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1.
J Pediatr ; 269: 114003, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38447758

RESUMEN

OBJECTIVE: To assess the association between breastfeeding competency, as determined by Latch, Audible swallowing, Type of nipple, Comfort, and Hold (LATCH) and Preterm Infant Breastfeeding Behavior Scale (PIBBS) scores, and exclusive breastfeeding and growth among infants with low birth weight (LBW) in India, Malawi, and Tanzania. STUDY DESIGN: We conducted LATCH and PIBBS assessments among mother-infant dyads enrolled in the Low Birthweight Infant Feeding Exploration (LIFE) observational study of infants with moderately LBW (1500g-2499 g) in India, Malawi, and Tanzania. We analyzed feeding and growth patterns among this cohort. RESULTS: We observed 988 infants. We found no association between LATCH or PIBBS scores and rates of exclusive breastfeeding at 4 or 6 months. Higher week 1 LATCH and PIBBS scores were associated with increased likelihood of regaining birth weight by 2 weeks of age [LATCH: aRR 1.42 (95% CI 1.15, 1.76); PIBBS: aRR 1.15 (95% CI 1.07, 1.23); adjusted for maternal age, parity, education, residence, delivery mode, LBW type, number of offspring, and site]. Higher PIBBS scores at 1 week were associated with improved weight gain velocity (weight-for-age z-score change) at 1, 4, and 6 months [adjusted beta coefficient: 1 month 0.04 (95% CI 0.01, 0.06); 4 month 0.04 (95% CI 0.01, 0.06); and 6 month 0.04 (95% CI 0.00, 0.08)]. CONCLUSION: Although week 1 LATCH and PIBBS scores were not associated with rates of exclusive breastfeeding, higher scores were positively associated with growth metrics among infants with LBW, suggesting that these tools may be useful to identify dyads who would benefit from early lactation support.


Asunto(s)
Lactancia Materna , Recién Nacido de Bajo Peso , Humanos , Lactancia Materna/estadística & datos numéricos , Femenino , Estudios Prospectivos , Recién Nacido , Masculino , Adulto , Lactante , Tanzanía , India , Malaui , Desarrollo Infantil/fisiología , Estudios de Cohortes
2.
BMC Public Health ; 24(1): 2604, 2024 Sep 27.
Artículo en Inglés | MEDLINE | ID: mdl-39334032

RESUMEN

BACKGROUND: Incident HIV during the perinatal period significantly impedes elimination of Mother-to-Child HIV Transmission (eMTCT) efforts. Pre-Exposure Prophylaxis (PrEP) effectively reduces HIV acquisition, and new agents like injectable Cabotegravir (CAB-LA) offer potential advantages for pregnant and breastfeeding women. The Pregnancy, Infant, and Maternal health Outcomes (PrIMO) study will compare rates of composite adverse pregnancy outcomes, and infant adverse events, growth and neurodevelopment between mother-infant dyads receiving CAB-LA and those receiving oral PrEP in Malawi. METHODS: PrIMO is an observational cohort study involving: (1) the development of a PrEP Pregnancy Registry for longitudinal surveillance of pregnant women on PrEP in Malawi; and (2) the enrolment of a prospective safety cohort of 621 pregnant women initiating oral PrEP or CAB-LA and their subsequent infants. The registry will include all women continuing or initiating PrEP during pregnancy across targeted sites in Lilongwe and Blantyre districts. The safety cohort will enrol a subset of those women and their infants from Bwaila District Hospital in Lilongwe, Malawi. We hypothesize that CAB-LA's safety will be comparable to daily oral PrEP regarding adverse pregnancy outcomes, maternal/infant adverse events, and infant development. Participants in the cohort will choose either oral PrEP or CAB-LA and will be followed until 52 weeks post-delivery. Safety data will be collected from all mother-infant pairs and qualitative interviews will be conducted with a subset of purposively selected women (n = 50) to assess the acceptability of each PrEP modality. DISCUSSION: The PrIMO study will provide critical data on the safety of CAB-LA in pregnant and breastfeeding women and their infants. Results will guide clinical recommendations as the Malawi Ministry of Health prepares for the rollout of CAB-LA to this population. Evaluation of Registry implementation will inform its expansion to a nationwide safety monitoring system for PrEP use during pregnancy, with implications for similar systems in the region. TRIAL REGISTRATION NUMBER: NCT06158126. The study was prospectively registered (5 December 2023) in ClinicalTrials.gov.


