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1.
HIV Med ; 23(6): 585-598, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34889022

RESUMO

OBJECTIVES: The aim of this study was to assess the impact of hepatitis B virus (HBV) infection on non-liver malignancies in people living with HIV (PLWH). METHODS: All persons aged ≥ 18 years with known hepatitis B virus (HBV) surface antigen (HBsAg) status after the latest of 1 January 2001 and enrolment in the EuroSIDA cohort (baseline) were included in the study; persons were categorized as HBV positive or negative using the latest HBsAg test and followed to their first diagnosis of nonliver malignancy or their last visit. RESULTS: Of 17 485 PLWH included in the study, 1269 (7.2%) were HBV positive at baseline. During 151 766 person-years of follow-up (PYFU), there were 1298 nonliver malignancies, 1199 in those currently HBV negative [incidence rate (IR) 8.42/1000 PYFU; 95% confidence interval (CI) 7.94-8.90/1000 PYFU] and 99 in those HBV positive (IR 10.54/1000 PYFU; 95% CI 8.47-12.62/1000 PYFU). After adjustment for baseline confounders, there was a significantly increased incidence of nonliver malignancies in HBV-positive versus HBV-negative individuals [adjusted incidence rate ratio (aIRR) 1.23; 95% CI 1.00-1.51]. Compared to HBV-negative individuals, HBsAg-positive/HBV-DNA-positive individuals had significantly increased incidences of nonliver malignancies (aIRR 1.37; 95% CI 1.00-1.89) and NHL (aIRR 2.57; 95% CI 1.16-5.68). There was no significant association between HBV and lung or anal cancer. CONCLUSIONS: We found increased rates of nonliver malignancies in HBsAg-positive participants, the increases being most pronounced in those who were HBV DNA positive and for NHL. If confirmed, these results may have implications for increased cancer screening in HIV-positive subjects with chronic HBV infection.


Assuntos
Infecções por HIV , Hepatite B Crônica , Hepatite B , Neoplasias , DNA Viral , Infecções por HIV/complicações , Hepatite B/complicações , Hepatite B/epidemiologia , Antígenos de Superfície da Hepatite B , Vírus da Hepatite B/genética , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Humanos , Neoplasias/complicações
2.
Clin Infect Dis ; 70(10): 2131-2140, 2020 05 06.
Artigo em Inglês | MEDLINE | ID: mdl-31504296

RESUMO

BACKGROUND: A hepatitis C (HCV) cure is associated with changes in lipids and inflammatory biomarkers, but its impact on clinical endpoints among treated human immunodeficiency virus (HIV)/HCV coinfected persons is unclear. METHODS: People living with HIV from EuroSIDA with a known HCV status after January 2001 were classified into strata based on time-updated HCV RNA measurements and HCV treatment, as either HCV antibody-negative; spontaneously resolved HCV; chronic, untreated HCV; cured HCV (HCV RNA-negative); or HCV treatment failures (HCV RNA-positive). Poisson regression was used to compare incidence rates between HCV groups for end-stage liver disease (ESLD; including hepatocellular carcinoma [HCC]), non-acquired immunodeficiency virus defining malignancy (NADM; excluding HCC), and cardiovascular disease (CVD). RESULTS: There were 16 618 persons included (median follow-up 8.3 years, interquartile range 3.1-13.7). There were 887 CVD, 902 NADM, and 436 ESLD events; crude incidence rates/1000 person-years follow-up were 6.4 (95% confidence interval [CI] 6.0-6.9) for CVD, 6.5 (95% CI 6.1-6.9) for NADM, and 3.1 (95% CI 2.8-3.4) for ESLD. After adjustment, there were no differences in incidence rates of NADM or CVD across the 5 groups. HCV-negative individuals (adjusted incidence rate ratio [aIRR] 0.22, 95% CI 0.14-0.34) and those with spontaneous clearance (aIRR 0.61, 95% CI 0.36-1.02) had reduced rates of ESLD compared to cured individuals. Persons with chronic, untreated HCV infections (aIRR 1.47, 95% CI 1.02-2.13) or treatment failure (aIRR 1.80, 95% CI 1.22-2.66) had significantly raised rates of ESLD, compared to those who were cured. CONCLUSIONS: Incidences of NADM or CVD were independent of HCV group, whereas those cured had substantially lower incidences of ESLD, underlining the importance of successful HCV treatment for reducing ESLD.


