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1.
Cell ; 184(3): 628-642.e10, 2021 02 04.
Artigo em Inglês | MEDLINE | ID: mdl-33476549

RESUMO

SARS-CoV-2 infection causes more severe disease in pregnant women compared to age-matched non-pregnant women. Whether maternal infection causes changes in the transfer of immunity to infants remains unclear. Maternal infections have previously been associated with compromised placental antibody transfer, but the mechanism underlying this compromised transfer is not established. Here, we used systems serology to characterize the Fc profile of influenza-, pertussis-, and SARS-CoV-2-specific antibodies transferred across the placenta. Influenza- and pertussis-specific antibodies were actively transferred. However, SARS-CoV-2-specific antibody transfer was significantly reduced compared to influenza- and pertussis-specific antibodies, and cord titers and functional activity were lower than in maternal plasma. This effect was only observed in third-trimester infection. SARS-CoV-2-specific transfer was linked to altered SARS-CoV-2-antibody glycosylation profiles and was partially rescued by infection-induced increases in IgG and increased FCGR3A placental expression. These results point to unexpected compensatory mechanisms to boost immunity in neonates, providing insights for maternal vaccine design.


Assuntos
Anticorpos Antivirais/imunologia , COVID-19/imunologia , Imunoglobulina G/imunologia , Troca Materno-Fetal/imunologia , Placenta/imunologia , Complicações Infecciosas na Gravidez/imunologia , SARS-CoV-2/imunologia , Adulto , Feminino , Humanos , Recém-Nascido , Gravidez , Terceiro Trimestre da Gravidez/imunologia , Receptores de IgG/imunologia , Células THP-1
2.
BMC Pregnancy Childbirth ; 23(1): 858, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38087238

RESUMO

INTRODUCTION: Women who deliver via cesarean section (c-section) experience short- and long-term disability that may affect their physical health and their ability to function normally. While clinical complications are assessed, postpartum functional outcomes are not well understood from a patient's perspective or well-characterized by previous studies. In Rwanda, 11% of rural women deliver via c-section. This study explores the functional recovery of rural Rwandan women after c-section and assesses factors that predict poor functionality at postoperative day (POD) 30. METHODS: Data were collected prospectively on POD 3, 11, and 30 from women delivering at Kirehe District Hospital between October 2019 and March 2020. Functionality was measured by self-reported overall health, energy level, mobility, self-care ability, and ability to perform usual activities; and each domain was rated on a 4-point likert scale, lower scores reflecting higher level of difficulties. Using the four functionality domains, we computed composite mean scores with a maximum score of 4.0 and we defined poor functionality as composite score of ≤ 2.0. We assessed functionality with descriptive statistics and logistic regression. RESULTS: Of 617 patients, 54.0%, 25.9%, and 26.8% reported poor functional status at POD3, POD11, and POD30, respectively. At POD30, the most self-reported poor functionality dimensions were poor or very poor overall health (48.1%), and inability to perform usual activities (15.6%). In the adjusted model, women whose surgery lasted 30-45 min had higher odds of poor functionality (aOR = 1.85, p = 0.01), as did women who experienced intraoperative complications (aOR = 4.12, 95% CI (1.09, 25.57), p = 0.037). High income patients had incrementally lower significant odds of poor physical functionality (aOR = 0.62 for every US$1 increase in monthly income, 95% CI (0.40, 0.96) p = 0.04). CONCLUSION: We found a high proportion of poor physical functionality 30 days post-c-section in this Rwandan cohort. Surgery lasting > 30 min and intra-operative complications were associated with poor functionality, whereas a reported higher income status was associated with lower odds of poor functionality. Functional status assessments, monitoring and support should be included in post-partum care for women who delivered via c-section. Effective risk mitigating intervention should be implemented to recover functionality after c-section, particularly among low-income women and those undergoing longer surgical procedures or those with intraoperative complications.


Assuntos
Cesárea , Período Pós-Parto , Gravidez , Humanos , Feminino , Ruanda/epidemiologia , Estudos Prospectivos , Complicações Intraoperatórias
3.
World J Surg ; 46(9): 2094-2101, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35665833

