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1.
AIDS Behav ; 25(2): 562-570, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32876906

RESUMEN

The process of human immunodeficiency virus (HIV) diagnosis disclosure for vertically infected young people living with HIV has proven decisive for acceptance/adherence to treatment. Herein, we present a cross-sectional study aiming at evaluating how individual and network related variables are associated with reactions to HIV disclosure among them. We used the egocentric approach with a structured questionnaire applied to individuals aged 15-25 years in an HIV referral center in Rio de Janeiro, Brazil. Outcome variable referred to adoption or not of risk behavior after diagnostic disclosure, was classified as "good"/"bad" reactions. Results showed that, of the 80 study participants, 25% reported a "bad reaction" to diagnostic disclosure, an outcome that was more common for patients with at least one friend in their social support network (OR 4.81; 95%CI [1.05-22.07]). In conclusion, a "bad reaction" to HIV serological disclosure may be associated with inadequate structure of the individual's social support network.


RESUMEN: El proceso de divulgación del diagnóstico del virus de inmunodeficiencia humana (VIH) es decisivo para la aceptación/adhesión a tratamiento de los jóvenes infectados verticalmente que viven con VIH. Presentamos un estudio transversal con el objetivo de evaluar cómo variables individuales y de red están asociadas con reacciones a la divulgación del VIH entre ellos. Utilizamos el enfoque egocéntrico por medio de un cuestionario estructurado aplicado a personas de 15-25 años en un Centro de Referencia para VIH en Río de Janeiro, Brasil. La variable de resultado se refiere a la adopción o no de comportamiento de riesgo después de la divulgación del diagnóstico, clasificadas como reacciones "buena"/"mala". Los resultados mostraron que, de los 80 participantes del estudio, el 25% reportó una "mala reacción" a la divulgación diagnóstica. Este resultado fue más común en pacientes con al menos un amigo en su red de apoyo social (OR:4.81; IC95% [1.05-22.07]). Como conclusión, una "mala reacción" a la divulgación serológica del VIH puede estar asociada con una estructura inadecuada de la red de apoyo social del individuo.


Asunto(s)
Revelación , Infecciones por VIH , Adolescente , Adulto , Brasil , Niño , Estudios Transversales , Infecciones por VIH/diagnóstico , Humanos , Autorrevelación , Revelación de la Verdad , Adulto Joven
2.
AIDS Care ; 31(3): 314-317, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30189750

RESUMEN

Mother-to-child transmission (MTCT) is the main route of transmission for HIV among under 5 children in Brazil. National data indicate that missed opportunities for HIV prevention of MTCT are still common in antenatal care (ANC). We studied variables related to target process indicators in a cohort of HIV exposed children. We used data from 1996 to 2013 related to HIV exposed uninfected and HIV-infected children attended in an HIV reference hospital in Rio de Janeiro, Brazil. Data were collected from baseline questionnaires applied to all children followed-up in the hospital. Gestational and perinatal history were extracted from the mother's ANC card. Infants were categorized according to dates of first HIV care at the unit (1996-2000, 2001-2006 and 2007-2013). Distances between recorded addresses and the nearest maternity/hospital were measured by Euclidean distance, the shortest car route calculated in Google Maps and the route of the available bus line. Of the 599 children who fulfilled the inclusion criteria, 178 (29.7%) were HIV-infected. Approximately 70% of infants exposed to the virus from 1996-2000 were infected, dropping to 15.2% from 2001-2006 and rebounding to 30.1% from 2007-2013. Birth cohort was associated with ANC, and mothers from 2007-2013 had a lower chance of attending ANC (OR = 0.16; 95%CI 0.08-0.30). In addition, when the distance home-birthplace was higher than 9.5 km, there was a lower chance that the mother had attended ANC (OR = 0.35; 95%CI 0.18-0.68). Birth cohort was associated to HIV and ANC, and our data showed that a reduction of ANC might be related to rebound in HIV cases. There seems to have an association between larger distances from home to the birthplace and absence of ANC, which suggests that ANC was being performed in the tertiary units instead of in the primary care facilities as recommended.


Asunto(s)
Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Atención Prenatal/estadística & datos numéricos , Adulto , Instituciones de Atención Ambulatoria , Brasil , Estudios de Cohortes , Femenino , Infecciones por VIH/diagnóstico , Humanos , Recién Nacido , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Encuestas y Cuestionarios
3.
Vaccine ; 35(50): 7042-7048, 2017 12 15.
Artículo en Inglés | MEDLINE | ID: mdl-29100708

