestima prevaleció entre los pacientes del estadio 2 (20/38) y en estadio 1 (19/53). Entre los pacientes con 1 y 5 años de diagnóstico predominó el nivel de autoestima medio (27/58), y en los pacientes con menos de un año de diagnóstico predominó el nivel alto (9/20). El mayor promedio registrado de linfocitos TCD4 correspondió a aquellos pacientes con autoestima alta y el promedio más bajo se observó en aquellos pacientes con autoestima baja. Conclusiones: Hubo diferencia estadísticamente significativa entre el nivel de autoestima y el promedio de células TCD4; se encontró relación directa entre el nivel de autoestima y estadio de la enfermedad al mismo tiempo que se encontró relación directa entre el tiempo de diagnóstico y el nivel de autoestima(AU)

The number of CD4+ cells in patients living with HIV / AIDS is known as an indicator of immune status. Factors such as physical and psychological stress, pregnancy, among others, may decline the number of CD4. Objective: To assess the level of self- esteem and its relationship to the absolute value of TCD4 lymphocytes in patients living with HIV / AIDS. Methods: A case study, correlational and analytical was performed. A written survey technique was used as by a data collection questionnaire applied to the patients with AIDS attending the "Unidad de Infectología del Hospital Universitario Dr. Ángel Larralde (HUAL)" during the period from March to June 2015. Results: The sample was 100 patients, with a male the prevalent sex and an average age of 28.22 years ± 0.81, being more frequent between 18 and 29 years (65 cases). The predominant diagnosis time was between 1 and 5 years (58 cases). The high level of self-esteem prevailed among patients of stage 2 (20/38) and stage 3 (19/53). Among patients with 1 and 5 years of diagnosis, the medium level of self-esteem (27/58) was the predominant. Patients within a year of diagnosis registered high level of self-esteem (9/20). The highest average CD4 cells registered corresponded to those with high self-esteem and the lowest average was observed in patients with low self-esteem. Conclusions: There was a statistically significant difference between the level of self-esteem and the average of Lympochytes T CD4 cells and also a direct relationship between self-esteem, the stage of disease and between time of diagnosis and the level of self-esteem.(AU)