RESUMO

BACKGROUND: In rural Africa where access to medical personnel is limited, telemedicine can be leveraged to empower community health workers (CHWs) to support effective postpartum home-based care after cesarean section (c-section). As a first step toward telemedicine, we assessed the sensitivity, specificity, and interrater reliability of image-based diagnosis of surgical site infections (SSIs) among women delivering via c-section at a rural Rwandan Hospital. METHODS: Women ≥18 years who underwent c-section from March to October 2017 at Kirehe District Hospital (KDH) were enrolled. On postoperative day 10 at KDH, participants underwent a physical examination by a general practitioner, who provided a diagnosis of SSI or no SSI. Trained CHWs photographed patients' incisions and the collected images were shown to six physicians, who upon review, assigned one of the following diagnoses to each image: definite SSI, suspected SSI, suspected no SSI, and definite no SSI, which were compared with the diagnoses based on physical exam. We report the sensitivity and specificity and assessed reviewer agreement using Gwet's AC1. RESULTS: 569 images were included, with 61 women (10.7%) diagnosed with an SSI. Of the 3414 image-reviews, 49 (1.4%) could not be assigned diagnoses due to image quality. The median sensitivity and specificity were 0.83 and 0.69, respectively. The Gwet's AC1 estimate for binary classification was 0.46. CONCLUSIONS: We demonstrate decent accuracy but only moderate consistency for photograph-based SSI diagnosis. Strategies to improve overall agreement include providing clinical information to accompany photographs, providing a baseline photograph for comparison, and implementing photograph-taking processes aimed at improving image quality.


Assuntos
Infecção da Ferida Cirúrgica , Telemedicina , Cesárea , Feminino , Humanos , Gravidez , Reprodutibilidade dos Testes , Ruanda , Infecção da Ferida Cirúrgica/diagnóstico
4.
BMC Pregnancy Childbirth ; 22(1): 860, 2022 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-36411419

RESUMO

BACKGROUND: Postnatal care (PNC) is an important tool for reducing maternal and neonatal morbidity and mortality. However, what predicts receipt and maintenance in PNC, particularly events during pregnancy and the peripartum period, is not well understood. We hypothesized that fever or hypothermia during delivery would engender greater health consciousness among those attending antenatal care, leading to greater PNC engagement after hospital discharge and our objective was to evaluate this relationship. METHODS: Women were prospectively enrolled immediately postpartum at Mbarara Regional Referral Hospital (MRRH). We collected postpartum vital signs and surveyed women by telephone about PNC receipt, fever, and infection at two and six weeks postpartum. Our outcome of interest was receipt of PNC post-discharge, defined as whether a participant visited a health facility and/or was hospitalized in the postpartum period. Our explanatory variables were whether a participant was ever febrile (> 38.0˚C) or hypothermic (< 36.0˚C) during delivery stay and whether a participant attended at least 4 antenatal care (ANC) visits. We used logistic regressions to estimate the association between ANC and fever/hypothermia with PNC, including an interaction term between ANC and fever/hypothermia to determine whether there was a modifying relationship between variables on PNC. Regression models were adjusted for age, marital status, parity, HIV serostatus, Mbarara residency, and whether the participant was referred to MRRH, RESULTS: Of the 1,541 women, 86 (5.6%) reported visiting a health facility and/or hospitalization and 186 (12.0%) had an abnormal temperature recorded during delivery stay. Of those who reported at least one visit, 59/86 (68.6%) delivered by cesarean, 37/86 (43.0%) reported post-discharge fever, and 44/86 (51.2%) reported post-discharge infection. Neither ANC attendance, abnormal temperature after delivery, nor their interaction term, were significantly associated with post-discharge PNC. The included covariates were not significantly associated with the outcome. CONCLUSIONS: While the overall proportion of women reporting post-discharge PNC was low, those who reported visiting a health facility and/or hospitalization had high proportions of post-discharge fever, post-discharge infection, and cesarean delivery, which suggests that these visits may have been related to problem-focused care. No significant associations between ANC and PNC were observed in this cohort. Further research assessing ANC quality and PNC visit focus is needed to ensure ANC and PNC are optimized to reduce morbidity and mortality.


Assuntos
Hipotermia , Cuidado Pré-Natal , Recém-Nascido , Feminino , Humanos , Gravidez , Cuidado Pós-Natal , Estudos Prospectivos , Uganda , Assistência ao Convalescente , Temperatura , Alta do Paciente , Paridade , Febre
5.
J Infect Dis ; 224(12 Suppl 2): S694-S700, 2021 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-33880547