RESUMEN

We aimed to evaluate immunogenicity and adverse events (AEs) after a booster dose of Meningococcal C conjugated (MCC) vaccine in HIV-infected children and adolescents, who had a previous low seroconversion rate after priming with MCC, at a reference HIV-care center in Rio de Janeiro. METHODS: 2-18 years old HIV-infected subjects with CD4+ T-lymphocyte cell (CD4) ≥15%, without active infection or antibiotic use, were enrolled to receive 2 doses of conjugated meningococcal C oligosaccharide-CRM197 12-18 months apart. All patients were evaluated before and 1-2 months after immunization for seroprotection [defined as human serum bactericidal activity (hSBA) titer ≥1:4]. AEs were assessed at 20 min, 3 and 7 days after each dose. Factors independently associated with seroprotection were studied. RESULTS: 156 subjects were enrolled and 137 received a booster MCC dose. 55% were female, and median age was 12 years. Eight-nine percent were receiving combined antiretroviral therapy (cART) at the booster visit (median duration of 7.7 years), 59.9% had undetectable viral load (VL) at baseline, and 56.2% at the booster visit. Seroprotection was achieved in 78.8% (108/137) subjects, with a significantly higher GMT than after the priming dose (p < 0.01). Mild AEs were experienced after a second MCC dose (38%). In logistic regression, undetectable viral load at entry [odds ratio (OR) = 7.1, 95% confidence interval (95%CI): 2.14-23.37], and probably higher CD4 percent at the booster immunization visit (OR): 1.1, 95%CI: 1.01-1.17 were associated with seroprotection after a booster dose of MCC. CONCLUSION: A booster dose of MCC was safe and induced high seroprotection rate even 12-18 months after priming. MCC should be administered after maximum virologic suppression has been achieved. These results support the recommendation of 2-dose of MCC for primary immunization in HIV-infected children and adolescents with restored immune function.


Asunto(s)
Actividad Bactericida de la Sangre , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Infecciones por VIH/complicaciones , Inmunización Secundaria/efectos adversos , Infecciones Meningocócicas/prevención & control , Vacunas Meningococicas/efectos adversos , Vacunas Meningococicas/inmunología , Adolescente , Brasil , Niño , Preescolar , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/patología , Femenino , Humanos , Masculino , Vacunas Meningococicas/administración & dosificación , Encuestas y Cuestionarios , Resultado del Tratamiento
4.
J. pediatr. (Rio J.) ; 93(5): 532-537, Sept.-Oct. 2017. tab
Artículo en Inglés | LILACS | ID: biblio-894054

RESUMEN

Abstract Objective: HIV-infected individuals (HIVI) are threatened by meningococcal infection and presented lower response to vaccines. Data are scarce on long-term persistence of human serum bactericidal antibody (hSBA) after a meningococcal C conjugate (MCC) vaccine in HIVI youth; the authors aimed to describe this persistence in HIVI. Methods: HIVI and HIV uninfected individuals (HIVU), aged 2-18 years, CD4 >15% were recruited. Seroprotection (hSBA ≥1:4) at baseline and at 12-18 months after immunization was evaluated and the association of the different factors with the long-term persistence was calculated using logistic regression. Results: A total of 145 HIVI, 50 HIVU were recruited and immunized, and their median age was 11 years (median age in HIVI group was 12 years, and 10 years in HIVU group, p-value = 0.02). 85 HIVI (44%) had undetectable viral load (UVL). Seroprotection rate was 27.2%: 24.1% in HIVI and 36% in HIVU 12-18 months after immunization (p = 0.14). Baseline immunity (odds ratio [OR] = 70.70, 95% CI: 65.2-766.6); UVL at entry (OR: 2.87, 95% CI: 0.96-8.62) and lower family income (OR: 0.09, 95% CI: 0.01-0.69) were associated with seroprotection among HIVI. Conclusion: Seroprotection at 12-18 months after single dose of MCC was low for both groups, and higher among individuals who presented baseline immunity. Among HIVI, vaccine should be administered after UVL is achieved.


Resumo Objetivo: As pessoas infectadas pelo HIV (HIVI) estão sujeitas a infecção meningocócica e apresentam menor resposta a vacinas. São escassos os dados a respeito da persistência de longo prazo do anticorpo bactericida no soro humano (hSBA) após vacina conjugada meningocócica C (MCC) em HIVI jovens e visamos a descrever essa persistência em HIVI. Métodos: Foram recrutadas pessoas HIVI e pessoas não infectadas por HIV (HIVU), entre 2 e 18 anos, CD4 > 15%. A seroproteção (hSBA ≥ 1:4) basal aos 12-18 meses após a imunização foi avaliada e a associação dos diferentes fatores com a persistência de longo prazo foi calculada com a regressão logística. Resultados: Foram recrutados 145 HIVI e 50 HIVU e imunizados e sua idade média foi determinada em 11 anos (12 no grupo HIVI e 10 no grupo HIVU, valor de p = 0,02); 85 HIVI (44%) apresentaram carga viral indetectável (CVI). A taxa de seroproteção foi 27,2%: 24,1% no grupo HIVI e 36% no grupo HIVU 12-18 meses após imunização (p = 0,14). A imunidade basal [razão de chance (RC) = 7070, IC: 65,2-7666]; CVI no momento da participação (RC: 2,87, IC de 95%: 0,96-8,62) e renda familiar mais baixa (RC: 0,09, IC de 95%: 0,01-0,69) foram associadas a seroproteção entre as pessoas HIVI. Conclusão: A seroproteção aos 12-18 meses após única dose de MCC mostrou-se baixa em ambos os grupos e mais elevada entre as pessoas que apresentaram imunidade basal. Entre as pessoas HIVI, as vacinas devem ser administradas após a CVI ser atingida.