Assuntos
Carcinoma Hepatocelular , Coinfecção , Infecções por HIV , Hepatite C Crônica , Hepatite C , Neoplasias Hepáticas , Coinfecção/tratamento farmacológico , Coinfecção/epidemiologia , HIV , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Hepacivirus , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Humanos
3.
Przegl Epidemiol ; 73(2): 249-255, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31385682

RESUMO

INTRODUCTION: Chronic kidney disease is a significant cause of morbidity and mortality among patients infected with human immunodeficiency virus (HIV). Tenofovir disoproxil fumarate (TDF) is widely used as the part of combination antiretroviral therapy (cART) and may cause renal function impairment. AIM: The primary objective of this analysis was to determine the rate of reversibility of kidney dysfunction and factors correlated with eGFR improvement in patients treated with TDF. MATERIALS AND METHODS: All patients who discontinued TDF between 2003 and 2015 were screened and included in the study if the reason for withdrawal was nephrotoxicity. Kidney function (eGFR, proteinuria, haematuria) was assessed on treatment and one year after discontinuation. Factors associated with not achieving eGFR recovery one year after discontinuing TDF were assessed. RESULTS: A total of 69 patients out of 1625 screened discontinued TDF due to nephrotoxicity and were included in the analysis. At the end of the study period eGFR (CKD-EPI) improved in 52 (75,4%) patients. The eGFR difference was 11,7 ml/min/1,73m2 (95% CI: 6,0 ­ 14,5). Two factors were associated with kidney function improvement: the length of TDF treatment and baseline eGFR. Better recovery was observed in patients treated with shorter (difference: 15,6 ml/min/1,73m2, 95% CI: 5,99 ­ 23,0) and in those with impaired renal function at baseline (difference: 21 ml/min/1,73m2, 95% CI: 11,0 ­ 27,99). CONCLUSIONS: In majority of patients who discontinue TDF therapy, kidney function improves during oneyear period. The drug withdrawal in case of eGFR deterioration should not be postponed.


Assuntos
Nefropatias/induzido quimicamente , Tenofovir/efeitos adversos , Adulto , Antirretrovirais/efeitos adversos , Antirretrovirais/uso terapêutico , Antirretrovirais/toxicidade , Feminino , Taxa de Filtração Glomerular , Infecções por HIV/tratamento farmacológico , Hematúria , Humanos , Masculino , Pessoa de Meia-Idade , Proteinúria , Estudos Retrospectivos , Tenofovir/uso terapêutico , Tenofovir/toxicidade
5.
Cancers (Basel) ; 15(14)2023 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-37509301

RESUMO

Despite cancer being a leading comorbidity amongst individuals with HIV, there are limited data assessing cancer trends across different antiretroviral therapy (ART)-eras. We calculated age-standardised cancer incidence rates (IRs) from 2006-2021 in two international cohort collaborations (D:A:D and RESPOND). Poisson regression was used to assess temporal trends, adjusted for potential confounders. Amongst 64,937 individuals (31% ART-naïve at baseline) and 490,376 total person-years of follow-up (PYFU), there were 3763 incident cancers (IR 7.7/1000 PYFU [95% CI 7.4, 7.9]): 950 AIDS-defining cancers (ADCs), 2813 non-ADCs, 1677 infection-related cancers, 1372 smoking-related cancers, and 719 BMI-related cancers (groups were not mutually exclusive). Age-standardised IRs for overall cancer remained fairly constant over time (8.22/1000 PYFU [7.52, 8.97] in 2006-2007, 7.54 [6.59, 8.59] in 2020-2021). The incidence of ADCs (3.23 [2.79, 3.72], 0.99 [0.67, 1.42]) and infection-related cancers (4.83 [4.2, 5.41], 2.43 [1.90, 3.05]) decreased over time, whilst the incidence of non-ADCs (4.99 [4.44, 5.58], 6.55 [5.67, 7.53]), smoking-related cancers (2.38 [2.01, 2.79], 3.25 [2.63-3.96]), and BMI-related cancers (1.07 [0.83, 1.37], 1.88 [1.42, 2.44]) increased. Trends were similar after adjusting for demographics, comorbidities, HIV-related factors, and ART use. These results highlight the need for better prevention strategies to reduce the incidence of NADCs, smoking-, and BMI-related cancers.

