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1.
J Public Health Afr ; 13(3): 1435, 2022 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-36277948

RESUMO

On March 22, 2020, the World Health Organization (WHO) pro- claimed the severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2 or Covid-19), and the virus has had global impact, with sig- nificant mortality rates observed in high-income countries (HICs) in Europe and the United States (USA). Numerous low- and middle-income countries (LMICs) have signifi- cant unmet healthcare demands, and citizens frequently experience the negative repercussions of their inadequate health care systems. Nigeria, the most populous nation in Africa with an estimated 200 million inhabitants, is not an exception. With the lessons from the 2014 Ebola pandemic in West African states still vivid, procedures such as temperature checks at international airports and medical and travel history questionnaires were swiftly implemented begin- ning in early February 2020.

2.
Lancet HIV ; 9(3): e160-e171, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35245508

RESUMO

BACKGROUND: Studies have shown increased mortality among women living with HIV diagnosed with breast cancer compared with HIV-negative women with breast cancer. We aimed to examine how this HIV differential varies by patient or breast tumour characteristics. METHODS: The African Breast Cancer-Disparities in Outcomes (ABC-DO) study is a prospective cohort of women (aged ≥18 years) with incident breast cancer recruited consecutively at diagnosis (2014-17) from hospitals in Namibia, Nigeria, South Africa, Uganda, and Zambia. Detailed clinical and epidemiological data, including self-reported or tested HIV status, were collected at baseline. Participants were actively followed up via telephone calls every 3 months. The primary outcome was all-cause mortality, assessed in all women who had at least one updated vital status after baseline interview. Using Cox regression, we examined differences in overall survival by HIV status in the cohort, and across country and patient subgroups, adjusted for age, tumour grade, and tumour stage at cancer diagnosis. FINDINGS: Between Sept 8, 2014, and Dec 31, 2017, we recruited 2154 women with primary breast cancer, 519 of whom were excluded due to their countries having small numbers of women with HIV for comparison. Among the remaining 1635 women, 313 (19%) were living with HIV, 1184 (72%) were HIV negative, and 138 (9%) had unknown HIV status. At breast cancer diagnosis, women with HIV were younger and had lower body-mass index (BMI) than their HIV-negative counterparts, but had similar tumour stage, grade, and receptor subtypes. At the end of the follow-up (Jan 1, 2019), a higher proportion of women with HIV (137 [44%] of 313) had died than had HIV-negative women (432 [37%] of 1184). Crude 3-year survival was 9% lower for women with HIV (46% [95% CI 40-53]) than for HIV-negative women (55% [52-59]; hazard ratio (HR) 1·41 [1·15-1·74]). The HIV survival differential did not differ by age, BMI, tumour subtype, or tumour grade, but was stronger in women with non-metastatic disease (3-year survival 52% HIV-positive vs 63% HIV-negative women, adjusted HR 1·65 [1·30-2·10]), whereas women with metastatic cancer had low survival, regardless of HIV status. INTERPRETATION: The larger survival deficit among women with HIV with non-metastatic breast cancer calls for a better understanding of the reasons underlying this differential (eg, biological mechanisms, health behaviours, detrimental HIV-breast cancer treatment interactions, or higher HIV background mortality) to inform strategies for reducing mortality among this patient group. FUNDING: Susan G Komen, International Agency for Research on Cancer, National Cancer Institute, and UK-Commonwealth Scholarships.