Asunto(s)
Humanos , Masculino , Femenino , Preescolar , Niño , Adolescente , Síndrome de Inmunodeficiencia Adquirida/inmunología , Vacunas Meningococicas/inmunología , Infecciones Meningocócicas/prevención & control , Anticuerpos Antibacterianos/inmunología , Factores de Tiempo , Estudios de Casos y Controles , Vacunas Meningococicas/administración & dosificación , Anticuerpos Antibacterianos/sangre
5.
Trop Med Int Health ; 22(10): 1266-1274, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28707345

RESUMEN

OBJECTIVE: To describe the cascade of care to HIV mother-to-child transmission (PMTCT) in a Rio de Janeiro reference paediatric clinic and evaluate the main factors possibly associated with HIV transmission. METHODS: Data on antenatal care (ANC), perinatal and neonatal assistance to HIV-infected and HIV-exposed but uninfected children assisted in the clinic from 1996 to 2013 were collected. The cascade of care was graphically demonstrated, and possible factors associated with HIV infection were described using regression models for bivariate and multivariate analysis. We imputed missing values of explanatory variables for the final model. RESULTS: A total of 989 children were included in the analysis: 211 were HIV and 778 HEU. Graphically, the HIV PMTCT cascade of care improved from 1996/2000 to the later periods, but not from 2001/2006 to 2007/2013. The main factor independently associated with the HIV infection over time was breastfeeding. In the period 1996/2000, the lack of antiretroviral use during labour was associated HIV transmission. While in 2001/2007, other modes of delivery but elective Caesarean section, and lack of maternal antiretroviral use during ANC were associated with HIV transmission. In the last period, the main factor associated with transmission was the lack of maternal ANC. CONCLUSIONS: The HIV PMTCT cascade improved over time, but HIV vertical transmission remains a problem, and better access to ANC is needed.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Lactancia Materna , Infecciones por VIH/psicología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Atención Prenatal/métodos , Combinación Trimetoprim y Sulfametoxazol/uso terapéutico , Zidovudina/administración & dosificación , Adulto , Fármacos Anti-VIH/provisión & distribución , Brasil , Lactancia Materna/efectos adversos , Contraindicaciones , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/transmisión , Humanos , Lactante , Fórmulas Infantiles/provisión & distribución , Recién Nacido , Edad Materna , Embarazo , Atención Prenatal/normas , Carga Viral , Adulto Joven , Zidovudina/provisión & distribución , Zidovudina/uso terapéutico
6.
J Pediatr (Rio J) ; 93(5): 532-537, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28441513

RESUMEN

OBJECTIVE: HIV-infected individuals (HIVI) are threatened by meningococcal infection and presented lower response to vaccines. Data are scarce on long-term persistence of human serum bactericidal antibody (hSBA) after a meningococcal C conjugate (MCC) vaccine in HIVI youth; the authors aimed to describe this persistence in HIVI. METHODS: HIVI and HIV uninfected individuals (HIVU), aged 2-18 years, CD4 >15% were recruited. Seroprotection (hSBA ≥1:4) at baseline and at 12-18 months after immunization was evaluated and the association of the different factors with the long-term persistence was calculated using logistic regression. RESULTS: A total of 145 HIVI, 50 HIVU were recruited and immunized, and their median age was 11 years (median age in HIVI group was 12 years, and 10 years in HIVU group, p-value=0.02). 85 HIVI (44%) had undetectable viral load (UVL). Seroprotection rate was 27.2%: 24.1% in HIVI and 36% in HIVU 12-18 months after immunization (p=0.14). Baseline immunity (odds ratio [OR]=70.70, 95% CI: 65.2-766.6); UVL at entry (OR: 2.87, 95% CI: 0.96-8.62) and lower family income (OR: 0.09, 95% CI: 0.01-0.69) were associated with seroprotection among HIVI. CONCLUSION: Seroprotection at 12-18 months after single dose of MCC was low for both groups, and higher among individuals who presented baseline immunity. Among HIVI, vaccine should be administered after UVL is achieved.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/inmunología , Anticuerpos Antibacterianos/inmunología , Infecciones Meningocócicas/prevención & control , Vacunas Meningococicas/inmunología , Adolescente , Anticuerpos Antibacterianos/sangre , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Humanos , Masculino , Vacunas Meningococicas/administración & dosificación , Factores de Tiempo
7.
Pediatr Infect Dis J ; 35(1): 71-7, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26741583