Asunto(s)
Infecciones por VIH , Transmisión Vertical de Enfermedad Infecciosa , Profilaxis Pre-Exposición , Resultado del Embarazo , Humanos , Femenino , Malaui , Embarazo , Infecciones por VIH/prevención & control , Lactante , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo/prevención & control , Fármacos Anti-VIH/administración & dosificación , Fármacos Anti-VIH/uso terapéutico , Recién Nacido , Estudios Prospectivos , Adulto , Salud Materna , Estudios de Cohortes
3.
Metabolomics ; 19(11): 91, 2023 10 25.
Artículo en Inglés | MEDLINE | ID: mdl-37880481

RESUMEN

BACKGROUND: Preterm birth is a leading cause of death in children under the age of five. The risk of preterm birth is increased by maternal HIV infection as well as by certain antiretroviral regimens, leading to a disproportionate burden on low- and medium-income settings where HIV is most prevalent. Despite decades of research, the mechanisms underlying spontaneous preterm birth, particularly in resource limited areas with high HIV infection rates, are still poorly understood and accurate prediction and therapeutic intervention remain elusive. OBJECTIVES: Metabolomics was utilized to identify profiles of preterm birth among pregnant women living with HIV on two different antiretroviral therapy (ART) regimens. METHODS: This pilot study comprised 100 mother-infant dyads prior to antiretroviral initiation, on zidovudine monotherapy or on protease inhibitor-based antiretroviral therapy. Pregnancies that resulted in preterm births were matched 1:1 with controls by gestational age at time of sample collection. Maternal plasma and blood spots at 23-35 weeks gestation and infant dried blood spots at birth, were assayed using an untargeted metabolomics method. Linear regression and random forests classification models were used to identify shared and treatment-specific markers of preterm birth. RESULTS: Classification models for preterm birth achieved accuracies of 95.5%, 95.7%, and 80.7% in the untreated, zidovudine monotherapy, and protease inhibitor-based treatment groups, respectively. Urate, methionine sulfone, cortisone, and 17α-hydroxypregnanolone glucuronide were identified as shared markers of preterm birth. Other compounds including hippurate and N-acetyl-1-methylhistidine were found to be significantly altered in a treatment-specific context. CONCLUSION: This study identified previously known as well as novel metabolomic features of preterm birth in pregnant women living with HIV. Validation of these models in a larger, independent cohort is necessary to ascertain whether they can be utilized to predict preterm birth during a stage of gestation that allows for therapeutic intervention or more effective resource allocation.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Complicaciones Infecciosas del Embarazo , Nacimiento Prematuro , Lactante , Niño , Embarazo , Recién Nacido , Femenino , Humanos , Infecciones por VIH/tratamiento farmacológico , Zidovudina/uso terapéutico , Mujeres Embarazadas , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Fármacos Anti-VIH/uso terapéutico , Proyectos Piloto , Metabolómica , Inhibidores de Proteasas/uso terapéutico
4.
AIDS Behav ; 27(12): 4022-4032, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37392270

RESUMEN

In two parallel pilot studies, we implemented a combination adherence intervention of patient-centered counselling and adherence supporter training, tailored to support HIV treatment (i.e., antiretroviral therapy) or prevention (i.e., pre-exposure prophylaxis, or PrEP) during pregnancy and breastfeeding. Using a mixed-methods approach, we evaluated the intervention's acceptability. We investigated engagement, satisfaction, and discussion content via survey to all 151 participants assigned to the intervention arm (51 women living with HIV, 100 PrEP-eligible women without HIV). We also conducted serial in-depth interviews with a subgroup (n = 40) at enrollment, three months, and six months. In the quantitative analysis, the vast majority reported high satisfaction with intervention components and expressed desire to receive it in the future, if made available. These findings were supported in the qualitative analysis, with favorable comments about counselor engagement, intervention content and types of support received from adherence supporters. Overall, these results demonstrate high acceptability and provide support for HIV status-neutral interventions for antiretroviral adherence.


Asunto(s)
Infecciones por VIH , Profilaxis Pre-Exposición , Embarazo , Humanos , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Profilaxis Pre-Exposición/métodos , Malaui/epidemiología , Lactancia Materna , Antirretrovirales/uso terapéutico
5.
BJOG ; 130 Suppl 3: 99-106, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37470090

RESUMEN

OBJECTIVE: Globally, early and optimal feeding practices and strategies for small and vulnerable infants are limited. We aim to share the challenges faced and implementation lessons learned from a complex, mixed methods research study on infant feeding. DESIGN: A formative, multi-site, observational cohort study using convergent parallel, mixed-methods design. SETTING: Twelve tertiary/secondary, public/private hospitals in India, Malawi and Tanzania. POPULATION OR SAMPLE: Moderately low birthweight infants (MLBW; 1.50-2.49 kg). METHODS: We assessed infant feeding and care practices through: (1) assessment of in-facility documentation of 603 MLBW patient charts; (2) intensive observation of 148 MLBW infants during facility admission; and (3) prospective 1-year follow-up of 1114 MLBW infants. Focus group discussions and in-depth interviews gathered perspectives on infant feeding among clinicians, families, and key stakeholders. MAIN OUTCOME MEASURES: The outcomes of the primary study were: (1) To understand the current practices and standard of care for feeding LBW infants; (2) To define and document the key outcomes (including growth, morbidity, and lack of success on mother's own milk) for LBW infants under current practices; (3) To assess the acceptability and feasibility of a system-level Infant and Young Child Feeding (IYCF) intervention and the proposed infant feeding options for LBW infants. RESULTS: Hospital-level guidelines and provision of care for MLBW infants varied across and within countries. In all, 89% of charts had missing data on time to first feed and 56% lacked discharge weights. Among 148 infants observed in-facility, 18.5% were discharged prior to meeting stated weight goals. Despite challenges during COVID, 90% of the prospective cohort was followed until 12 months of age. CONCLUSIONS: Enrolment and follow-up of this vulnerable population required additional effort from researchers and the community. Using a mixed-methods exploratory study allowed for a comprehensive understanding of MLBW health and evidence-based planning of targeted large-scale interventions. Multi-site partnerships in global health research, which require active and equal engagement, are instrumental in avoiding duplication and building a stronger, generalisable evidence base.