Assuntos
Neoplasias da Mama , Infecções por HIV , Adolescente , Adulto , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Estudos de Coortes , Feminino , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Estudos Prospectivos , África do Sul/epidemiologia
3.
Int J Cancer ; 148(2): 340-351, 2021 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-32663320

RESUMO

Most breast cancer patients in sub-Saharan Africa are diagnosed at advanced stages after prolonged symptomatic periods. In the multicountry African Breast Cancer-Disparities in Outcomes cohort, we dissected the diagnostic journey to inform downstaging interventions. At hospital presentation for breast cancer, women recalled their diagnostic journey, including dates of first noticing symptoms and health-care provider (HCP) visits. Negative binomial regression models were used to identify correlates of the length of the diagnostic journey. Among 1429 women, the median (inter-quartile range) length (months) of the diagnostic journey ranged from 11.3 (5.7-21.2) in Ugandan, 8.2 (3.4-16.4) in Zambian, 6.5 (2.4-15.7) in Namibian-black to 5.6 (2.3-13.1) in Nigerian and 2.4 (0.6-5.5) in Namibian-non-black women. Time from first HCP contact to diagnosis represented, on average, 58% to 79% of the diagnostic journey in each setting except Nigeria where most women presented directly to the diagnostic hospital with advanced disease. The median number of HCPs visited was 1 to 4 per woman, but time intervals between visits were long. Women who attributed their initial symptoms to cancer had a 4.1 months (absolute) reduced diagnostic journey than those who did not, while less-educated (none/primary) women had a 3.6 months longer journey than more educated women. In most settings the long journey to breast cancer diagnosis was not primarily due to late first presentation but to prolonged delays after first presentation to diagnosis. Promotion of breast cancer awareness and implementation of accelerated referral pathways for women with suspicious symptoms are vital to downstaging the disease in the region.


Assuntos
Neoplasias da Mama/diagnóstico , África Subsaariana/epidemiologia , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/patologia , Neoplasias da Mama/terapia , Estudos de Coortes , Diagnóstico Tardio , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Análise de Regressão , Fatores Socioeconômicos
4.
JAMA Oncol ; 7(2): 285-289, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33355599

RESUMO

IMPORTANCE: Low breast cancer survival in sub-Saharan Africa's young population increases the likelihood that breast cancer deaths result in maternal orphans, ie, children (<18 years) losing their mother. OBJECTIVE: To estimate the number of maternal orphans and their ages for every 100 breast cancer deaths in sub-Saharan African settings during 2014-2019 and to describe family concerns about the orphaned children. DESIGN, SETTING, AND PARTICIPANTS: Deaths occurring between September 1, 2014, and July 1, 2019, in the African Breast Cancer-Disparities in Outcomes (ABC-DO) were examined in a cohort of women diagnosed with breast cancer during 2014-2017 at major cancer treatment hospitals in Namibia, Nigeria, Uganda, and Zambia. The cohort was actively followed up for vital status via a trimonthly mobile phone call to each woman or her next of kin (typically a partner, husband, or child). MAIN OUTCOMES AND MEASURES: The number (Poisson counts) and ages of new orphans at the time of maternal death. RESULTS: This cohort study found that a total of 795 deaths resulted in 964 new maternal orphans, with deaths occurring in women younger than 50 years accounting for 85% of the orphans. For every 100 deaths in women younger than 50 years, there were 210 new orphans (95% CI, 196-225) overall, with country-specific estimates of 189 in Nigerian, 180 in Namibian, 222 in Ugandan, and 247 in Zambian Black women. For every 100 deaths of the women at any age, there were 121 maternal orphans, 17% of whom were younger than 5 years, 32% aged 5 to 9 years, and 51% aged 10 to 17 years at the time of maternal death. In follow-up interviews, families' concerns for children's education and childcare were reported to be exacerbated by the financial expenses associated with cancer treatment. CONCLUSIONS AND RELEVANCE: This study provides evidence that the number of maternal orphans due to breast cancer exceeds the number of breast cancer deaths among women in sub-Saharan Africa. The intergenerational consequences associated with cancer deaths in sub-Saharan Africa appear to be large and support the need for continued action to improve survival.