RESUMO

BACKGROUND: Women with human immunodeficiency virus (HIV) (WHIV) are at higher risk of adverse birth outcomes. Proposed mechanisms for the increased risk include placental arteriopathy (vasculopathy) and maternal vascular malperfusion (MVM) due to antiretroviral therapy and medical comorbid conditions. However, these features and their underlying pathophysiologic mechanisms have not been well characterized in WHIV. METHODS: We performed gross and histologic examination and immunohistochemistry staining for vascular endothelial growth factor A (VEGF-A), a key angiogenic factor, on placentas from women with ≥1 MVM risk factors including: weight below the fifth percentile, histologic infarct or distal villous hypoplasia, nevirapine-based antiretroviral therapy, hypertension, and preeclampsia/eclampsia during pregnancy. We compared pathologic characteristics by maternal HIV serostatus. RESULTS: Twenty-seven of 41 (placentas 66%) assessed for VEGF-A were from WHIV. Mean maternal age was 27 years. Among WHIV, median CD4 T-cell count was 440/µL, and the HIV viral load was undetectable in 74%. Of VEGF-A-stained placentas, both decidua and villous endothelium tissue layers were present in 36 (88%). VEGF-A was detected in 31 of 36 (86%) with decidua present, and 39 of 40 (98%) with villous endothelium present. There were no differences in VEGF-A presence in any tissue type by maternal HIV serostatus (P = .28 to >.99). MVM was more common in placentas selected for VEGF-A staining (51 vs 8%; P < .001). CONCLUSIONS: VEGF-A immunostaining was highly prevalent, and staining patterns did not differ by maternal HIV serostatus among those with MVM risk factors, indicating that the role of VEGF-A in placental vasculopathy may not differ by maternal HIV serostatus.


Assuntos
Infecções por HIV/complicações , Doenças Placentárias/patologia , Placenta/irrigação sanguínea , Doenças Vasculares , Adulto , Feminino , Retardo do Crescimento Fetal , HIV , Infecções por HIV/tratamento farmacológico , Humanos , Recém-Nascido Pequeno para a Idade Gestacional , Gravidez , Fator A de Crescimento do Endotélio Vascular
7.
Int J Obes (Lond) ; 45(8): 1855-1859, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34007011

RESUMO

BACKGROUND: Obesity is common among people living with HIV (PLWH) and early-stage infection, yet associations with combination antiretroviral (cART) adherence are unclear. METHODS: Among PLWH initiating cART in Uganda and South Africa, body mass index (BMI) was assessed at cART initiation, and cART adherence was monitored in real-time over 12 months. The association of obesity (BMI ≥ 30 kg/m2) with adherence was assessed among nonpregnant participants with CD4 > 350 cells/mm3 using fractional regression modeling. RESULTS: Among 322 participants, median age was 32 years, 70% were female, and 54% were from Uganda. Prevalence of obesity was 12% in Uganda and 28% in South Africa. Mean overall cART adherence was 83% in Uganda and 66% in South Africa. Participants with obesity had higher adherence than those without obesity: +3.6% (p = 0.44) in Uganda and +11.4% (p = 0.02) in South Africa. CONCLUSION: Obesity at cART initiation was common and associated with higher adherence, although only significantly in South Africa.


Assuntos
Terapia Antirretroviral de Alta Atividade , Infecções por HIV , Adesão à Medicação/estatística & dados numéricos , Obesidade , Adulto , Antirretrovirais/uso terapêutico , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Masculino , Obesidade/complicações , Obesidade/epidemiologia , África do Sul/epidemiologia , Uganda/epidemiologia
8.
Anesth Analg ; 133(6): 1608-1616, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34415855

RESUMO

BACKGROUND: The health care systems of low-income countries have severely limited capacity to treat surgical diseases and conditions. There is limited information about which hospital mortality outcomes are suitable metrics in these settings. METHODS: We did a 1-year observational cohort study of patient admissions to the Surgery and the Obstetrics and Gynecology departments and of newborns delivered at a Ugandan secondary referral hospital. We examined the proportion of deaths captured by standardized metrics of mortality. RESULTS: There were 17,015 admissions and 9612 deliveries. A total of 847 deaths were documented: 385 (45.5%) admission deaths and 462 (54.5%) perinatal deaths. Less than one-third of admission deaths occurred during or after an operation (n = 126/385, 32.7%). Trauma and maternal mortality combined with perioperative mortality produced 79.2% (n = 305/385) of admission deaths. Of 462 perinatal deaths, 412 (90.1%) were stillborn, and 50 (10.9%) were early neonatal deaths. The combined metrics of the trauma mortality rate, maternal mortality ratio, thirty-day perioperative mortality rate, and perinatal mortality rate captured 89.8% (n = 761/847) of all deaths documented at the hospital. CONCLUSIONS: The combination of perinatal, maternal, trauma, and perioperative mortality metrics captured most deaths documented at a Ugandan referral hospital.