6.
BMC Infect Dis ; 12: 229, 2012 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-23009317

RESUMO

BACKGROUND: State-of-the-art care involving the utilisation of multiple health care interventions is the basis for an optimal long-term clinical prognosis for HIV-patients. We evaluated health care for HIV patients based on four key indicators. METHODS: Four indicators of health care were assessed: Compliance with current guidelines on initiation of: 1) combination antiretroviral therapy (cART); 2) chemoprophylaxis; 3) frequency of laboratory monitoring; and 4) virological response to cART (proportion of patients with HIV-RNA < 500copies/ml for >90% of time on cART). RESULTS: 7097 EuroSIDA patients were included from Northern (n = 923), Southern (n = 1059), West Central (n = 1290) East Central (n = 1366), Eastern (n = 1964) Europe, and Argentina (n = 495). Patients in Eastern Europe with a CD4 < 200cells/mm(3) were less likely to initiate cART and Pneumocystis jiroveci-chemoprophylaxis compared to patients from all other regions, and less frequently had a laboratory assessment of their disease status. The proportion of patients with virological response was highest in Northern, 89% vs. 84%, 78%, 78%, 61%, 55% in West Central, Southern, East Central Europe, Argentina and Eastern Europe, respectively (p < 0.0001). Compared to Northern, patients from other regions had significantly lower odds of virological response; the difference was most pronounced for Eastern Europe and Argentina (adjusted OR 0.16 [95%CI 0.11-0.23, p < 0.0001]; 0.20[0.14-0.28, p < 0.0001] respectively). CONCLUSIONS: This assessment of HIV health care utilization revealed pronounced regional differences in adherence to guidelines and can help to identify gaps and direct target interventions. It may serve as a tool for the assessment and benchmarking of the clinical management of HIV patients in any setting worldwide.


Assuntos
Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Pesquisa sobre Serviços de Saúde , Assistência ao Paciente/métodos , Adulto , Argentina/epidemiologia , Benchmarking , Quimioprevenção/métodos , Monitoramento de Medicamentos/métodos , Europa (Continente)/epidemiologia , Feminino , Fidelidade a Diretrizes/estatística & dados numéricos , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , RNA Viral/sangue , Carga Viral
7.
AIDS ; 35(12): 2025-2033, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-34033590

RESUMO

OBJECTIVE: To evaluate time trends in pregnancies and pregnancy outcomes among women with HIV in Europe. DESIGN: European multicentre prospective cohort study. METHODS: EuroSIDA has collected annual cross-sectional audits of pregnancies between 1996 and 2015. Pregnancy data were extracted and described. Odds of pregnancy were modelled, adjusting for potential confounders using logistic regression with generalized estimating equations. RESULTS: Of 5535 women aged 16 to <50 years, 4217 (76.2%) had pregnancy information available, and 912 (21.6%) reported 1315 pregnancies. The proportions with at least one pregnancy were 28.1% (321/1143) in East, 24.5% (146/596) in North, 19.8% (140/706) in West/Central, 19.3% (110/569) in Central East and 16.2% (195/1203) in South Europe. Overall 319 pregnancies (24.3%) occurred in 1996-2002, 576 (43.8%) in 2003-2009 and 420 (31.9%) in 2010-2015. After adjustment, the odds of pregnancy were lower in 1996-2002, in South, Central East and East compared to West/Central Europe, in older women, those with low CD4+ cell count or with prior AIDS, and higher in those with a previous pregnancy or who were hepatitis C virus positive.Outcomes were reported for 999 pregnancies in 1996-2014, with 690 live births (69.1%), seven stillbirths (0.7%), 103 spontaneous (10.3%) and 199 medical abortions (19.9%). CONCLUSIONS: Around 20% of women in EuroSIDA reported a pregnancy, with most pregnancies after 2002, when more effective antiretroviral therapy became available. Substantial differences were seen between European regions. Further surveillance of pregnancies and outcomes among women living with HIV is warranted to ensure equal access to care.


