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89 result(s) for "Galukande, Moses"
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Breast cancer survival experiences at a tertiary hospital in sub-Saharan Africa: a cohort study
Background Cancer of the breast is a major health burden and the most common cancer among women worldwide. Though its incidence is fourfold greater in high-income countries, in sharp contrast, mortality rates are greatest among the low-income countries. Early detection linked to appropriate treatment is the most effective strategy to improve survival. The purpose of this study therefore was to establish the survival experiences of women with breast cancer at a Ugandan hospital. Methods This study is an observational analytical study. It involved 262 women during the periods 2004 to 2007 and 2010 to 2012. Kaplan Meier method and Cox regression were used to calculate breast cancer mortality and cumulative survival experiences. Results Sixty-three out of 262 (23 %) deaths were observed; mean age was 45 years, and 91 observations ended on or before follow-up. Luminal B median survival was months. The 5-year cumulative survival was 51.8 %. There were no stage I and II deaths. There were no differences in survival by phenotype adjusted for age, but there were differences for stage IV ( p  = 0.05). Conclusions The cumulative 5-year survival was 51.8 %. The burden of advanced disease and associated mortality were high, and a significant number of patients were lost to follow-up after their first contact.
Treatment guideline concordance, initiation, and abandonment in patients with non-metastatic breast cancer from the African Breast Cancer–Disparities in Outcomes (ABC-DO) cohort in sub-Saharan Africa: a prospective cohort study
Comprehensive breast cancer management is essential to achieve high breast cancer survival; however, detailed reports of the treatment regimens received by patients are scarce in sub-Saharan Africa where survival is low. We aimed to examine treatment initiation, guideline concordance, and abandonment in patients with non-metastatic breast cancer in sub-Saharan Africa from the African Breast Cancer–Disparities in Outcomes (ABC-DO) prospective cohort. The ABC-DO prospective cohort study recruited women (aged ≥18 years) with newly diagnosed invasive breast cancer in eight hospitals across five sub-Saharan African countries (Namibia, Nigeria, Uganda, South Africa, and Zambia). We analysed treatments received by women who were classified as non-metastatic (M0) at the initial presentation. Data on surgery, radiotherapy, and systemic therapies were obtained from medical records and a self-reported follow-up questionnaire at 6 months after the diagnosis, follow-up calls every 3 months, and a baseline questionnaire. Initiation, completion, and abandonment of treatment modalities and combined therapy regimens were examined overall, by country-specific groups, and by clinical factors relevant for guideline-based treatment. Of 2313 women recruited into the ABC-DO study between Sept 10, 2014, and Dec 31, 2017, 2226 had histologically or clinically confirmed breast cancer. Of these 2226 women, 510 were excluded from the present analysis because 378 had metastatic disease, 37 were prevalent cases (defined as those previously diagnosed with breast cancer >2 years before baseline), 82 had unknown TNM stage, and 13 were White or Asian women in South Africa (number was too small for analysis). After a median follow-up of 5·2 years (IQR 4·6–5·9), 1163 (68%) of 1716 women underwent breast cancer surgery. Surgery and systemic therapy (ie, multimodality treatment) with radiotherapy was initiated in 370 (36%) of 1028 women with localised tumours versus 156 (23%) of 688 women with locally advanced tumours, whereas multimodality treatment without radiotherapy was initiated in 386 (38%) versus 167 (24%) women, respectively. Of 1530 patients requiring chemotherapy (which excludes 105 who died within 6 months after baseline), 1013 (66%) initiated treatment of neoadjuvant chemotherapy or surgery within 3 months after baseline, which was adequately completed by 359 (35%) of 1013 women, marginally completed by 284 (28%), abandoned by 200 (20%), and unknown in 151 (15%). 19 (2%) women died within 6 months after chemotherapy initiation. Of 1375 women in whom endocrine therapy was indicated, this treatment was initiated in 920, and lasted at least 3 years in 367 (40%) women. Treatment disparities between country-specific groups were substantial for all therapy regimens. A high proportion of patients with non-metastatic breast cancer did not initiate, did not fully complete, or abandoned treatment with surgery, systemic therapy, radiotherapy, or an appropriate combination of these, highlighting the need for improved treatment access and completion in sub-Saharan Africa to potentially prevent premature breast cancer deaths. National Institutes of Health (National Cancer Institute), Susan G Komen, and the International Agency for Research on Cancer.