Asunto(s)
Recién Nacido de Bajo Peso , Leche Humana , Femenino , Humanos , Recién Nacido , Peso al Nacer , Lactancia Materna , Mortalidad Infantil , Estudios Prospectivos
6.
Metabolomics ; 17(7): 62, 2021 06 23.
Artículo en Inglés | MEDLINE | ID: mdl-34164733

RESUMEN

INTRODUCTION: Untargeted metabolomics holds significant promise for biomarker detection and development. In resource-limited settings, a dried blood spot (DBS)-based platform would offer significant advantages over plasma-based approaches that require a cold supply chain. OBJECTIVES: The primary goal of this study was to compare the ability of DBS- and plasma-based assays to characterize maternal metabolites. Utility of the two assays was also assessed in the context of a case-control predictive model in pregnant women living with HIV. METHODS: Untargeted metabolomics was performed on archived paired maternal plasma and DBS from n = 79 women enrolled in a large clinical trial. RESULTS: A total of 984 named biochemicals were detected across both plasma and DBS samples, of which 627 (63.7%), 260 (26.4%), and 97 (9.9%) were detected in both plasma and DBS, plasma alone, and DBS alone, respectively. Variation attributable to study individual (R2 = 0.54, p < 0.001) exceeded that of the sample type (R2 = 0.21, p < 0.001), suggesting that both plasma and DBS were capable of differentiating individual metabolomic profiles. Log-transformed metabolite abundances were strongly correlated (mean Spearman rho = 0.51) but showed low agreement (mean intraclass correlation of 0.15). However, following standardization, DBS and plasma metabolite profiles were strongly concordant (mean intraclass correlation of 0.52). Random forests classification models for cases versus controls identified distinct feature sets with comparable performance in plasma and DBS (86.5% versus 91.2% mean accuracy, respectively). CONCLUSION: Maternal plasma and DBS samples yield distinct metabolite profiles highly predictive of the individual subject. In our case study, classification models showed similar performance albeit with distinct feature sets. Appropriate normalization and standardization methods are critical to leverage data from both sample types. Ultimately, the choice of sample type will likely depend on the compounds of interest as well as logistical demands.


Asunto(s)
Pruebas con Sangre Seca , Manejo de Especímenes , Biomarcadores , Estudios de Casos y Controles , Femenino , Humanos , Metabolómica , Embarazo
8.
AIDS Care ; 29(11): 1417-1425, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28355926

RESUMEN

Malawi's Option B+ program provides all HIV-infected pregnant women free lifelong antiretroviral therapy (ART), but challenges remain regarding retention and ART adherence, potentially due to male partner barriers. We explored relationships between male partner involvement and Option B+ retention and adherence. In 2014, a randomized controlled trial in Malawi compared male recruitment strategies for couple HIV testing and counseling (cHTC) at an antenatal clinic. This secondary analysis was conducted among the entire cohort (N = 200) of women, irrespective of randomization status. We assessed whether cHTC attendance, early disclosure of HIV-positive status, and partner ART reminders were associated with retention and adherence at one month after starting treatment. Retention was defined as attending HIV clinic follow-up within one day of running out of pills. Adherence was defined as taking ≥95% of ARTs by pill count. We used binomial regression to calculate adjusted risk ratios (aRR) and 95% confidence intervals (CI). Median female age was 26 years. Most women (79%) were retained; of these, 68% were adherent. Receiving cHTC was associated with improved retention (aRR 1.33, 95% CI 1.12, 1.59). Receiving male partner ART reminders was weakly associated with retention (aRR 1.16, 95% CI 0.96, 1.39). Disclosure within one day was not associated with retention (aRR 1.08, 95% CI: 0.91, 1.28). Among those who were retained, these three behaviors were not associated with improved 95% adherence. CHTC could play an important role in improving Option B+ retention. Increasing cHTC participation and enhancing adherence-related messages within cHTC are important.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Consejo , Infecciones por VIH/tratamiento farmacológico , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Cumplimiento de la Medicación/psicología , Aceptación de la Atención de Salud , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Parejas Sexuales/psicología , Adulto , Estudios de Cohortes , Revelación , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/psicología , Humanos , Modelos Logísticos , Malaui/epidemiología , Masculino , Tamizaje Masivo , Oportunidad Relativa , Embarazo
9.
Afr J AIDS Res ; 16(3): 215-223, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28978289