RESUMEN

BACKGROUND: There are concerns about the effects of in utero exposure to antiretroviral drugs (ARVs) on the development of HIV-exposed but uninfected (HEU) children. The aim of this study was to evaluate whether in utero exposure to ARVs is associated with lower birth weight/height and reduced growth during the first 2 years of life. METHODS: This cohort study was conducted among HEU infants born between 1996 and 2010 in Tertiary children's hospital in Rio de Janeiro, Brazil. Weight was measured by mechanical scale, and height was measured by measuring board. Z-scores for weight-for-age (WAZ), length-for-age (LAZ) and weight-for-length were calculated. We modeled trajectories by mixed-effects models and adjusted for mother's age, CD4 cell count, viral load, year of birth and family income. RESULTS: A total of 588 HEU infants were included of whom 155 (26%) were not exposed to ARVs, 114 (19%) were exposed early (first trimester) and 319 (54%) later. WAZ were lower among infants exposed early compared with infants exposed later: adjusted differences were -0.52 (95% confidence interval [CI]: -0.99 to -0.04, P = 0.02) at birth and -0.22 (95% CI: -0.47 to 0.04, P = 0.10) during follow-up. LAZ were lower during follow-up: -0.35 (95% CI: -0.63 to -0.08, P = 0.01). There were no differences in weight-for-length scores. Z-scores of infants exposed late during pregnancy were similar to unexposed infants. CONCLUSIONS: In HEU children, early exposure to ARVs was associated with lower WAZ at birth and lower LAZ up to 2 years of life. Growth of HEU children needs to be monitored closely.


Asunto(s)
Fármacos Anti-VIH/administración & dosificación , Peso al Nacer , Desarrollo Infantil , Infecciones por VIH/epidemiología , Exposición Materna , Complicaciones Infecciosas del Embarazo/epidemiología , Efectos Tardíos de la Exposición Prenatal , Fármacos Anti-VIH/efectos adversos , Brasil/epidemiología , Recuento de Linfocito CD4 , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Humanos , Lactante , Recién Nacido , Masculino , Exposición Materna/efectos adversos , Embarazo , Complicaciones Infecciosas del Embarazo/inmunología , Complicaciones Infecciosas del Embarazo/virología , Vigilancia en Salud Pública , Factores de Riesgo , Carga Viral
8.
Pediatr Infect Dis J ; 34(5): e113-8, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25876102

RESUMEN

BACKGROUND: We aimed to evaluate the Meningococcal (Neisseria meningitidis) C conjugated (MCC) vaccine seroconversion and adverse events (AEs) in HIV-infected and HIV-uninfected children and adolescents in Rio de Janeiro, Brazil. METHODS: HIV-infected or HIV-uninfected subjects, 2-18 years old, with CD4+ T-lymphocyte cell (CD4) percentage >15%, without active infection or antibiotic use, were enrolled. All patients were evaluated before and 1-2 months after immunization for seroconversion (defined as ≥4-fold titer increase in human serum bactericidal activity) and at 20 minutes, 3 and 7 days after immunization for AEs. Factors associated with seroconversion among HIV-infected group were studied. RESULTS: Two hundred four subjects were enrolled: 154 HIV-infected and 50 HIV-uninfected. Median age was 12 years, and 53% were female. Among the HIV-infected group, 82 (53%) had a history of at least 1 C clinical category of Centers for Diseases Control and Prevention event, and 134 (87%) were using combination antiretroviral therapy. The median nadir CD4 percentage was 13% (0-47%). Seventy-six (37.3%) experienced mild AEs. Seroconversion occurred in 46 of 154 (30%) in the HIV-infected group and in 38 of 50 (76%) in the uninfected group (P < 0.01). Factors associated with seroconversion in the HIV-infected group were as follows: never had a C clinical category event [odds ratio (OR) = 2.1, 95% confidence interval (CI): 1.0-4.4]; undetectable viral load at immunization (OR: 2.4, 95% CI: 1.1-5.2) and higher CD4 nadir/100 cells (OR: 1.1, 95% CI: 1.0-1.2). CONCLUSION: MCC vaccine should be administered to HIV-infected children and adolescents after maximum immunologic and virologic benefits have been achieved with combination antiretroviral therapy. Our data suggest that a single dose of MCC vaccine is insufficient for HIV-infected individuals 2-18 years of age.


Asunto(s)
Infecciones por VIH/inmunología , Infecciones Meningocócicas/prevención & control , Vacunas Meningococicas/efectos adversos , Vacunas Meningococicas/inmunología , Adolescente , Anticuerpos Antibacterianos/sangre , Brasil/epidemiología , Niño , Femenino , Infecciones por VIH/epidemiología , Humanos , Masculino , Estudios Prospectivos
9.
Braz. j. infect. dis ; 18(4): 394-399, Jul-Aug/2014. tab, graf
Artículo en Inglés | LILACS | ID: lil-719294

RESUMEN

The aim of present study was to describe the frequency of lipodystrophy syndrome associated with HIV (LSHIV) and factors associated with dyslipidemia in Brazilian HIV infected children. HIV infected children on antiretroviral treatment were evaluated (nutritional assessment, physical examination, and laboratory tests) in this cross-sectional study. Univariate analysis was performed using Mann-Whitney test or Fisher's exact test followed by logistic regression analysis. Presence of dyslipidemia (fasting cholesterol >200 mg/dl or triglycerides >130 mg/dl) was the dependent variable. 90 children were enrolled. The mean age was 10.6 years (3-16 years), and 52 (58%) were female. LSHIV was detected in 46 children (51%). Factors independently associated with dyslipidemia were: low intake of vegetables/fruits (OR = 3.47, 95%CI = 1.04-11.55), current use of lopinavir/ritonavir (OR = 2.91, 95%CI = 1.11-7.67). In conclusion, LSHIV was frequently observed; inadequate dietary intake of sugars and fats, as well as current use of lopinavir/ritonavir was associated with dyslipidemia.