Inequities in breast cancer treatment in sub-Saharan Africa: findings from a prospective multi-country observational study
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.
A mouse model for triple-negative breast cancer tumor-initiating cells (TNBC-TICs) exhibits similar aggressive phenotype to the human disease
Background Triple-negative breast cancer (TNBC) exhibit characteristics quite distinct from other kinds of breast cancer, presenting as an aggressive disease--recurring and metastasizing more often than other kinds of breast cancer, without tumor-specific treatment options and accounts for 15% of all types of breast cancer with higher percentages in premenopausal African-American and Hispanic women. The reason for this aggressive phenotype is currently the focus of intensive research. However, progress is hampered by the lack of suitable TNBC cell model systems. Methods To understand the mechanistic basis for the aggressiveness of TNBC, we produced a stable TNBC cell line by sorting for 4T1 cells that do not express the estrogen receptor (ER), progesterone receptor (PgR) or the gene for human epidermal growth factor receptor 2 (HER2). As a control, we produced a stable triple-positive breast cancer (TPBC) cell line by transfecting 4T1 cells with rat HER2, ER and PgR genes and sorted for cells with high expression of ER and PgR by flow cytometry and high expression of the HER2 gene by Western blot analysis. Results We isolated tumor-initiating cells (TICs) by sorting for CD24 + /CD44 high /ALDH1 + cells from TNBC (TNBC-TICs) and TPBC (TPBC-TICs) stable cell lines. Limiting dilution transplantation experiments revealed that CD24 + /CD44 high /ALDH1 + cells derived from TNBC (TNBC-TICs) and TPBC (TPBC-TICs) were significantly more effective at repopulating the mammary glands of naïve female BALB/c mice than CD24 - /CD44 - /ALDH1 - cells. Implantation of the TNBC-TICs resulted in significantly larger tumors, which metastasized to the lungs to a significantly greater extent than TNBC, TPBC-TICs, TPBC or parental 4T1 cells. We further demonstrated that the increased aggressiveness of TNBC-TICs correlates with the presence of high levels of mouse twenty-five kDa heat shock protein (Hsp25/mouse HspB1) and seventy-two kDa heat shock protein (Hsp72/HspA1A). Conclusions Taken together, we have developed a TNBC-TICs model system based on the 4T1 cells which is a very useful metastasis model with the advantage of being able to be transplanted into immune competent recipients. Our data demonstrates that the TNBC-TICs model system could be a useful tool for studies on the pathogenesis and therapeutic treatment for TNBC.
Informed consent practices among emergency staff for patients undergoing emergency surgery in the emergency surgical units of two tertiary teaching hospitals in Uganda: a qualitative study
Background Staff in low resourced emergency units of a low-income country face the challenge of obtaining informed consent for incapacitated patients or their next of kin in a time-constrained situation often in an overcrowded environment. Therefore, we aimed to establish the informed consent practices for emergency surgical care among healthcare professional at two emergency surgical units at two tertiary teaching hospitals in Uganda. Methods In October 2022 – February 2023we conducted key informant interviews in Uganda and purposively selected 16 staff in surgical emergency units at two tertiary teaching hospitals and directly observed the informed consent practices. Data was managed and analyzed inductively using NVivo version 12. Results Six themes emerged from key informant interviews including knowledge and perspectives on informed consent; processes, procedures, and practices regarding informed consent; communication strategies for informed consent; ethical considerations; benefits of informed consent during surgery; and challenges to emergency informed consent. Staff had adequate knowledge about informed consent but faced several challenges during the consent process due to lack of guiding institutional policies. Overall, the informed consent process was inadequate at both institutions with greeting of patients, disclosure of risks and assessment of understanding poorly done. Consent was conducted in a noisy environment at both institutions and there was no privacy in the public hospital. Conclusion Although knowledge about consent practices by emergency staff at both institutions was good, in practice there was inadequate disclosure of risks, inadequate knowledge about the surgical procedure, risks, and benefits. Emergency staff identified the need for procedure specific consent documents which capture the information that is given to the patient and guiding policies on consent for incapacitated patients who have no surrogates.