Assuntos
Neoplasias da Mama , Crianças Órfãs , Adolescente , África Subsaariana/epidemiologia , Neoplasias da Mama/epidemiologia , Criança , Pré-Escolar , Estudos de Coortes , Família , Feminino , Humanos
5.
Int J Cancer ; 148(9): 2158-2170, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-33180326

RESUMO

The presence of preexisting morbidities poses a challenge to cancer patient care. There is little information on the profile and prevalence of multi-morbidities in breast cancer patients across middle income countries (MIC) to lower income countries (LIC) in sub-Saharan Africa (SSA). The African Breast Cancer-Disparities in Outcomes (ABC-DO) breast cancer cohort spans upper MICs South Africa and Namibia, lower MICs Zambia and Nigeria and LIC Uganda. At cancer diagnosis, seven morbidities were assessed: obesity, hypertension, diabetes, asthma/chronic obstructive pulmonary disease, heart disease, tuberculosis and HIV. Logistic regression models were used to assess determinants of morbidities and the influence of morbidities on advanced stage (stage III/IV) breast cancer diagnosis. Among 2189 women, morbidity prevalence was the highest for obesity (35%, country-specific range 15-57%), hypertension (32%, 15-51%) and HIV (16%, 2-26%) then for diabetes (7%, 4%-10%), asthma (4%, 2%-10%), tuberculosis (4%, 0%-8%) and heart disease (3%, 1%-7%). Obesity and hypertension were more common in upper MICs and in higher socioeconomic groups. Overall, 27% of women had at least two preexisting morbidities. Older women were more likely to have obesity (odds ratio: 1.09 per 10 years, 95% CI 1.01-1.18), hypertension (1.98, 1.81-2.17), diabetes (1.51, 1.32-1.74) and heart disease (1.69, 1.37-2.09) and were less likely to be HIV positive (0.64, 0.58-0.71). Multi-morbidity was not associated with stage at diagnosis, with the exception of earlier stage in obese and hypertensive women. Breast cancer patients in higher income countries and higher social groups in SSA face the additional burden of preexisting non-communicable diseases, particularly obesity and hypertension, exacerbated by HIV in Southern/Eastern Africa.


Assuntos
Neoplasias da Mama/epidemiologia , África Subsaariana , Neoplasias da Mama/mortalidade , Feminino , Disparidades em Assistência à Saúde , Humanos , Avaliação de Resultados em Cuidados de Saúde , Análise de Sobrevida
6.
Int J Cancer ; 148(9): 2212-2226, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-33197280

RESUMO

We examined the geospatial dimension of delays to diagnosis of breast cancer in a prospective study of 1541 women newly diagnosed in the African Breast Cancer-Disparities in Outcomes (ABC-DO) Study. Women were recruited at cancer treatment facilities in Namibia, Nigeria, Uganda and Zambia. The baseline interview included information used to generate the geospatial features: urban/rural residence, travel mode to treatment facility and straight-line distances from home to first-care provider and to diagnostic/treatment facility, categorized into country/ethnicity (population)-specific quartiles. These factors were investigated in relation to delay in diagnosis (≥3 months since first symptom) and late stage at diagnosis (TNM: III, IV) using logistic regression, adjusted for population group and sociodemographic characteristics. The median (interquartile range) distances to first provider and diagnostic and treatment facilities were 5 (1-37), 17 (3-105) and 62 (5-289) km, respectively. The majority had a delay in diagnosis (74%) and diagnosis at late stage (64%). Distance to first provider was not associated with delay in diagnosis or late stage at diagnosis. Rural residence was associated with delay, but the association did not persist after adjustment for sociodemographic characteristics. Distance to the diagnostic/treatment facility was associated with delay (highest vs lowest quartile: odds ratio (OR) = 1.56, 95% confidence interval (CI) = 1.08-2.27) and late stage (overall: OR = 1.47, CI = 1.05-2.06; without Nigerian hospitals where mostly local residents were treated: OR = 1.73, CI = 1.18-2.54). These findings underscore the need for measures addressing the geospatial barriers to early diagnosis in sub-Saharan African settings, including providing transport or travel allowance and decentralizing diagnostic services.