Asunto(s)
Adolescente , Niño , Preescolar , Femenino , Humanos , Masculino , Fármacos Anti-VIH/efectos adversos , Dislipidemias/epidemiología , Síndrome de Lipodistrofia Asociada a VIH/epidemiología , Terapia Antirretroviral Altamente Activa , Brasil/epidemiología , Estudios Transversales , Dislipidemias/inducido químicamente , Dislipidemias/diagnóstico , Síndrome de Lipodistrofia Asociada a VIH/inducido químicamente , Síndrome de Lipodistrofia Asociada a VIH/diagnóstico , Prevalencia , Análisis de Regresión , Factores de Riesgo
10.
Braz J Infect Dis ; 18(4): 394-9, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24794884

RESUMEN

The aim of present study was to describe the frequency of lipodystrophy syndrome associated with HIV (LSHIV) and factors associated with dyslipidemia in Brazilian HIV infected children. HIV infected children on antiretroviral treatment were evaluated (nutritional assessment, physical examination, and laboratory tests) in this cross-sectional study. Univariate analysis was performed using Mann-Whitney test or Fisher's exact test followed by logistic regression analysis. Presence of dyslipidemia (fasting cholesterol >200mg/dl or triglycerides >130mg/dl) was the dependent variable. 90 children were enrolled. The mean age was 10.6 years (3-16 years), and 52 (58%) were female. LSHIV was detected in 46 children (51%). Factors independently associated with dyslipidemia were: low intake of vegetables/fruits (OR=3.47, 95%CI=1.04-11.55), current use of lopinavir/ritonavir (OR=2.91, 95%CI=1.11-7.67). In conclusion, LSHIV was frequently observed; inadequate dietary intake of sugars and fats, as well as current use of lopinavir/ritonavir was associated with dyslipidemia.


Asunto(s)
Fármacos Anti-VIH/efectos adversos , Dislipidemias/epidemiología , Síndrome de Lipodistrofia Asociada a VIH/epidemiología , Adolescente , Terapia Antirretroviral Altamente Activa , Brasil/epidemiología , Niño , Preescolar , Estudios Transversales , Dislipidemias/inducido químicamente , Dislipidemias/diagnóstico , Femenino , Síndrome de Lipodistrofia Asociada a VIH/inducido químicamente , Síndrome de Lipodistrofia Asociada a VIH/diagnóstico , Humanos , Masculino , Prevalencia , Análisis de Regresión , Factores de Riesgo
11.
AIDS Res Hum Retroviruses ; 30(10): 966-9, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24866283

RESUMEN

Renal toxicity is a concern in HIV-infected children receiving antiretrovirals. However, the prevalence [1.7%; 95% confidence interval (CI): 1.0-2.6%] and incidence of kidney dysfunction (0.17 cases/100 person-years; 95% CI: 0.04-0.30) were rare in this multicenter cohort study of 1,032 perinatally HIV-infected Latin American and Caribbean children followed from 2002 to 2011.


Asunto(s)
Infecciones por VIH/fisiopatología , Riñón/fisiopatología , Niño , Preescolar , Estudios de Cohortes , Femenino , Humanos , América Latina , Masculino , Indias Occidentales
12.
J Acquir Immune Defic Syndr ; 60(2): 214-8, 2012 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-22343177

RESUMEN

BACKGROUND: This study evaluated a wide range of viral load (VL) thresholds to identify a cut-point that best predicts new clinical events in children on stable highly active antiretroviral therapy (HAART). METHODS: Cox proportional hazards modeling was used to assess the adjusted risk for World Health Organization stage 3 or 4 clinical events (WHO events) as a function of time-varying CD4, VL, and hemoglobin values in a cohort study of Latin American children on HAART ≥6 months. Models were fit using different VL cut-points between 400 and 50,000 copies per milliliter, with model fit evaluated on the basis of the minimum Akaike information criterion value, a standard model fit statistic. RESULTS: Models were based on 67 subjects with WHO events out of 550 subjects on study. The VL cut-points of >2600 and >32,000 copies per milliliter corresponded to the lowest Akaike information criterion values and were associated with the highest hazard ratios (2.0, P = 0.015; and 2.1, P = 0.0058, respectively) for WHO events. CONCLUSIONS: In HIV-infected Latin American children on stable HAART, 2 distinct VL thresholds (>2600 and >32,000 copies/mL) were identified for predicting children at significantly increased risk for HIV-related clinical illness, after accounting for CD4 level, hemoglobin level, and other significant factors.


