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1.
JMIR Form Res ; 6(11): e39357, 2022 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-36409541

RESUMO

BACKGROUND: Advances in medical treatments in recent years have contributed to an overall decline in HIV-related opportunistic infections and deaths in youth; however, mortality and morbidity rates in perinatally and nonperinatally infected adolescents and young adults (AYA) living with HIV remain relatively high today. OBJECTIVE: The goal of this project was to assess the use, utility, and cost-effectiveness of PlusCare, a digital app for HIV case management in AYA living with HIV. The app supports routine case management tasks, such as scheduling follow-up visits, sharing documents for review and signature, laboratory test results, and between-visit communications (eg, encouraging messages). METHODS: We conducted a single-group mixed methods pre-post study with HIV case management programs in 2 large urban hospitals in the Boston metro area. Case management staff (case managers [CMs], N=20) and AYA living with HIV participants (N=45) took part in the study with access to PlusCare for up to 15 and 12 months, respectively. RESULTS: The CMs and AYA living with HIV reported mean System Usability Scale scores of 51 (SD 7.9) and 63 (SD 10.6), respectively. Although marginally significant, total charges billed at 1 of the 2 sites compared with the 12 months before app use (including emergency, inpatient, and outpatient charges) decreased by 41% (P=.046). We also observed slight increases in AYA living with HIV self-reported self-efficacy in chronic disease management and quality of life (Health-Related Quality of Life-4) from baseline to the 12-month follow-up (P=.02 and P=.03, respectively) and increased self-efficacy from the 6- to 12-month follow-up (P=.02). There was no significant change in HIV viral suppression, appointment adherence, or medication adherence in this small-sample pilot study. CONCLUSIONS: Although perceived usability was low, qualitative feedback from CMs and use patterns suggested that direct messaging and timely, remote, and secure sharing of laboratory results and documents (including electronic signatures) between CMs and AYA living with HIV can be particularly useful and have potential value in supporting care coordination and promoting patient self-efficacy and quality of life. TRIAL REGISTRATION: ClinicalTrials.gov NCT03758066; https://clinicaltrials.gov/ct2/show/NCT03758066.

2.
Am J Perinatol ; 38(7): 741-746, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33853145

RESUMO

OBJECTIVE: This study aimed to describe maternal characteristics and clinical outcomes of infants born to mothers with positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests during pregnancy at an urban, safety-net hospital in Boston. STUDY DESIGN: We abstracted electronic chart data from 75 pregnant women with positive SARS-CoV-2 tests at any stage of gestation until 72 hours after birth who delivered consecutively between March 31 and August 6, 2020 at our center. We collected clinical data on maternal and infant characteristics, including testing, signs, and symptoms of coronavirus disease 2019 (COVID-19), delivery outcomes, newborn care practices (skin-to-skin care, location of care, and breastfeeding) and 30-day postdischarge infant emergency room visits and readmissions. We described categorical characteristics as percentages for this case series. RESULTS: Among 75 pregnant women, 47 (63%) were Hispanic, 10 (13%) had hypertension, 23 (30%) had prepregnancy obesity, and 57 (76%) had symptomatic SARS-CoV-2 infection. Regarding birth outcomes, 32 (41%) had cesarean delivery and 14 (19%) had preterm birth. Among 75 infants, 5 (7%) had positive SARS-CoV-2 polymerase chain reaction tests in the first week of life, all of whom were born to Hispanic mothers with symptomatic SARS-CoV-2 infection and had clinical courses consistent with gestational age. Six (8%) infants visited the emergency department within 30 days of discharge; one was admitted with a non-COVID-19 diagnosis. CONCLUSION: At our urban, safety-net hospital among pregnant women with positive SARS-CoV-2 tests, 41% had a cesarean delivery and 19% had a preterm birth. Seven percent of infants had one or more positive SARS-CoV-2 tests and all infants had clinical courses expected for gestational age. KEY POINTS: · Among 75 pregnant women with SARS-CoV-2 positive testing at our center, five infants (7%) had one or more SARS-CoV-2 positive tests in the first week of life.. · Infants with positive SARS-CoV-2 tests had clinical courses expected for gestational age..