Assuntos
Anestesia/mortalidade , Parto Obstétrico/mortalidade , Mortalidade Hospitalar , Centros de Cuidados de Saúde Secundários/estatística & dados numéricos , Procedimentos Cirúrgicos Operatórios/mortalidade , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Lactente , Recém-Nascido , Mortalidade Materna , Pessoa de Meia-Idade , Mortalidade Perinatal , Período Perioperatório/mortalidade , Gravidez , Reprodutibilidade dos Testes , Natimorto , Uganda , Ferimentos e Lesões/mortalidade , Adulto Jovem
9.
BMC Pregnancy Childbirth ; 21(1): 124, 2021 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-33579213

RESUMO

BACKGROUND: Women in sub-Saharan Africa have the highest rates of morbidity and mortality during childbirth globally. Despite increases in facility-based childbirth, gaps in quality of care at facilities have limited reductions in maternal deaths. Infrequent physiologic monitoring of women around childbirth is a major gap in care that leads to delays in life-saving interventions for women experiencing complications. METHODS: We will conduct a type-2 hybrid effectiveness-implementation study over 12 months to evaluate using a wireless physiologic monitoring system to detect and alert clinicians of abnormal vital signs in women for 24 h after undergoing emergency cesarean delivery at a tertiary care facility in Uganda. We will provide physiologic data (heart rate, respiratory rate, temperature and blood pressure) to clinicians via a smartphone-based application with alert notifications if monitored women develop predefined abnormalities in monitored physiologic signs. We will alternate two-week intervention and control time periods where women and clinicians use the wireless monitoring system during intervention periods and current standard of care (i.e., manual vital sign measurement when clinically indicated) during control periods. Our primary outcome for effectiveness is a composite of severe maternal outcomes per World Health Organization criteria (e.g. death, cardiac arrest, jaundice, shock, prolonged unconsciousness, paralysis, hysterectomy). Secondary outcomes include maternal mortality rate, and case fatality rates for postpartum hemorrhage, hypertensive disorders, and sepsis. We will use the RE-AIM implementation framework to measure implementation metrics of the wireless physiologic system including Reach (proportion of eligible women monitored, length of time women monitored), Efficacy (proportion of women with monitoring according to Uganda Ministry of Health guidelines, number of appropriate alerts sent), Adoption (proportion of clinicians utilizing physiologic data per shift, clinical actions in response to alerts), Implementation (fidelity to monitoring protocol), Maintenance (sustainability of implementation over time). We will also perform in-depth qualitative interviews with up to 30 women and 30 clinicians participating in the study. DISCUSSION: This is the first hybrid-effectiveness study of wireless physiologic monitoring in an obstetric population. This study offers insights into use of wireless monitoring systems in low resource-settings, as well as normal and abnormal physiologic parameters among women delivering by cesarean. TRIAL REGISTRATION: ClinicalTrials.gov , NCT04060667 . Registered on 08/01/2019.


Assuntos
Cesárea/efeitos adversos , Serviços de Saúde Materna , Monitorização Fisiológica/métodos , Hemorragia Pós-Parto/prevenção & controle , Adulto , Feminino , Humanos , Mortalidade Materna , Monitorização Fisiológica/instrumentação , Gravidez , Avaliação de Programas e Projetos de Saúde , Centros de Atenção Terciária
10.
Matern Child Health J ; 25(2): 311-320, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33201450

RESUMO

OBJECTIVES: Antenatal care (ANC) is designed to improve pregnancy outcomes by providing screening and treatment for preventable and treatable diseases. However, data are lacking on whether ANC affects stillbirth risk. We hypothesized stillbirth risk in Uganda is lower in women attending the recommended ≥ 4 ANC visits compared to those attending ≤ 3. METHODS: We performed a secondary analysis of subset of 1,785 women enrolled in a prospective cohort of postpartum infection who presented to a regional referral hospital for delivery. Our primary outcome was documented stillbirth; a secondary composite poor birth outcome included stillbirth, early neonatal death, low birth weight (< 2500 g), and 5-min APGAR score < 7. We performed multivariable logistic regression analyses to identify independent correlates of stillbirth and poor birth outcome. RESULTS: Of 1,785 participants, 58 (3%) pregnancies resulted in stillbirth and 198 (11%) had a poor birth outcome. Of 1,236 women attending ≥ 4 ANC visits, 31 (2.5%) had a stillbirth, compared to 27/510 (5.2%) attending ≤ 3. In multivariable analyses controlling for age, parity, distance traveled, referral status to hospital, malaria prophylaxis, and syphilis infection; attending ≥ 4 ANC visits was associated with significantly reduced odds of stillbirth (aOR 0.5, 95% CI 0.3-0.9, P = 0.02) and poor birth outcome (aOR 0.66, 95% CI 0.4-0.96, P = 0.03). Malaria prophylaxis was also independently associated with reduced odds of stillbirth (aOR 0.05, 95% CI 0.2-1.0, P = 0.04). CONCLUSIONS: Attending ≥ 4 ANC visits was associated with reduced odds of stillbirth and poor birth outcomes in this Ugandan cohort, which may be related to more comprehensive infection screening, treatment, and prevention services.