Asunto(s)
Fármacos Anti-VIH/administración & dosificación , Terapia Antirretroviral Altamente Activa , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Carga Viral , Niño , Preescolar , Infecciones por VIH/virología , Humanos , Lactante , Pronóstico , Resultado del Tratamiento
14.
Braz. j. infect. dis ; 13(4): 276-279, Aug. 2009. tab
Artículo en Inglés | LILACS | ID: lil-539763

RESUMEN

There are only scarce data on HIV progression in vertically infected children in developing countries. The aim of this study is to describe factors from neonatal period associated with long term non-progression (LTNP), in a Brazilian cohort. A cohort study, with data systematically collected from the "Peixe" Cohort (cohort study of children conducted at the main HIV Pediatric Center in Rio de Janeiro, from 1996 to 2005). The study included children who were vertically infected and started follow up at 5 years of age or younger. LTNP, defined as not reaching category C or severe immunosuppression before 5 years of age. Neonatal and demographic factors were studied. Variables with p-value<0.15 were included in a logistic regression model. 213 patients were included, of whom 42 percent (89/213) were classified as LTNP. Variables independently associated with LTNP were: baseline (at study entry) CD4+ cells (per percent) (OR= 1.06, 95 percentCI=1.01-1.12); age of initiating follow-up, per month (OR= 1.03, 95 percentCI=1.01-1.06); ZDV use duriing newborn period (OR= 3.31, 95 percentCI=0.86-12.71); use of antiretroviral (ART) before classification C or severe immunosuppression (OR= 5.89, 95 percentCI=2.03-17.10). Adjusting for age at the beginning of follow-up, antiretroviral that was unsuccessfully used to prevent maternal-to-child transmission (ZDV use in neonatal period) was associated with better prognosis. ARTs initiation before category C or severe immunosuppression was also associated with LTNP.


Asunto(s)
Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/transmisión , Sobrevivientes de VIH a Largo Plazo/estadística & datos numéricos , Transmisión Vertical de Enfermedad Infecciosa , Brasil , Estudios de Cohortes , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Estudios Prospectivos , Carga Viral
15.
Braz J Infect Dis ; 13(4): 276-9, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20231990

RESUMEN

There are only scarce data on HIV progression in vertically infected children in developing countries. The aim of this study is to describe factors from neonatal period associated with long term non-progression (LTNP), in a Brazilian cohort. A cohort study, with data systematically collected from the 'Peixe' Cohort (cohort study of children conducted at the main HIV Pediatric Center in Rio de Janeiro, from 1996 to 2005). The study included children who were vertically infected and started follow up at 5 years of age or younger. LTNP, defined as not reaching category C or severe immunosuppression before 5 years of age. Neonatal and demographic factors were studied. Variables with p-value<0.15 were included in a logistic regression model. 213 patients were included, of whom 42% (89/213) were classified as LTNP. Variables independently associated with LTNP were: baseline (at study entry) CD4+ cells (per %) (OR= 1.06, 95%CI=1.01-1.12); age of initiating follow-up, per month (OR= 1.03, 95%CI=1.01-1.06); ZDV use duriing newborn period (OR= 3.31, 95%CI=0.86-12.71); use of antiretroviral (ART) before classification C or severe immunosuppression (OR= 5.89, 95%CI=2.03-17.10). Adjusting for age at the beginning of follow-up, antiretroviral that was unsuccessfully used to prevent maternal-to-child transmission (ZDV use in neonatal period) was associated with better prognosis. ARTs initiation before category C or severe immunosuppression was also associated with LTNP.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/transmisión , Sobrevivientes de VIH a Largo Plazo/estadística & datos numéricos , Transmisión Vertical de Enfermedad Infecciosa , Brasil , Linfocitos T CD4-Positivos , Preescolar , Estudios de Cohortes , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Humanos , Lactante , Recién Nacido , Masculino , Estudios Prospectivos , Carga Viral
16.
Ann Trop Paediatr ; 28(1): 59-64, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18318951

RESUMEN

BACKGROUND: Growth failure in HIV-infected children is an important factor in either initiating or changing antiretroviral therapy (ART). This study assesses the impact of HIV infection on growth parameters of adolescents who acquired HIV vertically. METHODS: This retrospective, longitudinal study involved adolescents aged 10-20 years with vertically-acquired HIV infection who were followed up in one of the three main referral centres for paediatric HIV/AIDS in Rio de Janeiro, Brazil. Length, weight and variables related to demographic, clinical and laboratory issues were analysed. RESULTS: 108 subjects were enrolled. Median age was 12.7 years, median duration of follow-up was 97.2 months and 61 (56.5%) were female. The difference between the baseline and final weight Z-scores was -0.31 (p=0.02). Patients with final weight Z-scores < or = -2 used more ART regimens (average 4.13) than those with Z-scores > -2 (average 2.90, p<0.01) and also had a lower final CD4+ cell percentage--average 19% vs 24% (p<0.01), respectively. The difference between baseline and final-height Z-scores was -0.27 (p<0.01). Several factors were associated with a final-height Z-score < or = -2: clinical stage C during follow-up (RR 1.60, 95% CI 1.11-2.31), chronic diarrhoea during follow-up (RR 2.02, 95% CI 1.04-3.90), HAART use (RR 1.41, 95% CI 1.16-1.71), number of ART regimens (p<0.01) and final CD4+ cell percentage (p<0.01). In multivariate analysis, presentation in clinical stage C during follow-up was the only significant variable (OR 4.04, 95% CI 1.23-13.28). CONCLUSION: Even on HAART, HIV-infected adolescents have lower growth parameters than the normal population and this is associated with a worse prognosis.