Experiences of patients and next of kin on informed consent process for emergency surgery in two Urban university teaching hospitals in Uganda: a comparative cross sectional study
Informed consent for emergency surgery is a process in which a patient or their next of kin must make quick decisions required for surgery in a life-threatening situation or surgery that may have life-altering outcomes. The objective of the study was to describe patients and their next of kin experiences and factors influencing the informed consent process in two urban university teaching hospitals in Uganda. Methods: A cross-sectional survey involving patients who underwent emergency surgery and their next of kin was conducted in two tertiary care hospitals; one public and one private-not-for profit institution. A questionnaire was administered to collect sociodemographic information, type of Surgery that was done, how informed consent was obtained and experiences and expectations from the informed consent process. Univariate and multivariate analyses of the variables was done. Results: We collected data from 210 patients from a public hospital and 170 from a private-not-for profit hospital. Overall, most patients did not have the risks of the surgery communicated to them (79.7%), were not given alternative options (87.6%) and had no opportunity to ask questions (57.4%). Patients at the private institution had 3.35 times the odds of expecting the consent form to be explained to them than those at the public institution. Patients at the public hospital had 0.12 times the odds of preferring to have consent administered by a nurse than patients at the private institution OR 0.12 (0.05–0.29, p < 0.001). Patients in the public institution had 0.18 times the odds of preferring to have consent administered by a doctor than patients in the private institution OR 0.18 (0.08–0.45, p < 0.001). Conclusion: Patients in both public and private institutions are not informed about the risks of surgery, alternative options and are not given the opportunity to ask questions. Interpretation of the findings of this study on patient preferences on who administered consent though statistically significant were inconclusive due to the responses not being mutually exclusive.
Metagenomic sequencing of the skin microbiota of the scalp predicting the risk of surgical site infections following surgery of traumatic brain injury in sub-Saharan Africa
Surgical site infections (SSI) are a significant concern following traumatic brain injury (TBI) surgery and often stem from the skin's microbiota near the surgical site, allowing bacteria to penetrate deeper layers and potentially causing severe infections in the cranial cavity. This study investigated the relationship between scalp skin microbiota composition and the risk of SSI after TBI surgery in sub-Saharan Africa (SSA). This was a prospective cohort study, enrolling patients scheduled for TBI surgery. Sterile skin swabs were taken from the surrounding normal skin of the head and stored for analysis at -80°Celcius. Patients were monitored postoperatively for up to three months to detect any occurrences of SSI. 16S rRNA sequencing was used to analyze the skin microbiota composition, identifying different taxonomic microorganisms at the genus level. The analysis compared two groups: those who developed SSI and those who did not. A total of 57 patients were included, mostly male (89.5%) with a mean age of 26.5 years, predominantly from urban areas in Uganda and victims of assault. Graphical visualization and metagenomic metrics analysis revealed differences in composition, richness, and evenness of skin microbiota within samples (α) or within the community (β), and showed specific taxa (phylum and genera) associated with either the group of SSI or the No SSI. Metagenomic sequencing analysis uncovered several baseline findings and trends regarding the skin microbiome's relationship with SSI risk. There is an association between scalp microbiota composition (abundancy and diversity) and SSI occurrence following TBI surgery in SSA. We hypothesize under reserve that the scalp microbiota dysbiosis could potentially be an independent predictor of the occurrence of SSI; we advocate for further studies with larger cohorts.