Assuntos
Aborto Induzido , Infecções por HIV , Idoso , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Humanos , Gravidez , Prevalência , Estudos Prospectivos
8.
Sex Transm Infect ; 86(6): 447-8, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20940157

RESUMO

The authors present a case of severe gonococcal conjunctivitis associated with corneal perforation of the right eye in a 25-year-old homosexual man. Inpatient management and corneal grafting were required. The authors demonstrate that Neisseria gonorrhoea should be considered in the presence of purulent conjunctival discharge with a white patch on the cornea or reduced vision. Regardless of whether a patient has genital symptoms, they should be referred urgently to an ophthalmologist to ensure adequate treatment of this rare but sight-threatening complication.


Assuntos
Perfuração da Córnea/microbiologia , Transplante de Córnea , Úlcera da Córnea/cirurgia , Infecções Oculares Bacterianas/complicações , Gonorreia/complicações , Homossexualidade Masculina , Perfuração da Córnea/cirurgia , Infecções Oculares Bacterianas/cirurgia , Gonorreia/cirurgia , Humanos , Masculino , Neisseria gonorrhoeae , Adulto Jovem
9.
Int J Antimicrob Agents ; 50(3): 453-460, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28668686

RESUMO

The impact of early ART initiation (versus deferring) on kidney function has not been studied. START was a randomised comparison of immediate versus deferred ART initiation among HIV-positive persons with CD4+ (cells/mm3) counts >500. Serum creatinine and urine dipstick protein were measured at Months 0, 1, 4, 8 and 12, and annually thereafter. The two arms were compared for changes in eGFR (mL/min/1.73 m2, calculated by CKD-EPI equation), over time using longitudinal mixed models. Of 4685 START participants, 4629 (2294 in immediate and 2335 deferred arm) were included. Median baseline CD4+ and eGFR were 651 and 111.5, respectively. ART was initiated in 2271 participants (99.0%) in the immediate and 1127 (48.3%) in the deferred arm, accounting for >94% and >19% of follow-up time, respectively. Overall, 89% started ART using a tenofovir-based regimen. Over 2.1 years median follow-up, mean eGFR was 0.56 (95% CI 0.003-1.11) higher in the immediate versus deferred arm, which was more prominent after adjustment for current tenofovir or bPI use (1.85, 95% CI 1.21-2.50) and in Black participants (30.1% overall) (3.90, 95% CI 2.84-4.97) versus non-Blacks (1.05, 95% CI 0.33-1.77) (P < 0.001 for interaction). Relative risk for proteinuria in the immediate versus deferred arm was 0.74 (95% CI 0.55-1.00) (P = 0.049). In the short-term, immediate ART initiation was associated with a modestly higher eGFR and lower proteinuria risk versus deferring ART (more pronounced in Black participants). Whether this early benefit translates into a lower risk of CKD requires further follow-up.


Assuntos
Nefropatia Associada a AIDS/epidemiologia , Nefropatia Associada a AIDS/patologia , Antirretrovirais/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Adulto , Idoso , Feminino , Taxa de Filtração Glomerular , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade
10.
Przegl Epidemiol ; 60(4): 789-94, 2006.
Artigo em Polonês | MEDLINE | ID: mdl-17682761