Asunto(s)
Trastornos del Crecimiento/virología , Infecciones por VIH/complicaciones , Adolescente , Adulto , Terapia Antirretroviral Altamente Activa , Estatura , Peso Corporal , Brasil , Recuento de Linfocito CD4 , Niño , Países en Desarrollo , Estudios de Seguimiento , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Infecciones por VIH/transmisión , Humanos , Transmisión Vertical de Enfermedad Infecciosa , Estudios Retrospectivos
17.
Arq Bras Cardiol ; 90(1): 11-7, 2008 Jan.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-18317635

RESUMEN

OBJECTIVE: To describe the prevalence of cardiac abnormalities in the echocardiogram of children with AIDS followed up in a reference service at 18+/-6 months of AIDS confirmed diagnosis. METHODS: A cross-section study with a cohort after 18+/-6 months of AIDS diagnosis. The study included a total of 93 children with a confirmed diagnosis of AIDS with vertical transmission, with no malignancies and who underwent echocardiogram (echo) during cardiologic evaluation. Cardiac abnormalities were assessed in patients who were not treated (G1) and patients who were treated (G2) with combination antiretroviral therapy. RESULTS: When diagnosed with AIDS, the children were on average 3.07 years old and 50.50% were female. The combination regimen with antiretroviral agents was used by 47 patients (G2). Cardiac involvement was present in 40 children (43.00%). The presence of left ventricular dysfunction (G1: 39.10%; G2: 10.60%) and the isolated enlargement of left ventricle (G1: 6.60%; G2: 14.90%) were the most frequent findings. We observed a significant association between the groups without and with combination antiretroviral therapy asregards the presence of left ventricular dysfunction (PR= 3.42; [1.41-8.26]; p = 0.02) and malnutrition (PR = 1.79; [1.00-3.20]; p = 0.04). CONCLUSION: Cardiac involvement was frequent in children with AIDS and left ventricular dysfunction was the most common abnormality on echocardiogram. There was a statistically significant difference between the groups with and without triple combination treatment as regards the presence of left ventricular dysfunction and malnutrition.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Antirretrovirales/uso terapéutico , Disfunción Ventricular Izquierda/epidemiología , Síndrome de Inmunodeficiencia Adquirida/sangre , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Síndrome de Inmunodeficiencia Adquirida/transmisión , Preescolar , Quimioterapia Combinada , Métodos Epidemiológicos , Femenino , Ventrículos Cardíacos/efectos de los fármacos , Ventrículos Cardíacos/patología , Humanos , Transmisión Vertical de Enfermedad Infecciosa , Masculino , Desnutrición/diagnóstico , Desnutrición/epidemiología , Ultrasonografía , Disfunción Ventricular Izquierda/diagnóstico por imagen
18.
Arq. bras. cardiol ; 90(1): 11-17, jan. 2008. tab
Artículo en Inglés, Portugués | LILACS | ID: lil-476040

RESUMEN

OBJETIVO: Descrever a prevalência de alterações cardíacas ao ecocardiograma em crianças com AIDS acompanhadas em serviço de referência aos 18±6 meses do diagnóstico confirmado de AIDS. MÉTODOS: Estudo transversal, com corte aos 18±6 meses do diagnóstico de AIDS. Incluídas 93 crianças com diagnóstico confirmado de AIDS por transmissão vertical, sem doença maligna, que, na avaliação cardiológica, realizaram ecocardiograma (eco). De forma exploratória avaliaram-se as alterações cardíacas nos pacientes sem uso (G1) e com uso (G2) de terapia combinada anti-retroviral. RESULTADOS: Quando do diagnóstico de AIDS, as crianças tinham em média 3,07 anos e 50,50 por cento eram do sexo feminino. Esquema de terapia combinado com anti-retrovirais foi utilizado por 47 pacientes (G2). O acometimento cardíaco esteve presente em 40 crianças (43,00 por cento). A presença de disfunção ventricular esquerda (G1:39,10 por cento;G2:10,60 por cento) e o aumento isolado de ventrículo esquerdo (G1:6,60 por cento;G2:14,90 por cento) foram os achados mais freqüentes. Observou-se associação significativa entre os grupos sem e com terapia anti-retroviral combinada quanto à presença de disfunção ventricular esquerda (RP=3,42; [1,41-8,26]; p =0,02) e de desnutrição (RP=1,79; [1,00-3,20]; p=0,04). CONCLUSÃO: O acometimento cardíaco foi freqüente nas crianças com AIDS, sendo a disfunção ventricular esquerda a alteração mais observada ao ecocardiograma. Houve diferença estatisticamente significativa entre os grupos com e sem tratamento tríplice combinado quanto à presença de disfunção ventricular esquerda e de desnutrição.