Assuntos
Neoplasias da Mama/epidemiologia , Disparidades em Assistência à Saúde/normas , África Subsaariana , Estudos de Coortes , Feminino , Humanos , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos
7.
Lancet Glob Health ; 8(9): e1203-e1212, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32827482

RESUMO

BACKGROUND: Breast cancer is the second leading cause of death from cancer in women in sub-Saharan Africa, yet there are few well characterised large-scale survival studies with complete follow-up data. We aimed to provide robust survival estimates in women in this setting and apportion the survival gaps. METHODS: The African Breast Cancer-Disparities in Outcomes (ABC-DO) prospective cohort study was done at eight hospitals across five sub-Saharan African countries (Namibia, Nigeria, South Africa, Uganda, and Zambia). We prospectively recruited women (aged ≥18 years) who attended these hospitals with suspected breast cancer. Women were actively followed up by use of a telephone call once every 3 months, and a mobile health application was used to keep a dynamic record of follow-up calls due. We collected detailed sociodemographic, clinical, and treatment data. The primary outcome was 3-year overall survival, analysed by use of flexible proportional mortality models, and we predicted survival under scenarios of modified distributions of risk factors. FINDINGS: Between Sept 8, 2014, and Dec 31, 2017, 2313 women were recruited from these eight hospitals, of whom 85 did not have breast cancer. Of the remaining 2228 women with breast cancer, 58 women with previous treatment or recurrence, and 14 women from small racial groups (white and Asian women in South Africa), were excluded. Of the 2156 women analysed, 1840 (85%) were histologically confirmed, 129 (6%) were cytologically confirmed, and 187 (9%) were clinically confirmed to have breast cancer. 2156 (97%) women were followed up for up to 3 years or up to Jan 1, 2019, whichever was earlier. Up to this date, 879 (41%) of these women had died, 1118 (52%) were alive, and 159 (7%) were censored early. 3-year overall survival was 50% (95% CI 48-53), but we observed variations in 3-year survival between different races in Namibia (from 90% in white women to 56% in Black women) and in South Africa (from 76% in mixed-race women to 59% in Black women), and between different countries (44-47% in Uganda and Zambia vs 36% in Nigeria). 215 (10%) of all women had died within 6 months of diagnosis, but 3-year overall survival remained low in women who survived to this timepoint (58%). Among survival determinants, improvements in early diagnosis and treatment were predicted to contribute to the largest increases in survival, with a combined absolute increase in survival of up to 22% in Nigeria, Zambia, and Uganda, when compared with the contributions of other factors (such as HIV or aggressive subtypes). INTERPRETATION: Large variations in breast cancer survival in sub-Saharan African countries indicate that improvements are possible. At least a third of the projected 416 000 breast cancer deaths that will occur in this region in the next decade could be prevented through achievable downstaging and improvements in treatment. Improving survival in socially disadvantaged women warrants special attention. FUNDING: Susan G Komen and the International Agency for Research on Cancer.


Assuntos
Neoplasias da Mama/mortalidade , Adulto , África Subsaariana/epidemiologia , Idoso , Neoplasias da Mama/terapia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Taxa de Sobrevida
8.
Am J Epidemiol ; 189(10): 1185-1196, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32383449