Assuntos
COVID-19 , Doenças do Recém-Nascido , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez , SARS-CoV-2/isolamento & purificação , Adulto , Boston/epidemiologia , COVID-19/epidemiologia , COVID-19/terapia , COVID-19/transmissão , Cesárea/estatística & dados numéricos , Feminino , Idade Gestacional , Hospitalização/estatística & dados numéricos , Humanos , Cuidado do Lactente/métodos , Cuidado do Lactente/estatística & dados numéricos , Recém-Nascido , Doenças do Recém-Nascido/epidemiologia , Doenças do Recém-Nascido/virologia , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/terapia , Resultado da Gravidez , Nascimento Prematuro/epidemiologia , Provedores de Redes de Segurança/estatística & dados numéricos
3.
J Allergy Clin Immunol Pract ; 9(5): 2060-2067.e2, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33607339

RESUMO

BACKGROUND: Massachusetts began newborn screening (NBS) for severe combined immunodeficiency (SCID) using measurement of T-cell receptor excision circles (TRECs) from dried blood spots. OBJECTIVE: We describe developments and outcomes from the first 10 years of this program (February 1, 2009, to January 31, 2019). METHODS: TREC values, diagnostic, and outcome data from all patients screened for SCID were evaluated. RESULTS: NBS of 720,038 infants prompted immunologic evaluation of 237 (0.03%). Of 237, 9 were diagnosed with SCID/leaky SCID (4% of referrals vs 0.001% general population). Another 7 were diagnosed with other combined immunodeficiencies, and 3 with athymia. SCID/leaky SCID incidence was approximately 1 in 80,000, whereas approximately 1 in 51,000 had severe T-cell lymphopenia for which definitive treatment was indicated. All patients with SCID/leaky SCID underwent hematopoietic cell transplant or gene therapy with 100% survival. One patient with athymia underwent successful thymus transplant. No known cases of SCID were missed. Compared with outcomes from the 10 years before SCID NBS, survival trended higher (9 of 9 vs 4 of 7), likely due to a lower rate of infection before treatment. CONCLUSIONS: Our data support a single NBS testing-and-referral algorithm for all gestational ages. Despite lower median TREC values in premature infants, the majority for all ages are well above the TREC cutoff and the algorithm, which selects urgent (undetectable TREC) and repeatedly abnormal TREC values, minimizes referral. We also found that low naïve T-cell percentage is associated with a higher risk of SCID/CID, demonstrating the utility of memory/naïve T-cell phenotyping as part of follow-up flow cytometry.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Imunodeficiência Combinada Severa , Humanos , Lactente , Recém-Nascido , Recém-Nascido Prematuro , Massachusetts/epidemiologia , Triagem Neonatal , Receptores de Antígenos de Linfócitos T/genética , Imunodeficiência Combinada Severa/diagnóstico , Imunodeficiência Combinada Severa/epidemiologia , Imunodeficiência Combinada Severa/genética
4.
AIDS ; 35(2): 235-244, 2021 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-33394671

RESUMO

OBJECTIVE: The aim of this study was to describe the natural history of individuals with congenital HIV who develop JC virus (JCV) infection of the central nervous system (CNS). METHODS: We retrospectively evaluated individuals with congenital HIV who met criteria for progressive multifocal leukoencephalopathy (PML) or JCV granule cell neuronopathy (JCV GCN) at three major healthcare centres in the northeast USA. Data on adherence to combined antiretroviral therapy (cART), neurologic symptoms, serum markers of immunity and HIV infection, cerebrospinal fluid (CSF) analyses, radiographic features, modified Rankin Scale (mRS) scores and survival were collected from the electronic medical record up to a censoring date of 1 August 2020. RESULTS: Among 10 adults with congenitally acquired HIV, nine were diagnosed with definitive PML and one was diagnosed with probable JCV GCN. Individuals presented at the time of their PML or JCV GCN diagnosis with a mean mRS of 2.0 (standard deviation 1.0). A premorbid mRS was documented for six patients and was zero in all cases. The most common risk factor was confirmed cART nonadherence in nine individuals. Five individuals with PML and one with JCV GCN died, with a latency from symptom onset to death of approximately 3 months for three individuals, and approximately 2 years for the remaining two. CONCLUSION: Youth-adulthood transition is a high-risk point for dropping off from medical care. The study of this timepoint in people living with HIV could help inform effective care in these individuals.