OBJECTIVE: To describe the prevalence of cardiac abnormalities in the echocardiogram of children with AIDS followed up in a reference service at 18±6 months of AIDS confirmed diagnosis. METHODS: A cross-section study with a cohort after 18±6 months of AIDS diagnosis. The study included a total of 93 children with a confirmed diagnosis of AIDS with vertical transmission, with no malignancies and who underwent echocardiogram (echo) during cardiologic evaluation. Cardiac abnormalities were assessed in patients who were not treated (G1) and patients who were treated (G2) with combination antiretroviral therapy. RESULTS: When diagnosed with AIDS, the children were on average 3.07 years old and 50.50 percent were female. The combination regimen with antiretroviral agents was used by 47 patients (G2). Cardiac involvement was present in 40 children (43.00 percent). The presence of left ventricular dysfunction (G1: 39.10 percent; G2: 10.60 percent) and the isolated enlargement of left ventricle (G1: 6.60 percent; G2: 14.90 percent) were the most frequent findings. We observed a significant association between the groups without and with combination antiretroviral therapy asregards the presence of left ventricular dysfunction (PR= 3.42; [1.41-8.26]; p = 0.02) and malnutrition (PR = 1.79; [1.00-3.20]; p = 0.04). CONCLUSION: Cardiac involvement was frequent in children with AIDS and left ventricular dysfunction was the most common abnormality on echocardiogram. There was a statistically significant difference between the groups with and without triple combination treatment as regards the presence of left ventricular dysfunction and malnutrition.


Asunto(s)
Preescolar , Femenino , Humanos , Masculino , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Antirretrovirales/uso terapéutico , Disfunción Ventricular Izquierda/epidemiología , Síndrome de Inmunodeficiencia Adquirida/sangre , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Síndrome de Inmunodeficiencia Adquirida/transmisión , Quimioterapia Combinada , Métodos Epidemiológicos , Ventrículos Cardíacos/efectos de los fármacos , Ventrículos Cardíacos/patología , Transmisión Vertical de Enfermedad Infecciosa , Desnutrición/diagnóstico , Desnutrición/epidemiología , Disfunción Ventricular Izquierda
19.
Braz Oral Res ; 20(2): 103-7, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16878201

RESUMEN

Oral hairy leukoplakia (OHL) is an EBV (Epstein-Barr virus) opportunistic infection found in HIV-infected patients. It is an asymptomatic lesion that has an important prognostic value in AIDS. Differently from what takes place with HIV adult patients, OHL has been described in the literature as having a very small prevalence in pediatric patients. Therefore, the aim of this study was to investigate the prevalence of OHL in HIV pediatric patients using cytopathology. The sample consisted of 120 patients who were submitted to oral examination and had material scraped from both sides of their tongues. The diagnostic criterion was based on the identification of nuclear alterations. Clinical OHL was identified in two (1.67%) patients. The cytopathology revealed twenty (16.7%) cases of subclinical OHL. Our results show that in pediatric patients the prevalence of OHL may be larger than that described in the literature.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , VIH-1 , Leucoplasia Vellosa/epidemiología , Infecciones Oportunistas Relacionadas con el SIDA/patología , Infecciones Oportunistas Relacionadas con el SIDA/virología , Brasil/epidemiología , Distribución de Chi-Cuadrado , Niño , Citodiagnóstico , Femenino , Humanos , Leucoplasia Vellosa/patología , Leucoplasia Vellosa/virología , Recuento de Linfocitos , Masculino , Prevalencia , Estadísticas no Paramétricas , Lengua/patología , Carga Viral
20.
Braz. oral res ; 20(2): 103-107, Apr.-June 2006. ilus
Artículo en Inglés | LILACS | ID: lil-432184

RESUMEN

A leucoplasia pilosa oral (OHL) é uma infecção oportunista causada pelo Vírus Epstein-Barr (EBV) encontrada em pacientes infectados pelo HIV. É uma lesão assintomática que tem um importante valor prognóstico na AIDS. Diferentemente de pacientes adultos, a OHL tem sido descrita na literatura como tendo uma prevalência muito pequena em pacientes pediátricos. Logo, o objetivo deste estudo foi investigar a prevalência da OHL em pacientes pediátricos positivos para o HIV através do uso da citopatologia. A amostra consistiu-se de 120 pacientes, que foram submetidos a exame oral e coleta de material de ambos os lados da língua. O critério diagnóstico foi baseado na identificação de alterações nucleares. A OHL clínica foi identificada em dois (1,67%) pacientes. A citopatologia revelou vinte casos (16,7%) de OHL subclínica. Nossos resultados mostram que a prevalência de OHL em pacientes pediátricos infectados pelo HIV deve ser maior que a relatada na literatura.


Asunto(s)
Niño , Femenino , Humanos , Masculino , Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , VIH-1 , Leucoplasia Vellosa/epidemiología , Infecciones Oportunistas Relacionadas con el SIDA/patología , Infecciones Oportunistas Relacionadas con el SIDA/virología , Brasil/epidemiología , Distribución de Chi-Cuadrado , Citodiagnóstico , Recuento de Linfocitos , Leucoplasia Vellosa/patología , Leucoplasia Vellosa/virología , Prevalencia , Estadísticas no Paramétricas , Lengua/patología , Carga Viral
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