RESUMO

Accurate survival estimates are needed for guiding cancer control efforts in sub-Saharan Africa, but previous studies have been hampered by unknown biases due to excessive loss to follow-up (LTFU). In the African Breast Cancer-Disparities in Outcomes Study, a prospective breast cancer cohort study, we implemented active mobile health follow-up, telephoning each woman or her next-of-kin (NOK) trimonthly on her mobile phone to update information on her vital status. Dates of every contact with women/NOK were analyzed from diagnosis in 2014-2017 to the earliest of September 1, 2018, death, or 3 years postdiagnosis. The cumulative incidence of being LTFU was calculated considering deaths as competing events. In all, 1,490 women were followed for a median of 24.2 (interquartile range (IQR), 14.2-34.5) months, corresponding to 8,529 successful contacts (77% of total contacts) with the women/NOK. Median time between successful contacts was 3.0 (IQR, 3.0-3.7) months. In all, 71 women (5.3%) were LTFU at 3 years: 0.8% in Nigeria, 2.2% in Namibia, and 5.6% in Uganda. Because of temporary discontinuity of active follow-up, 20.3% of women were LTFU after 2 years in Zambia. The median time to study notification of a death was 9.1 (IQR, 3.9-14.0) weeks. Although the present study was not a randomized controlled trial, in this cancer cohort with active mobile health follow-up, LTFU was much lower than in previous studies and enabled estimation of up-to-date and reliable cancer survival.


Assuntos
Neoplasias da Mama/epidemiologia , Sobreviventes de Câncer/estatística & dados numéricos , Perda de Seguimento , Telemedicina/estatística & dados numéricos , Adulto , África Subsaariana/epidemiologia , Idoso , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos
9.
Breast Cancer Res ; 21(1): 93, 2019 08 13.
Artigo em Inglês | MEDLINE | ID: mdl-31409419

RESUMO

BACKGROUND: Improving breast cancer survival in sub-Saharan Africa (SSA) is urgently needed, requiring early diagnosis and improved access to treatment. However, data on the types of and barriers to receiving breast cancer therapy in this region are limited and have not been compared between different SSA countries and treatment settings. METHODS: In different health care settings across Uganda, Nigeria and Namibian sites of the prospective African Breast Cancer - Disparities in Outcomes cohort study, we assessed the percentage of newly diagnosed breast cancer patients who received treatment (systemic, surgery and/or radiotherapy) for cancer and their socio-demographic and clinical determinants. Treatment data were systematically extracted from medical records, as well as self-reported by women during 6-month follow-up interviews, and were used to generate a binary indicator of treatment received within 12 months of diagnosis (yes/no), which was analysed via logistic regression. RESULTS: Of 1325 women, cancer treatment had not been initiated treatment within 1 year of diagnosis for 227 (17%) women and 185 (14%) of women with stage I-III disease. Untreated percentages were highest in two Nigerian regional hospitals where 38% of 314 women were not treated (32% among stage I-III). At a national referral hospital in Uganda, 18% of 430 women were not treated (15% among stage I-III). In contrast, at a cancer care centre in Windhoek, Namibia, where treatment is provided free to the patient, all non-black (100%) and almost all (98.7%) black women had initiated treatment. Percentages of untreated women were higher in women from lower socio-economic groups, women who believed in traditional medicine and, in Uganda, in HIV+ women. Self-reported treatment barriers confirmed treatment costs and treatment refusal as contributors to not receiving treatment. CONCLUSIONS: Financial support to ensure treatment access and education of treatment benefits are needed to improve treatment access for breast cancer patients across sub-Saharan Africa, especially at regional treatment centres, for lower socio-economic groups, and for the HIV-positive woman with breast cancer.


Assuntos
Neoplasias da Mama/epidemiologia , Disparidades em Assistência à Saúde , África Subsaariana/epidemiologia , Fatores Etários , Idoso , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Comorbidade , Gerenciamento Clínico , Feminino , Gastos em Saúde , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Razão de Chances , Avaliação de Resultados em Cuidados de Saúde , Prognóstico , Estudos Prospectivos , Fatores Socioeconômicos
10.
Cancer Causes Control ; 29(8): 721-730, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29980984