Assuntos
Instituições de Assistência Ambulatorial/estatística & dados numéricos , Resultado da Gravidez/epidemiologia , Cuidado Pré-Natal/estatística & dados numéricos , População Rural/estatística & dados numéricos , Adulto , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Morte Perinatal , Gravidez , Nascimento Prematuro , Cuidado Pré-Natal/métodos , Estudos Prospectivos , Características de Residência , Natimorto , Uganda/epidemiologia , Adulto Jovem
11.
BMC Med Res Methodol ; 20(1): 215, 2020 08 26.
Artigo em Inglês | MEDLINE | ID: mdl-32842979

RESUMO

BACKGROUND: Collection of biospecimens is a critical first step to understanding the impact of COVID-19 on pregnant women and newborns - vulnerable populations that are challenging to enroll and at risk of exclusion from research. We describe the establishment of a COVID-19 perinatal biorepository, the unique challenges imposed by the COVID-19 pandemic, and strategies used to overcome them. METHODS: A transdisciplinary approach was developed to maximize the enrollment of pregnant women and their newborns into a COVID-19 prospective cohort and tissue biorepository, established on March 19, 2020 at Massachusetts General Hospital (MGH). The first SARS-CoV-2 positive pregnant woman was enrolled on April 2, and enrollment was expanded to SARS-CoV-2 negative controls on April 20. A unified enrollment strategy with a single consent process for pregnant women and newborns was implemented on May 4. SARS-CoV-2 status was determined by viral detection on RT-PCR of a nasopharyngeal swab. Wide-ranging and pregnancy-specific samples were collected from maternal participants during pregnancy and postpartum. Newborn samples were collected during the initial hospitalization. RESULTS: Between April 2 and June 9, 100 women and 78 newborns were enrolled in the MGH COVID-19 biorepository. The rate of dyad enrollment and number of samples collected per woman significantly increased after changes to enrollment strategy (from 5 to over 8 dyads/week, P < 0.0001, and from 7 to 9 samples, P < 0.01). The number of samples collected per woman was higher in SARS-CoV-2 negative than positive women (9 vs 7 samples, P = 0.0007). The highest sample yield was for placenta (96%), umbilical cord blood (93%), urine (99%), and maternal blood (91%). The lowest-yield sample types were maternal stool (30%) and breastmilk (22%). Of the 61 delivered women who also enrolled their newborns, fewer women agreed to neonatal blood compared to cord blood (39 vs 58, P < 0.0001). CONCLUSIONS: Establishing a COVID-19 perinatal biorepository required patient advocacy, transdisciplinary collaboration and creative solutions to unique challenges. This biorepository is unique in its comprehensive sample collection and the inclusion of a control population. It serves as an important resource for research into the impact of COVID-19 on pregnant women and newborns and provides lessons for future biorepository efforts.


Assuntos
Betacoronavirus , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/psicologia , Participação do Paciente , Pneumonia Viral/diagnóstico , Pneumonia Viral/psicologia , Complicações Infecciosas na Gravidez/diagnóstico , Manejo de Espécimes , Adulto , COVID-19 , Feminino , Humanos , Recém-Nascido , Pandemias , Seleção de Pacientes , Assistência Perinatal , Gravidez , Complicações Infecciosas na Gravidez/psicologia , SARS-CoV-2
12.
BMC Pregnancy Childbirth ; 18(1): 270, 2018 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-29954356