Assuntos
Doenças do Sistema Nervoso Central , Infecções por HIV , Vírus JC , Leucoencefalopatia Multifocal Progressiva , Adolescente , Adulto , DNA Viral , Feminino , Infecções por HIV/complicações , Humanos , Masculino , Estudos Retrospectivos
5.
J Pediatric Infect Dis Soc ; 10(2): 196-200, 2021 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-32347312

RESUMO

Pediatric human immunodeficiency virus post-exposure prophylaxis is frequently indicated, but delays in medication receipt are common. Using plan-do-study-act cycles, we developed a multidisciplinary collaboration to reduce critical process delays in our pediatric emergency department. Interruptions decreased from a median 1 per month pre-intervention to zero per month during the intervention.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Fármacos Anti-HIV/uso terapêutico , Criança , Serviço Hospitalar de Emergência , HIV , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Profilaxia Pós-Exposição
6.
Int J Infect Dis ; 99: 28-33, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32721528

RESUMO

OBJECTIVE: The aim of this observational study was to determine the optimal timing of interleukin-6 receptor inhibitor (IL6ri) administration for coronavirus disease 2019 (COVID-19). METHODS: Patients with COVID-19 were given an IL6ri (sarilumab or tocilizumab) based on iteratively reviewed guidelines. IL6ri were initially reserved for critically ill patients, but after review, treatment was liberalized to patients with lower oxygen requirements. Patients were divided into two groups: those requiring ≤45% fraction of inspired oxygen (FiO2) (termed stage IIB) and those requiring >45% FiO2 (termed stage III) at the time of IL6ri administration. The main outcomes were all-cause mortality, discharge alive from hospital, and extubation. RESULTS: A total of 255 COVID-19 patients were treated with IL6ri (149 stage IIB and 106 stage III). Patients treated in stage IIB had lower mortality than those treated in stage III (adjusted hazard ratio (aHR) 0.24, 95% confidence interval (CI) 0.08-0.74). Overall, 218 (85.5%) patients were discharged alive. Patients treated in stage IIB were more likely to be discharged (aHR 1.43, 95% CI 1.06-1.93) and were less likely to be intubated (aHR 0.43, 95% CI 0.24-0.79). CONCLUSIONS: IL6ri administration prior to >45% FiO2 requirement was associated with improved COVID-19 outcomes. This can guide clinical management pending results from randomized controlled trials.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Betacoronavirus , Infecções por Coronavirus/tratamento farmacológico , Interleucina-6/antagonistas & inibidores , Pneumonia Viral/tratamento farmacológico , COVID-19 , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/patologia , Feminino , Humanos , Intubação Intratraqueal , Masculino , Pessoa de Meia-Idade , Pandemias , Alta do Paciente , Pneumonia Viral/mortalidade , Pneumonia Viral/patologia , SARS-CoV-2 , Resultado do Tratamento
7.
Pediatr Infect Dis J ; 36(1): 61-62, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27749654

RESUMO

We report our experience with 2 infants with in utero HIV-1 infection who began very early combination antiretroviral therapy within 4 hours of birth. Further neonatal studies of antiretroviral pharmacokinetics (PKs), safety, efficacy and treatment strategies are critically needed for the development of more potent regimens for use in HIV-infected infants.


Assuntos
Antirretrovirais/administração & dosagem , Antirretrovirais/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Feminino , Infecções por HIV/imunologia , HIV-1/genética , Humanos , Lactente , Masculino , RNA Viral/sangue , Tempo para o Tratamento , Carga Viral
8.
J Am Coll Cardiol ; 57(1): 76-85, 2011 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-21185505