A qualitative study on informed consent decision-making at two tertiary hospitals in Uganda: Experiences of patients undergoing emergency surgery and their next of kin
Background: In emergency situations, patients and their next of kin must make complex medical and ethical decisions in a quick and timely way. Objectives: To describe the decision-making process during informed consent for emergency surgery among patients and the next of kin of patients who have undergone emergency surgery. Methods: Consecutive sampling of 39 participants and in-depth semi-structured interviews were conducted at two tertiary teaching hospitals in Uganda. There were 22 patients and 17 next of kin of patients who had undergone emergency surgery within 24–72 h. Responses about decision-making were coded into themes using the social constructivist theory and phenomenological approach Results: There were four emergent themes; decision-makers, people consulted, documentation of the consent and factors influencing decision-making. Most patients and next of kin made decisions on their own and documented the consent for themselves. Other family members and doctors were consulted during the decision-making process. Decision-making was influenced by reassurance of good outcomes of surgery and disclosure by the doctors. Conclusion: Decisions were made collaboratively with the patient at the center but with input of health personnel, the next of kin and other family members. A communitarian approach combined with shared decision-making between the doctor and the patient and next of kin with adequate discussion and disclosure of information in simple language would improve decision-making for patients and their next of kin.
Rural and urban differences in treatment status among children with surgical conditions in Uganda
In low and middle-income countries, approximately 85% of children have a surgically treatable condition before the age of 15. Within these countries, the burden of pediatric surgical conditions falls heaviest on those in rural areas. The objective of the current study was to evaluate the relationship between rurality, surgical condition and treatment status among a cohort of Ugandan children. We identified 2176 children from 2315 households throughout Uganda using the Surgeons OverSeas Assessment of Surgical Need (SOSAS) survey. Children were randomly selected and were included in the study if they were 18 years of age or younger and had a surgical condition. Location of residence, surgical condition, and treatment status was compared among children. Of the 305 children identified with surgical conditions, 81.9% lived in rural areas. The most prevalent causes of surgical conditions reported among rural and urban children were masses (24.0% and 25.5%, respectively), followed by wounds due to injury (19.6% and 16.4%, respectively). Among children with untreated surgical conditions, 79.1% reside in rural areas while 20.9% reside in urban areas. Among children with untreated surgical conditions, the leading reason for not seeking surgical care among children living in both rural and urban areas was a lack of money (40.6% and 31.4%, respectively), and the leading reason for not receiving care in both rural and urban settings was a lack of money (48.0% and 42.8%, respectively). Our data suggest that over half of the children with a surgical condition surveyed are not receiving surgical care and a large majority of children with surgical needs were living in rural areas. Future interventions aimed at increasing surgical access in rural areas in low-income countries are needed.
Informed consent process for emergency surgery: A scoping review of stakeholders’ perspectives, challenges, ethical concepts, and policies
Background: A scoping review of literature about the informed consent process for emergency surgery from the perspectives of the patients, next of kin, emergency staff, and available guiding policies. Objectives: To provide an overview of the informed consent process for emergency surgery; the challenges that arise from the perspectives of the patients, emergency staff, and next of kin; policies that guide informed consent for emergency surgery; and to identify any knowledge gaps that could guide further inquiry in this area. Methods: We searched Google Scholar, PubMed/MEDLINE databases as well as Sheridan Libraries and Welch Medical Library from 1990 to 2021. We included journal articles published in English and excluded non-peer-reviewed journal articles, unpublished manuscripts, and conference abstracts. The themes explored were emergency surgery consent, ethical and theoretical concepts, stakeholders’ perceptions, challenges, and policies on emergency surgery. Articles were reviewed by three independent reviewers for relevance. Results: Of the 65 articles retrieved, 18 articles were included. Of the 18 articles reviewed, 5 addressed emergency informed consent, 9 stakeholders’ perspectives, 7 the challenges of emergency informed consent, 3 ethical and theoretical concepts of emergency informed consent, and 3 articles addressed policies of emergency surgery informed consent. Conclusion: There is poor satisfaction in the informed consent process in emergency surgery. Impaired capacity to consent and limited time are a challenge. Policies recommend that informed consent should not delay life-saving emergency care and patient’s best interests must be upheld.