RESUMO

BACKGROUND: There is a paucity of recent prospective data on the incidence of postpartum infections and associated risk factors in sub-Saharan Africa. Retrospective studies estimate that puerperal sepsis causes approximately 10% of maternal deaths in Africa. METHODS: We enrolled 4231 women presenting to a Ugandan regional referral hospital for delivery or postpartum care into a prospective cohort and measured vital signs postpartum. Women developing fever (> 38.0 °C) or hypothermia (< 36.0 °C) underwent symptom questionnaire, structured physical exam, malaria testing, blood, and urine cultures. Demographic, treatment, and post-discharge outcomes data were collected from febrile/hypothermic women and a random sample of 1708 normothermic women. The primary outcome was in-hospital postpartum infection. Multivariable logistic regression was used to determine factors independently associated with postpartum fever/hypothermia and with confirmed infection. RESULTS: Overall, 4176/4231 (99%) had ≥1 temperature measured and 205/4231 (5%) were febrile or hypothermic. An additional 1708 normothermic women were randomly selected for additional data collection, for a total sample size of 1913 participants, 1730 (90%) of whom had complete data. The mean age was 25 years, 214 (12%) were HIV-infected, 874 (51%) delivered by cesarean and 662 (38%) were primigravidae. Among febrile/hypothermic participants, 174/205 (85%) underwent full clinical and microbiological evaluation for infection, and an additional 24 (12%) had a partial evaluation. Overall, 84/4231 (2%) of participants met criteria for one or more in-hospital postpartum infections. Endometritis was the most common, identified in 76/193 (39%) of women evaluated clinically. Twenty-five of 175 (14%) participants with urinalysis and urine culture results met criteria for urinary tract infection. Bloodstream infection was diagnosed in 5/185 (3%) participants with blood culture results. Another 5/186 (3%) tested positive for malaria. Cesarean delivery was independently associated with incident, in-hospital postpartum infection (aOR 3.9, 95% CI 1.5-10.3, P = 0.006), while antenatal clinic attendance was associated with reduced odds (aOR 0.4, 95% CI 0.2-0.9, P = 0.02). There was no difference in in-hospital maternal deaths between the febrile/hypothermic (1, 0.5%) and normothermic groups (0, P = 0.11). CONCLUSIONS: Among rural Ugandan women, postpartum infection incidence was low overall, and cesarean delivery was independently associated with postpartum infection while antenatal clinic attendance was protective.


Assuntos
Infecção Puerperal/epidemiologia , Adulto , Estudos de Coortes , Feminino , Febre/etiologia , Humanos , Hipotermia/etiologia , Incidência , Gravidez , Prognóstico , Estudos Prospectivos , Infecção Puerperal/etiologia , Encaminhamento e Consulta/estatística & dados numéricos , Fatores de Risco , Uganda/epidemiologia
15.
BMJ Glob Health ; 9(1)2024 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-38176746

RESUMO

Coloniality in global health manifests as systemic inequalities, not based on merit, that benefit one group at the expense of another. Global surgery seeks to advance equity by inserting surgery into the global health agenda; however, it inherits the biases in global health. As a diverse group of global surgery practitioners, we aimed to examine inequities in global surgery. Using a structured, iterative, group Delphi consensus-building process drawing on the literature and our lived experiences, we identified five categories of non-merit inequalities in global surgery. These include Western epistemology, geographies of inequity, unequal participation, resource extraction, and asymmetric power and control. We observed that global surgery is dominated by Western biomedicine, characterised by the lack of interprofessional and interspecialty collaboration, incorporation of Indigenous medical systems, and social, cultural, and environmental contexts. Global surgery is Western-centric and exclusive, with a unidirectional flow of personnel from the Global North to the Global South. There is unequal participation by location (Global South), gender (female), specialty (obstetrics and anaesthesia) and profession ('non-specialists', non-clinicians, patients and communities). Benefits, such as funding, authorship and education, mostly flow towards the Global North. Institutions in the Global North have disproportionate control over priority setting, knowledge production, funding and standards creation. This naturalises inequities and masks upstream resource extraction. Guided by these five categories, we concluded that shifting global surgery towards equity entails building inclusive, pluralist, polycentric models of surgical care by providers who represent the community, with resource controlled and governance driven by communities in each setting.


Assuntos
Colonialismo , Saúde Global , Disparidades em Assistência à Saúde , Procedimentos Cirúrgicos Operatórios , Humanos
16.
Anemia ; 2024: 5320330, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38596653

RESUMO

Introduction: The global prevalence of maternal anemia is about 42%, and in sub-Saharan Africa, the prevalence of newborn anemia ranges from 25% to 30%. Anemia in newborn babies may cause complications such as delayed brain maturation and arrested growth. However, there is limited data on the prevalence of newborn anemia and its risk factors in people living in resource-limited settings. Objectives: We determined the prevalence and risk factors for newborn anemia and its correlation with maternal anemia in southwestern Uganda. Methods: This was a cross sectional study of 352 pregnant women presenting to the Mbarara Regional Referral Hospital for delivery. We collected maternal blood in labor and umbilical cord blood from the placental vein. We measured hemoglobin using a point-of-care Hemocue machine. We used summary statistics to characterize the study participants and compared demographic characteristics and outcomes using chi-square, t-test, and Wilcoxon rank sum analyses. We defined newborn anemia as umbilical cord hemoglobin <13 g/dl and measured the relationship between maternal and umbilical cord hemoglobin using linear regression analysis. Results: The prevalence of newborn anemia was 17%. Maternal parity was significantly higher for anemic than nonanemic newborns (3 versus 2, P=0.01). The mean age in years (SD) was significantly lower for participants with umbilical cord hemoglobin <13 g/dl than those ≥13 g/dl (26 years [5.6] versus 28 [6.3], P=0.01). In multivariable linear regression analysis, a 1-point decrease in maternal hemoglobin was associated with a 0.14-point decrease in umbilical cord hemoglobin (P=0.02). Each one-unit increase in parity was associated with a 0.25-point decrease in umbilical cord hemoglobin (P=0.01). Cesarean delivery was associated with a 0.46-point lower umbilical cord hemoglobin level compared with vaginal delivery (P=0.03). Conclusions: We found a significant association between maternal and newborn hemoglobin, underscoring the importance of preventing and correcting maternal anemia in pregnancy. Furthermore, maternal anemia should be considered a risk factor for neonatal anemia.