RESUMO

OBJECTIVES: The aim of this study was to investigate the possible effects of antiretroviral therapy (ART) in utero on cardiac development and function in human immunodeficiency virus (HIV)-negative children. BACKGROUND: ART reduces vertical HIV transmission. Long-term cardiotoxicity after in utero exposure to ART is unknown in children but has occurred in young animals. METHODS: Using a prospective multisite cohort study design, echocardiograms taken between birth and 24 months were compared in 2 groups of HIV-negative infants of HIV-positive mothers: 136 infants exposed to ART (ART+) and 216 unexposed infants (ART-). RESULTS: Mean left ventricular (LV) mass z-scores were consistently lower in ART+ girls than in ART- girls: differences in mean z-scores were -0.46 at birth (p = 0.005), -1.02 at 6 months (p < 0.001), -0.74 at 12 months (p < 0.001), and -0.79 at 24 months (p < 0.001). Corresponding differences in z-scores for boys were smaller: 0.13 at 1 month (p = 0.42), -0.44 at 6 months (p = 0.01), -0.15 at 12 months (p = 0.37), and -0.21 at 24 months (p = 0.21). Septal wall thickness and LV dimension were smaller than expected in ART+ infants, but LV contractility was consistently about 1 SD higher at all ages (p < 0.001). In ART+ infants, LV fractional shortening was higher than in ART- infants; girls showed a greater difference. CONCLUSIONS: Fetal exposure to ART is associated with reduced LV mass, LV dimension, and septal wall thickness z-scores and increased LV fractional shortening and contractility up to age 2 years. These effects are more pronounced in girls than in boys. Fetal ART exposure may impair myocardial growth while improving depressed LV function.


Assuntos
Antirretrovirais/efeitos adversos , Soropositividade para HIV/tratamento farmacológico , HIV/imunologia , Coração/efeitos dos fármacos , Exposição Materna/efeitos adversos , Complicações Infecciosas na Gravidez/tratamento farmacológico , Função Ventricular Esquerda/efeitos dos fármacos , Adulto , Antirretrovirais/uso terapêutico , Terapia Antirretroviral de Alta Atividade/efeitos adversos , Pré-Escolar , Feminino , Seguimentos , Coração/embriologia , Humanos , Lactente , Recém-Nascido , Transmissão Vertical de Doenças Infecciosas , Masculino , Gravidez , Estudos Prospectivos , Fatores de Risco
10.
J Acquir Immune Defic Syndr ; 51(2): 202-8, 2009 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-19504732

RESUMO

OBJECTIVES: The difficulties diagnosing infants and children with HIV infection have been cited as barriers to increasing the number of children receiving antiretroviral therapy worldwide. DESIGN: We implemented routine HIV antibody counseling and testing for pediatric patients hospitalized at the University Teaching Hospital, a national reference center, in Lusaka, Zambia. We also introduced HIV DNA polymerase chain reaction (PCR) testing for early infant diagnosis. METHODS: Caregivers/parents of children admitted to the hospital wards were routinely offered HIV counseling and testing for their children. HIV antibody positive (HIV+) children <18 months of age were tested with PCR for HIV DNA. RESULTS: From January 1, 2006, to June 30, 2007, among 15,670 children with unknown HIV status, 13,239 (84.5%) received counseling and 11,571 (87.4%) of those counseled were tested. Overall, 3373 (29.2%) of those tested were seropositive. Seropositivity was associated with younger age: 69.6% of those testing HIV antibody positive were <18 months of age. The proportion of counseled children who were tested increased each quarter from 76.0% in January to March 2006 to 88.2% in April to June 2007 (P < 0.001). From April 2006 to June 2007, 1276 PCR tests were done; 806 (63.2%) were positive. The rate of PCR positivity increased with age from 22% in children <6 weeks of age to 61% at 3-6 months and to 85% at 12-18 months (P < 0.001). CONCLUSIONS: Routine counseling and antibody testing of pediatric inpatients can identify large numbers of HIV-seropositive children in high prevalence settings. The high rate of HIV infection in hospitalized infants and young children also underscores the urgent need for early infant diagnostic capacity in high prevalence settings.