RESUMO

Post-exposure prophylaxis (PEP) after exposure to potentially infectious material remains one of the most important elements of HIV prevention. In some cases it requires antiretroviral drugs administration, which might cause serious side effects. The following analysis was performed to identify adverse events of antiretroviral therapy in PEP as well as to evaluate patients adherence to consultations and tests schedule. Data were collected from standard forms filled in by physicians during consultation visits in 2001-2002. To identify HIV infection HIV Duo-quick test (BioMerieux, Vidas) was performed on the first visit, then after 2 weeks, 6 weeks, 3 months and 6 months. Among 177 patients (pts) there were 79 exposures in health care workers (HCWs), 98 in non-HCWs. In 70 of HCWs exposure was by needle-stick injury (NSI), in 3 cases by other medical instrument. In non-HCWs 88 cases exposure was by NSI and in three cases by human's bite. Only one HIV test was performed in 25 cases (31,6%) in HCWs group vs 16 pts (16,3%) in non-HCWs group (p=0.016). Twelve HCWs (15,2%) and 9 non-HCWs did not come back for the test result (p=0,2). The mean time from exposure to initiating PEP was 6 hours 48 min in HCWs vs 7 hours 16 min in non-HCWs group (p=0,77). Except 2 cases of d4T+ddl in HCWs group all others were AZT+3TC (63 HCWs and 91 non-HCWs). Three drug regimen with PI as third drug (indinavir or nelfinavir) was used in 14 cases of HCWs and 7 non-HCWs. Side effects (SE) were observed in 25 HCWs (31,6%) vs 37 non-HCWs (37,8%) (p=0,467), leading to PEP discontinuation in 11 vs 4 respectively (p=0,0028). PEP was continued despite SE in 14 HCWs vs 33 non-HCWs (p=0,007). There was no post-exposure HIV infection. Adherence to consultations and tests schedule was better in non-HCWs. Although the risk of infection was potentially lower in that group pts showed up and tested more regularly, less pts did not collect the test result. Even though tolerability in terms of SE frequency was slightly better in HCWs group, non-HCWs were more willing to take ARV for four weeks even in presence of SE. More of non-HCWs followed full drug prophylaxis.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Infecções por HIV/prevenção & controle , Doenças Profissionais/prevenção & controle , Exposição Ocupacional , Adolescente , Adulto , Instituições de Assistência Ambulatorial , Criança , Feminino , Infecções por HIV/etiologia , Infecções por HIV/transmissão , Pessoal de Saúde , Humanos , Transmissão de Doença Infecciosa do Paciente para o Profissional , Masculino , Pessoa de Meia-Idade , Ferimentos Penetrantes Produzidos por Agulha/complicações , Cooperação do Paciente , Polônia , Estudos Retrospectivos
11.
Lancet Respir Med ; 4(12): 980-989, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27773665