RESUMEN

Encouraging HIV-infected pregnant women to recruit male partners for couple HIV testing and counselling (CHTC) is promoted by the World Health Organization, but remains challenging. Formal strategies for recruiting the male partners of pregnant women have not been explored within an Option B+ programme. Our objective was to learn about experiences surrounding CHTC recruitment within a formal CHTC recruitment study. A randomised controlled trial comparing two CHTC recruitment strategies was conducted among HIV-infected pregnant women presenting to Bwaila Antenatal Unit in 2014. Women were randomised to receive an invitation to attend the clinic as a couple or this invitation plus clinic-led phone and community tracing. A qualitative study was conducted with a subset of participants to learn about recruitment. This paper describes experiences of a subset of HIV-infected pregnant women (N = 20) and male partners (N = 17). One on one in-depth interviews were audio-recorded, transcribed, translated, and coded using content analysis. Nearly all women presented the invitation and disclosed their HIV-positive status to their partners on the day of HIV diagnosis, often to facilitate pill-taking. Men and women in both arms perceived the messages to be more compelling since they came from the clinic, rather than the woman herself. Couples who attended CHTC displayed greater care for one another and mutual support for HIV-related behaviours. Facilitating CHTC with invitations and tracing can support CHTC uptake and support for HIV-affected couples. In an Option B+ context, inviting partners for CHTC can facilitate male involvement and have important benefits for families.


Asunto(s)
Consejo/métodos , Infecciones por VIH/diagnóstico , Infecciones por VIH/psicología , Parejas Sexuales/psicología , Adulto , Femenino , Humanos , Malaui , Masculino , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Complicaciones Infecciosas del Embarazo/psicología , Complicaciones Infecciosas del Embarazo/virología , Investigación Cualitativa
10.
J Acquir Immune Defic Syndr ; 95(1): 42-51, 2024 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-37757844

RESUMEN

BACKGROUND: Daily oral pre-exposure prophylaxis (PrEP) can reduce HIV incidence in pregnant and breastfeeding women, but adherence is essential. METHODS: We conducted a pilot randomized trial to evaluate an intervention package to enhance antenatal and postnatal PrEP use in Lilongwe, Malawi. The intervention was based on patient-centered counseling adapted from previous PrEP studies, with the option of a participant-selected adherence supporter. Participants were locally eligible for PrEP and randomized 1:1 to intervention or standard counseling (ie, control) and followed for 6 months. Participants received the intervention package or standard counseling at enrollment, 1, 3, and 6 months. Adherence was measured through plasma and intracellular tenofovir concentrations and scored using a published algorithm. Our primary outcome was retention in care with concentrations consistent with 4-7 doses/week. RESULTS: From June to November 2020, we enrolled 200 pregnant women with the median gestational age of 26 (interquartile range: 19-33) weeks. Study retention was high at 3 months (89.5%) and 6 months (85.5%). By contrast, across the 2 time points, 32.8% of participants retained in the study had adherence scores consistent with 2-5 doses/week while 10.3% had scores consistent with daily dosing. For the composite primary end point, no substantial differences were observed between the intervention and control groups at 3 months (28.3% vs. 29.0%, probability difference: -0.7%, 95% confidence interval: -13.3%, 11.8%) or at 6 months (22.0% vs. 26.3%, probability difference: -4.3%, 95% confidence interval: -16.1%, 7.6%). CONCLUSIONS: In this randomized trial of PrEP adherence support, retention was high, but less than one-third of participants had pharmacologically confirmed adherence of ≥4 doses/week. Future research should focus on antenatal and postnatal HIV prevention needs and their alignment across the PrEP continuum, including uptake, persistence, and adherence.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Profilaxis Pre-Exposición , Humanos , Femenino , Embarazo , Lactante , Infecciones por VIH/tratamiento farmacológico , Proyectos Piloto , Fármacos Anti-VIH/uso terapéutico , Lactancia Materna , Malaui , Cumplimiento de la Medicación , Atención Dirigida al Paciente
11.
J Glob Health ; 13: 06025, 2023 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-37387545