Assuntos
Infecções por HIV/diagnóstico , Cuidadores , Pré-Escolar , Aconselhamento , DNA Viral/sangue , Feminino , Anticorpos Anti-HIV/sangue , Infecções por HIV/epidemiologia , Humanos , Lactente , Recém-Nascido , Consentimento Livre e Esclarecido , Masculino , Pais , Reação em Cadeia da Polimerase , Zâmbia/epidemiologia
11.
Pediatr Infect Dis J ; 26(1): 53-60, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17195707

RESUMO

OBJECTIVES: Identify endocrine differences between human immunodeficiency virus- (HIV) infected versus uninfected children and evaluate associations of growth and body composition with endocrine measures. STUDY DESIGN: Nested case-control study in 21 HIV-infected and 46 age- and sex-matched uninfected children in the Women and Infant Transmission Study. Plasma specimens from children between 2.5 to 7.0 years of age, taken during 3-4 visits, were tested for insulin-like growth factor binding protein-3 (IGFBP-3), cortisol, dehydroepiandrosterone (DHEA), growth hormone and thyroid studies. Longitudinal mixed and generalized estimating equation models compared group means and examined effects of endocrine measures on growth and body composition, respectively. RESULTS: HIV-infected children had lower IGFBP-3 than uninfected children (1.96 +/- 0.09 mg/L versus 2.34 +/- 0.06 mg/L, P < 0.001). In infected but not in uninfected children, IGFBP-3 values and DHEA:cortisol ratios were associated with weight- and body mass index-for-age z scores ([WAZ] P = 0.019, <.001 respectively, and [BMZ] P = 0.029, 0.038). DHEA concentration was associated with height-for-age z score (P = 0.049). CONCLUSIONS: In these HIV-infected children compared with their uninfected counterparts, IGFBP-3 concentration was different between groups. Infected children had multiple endocrine associations with growth and body composition not found in their uninfected peers. We hypothesize that in HIV-infected children, growth hormone resistance and shunting of precursors from adrenal androgen to cortisol production contributes to altered body composition and stunting.


Assuntos
Infecções por HIV/metabolismo , Infecções por HIV/fisiopatologia , Estatura , Peso Corporal , Estudos de Casos e Controles , Criança , Pré-Escolar , Desidroepiandrosterona/metabolismo , Feminino , Humanos , Proteína 3 de Ligação a Fator de Crescimento Semelhante à Insulina/metabolismo , Masculino , Glândula Tireoide/fisiopatologia , Tri-Iodotironina/metabolismo
12.
AIDS Res Hum Retroviruses ; 22(9): 870-3, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16989612

RESUMO

To determine if HIV-1 resistance testing of the blood predicts mutants in the genital secretions of ZDV-treated pregnant women, ZDV resistance mutations were assessed by an oligonucleotide ligation assay. ZDV resistance was detected in viral sequences from blood (16/48; 33%) and cervical secretions (6/24; 25%) collected during 57 pregnancies. The genotype of 11/69 (16%) resistance codons was discordant between blood and cervical virus of pregnant women near term. However, in only 1 (1.8%) of 57 pregnancies evaluated was resistant virus limited to the cervical secretions. ZDV-resistant virus is rarely limited to the female genital tract.


Assuntos
Fármacos Anti-HIV/farmacologia , Farmacorresistência Viral/genética , Infecções por HIV/prevenção & controle , HIV-1/efeitos dos fármacos , Complicações Infecciosas na Gravidez/virologia , Zidovudina/farmacologia , Biomarcadores/sangue , Muco do Colo Uterino/virologia , Farmacorresistência Viral/fisiologia , Feminino , Genitália Feminina/virologia , Infecções por HIV/tratamento farmacológico , HIV-1/genética , Humanos , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Plasma/virologia , Gravidez , DNA Polimerase Dirigida por RNA/genética
13.
Pediatr Infect Dis J ; 24(1): 46-56, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15665710