RESUMO

BACKGROUND: Observational data have been conflicted regarding the potential role of HIV antiretroviral therapy (ART) as a causative factor for, or protective factor against, COPD. We therefore aimed to investigate the effect of immediate versus deferred ART on decline in lung function in HIV-positive individuals. METHODS: We did a nested substudy within the randomised, controlled Strategic Timing of Antiretroviral Treatment (START) trial at 80 sites in multiple settings in 20 high-income and low-to-middle-income countries. Participants were HIV-1 infected individuals aged at least 25 years, naive to ART, with CD4 T-cell counts of more than 500 per µL, not receiving treatment for asthma, and without recent respiratory infections (baseline COPD was not an exclusion criterion). Participants were randomly assigned to receive ART (an approved drug combination derived from US Department of Health and Human Services guidelines) either immediately, or deferred until CD4 T-cell counts decreased to 350 per µL or AIDS developed. The randomisation was determined by participation in the parent START study, and was not specific to the substudy. Because of the nature of our study, site investigators and participants were not masked to the treatment group assignment; however, the assessors who reviewed the outcomes were masked to the treatment group. The primary outcome was the annual rate of decline in lung function, expressed as the FEV1 slope in mL/year; spirometry was done annually during follow-up for up to 5 years. We analysed data on an intention-to-treat basis, and planned separate analyses in smokers and non-smokers because of the known effects of smoking on FEV1 decline. The substudy was registered at ClinicalTrials.gov number NCT01797367. FINDINGS: Between March 11, 2010, and Aug 23, 2013, we enrolled 1026 participants to our substudy, who were then randomly assigned to either immediate (n=518) or deferred (n=508) ART. Median baseline characteristics included age 36 years (IQR 30-44), CD4 T-cell count 648 per µL (583-767), and HIV plasma viral load 4·2 log10 copies per mL (3·5-4·7). 29% were female and 28% were current smokers. Median follow-up time was 2·0 years (IQR 1·9-3·0). We noted no differences in FEV1 slopes between the immediate and deferred ART groups either in smokers (difference of -3·3 mL/year, 95% CI -38·8 to 32·2; p=0·86) or in non-smokers (difference of -5·6 mL/year, -29·4 to 18·3; p=0·65) or in pooled analyses adjusted for smoking status at each study visit (difference of -5·2 mL/year, -25·1 to 14·6; p=0·61). INTERPRETATION: The timing of ART initiation has no major short-term effect on rate of lung function decline in HIV-positive individuals who are naive to ART, with CD4 T-cell counts of more than 500 per µL. In light of updated WHO recommendations that all HIV-positive individuals should be treated with ART, regardless of their CD4 T-cell count, our results suggest an absence of significant pulmonary harm with such an approach. FUNDING: US National Heart Lung and Blood Institute, US National Institute of Allergy and Infectious Diseases, Division of AIDS, Agence Nationale de Recherches sur le SIDA et les Hipatites Virales (France), Australian National Health and Medical Research Council, Danish National Research Foundation, European AIDS Treatment Network, German Ministry of Education and Research, UK Medical Research Council and National Institute for Health Research, and US Veterans Health Administration Office of Research and Development.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Soropositividade para HIV/tratamento farmacológico , Tempo para o Tratamento , Adulto , Contagem de Linfócito CD4 , Linfócitos T CD4-Positivos/virologia , Esquema de Medicação , Feminino , Seguimentos , Soropositividade para HIV/fisiopatologia , Humanos , Pulmão/fisiopatologia , Pulmão/virologia , Masculino , Testes de Função Respiratória , Carga Viral/efeitos dos fármacos
12.
AIDS ; 27(6): 973-979, 2013 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-23698063

RESUMO

BACKGROUND: Due to the success of antiretroviral therapy (ART), it is relevant to ask whether death rates in optimally treated HIV are higher than the general population. The objective was to compare mortality rates in well controlled HIV-infected adults in the SMART and ESPRIT clinical trials with the general population. METHODS: Non-IDUs aged 20-70 years from the continuous ART control arms of ESPRIT and SMART were included if the person had both low HIV plasma viral loads (≤400 copies/ml SMART, ≤500 copies/ml ESPRIT) and high CD4(+) T-cell counts (≥350 cells/µl) at any time in the past 6 months. Standardized mortality ratios (SMRs) were calculated by comparing death rates with the Human Mortality Database. RESULTS: Three thousand, two hundred and eighty individuals [665 (20%) women], median age 43 years, contributed 12,357 person-years of follow-up. Sixty-two deaths occurred during follow up. Commonest cause of death was cardiovascular disease (CVD) or sudden death (19, 31%), followed by non-AIDS malignancy (12, 19%). Only two deaths (3%) were AIDS-related. Mortality rate was increased compared with the general population with a CD4(+) cell count between 350 and 499 cells/µl [SMR 1.77, 95% confidence interval (CI) 1.17-2.55]. No evidence for increased mortality was seen with CD4(+) cell counts greater than 500 cells/µl (SMR 1.00, 95% CI 0.69-1.40). CONCLUSION: In HIV-infected individuals on ART, with a recent undetectable viral load, who maintained or had recovery of CD4(+) cell counts to at least 500 cells/µl, we identified no evidence for a raised risk of death compared with the general population.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Terapia Antirretroviral de Alta Atividade/métodos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/mortalidade , Adulto , Contagem de Linfócito CD4 , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Resultado do Tratamento , Carga Viral
13.
AIDS ; 25(18): 2259-68, 2011 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-21918422