RESUMO

A greater understanding of the nature and drivers of poor breast cancer (BC) awareness in sub-Saharan Africa (SSA) will inform much needed awareness programmes. We aimed to assess the level and nature of BC awareness in the multi-country African Breast Cancer-Disparities in Outcome (ABC-DO) cohort of women newly diagnosed with BC during 2014-2017. Awareness indicators were assessed during a baseline interview at/near diagnosis. Logistic/ordinal regression was used to estimate odds ratios (OR) for indicators of BC awareness in relation to woman-level characteristics for individual settings and then meta-analyzed. In the 1,451 women included, almost all Namibian non-black women (n = 104) knew of BC and its curability, while in Namibian black and Zambian women, one in 7 (~ 15%) had not previously heard of BC and 25-40% did not know it was curable. In Uganda and Nigeria awareness was lowest: one in four women had no BC awareness, and 2 in 3 had no knowledge of its cure potential. Low educational level, unskilled employment, low socioeconomic position, rural residence, older age, being unmarried, and in some settings HIV-positivity, were associated with lower BC awareness-e.g., having unskilled employment was associated with not having heard of BC (summary OR 3.37; 95% confidence interval (CI) 2.17-5.23), believing that it is incurable (2.43; 1.81-3.26), and not recognizing a breast lump symptom (1.85; 1.41-2.43) but with between-setting variation (I2 > 68% for all). The findings provide evidence of the level and difference in BC awareness and beliefs across different settings, highlighting the urgent need for context-specific education programmes in the SSA region.


Assuntos
Neoplasias da Mama , Conhecimentos, Atitudes e Prática em Saúde , África Subsaariana/epidemiologia , Estudos de Coortes , Feminino , Humanos
11.
Int J Cancer ; 142(8): 1568-1579, 2018 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-29197068

RESUMO

Breast cancer (BC) survival rates in sub-Saharan Africa (SSA) are low in part due to advanced stage at diagnosis. As one component of a study of the entire journey of SSA women with BC, we aimed to identify shared and setting-specific drivers of advanced stage BC. Women newly diagnosed in the multicountry African Breast Cancer-Disparities in Outcomes (ABC-DO) study completed a baseline interview and their stage information was extracted from medical records. Ordinal logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI) for advanced stage (I, II, III, IV) in relation to individual woman-level, referral and biological factors. A total of 1795 women were included from Nigeria, Uganda, Zambia, and the multiracial populations of Namibia and South Africa, 1091 of whom (61%) were stage III/IV. Stage was lower in women with greater BC knowledge (OR 0.77 (95% CI: 0.70, 0.85) per point on a 6 point scale). More advanced stage was associated with being black (4.00 (2.79, 5.74)), having attended

Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/patologia , África , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Estadiamento de Neoplasias/métodos , Razão de Chances , Grupos Populacionais , Estudos Prospectivos , Encaminhamento e Consulta
12.
BMJ Open ; 6(8): e011390, 2016 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-27554102

RESUMO

INTRODUCTION: Sub-Saharan African (SSA) women with breast cancer (BC) have low survival rates from this potentially treatable disease. An understanding of context-specific societal, health-systems and woman-level barriers to BC early detection, diagnosis and treatment are needed. METHODS: The African Breast Cancer-Disparities in Outcomes (ABC-DO) is a prospective hospital-based study of overall survival, impact on quality of life (QOL) and delays along the journey to diagnosis and treatment of BC in SSA. ABC-DO is currently recruiting in Namibia, Nigeria, South Africa, Uganda and Zambia. Women aged 18 years or older who present at participating secondary and tertiary hospitals with a new clinical or histocytological diagnosis of primary BC are invited to participate. For consented women, tumour characteristics, specimen and treatment data are obtained. Over a 2-year enrolment period, we aim to recruit 2000 women who, in the first instance, will be followed for between 1 and 3 years. A face-to-face baseline interview obtains information on socioeconomic, cultural and demographic factors, QOL, health and BC attitudes/knowledge, and timing of all prediagnostic contacts with caregivers in orthodox health, traditional and spiritual systems. Responses are immediately captured on mobile devices that are fed into a tailored mobile health (mHealth) study management system. This system implements the study protocol, by prompting study researchers to phone women on her mobile phone every 3 months and, failing to reach her, prompts contact with her next-of-kin. At follow-up calls, women provide updated information on QOL, care received and disease impacts on family and working life; date of death is asked of her next-of-kin when relevant. ETHICS AND DISSEMINATION: The study was approved by ethics committees of all involved institutions. All participants provide written informed consent. The findings from the study will be published in peer-reviewed scientific journals, presented to funders and relevant local organisations and at scientific conferences.