RESUMO

OBJECTIVE: We evaluated morbidity and mortality during the first 2 years of life among children born to human immunodeficiency virus-(HIV) type 1-infected women enrolled in the Women and Infants Transmission Study (WITS) during an 11-year period (1990-2001). DESIGN AND METHODS: As part of WITS, evaluations were performed at birth and at 1, 2, 4, 6, 9, 12, 18 and 24 months of age. Growth, hospitalization and the incidence of clinical disease were assessed regularly. RESULTS: Data regarding 1118 children born to HIV-infected women (955 HIV-uninfected children and 163 HIV-infected children) were analyzed. Fewer changes in the caretaker of the child and fewer in utero exposures to drugs, tobacco and alcohol occurred in the latter periods of the study (all P values for time trend analyses <0.01). The percentages of HIV-uninfected children with poor weight gain (44 of 767; 5.7%), short stature (32 of 703; 4.5%) and wasting (27 of 792; 3.4%) were higher than expected for the general population. Two or more changes in caretaker were associated with all growth deficiencies except wasting, and fetal exposure to tobacco was associated with height abnormalities. Anemia was common and was associated with receipt of zidovudine prophylaxis. Morbidity and mortality decreased during the study period. For the uninfected children, a decrease in class A events (Kaplan-Meier rates: group 1, 22.3%; group 2, 6.8%; group 3, 4.2%; P < 0.001) and class C events and death (Kaplan- Meier event rates: group 1, 2.0%; group 2, 1.7%; group 3, 0.2%; P = 0.062) during the first 2 years of life account for the differences in the curves over time. CONCLUSIONS: During an 11-year period, morbidity and mortality during the first 24 months of life decreased substantially for children born to HIV-infected women.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/mortalidade , Transmissão Vertical de Doenças Infecciosas , Complicações Infecciosas na Gravidez/tratamento farmacológico , Inibidores da Transcriptase Reversa/uso terapêutico , Adulto , Pré-Escolar , Quimioterapia Combinada , Feminino , Crescimento , Infecções por HIV/tratamento farmacológico , Infecções por HIV/fisiopatologia , Infecções por HIV/transmissão , Hospitalização , Humanos , Incidência , Lactente , Recém-Nascido , Recém-Nascido Prematuro , Morbidade/tendências , Gravidez , Complicações Infecciosas na Gravidez/virologia , Efeitos Tardios da Exposição Pré-Natal , Transtornos Relacionados ao Uso de Substâncias/complicações
14.
J Acquir Immune Defic Syndr ; 29(5): 484-94, 2002 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-11981365

RESUMO

CONTEXT: The Women and Infants Transmission Study is a prospective natural history study that has been enrolling HIV-1-infected pregnant women and their infants since 1989. OBJECTIVE: To evaluate the impact of different antiretroviral regimens on perinatal HIV-1 transmission at the population level. DESIGN: Prospective cohort study. Plasma HIV-1 RNA levels were serially measured in 1542 HIV-1-infected women with singleton live births between January 1990 and June 2000. MAIN OUTCOME MEASURE: HIV-1 status of the infant. RESULTS: HIV-1 transmission was 20.0% (95% confidence interval [CI], 16.1%-23.9%) for 396 women who not receiving prenatal antiretroviral therapy; 10.4% (95% CI, 8.2%-12.6%) for 710 receiving zidovudine monotherapy; 3.8% (95% CI, 1.1%-6.5%) for 186 receiving dual antiretroviral therapy with no or one highly active drug (Multi-ART); and 1.2% (95% CI, 0-2.5%) for 250 receiving highly active antiretroviral therapy (HAART). Transmission also varied by maternal delivery HIV RNA level: 1.0% for <400; 5.3% for 400 to 3499; 9.3% for 3500 to 9999; 14.7% for 10,000 to 29,999; and 23.4% for >30,000 copies/mL (p =.0001 for trend). The odds of transmission increased 2.4-fold (95% CI, 1.7-3.5) for every log10 increase in delivery viral load. In multivariate analyses adjusting for maternal viral load, duration of therapy, and other factors, the odds ratio for transmission for women receiving Multi-ART and HAART compared with those receiving ZDV monotherapy was 0.30 (95% CI, 0.09-1.02) and 0.27 (95% CI, 0.08-0.94), respectively. CONCLUSION: Levels of HIV-1 RNA at delivery and prenatal antiretroviral therapy were independently associated with transmission. The protective effect of therapy increased with the complexity and duration of the regimen. HAART was associated with the lowest rates of transmission.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez/tratamento farmacológico , Inibidores da Transcriptase Reversa/uso terapêutico , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Quimioterapia Combinada , Feminino , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , HIV-1/isolamento & purificação , HIV-1/fisiologia , Humanos , Recém-Nascido , Gravidez , Complicações Infecciosas na Gravidez/virologia , Estudos Prospectivos , RNA Viral/sangue , Fatores de Risco
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