17.
Sci Rep ; 14(1): 10980, 2024 05 14.
Artigo em Inglês | MEDLINE | ID: mdl-38744864

RESUMO

During pregnancy, multiple immune regulatory mechanisms establish an immune-tolerant environment for the allogeneic fetus, including cellular signals called cytokines that modify immune responses. However, the impact of maternal HIV infection on these responses is incompletely characterized. We analyzed paired maternal and umbilical cord plasma collected during labor from 147 people with HIV taking antiretroviral therapy and 142 HIV-uninfected comparators. Though cytokine concentrations were overall similar between groups, using Partial Least Squares Discriminant Analysis we identified distinct cytokine profiles in each group, driven by higher IL-5 and lower IL-8 and MIP-1α levels in pregnant people with HIV and higher RANTES and E-selectin in HIV-unexposed umbilical cord plasma (P-value < 0.01). Furthermore, maternal RANTES, SDF-α, gro α -KC, IL-6, and IP-10 levels differed significantly by HIV serostatus (P < 0.01). Although global maternal and umbilical cord cytokine profiles differed significantly (P < 0.01), umbilical cord plasma profiles were similar by maternal HIV serostatus. We demonstrate that HIV infection is associated with a distinct maternal plasma cytokine profile which is not transferred across the placenta, indicating a placental role in coordinating local inflammatory response. Furthermore, maternal cytokine profiles in people with HIV suggest an incomplete shift from Th2 to Th1 immune phenotype at the end of pregnancy.


Assuntos
Citocinas , Infecções por HIV , Complicações Infecciosas na Gravidez , Humanos , Gravidez , Feminino , Infecções por HIV/sangue , Infecções por HIV/imunologia , Infecções por HIV/virologia , Citocinas/sangue , Adulto , Complicações Infecciosas na Gravidez/sangue , Complicações Infecciosas na Gravidez/imunologia , Complicações Infecciosas na Gravidez/virologia , Uganda , Sangue Fetal/metabolismo , Adulto Jovem
18.
Int J Surg ; 110(2): 733-739, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38051926

RESUMO

BACKGROUND: Strengthening health systems through planned safety and quality improvement initiatives is an imperative to achieve more equitable, resilient, and effective care. And yet, years of organizational behavior research demonstrate that change initiatives often fall short because managers fail to account for organizational readiness for change. This finding remains true especially among surgical safety and quality improvement initiatives in low-income countries and middle-income countries. In this study, our aim was to psychometrically assess the construct validity and internal consistency of the Safe Surgery Organizational Readiness Tool (SSORT), a short survey tool designed to provide change leaders with insight into facility infrastructure that supports learning and readiness to undertake change. MATERIALS AND METHODS: To demonstrate generalizability and achieve a large sample size ( n =1706) to conduct exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), a collaboration between seven surgical and anesthesia safety and quality improvement initiatives was formed. Collected survey data from health care workers were divided into pilot, exploration, and confirmation samples. The pilot sample was used to assess feasibility. The exploration sample was used to conduct EFA, while the confirmation sample was used to conduct CFA. Factor internal consistency was assessed using Cronbach's alpha coefficient. RESULTS: Results of the EFA retained 9 of the 16 proposed factors associated with readiness to change. CFA results of the identified 9 factor model, measured by 28 survey items, demonstrated excellent fit to data. These factors (appropriateness, resistance to change, team efficacy, team learning orientation, team valence, communication about change, learning environment, vision for sustainability, and facility capacity) were also found to be internally consistent. CONCLUSION: Our findings suggest that communication, team learning, and supportive environment are components of change readiness that can be reliably measured prior to implementation of projects that promote surgical safety and quality improvement in low-income countries and middle-income countries. Future research can link performance on identified factors to outcomes that matter most to patients.