Assuntos
Neoplasias da Mama/mortalidade , Disparidades em Assistência à Saúde , Avaliação de Resultados em Cuidados de Saúde/métodos , Análise de Sobrevida , Adulto , África Subsaariana , Telefone Celular , Protocolos Clínicos , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Estudos Prospectivos , Qualidade de Vida , Fatores Socioeconômicos , Saúde da Mulher , Adulto Jovem
13.
Ann Surg Oncol ; 19(12): 3979-86, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22622474

RESUMO

PURPOSE: Macrophages play a major role in inflammatory processes and have been associated with poor prognosis in a variety of cancers, including breast cancer. Previously, we investigated the relationship of a subset of tumor-associated macrophages (PCNA(+) TAMs) with clinicopathologic characteristics of breast cancer. We reported that high PCNA(+) TAM counts were associated with hormone receptor (HR)-negative, high-grade tumors and early recurrence. To further understand the significance of elevated PCNA(+) TAMs and the functionality of TAMs, we examined the expression of S100A8/S100A9 with the antibody Mac387. The heterodimeric S100A8/S100A9 complex plays a role in inflammation and is increased in several cancer types. METHODS: We performed immunohistochemistry using the Mac387 antibody on 367 invasive human breast cancer cases. Results were compared to previous PCNA(+) TAM counts and were correlated with patient outcomes adjusting for HR status and histologic grade. RESULTS: Like PCNA(+) TAMs, high Mac387 counts were associated with HR negativity, high tumor grade, younger age, and decreased recurrence-free survival. Mac387, however, appears to identify both a subset of macrophages and a subset of tumor cells. The concordance between Mac387 and PCNA(+) TAM counts was low and cases that had both high Mac387 and high PCNA(+) TAMs counts had a stronger association with early recurrence. CONCLUSIONS: The presence of high numbers of PCNA(+) TAMs and Mac387-positive cells in breast cancers with poor outcomes may implicate a subset of TAMs in breast cancer pathogenesis, and may ultimately serve to develop potential cellular targets for therapeutic interventions.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/mortalidade , Macrófagos/patologia , Recidiva Local de Neoplasia/mortalidade , Antígeno Nuclear de Célula em Proliferação/metabolismo , Adulto , Anticorpos Monoclonais , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Calgranulina A/metabolismo , Calgranulina B/metabolismo , Feminino , Seguimentos , Humanos , Técnicas Imunoenzimáticas , Macrófagos/metabolismo , Pessoa de Meia-Idade , Gradação de Tumores , Invasividade Neoplásica , Recidiva Local de Neoplasia/metabolismo , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Prospectivos , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Análise Serial de Tecidos
14.
Trop Med Int Health ; 17(3): 397-401, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22035344

RESUMO

OBJECTIVE: In view of the substantial incidence of bloodborne diseases and risk to surgical healthcare workers in low- and middle-income countries (LMICs), we evaluated the availability of eye protection, aprons, sterile gloves, sterilizers and suction pumps. METHODS: Review of studies using the WHO Tool for the Situational Analysis of Access to Emergency and Essential Surgical Care. RESULTS: Eight papers documented data from 164 hospitals: Afghanistan (17), Gambia (18), Ghana (17), Liberia (16), Mongolia (44), Sierra Leone (12), Solomon Islands (9) and Sri Lanka (31). No country had a 100% supply of any item. Eye protection was available in only one hospital in Sri Lanka (4%) and most abundant in Liberia (56%). The availability of sterile gloves ranged from 24% in Afghanistan to 94% in Ghana. CONCLUSION: Substantial deficiencies of basic protective supplies exist in low- and middle-income countries.