RESUMEN

Background: The coronavirus disease 2019 (COVID-19) and the measures taken to minimise its spread have significantly impacted mother- and infant-related healthcare. We describe the changes in newborn feeding, lactation support, and growth outcomes before compared to during the COVID-19 pandemic among moderately low birthweight infants (LBW) (1.5 to <2.5kg) in Malawi. Methods: The data presented here are part of the Low Birthweight Infant Feeding Exploration (LIFE) study, a formative, multisite, mixed methods observational cohort study. In this analysis, we included infants born at two public hospitals in Lilongwe, Malawi between 18 October 2019 and 29 July 2020. We categorised births as "pre-COVID-19 period" (before 1 April 2020) and "during COVID-19 period" (on or after 2 April 2020) and used descriptive statistics and mixed effects models to examine differences in birth complications, lactation support, feeding, and growth outcomes between the two time periods. Results: We included 300 infants and their mothers (n = 273) in the analysis. Most infants (n = 240) were born during the pre-COVID-19 period; 60 were born during the pandemic period. The latter group had a lower prevalence of uncomplicated births (35.8%) compared to pre-pandemic period group (16.7%) (P = 0.004). Fewer mothers reported early initiation of breastfeeding in the pandemic period (27.2%) compared to the pre-pandemic period (14.6%) (P = 0.053), along with significantly less breastfeeding support, particularly in view of discussion of proper latching (44.9% during COVID-19 vs 72.7% pre-COVID-19; P < 0.001) and physical support with positioning (14.3% vs 45.5% pre-COVID-19 P < 0.001). At 10 weeks of age, the prevalence of stunting was 51.0% pre-COVID-19 vs 45.1% during COVID-19 (P = 0.46), the prevalence of underweight was 22.5% pre-COVID-19 vs 30.4% during COVID-19 (P = 0.27), and the prevalence of wasting was 0% pre-COVID-19 vs 2.5% during COVID-19 (P = 0.27). Conclusions: Our findings highlight the continued need to optimise early initiation of breastfeeding and lactation support for infants during COVID-19 and future pandemics. More studies are needed to evaluate the long-term outcomes of moderately LBW born during the COVID-19 pandemic (including growth outcomes) and determine the impact of restrictive measures on access to lactation support and promotion of early initiation of breastfeeding.


Asunto(s)
COVID-19 , Femenino , Recién Nacido , Humanos , Lactante , Malaui/epidemiología , Peso al Nacer , COVID-19/epidemiología , Pandemias , Evaluación de Resultado en la Atención de Salud
12.
Front Reprod Health ; 5: 1206075, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37614700

RESUMEN

Introduction: Daily oral pre-exposure prophylaxis (PrEP) is a safe and effective HIV prevention method for pregnant and postpartum women, but adherence barriers exist. Understanding the role of male partners in supporting PrEP use may inform strategies to support PrEP adherence among pregnant and breastfeeding women. Methods: To understand male partners' involvement in women's use of PrEP, we conducted in-depth interviews with pregnant women in Lilongwe, Malawi who had recently decided to use PrEP (n = 30) and their male partners (n = 20) in the context of a PrEP adherence trial. Women were purposively recruited to ensure variation in their partners' HIV status. Interviews were conducted in Chichewa using a semistructured guide. We followed a thematic approach to analyze the interview data. Results: Most male partners were receptive to women using PrEP during pregnancy because it eased their fears of the woman and baby acquiring HIV. Men often played a key role in women's PrEP adherence by providing daily reminders and encouragement to adhere to their medication. The majority of women appreciated this support from the men as it lessened the burden of remembering to take their medications daily on their own and aided their adherence. However, several women who lacked male partner support spoke of wanting their partners to be more involved. Many men living with HIV found the mutual support beneficial for their antiretroviral therapy adherence, while men without HIV or with status unknown appreciated knowing that the family was protected. While most men were open to women continuing PrEP beyond the current study, some would only support it if women were still at risk for acquiring HIV. Conclusion: In this study, male partners were strongly motivated to support the PrEP adherence of their female partners as a way of ensuring that the pregnant women and unborn babies were protected against HIV. Promoting disclosure and tangible support that arises organically among men may be helpful, but programs to enhance this support and identify ways to support women who do not receive support from their partners or do not wish to disclose their PrEP use to partners may be needed.