Assuntos
Gestão de Mudança , Pessoal de Saúde , Humanos , Psicometria , Estudos Transversais , Inquéritos e Questionários , Reprodutibilidade dos Testes
19.
Res Sq ; 2023 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-37461715

RESUMO

Introduction: The global prevalence of anemia in pregnancy is about 42%, and in sub-Saharan Africa, the prevalence of newborn anemia ranges from 25-30%. Anemia in newborn babies may cause complications such as delayed brain maturation and arrested growth. However, there is limited data on prevalence of newborn anemia and its risk factors in people living in resource-limited settings. Objectives: We determined the prevalence and risk factors for newborn anemia and its correlation with maternal anemia in southwestern Uganda. Methods: This was a prospective cohort study of 352 pregnant women presenting to Mbarara Regional Referral Hospital for delivery. We collected maternal blood in labor and umbilical cord blood from the placental vein, as a proxy for newborn hemoglobin. We estimated hemoglobin using a point-of-care Hemocue machine. We used summary statistics to characterize the cohort, and compared demographic characteristics and outcomes using Chi-square, t-test, and Wilcoxon Ranksum analyses. We defined newborn anemia as umbilical cord hemoglobin < 13g/dl and estimated the relationship between maternal and umbilical cord hemoglobin using linear regression analysis, adjusting for potential confounders. Results: The prevalence of newborn anemia was 17%. The average maternal parity was significantly higher for anemic and non-anemic newborns (3.5 versus 2.8, P = 0.01). Mean age [SD] was significantly lower for participants with umbilical cord hemoglobin < 13g/dl than those > = 13 g/dl, (26 [5.6] versus 28 [6.3], P = 0.01). In multivariable linear regression analysis, a 1-point decrease in maternal hemoglobin was associated with a 0.14-point decrease in umbilical cord hemoglobin (P = 0.02). Each one-unit increase in maternal parity was associated with a 0.25-point decrease in umbilical cord hemoglobin (P = 0.01). Cesarean delivery was associated with a 0.46-point lower umbilical cord hemoglobin level compared to vaginal delivery (P = 0.03). Conclusions: We found a significant correlation between maternal and newborn hemoglobin levels, underscoring the importance of preventing and correcting maternal anemia in pregnancy. Furthermore, maternal anemia should be considered a risk factor neonatal anemia.

20.
J Matern Fetal Neonatal Med ; 36(1): 2190834, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37312571

RESUMO

PURPOSE: Maternal anemia is a significant risk factor for maternal morbidity and mortality, increasing risk of preterm birth, intrauterine growth restriction, stillbirth, and death. Moderate and severe anemia in pregnancy is defined as hemoglobin (Hb) <10 g/dl and Hb < 7 g/dl, respectively. We aimed to characterize the association of maternal anemia with maternal, neonatal, and placental outcomes in a resource-limited setting. METHODS: Data were collected from a prospective cohort of 352 pregnant women at a tertiary academic Ugandan hospital. One hundred and seventy-six (50%) of women were living with HIV. Hemoglobin was measured in labor, and placentas were collected postpartum. Maternal outcomes included mode of delivery, hemorrhage, blood transfusion, intensive care unit admission, and maternal mortality. Neonatal outcomes included gestational age at delivery, birthweight, stillbirth, and neonatal mortality. Placental descriptors included weight and thickness. Categorical variables were analyzed using Chi-squared and Fisher's exact tests. RESULTS: Hemoglobin < 10 g/dl, was present in 17/352 (5%) of women. Significantly more women with moderate or severe anemia were HIV-infected: 14/17 (82%) versus 162/335 (48%) (p = .006). Blood transfusions (2/17, 12% versus 5/335, 2%, p = .04) and neonatal deaths (2/17, 12% versus 9/335, 3%, p = .01) were more common in the anemia group. Placental thickness was lower in the anemia group (1.4 cm versus 1.7 cm, p = .04). CONCLUSIONS: Moderate and severe anemia was associated with maternal HIV infection, maternal blood transfusion, neonatal death, and decreased placental thickness. The overall rate of moderate and severe anemia among this cohort was lower than previously reported.


Assuntos
Anemia , Infecções por HIV , Morte Perinatal , Nascimento Prematuro , Recém-Nascido , Gravidez , Feminino , Humanos , Uganda/epidemiologia , Natimorto , Infecções por HIV/complicações , Estudos Prospectivos , Placenta , Nascimento Prematuro/epidemiologia , Anemia/complicações , Anemia/epidemiologia
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