Assuntos
Cirurgia Geral , Infecções por HIV/etiologia , Infecções/etiologia , Transmissão de Doença Infecciosa do Paciente para o Profissional/prevenção & controle , Exposição Ocupacional/efeitos adversos , Equipamentos de Proteção/provisão & distribuição , Gestão da Segurança/normas , África , Ásia , Patógenos Transmitidos pelo Sangue , Países em Desenvolvimento , Dispositivos de Proteção dos Olhos/provisão & distribuição , Luvas Cirúrgicas/provisão & distribuição , HIV , Infecções por HIV/sangue , Infecções por HIV/transmissão , Pessoal de Saúde , Humanos , Renda , Infecções/sangue , Infecções/transmissão , Melanesia , Exposição Ocupacional/análise , Fatores de Risco
16.
Aust N Z J Obstet Gynaecol ; 48(6): 580-2, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19133047

RESUMO

Emergency peripartum hysterectomy is a challenging but life-saving procedure. In this descriptive study carried out in a rural Nigerian hospital, we found an incidence of emergency peripartum hysterectomy of 5.4 per 1000 deliveries and a significant association with abdominal mode of delivery, unbooked status, previous caesarean section and placenta previa. The most common indications for peripartum hysterectomy were placenta accreta (47.6%) and uterine rupture (28.6%). There were five (23.8%) maternal deaths and other complications included sepsis (five), bladder injury (three) and prolonged hospital stay (11).


Assuntos
Tratamento de Emergência/estatística & dados numéricos , Histerectomia/estatística & dados numéricos , Mortalidade Materna , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/cirurgia , Adulto , Cesárea , Feminino , Humanos , Histerectomia/mortalidade , Tempo de Internação , Nigéria/epidemiologia , Complicações do Trabalho de Parto/mortalidade , Paridade , Placenta Acreta/epidemiologia , Placenta Acreta/mortalidade , Placenta Acreta/cirurgia , Gravidez , Fatores de Risco , Ruptura Uterina/epidemiologia , Ruptura Uterina/mortalidade , Ruptura Uterina/cirurgia
17.
BMC Surg ; 4: 5, 2004 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-15113429

RESUMO

BACKGROUND: Cutaneous myiasis of the breast due to infestation by the larva of Cordylobia anthropophaga is rare. To the best of our knowledge, only one case has been reported in the English literature. This rarity calls for an awareness of its possibility as a cause of furuncular breast lesions, especially in areas where the C. anthropophaga (Tumbu fly) is endemic or in patients returning from such areas. As it can be easily confused with other furuncular breast lesions (like tuberculosis, mycosis, actinomycosis, furunculosis, chronic breast abscess and fungating malignancies), this awareness is important to avoid misdiagnosis or delay in diagnosis. We present a case of furuncular breast myiasis due to the larvae of C. anthropophaga earlier misdiagnosed as mastitis in a patient living in tropical Africa (Nigeria) where the Tumbu fly is endemic. CASE PRESENTATION: We report a 70 year old woman who presented with a week history of itchy multiple discharging sinuses of the right breast. The sinuses contained wriggling larvae of C. anthropophaga. Fourteen larvae were extracted from the breast and the sinuses healed quite well after the extraction. CONCLUSIONS: Cutaneous myiasis of the breast is rare, hence, an awareness of its clinical features is necessary when a patient presents with furuncular skin lesions especially in endemic areas or people returning from such areas. Diagnosis is mainly clinical and lesions heal well after the extraction of the larvae. Preventive measures such as ironing after drying of dresses and a good personal hygiene are crucial in controlling C. anthropophaga infestation.


Assuntos
Doenças Mamárias/parasitologia , Dípteros , Miíase , Dermatopatias Parasitárias/parasitologia , Idoso , Animais , Feminino , Humanos , Larva , Miíase/diagnóstico , Miíase/parasitologia
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