13.
J Int AIDS Soc ; 26(3): e26075, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36929284

RESUMEN

INTRODUCTION: Couple HIV testing and counselling (CHTC) is associated with measurable benefits for HIV prevention and treatment. However, the uptake remains limited in much of sub-Saharan Africa, despite an expanded range of strategies designed to promote access. METHODS: Following PRIMSA guidelines, we conducted a systematic review to characterize CHTC uptake strategies. Five databases were searched. Full-text articles were included if they were: conducted in sub-Saharan Africa during the study period (1980-2019), targeted heterosexual couples, reported at least one strategy to promote CHTC and provided a quantifiable measure of CHTC uptake. After the initial and full-text screening, key features of the studies were abstracted and synthesized. RESULTS: Of the 6188 unique records found in our search, 365 underwent full-text review with 29 distinct studies included and synthesized. Most studies recruited couples through antenatal care (n = 11) or community venues (n = 8) and used provider-based HIV testing (n = 25). The primary demand creation strategies included home-based CHTC (n = 7); integration of CHTC into clinical settings (n = 4); distribution of HIV self-testing kits (n = 4); verbal or written invitations (n = 4); community recruiters (n = 3); partner tracing (n = 2); relationship counselling (n = 2); financial incentives (n = 1); group education with CHTC coupons (n = 1); and HIV testing at other community venues (n = 1). CHTC uptake ranged from negligible to nearly universal. DISCUSSION: We thematically categorized a diverse range of strategies with varying levels of intensity and resources used across sub-Saharan Africa to promote CHTC. Offering CHTC within couples' homes was the most common approach, followed by the integration of CHTC into clinical settings. Due to heterogeneity in study characteristics, we were unable to compare the effectiveness across studies, but several trends were observed, including the high prevalence of CHTC promotion strategies in antenatal settings and the promising effects of home-based CHTC, distribution of HIV self-tests and integration of CHTC into routine health services. Since 2019, an updated literature search found that combining partner notification and secondary distribution of HIV self-test kits may be an additionally effective CHTC strategy. CONCLUSIONS: There are many effective, feasible and scalable approaches to promote CHTC that should be considered by national programmes according to local needs, cultural context and available resources.


Asunto(s)
Infecciones por VIH , Parejas Sexuales , Humanos , Femenino , Embarazo , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Consejo , Prueba de VIH , África del Sur del Sahara
14.
J Int AIDS Soc ; 26(7): e26128, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37403422

RESUMEN

INTRODUCTION: Despite widespread success in reducing vertical HIV transmission, most antenatal care (ANC) programmes in eastern and southern Africa have not emphasized primary prevention of maternal HIV acquisition during pregnancy and lactation/breastfeeding. We hypothesized that combination HIV prevention interventions initiated alongside ANC could substantially reduce maternal HIV incidence. METHODS: We constructed a multi-state model describing male-to-female HIV transmission in steady heterosexual partnerships during pregnancy and lactation/breastfeeding, with initial conditions based on population distribution estimates for Malawi and Zambia in 2020. We modelled individual and joint increases in three HIV prevention strategies at or soon after ANC initiation: (1) HIV testing of male partners, resulting in HIV diagnosis and less condomless sex among those with previously undiagnosed HIV; (2) initiation (or re-initiation) of suppressive antiretroviral therapy (ART) for male partners with diagnosed but unsuppressed HIV; and (3) adherent pre-exposure prophylaxis (PrEP) for HIV-negative female ANC patients with HIV-diagnosed or unknown-status male partners. We estimated the percentage of within-couple, male-to-female HIV transmissions that could be averted during pregnancy and lactation/breastfeeding with these strategies, relative to base-case conditions in which 45% of undiagnosed male partners become newly HIV diagnosed via testing, 75% of male partners with diagnosed but unsuppressed HIV initiate/re-initiate ART and 0% of female ANC patients start PrEP. RESULTS: Increasing uptake of any single strategy by 20 percentage points above base-case levels averted 10%-11% of maternal HIV acquisitions during pregnancy and lactation/breastfeeding in the model. Joint uptake increases of 20 percentage points in two interventions averted an estimated 19%-23% of transmissions, and with a 20-percentage-point increase in uptake of all three interventions, 29% were averted. Strategies achieving 95% male testing, 90% male ART initiation/re-initiation and 40% female PrEP use reduced incident infections by 45%. CONCLUSIONS: Combination HIV prevention strategies provided alongside ANC and sustained through the post-partum period could substantially reduce maternal HIV incidence during pregnancy and lactation/breastfeeding in eastern and southern Africa.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Humanos , Masculino , Embarazo , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Fármacos Anti-VIH/uso terapéutico , Malaui/epidemiología , Zambia/epidemiología , Periodo Posparto
15.
Int Breastfeed J ; 18(1): 59, 2023 11 08.
Artículo en Inglés | MEDLINE | ID: mdl-37940987

RESUMEN

BACKGROUND: Low birthweight (LBW) infants are at increased risk of morbidity and mortality. Exclusive breastfeeding up to six months is recommended to help them thrive through infection prevention, growth improvements, and enhancements in neurodevelopment. However, limited data exist on the feeding experiences of LBW infants, their caregivers and key community influencers. The qualitative component of the Low Birthweight Infant Feeding Exploration (LIFE) study aimed to understand practices, facilitators, and barriers to optimal feeding options in the first six months for LBW infants in low-resource settings. METHODS: This study was conducted in four sites in India, Malawi, and Tanzania from July 2019 to August 2020. We conducted 37 focus group discussions with mothers and family members of LBW infants and community leaders and 142 in-depth interviews with healthcare providers, government officials, and supply chain and donor human milk (DHM) experts. Data were analyzed using a framework approach. RESULTS: All participants believed that mother's own milk was best for LBW infants. Direct breastfeeding was predominant and feeding expressed breast milk and infant formula were rare. DHM was a new concept for most. Adequate maternal nutrition, lactation support, and privacy in the facility aided breastfeeding and expression, but perceived insufficient milk, limited feeding counseling, and infant immaturity were common barriers. Most believed that DHM uptake could be enabled through community awareness by overcoming misconceptions, safety concerns, and perceived family resistance. CONCLUSION: This study fills an evidence gap in LBW infant feeding practices and their facilitators and barriers in resource-limited settings. LBW infants face unique feeding challenges such as poor latching and tiring at the breast. Similarly, their mothers are faced with numerous difficulties, including attainment of adequate milk supply, breast pain and emotional stress. Lactation support and feeding counseling could address obstacles faced by mothers and infants by providing psychosocial, verbal and physical support to empower mothers with skills, knowledge and confidence and facilitate earlier, more and better breast milk feeding. Findings on DHM are critical to the future development of human milk banks and highlight the need to solicit partnership from stakeholders in the community and health system.