RESUMO

BACKGROUND: This study compared the incidence of fatal and nonfatal AIDS and non-AIDS events in HIV-positive individuals with a CD4 cell count more than 350  cells/µl among viral load strata: low (<500  copies/ml), intermediate (500-9999.9  copies/ml) and high (≥ 10000  copies/ml). METHODS: Individuals contributed person-years at risk if their most recent CD4 cell count was more than 350  cells/µl. Follow-up was censored if their CD4 cell count dropped below 350  cells/µl. Poisson regression analysis investigated the relationship between viraemia and the incidence of AIDS and non-AIDS events. RESULTS: Three hundred and fifty-four AIDS events occurred during 51 732  person-years of follow-up (PYFU), crude incidence rate of AIDS across the three strata was 0.53, 0.90 and 2.12 per 100 PYFU, respectively. After adjustment, a higher rate of AIDS was observed in individuals with moderate [incidence rate ratio (IRR) 1.44, 1.02-2.05, P = 0.03] and high viraemia had a higher rate (IRR 3.91, 2.89-5.89, P < 0.0001) compared with low viraemia. Five hundred and seventy-two non-AIDS events occurred during 43 784 PYFU, the crude incidence rates were 1.28, 1.52, and 1.38 per 100 PYFU, respectively. After adjustment, particularly for age, region of Europe and starting combination antiretroviral therapy, there was a 61% (IRR 1.61, 1.21-2.14, P = 0.001) and 66% (IRR 1.66, 1.17-2.32, P = 0.004) higher rate of non-AIDS in individuals with intermediate and high viraemia compared with low viraemia. CONCLUSION: In individuals with a CD4 cell count more than 350  cells/µl, an increased incidence of AIDS and a slightly increased incidence of non-AIDS was found in those with uncontrolled viral replication. The association with AIDS was clear and consistent. However, the association with non-AIDS was only apparent after adjustment and no differences were observed between intermediate and high viraemia.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/epidemiologia , Síndrome da Imunodeficiência Adquirida/mortalidade , Contagem de Linfócito CD4 , HIV-1 , Carga Viral , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Síndrome da Imunodeficiência Adquirida/imunologia , Adulto , Argentina/epidemiologia , Progressão da Doença , Europa (Continente)/epidemiologia , Feminino , Seguimentos , Infecções por HIV/epidemiologia , Infecções por HIV/imunologia , Humanos , Incidência , Israel/epidemiologia , Masculino , Estudos Prospectivos , Fatores de Risco , Viremia
14.
J Infect Dis ; 186(8): 1092-7, 2002 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-12355359

RESUMO

Effective highly active antiretroviral therapy (HAART) for human immunodeficiency virus type 1 is associated with virus suppression and immune reconstitution. However, in some patients, this reconstitution is partial or incomplete because CD4(+) cell counts do not increase significantly. This may be due to damage in the microenvironment of lymphoid tissues (LTs), where CD4(+) T cells reside. To test this hypothesis, LT samples were obtained from 23 patients enrolled in a prospective trial that compared 3 different HAART regimens. Analysis of LT architecture and CD4(+) T cells populations revealed abnormalities in 100% of the LT samples, especially in the follicles, with 43% showing absence, 14% showing regression, and 43% showing hyperplasia. CD4(+) T cell populations were abnormal in 16 (89%) of 18 tissue samples, with 7 (39%) of 18 decreased by >50% of normal levels. These data are consistent with the hypothesis that persistent abnormalities in the microenvironment can influence immune reconstitution and document persistent LT abnormalities with HAART not detected by measures of peripheral CD4(+) T cell count.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Infecções por HIV/patologia , Tecido Linfoide/imunologia , Tecido Linfoide/patologia , Adulto , Contagem de Linfócito CD4 , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/patologia , Estudos de Coortes , Feminino , HIV/imunologia , HIV/fisiologia , Infecções por HIV/imunologia , Humanos , Tecido Linfoide/efeitos dos fármacos , Masculino , RNA Viral/sangue , Carga Viral
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