Asunto(s)
Lactancia Materna , Madres , Femenino , Lactante , Humanos , Peso al Nacer , Tanzanía , Malaui , Madres/psicología
16.
PLOS Glob Public Health ; 3(6): e0001843, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37289720

RESUMEN

Infants need to receive care in environments that limit their exposure to pathogens. Inadequate water, sanitation, and hygiene (WASH) environments and suboptimal infection prevention and control practices in healthcare settings contribute to the burden of healthcare-associated infections, which are particularly high in low-income settings. Specific research is needed to understand infant feeding preparation in healthcare settings, a task involving multiple behaviors that can introduce pathogens and negatively impact health. To understand feeding preparation practices and potential risks, and to inform strategies for improvement, we assessed facility WASH environments and observed infant feeding preparation practices across 12 facilities in India, Malawi, and Tanzania serving newborn infants. Research was embedded within the Low Birthweight Infant Feeding Exploration (LIFE) observational cohort study, which documented feeding practices and growth patterns to inform feeding interventions. We assessed WASH-related environments and feeding policies of all 12 facilities involved in the LIFE study. Additionally, we used a guidance-informed tool to carry out 27 feeding preparation observations across 9 facilities, enabling assessment of 270 total behaviors. All facilities had 'improved' water and sanitation services. Only 50% had written procedures for preparing expressed breastmilk; 50% had written procedures for cleaning, drying, and storage of infant feeding implements; and 33% had written procedures for preparing infant formula. Among 270 behaviors assessed across the 27 feeding preparation observations, 46 (17.0%) practices were carried out sub-optimally, including preparers not handwashing prior to preparation, and cleaning, drying, and storing of feeding implements in ways that do not effectively prevent contamination. While further research is needed to improve assessment tools and to identify specific microbial risks of the suboptimal behaviors identified, the evidence generated is sufficient to justify investment in developing guidance and programing to strengthen infant feeding preparation practices to ensure optimal newborn health.

17.
PLOS Glob Public Health ; 3(4): e0001789, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37075019

RESUMEN

Globally, increasing rates of facility-based childbirth enable early intervention for small vulnerable newborns. We describe health system-level inputs, current feeding, and discharge practices for moderately low birthweight (MLBW) infants (1500-<2500g) in resource-constrained settings. The Low Birthweight Infant Feeding Exploration study is a mixed methods observational study in 12 secondary- and tertiary-level facilities in India, Malawi, and Tanzania. We analyzed data from baseline facility assessments and a prospective cohort of 148 MLBW infants from birth to discharge. Anthropometric measuring equipment (e.g., head circumference tapes, length boards), key medications (e.g., surfactant, parenteral nutrition), milk expression tools, and human milk alternatives (e.g., donor milk, formula) were not universally available. MLBW infants were preterm appropriate-for-gestational age (38.5%), preterm large-for-gestational age (3.4%), preterm small-for-gestational age (SGA) (11.5%), and term SGA (46.6%). The median length of stay was 3.1 days (IQR: 1.5, 5.7); 32.4% of infants were NICU-admitted and 67.6% were separated from mothers at least once. Exclusive breastfeeding was high (93.2%). Generalized group lactation support was provided; 81.8% of mother-infant dyads received at least one session and 56.1% had 2+ sessions. At the time of discharge, 5.1% of infants weighed >10% less than their birthweight; 18.8% of infants were discharged with weights below facility-specific policy [1800g in India, 1500g in Malawi, and 2000g in Tanzania]. Based on descriptive analysis, we found constraints in health system inputs which have the potential to hinder high quality care for MLBW infants. Targeted LBW-specific lactation support, discharge at appropriate weight, and access to feeding alternatives would position MLBW for successful feeding and growth post-discharge.

18.
BMJ Open ; 13(2): e067316, 2023 02 15.
Artículo en Inglés | MEDLINE | ID: mdl-36792338

RESUMEN

OBJECTIVES: To describe the feeding profile of low birthweight (LBW) infants in the first half of infancy; and to examine growth patterns and early risk factors of poor 6-month growth outcomes. DESIGN: Prospective observational cohort study. SETTING AND PARTICIPANTS: Stable, moderately LBW (1.50 to <2.50 kg) infants were enrolled at birth from 12 secondary/tertiary facilities in India, Malawi and Tanzania and visited nine times over 6 months. VARIABLES OF INTEREST: Key variables of interest included birth weight, LBW type (combination of preterm/term status and size-for-gestational age at birth), lactation practices and support, feeding profile, birthweight regain by 2 weeks of age and poor 6-month growth outcomes. RESULTS: Between 13 September 2019 and 27 January 2021, 1114 infants were enrolled, comprising 4 LBW types. 363 (37.3%) infants initiated early breast feeding and 425 (43.8%) were exclusively breastfed to 6 months. 231 (22.3%) did not regain birthweight by 2 weeks; at 6 months, 280 (32.6%) were stunted, 222 (25.8%) underweight and 88 (10.2%) wasted. Preterm-small-for-gestational age (SGA) infants had 1.89 (95% CI 1.37 to 2.62) and 2.32 (95% CI 1.48 to 3.62) times greater risks of being stunted and underweight at 6 months compared with preterm-appropriate-for-gestational age (AGA) infants. Term-SGA infants had 2.33 (95% CI 1.77 to 3.08), 2.89 (95% CI 1.97 to 4.24) and 1.99 (95% CI 1.13 to 3.51) times higher risks of being stunted, underweight and wasted compared with preterm-AGA infants. Those not regaining their birthweight by 2 weeks had 1.51 (95% CI 1.23 to 1.85) and 1.55 (95% CI 1.21 to 1.99) times greater risks of being stunted and underweight compared with infants regaining. CONCLUSION: LBW type, particularly SGA regardless of preterm or term status, and lack of birthweight regain by 2 weeks are important risk identification parameters. Early interventions are needed that include optimal feeding support, action-oriented growth monitoring and understanding of the needs and growth patterns of SGA infants to enable appropriate weight gain and proactive management of vulnerable infants. TRIAL REGISTRATION NUMBER: NCT04002908.


Asunto(s)
Recién Nacido de Bajo Peso , Delgadez , Recién Nacido , Femenino , Lactante , Humanos , Peso al Nacer , Estudios Prospectivos , Recien Nacido Prematuro , Recién Nacido Pequeño para la Edad Gestacional , Caquexia
19.
Obstet Gynecol Clin North Am ; 49(4): 693-712, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36328675

RESUMEN

Efforts to prevent mother-to-child transmission of human immunodeficiency virus (HIV) have led to dramatic reductions in pediatric HIV worldwide. New advances in HIV treatment and prevention, focused on pregnant and breastfeeding women living with HIV, have improved maternal health while decreasing vertical and horizontal HIV transmission. In this article, we describe how such interventions-including antiretroviral therapy and HIV pre-exposure prophylaxis-can be incorporated into antepartum and postpartum care in global settings.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Complicaciones Infecciosas del Embarazo , Embarazo , Femenino , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Fármacos Anti-VIH/uso terapéutico , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Complicaciones Infecciosas del Embarazo/prevención & control , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Periodo Posparto , Lactancia Materna , VIH
20.
Contemp Clin Trials Commun ; 26: 100903, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35243124

RESUMEN

Cervical cancer is the leading cause of cancer mortality among Malawian women, despite being preventable through screening and preventive therapy. In 2004, Malawi implemented a national screening program, using visual inspection with acetic acid (VIA) and cryotherapy, but its success has been limited due to equipment and human resources challenges. Since the development of that program, new technologies for screening and treatment that are less resource-intensive and more scalable have become available. GeneXpert systems provide fast, accurate HPV results and are increasingly available in low-income countries. Self-collection for human papillomavirus (HPV) testing is a validated method for screening and improves uptake. Thermal ablation provides an alternative ablative treatment that is simpler to use than cryotherapy and can be performed with portable devices. Meanwhile, urine HPV testing methods provide promising options for primary screening. We designed a single-arm prospective study to investigate a novel HPV screen-triage-treat strategy among 1250 women in Lilongwe, Malawi. Our proposed strategy consists of (1) Xpert HPV testing of self-collected samples, (2) VIA and colposcopy for HPV-positive women, and (3) thermal ablation for HPV-positive/ablation-eligible women. We will collect cervical biopsies, Pap smears, and endocervical samples to validate the HPV results and VIA/colposcopy findings against endpoints of high-grade cervical intraepithelial neoplasia or cancer (CIN2+). We will evaluate same-day completion of our algorithm, its performance in triaging women for treatment, and 24-week treatment efficacy of thermal ablation. We will also explore the performance of HPV and methylation tests in urine samples, as compared to provider- and self-collected cervicovaginal samples.

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