Publications by authors named "Benedict Calys-Tagoe"

Background: Inflammation might predispose to worse outcomes after an ischemic stroke. This has not been characterized among indigenous Africans.

Purpose: We investigated the association between inflammatory biomarkers, stroke severity, and outcomes in Africans.

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Introduction:  The Recruitment and Retention of Alzheimer's Disease Diversity Genetic Cohorts in the Alzheimer's Disease Sequencing Project (READD-ADSP) was established to bridge the gap in Alzheimer's disease and related dementias (ADRD) research in Africa. We examined the role of Community Advisory Boards (CABs) in improving participant recruitment and retention in ADRD research in Africa, by exploring how culturally sensitive engagement, community trust-building, and stakeholder involvement influence research participation.

Methods:  A multi-site, multi-phased qualitative study approach that involved establishment of CABs, initial planning meetings and community engagement cum recruitment activities.

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Background: Several factors have been independently associated with stroke occurrence globally. However, the association between sedative use and stroke risk is yet to be established in West Africa.

Objective: To assess the association between sedatives and stroke among West Africans.

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Background And Aim: Issues concerning appropriate Community Engagement (CE) and communication of research outcomes with stakeholders have received the attention of scholars in different sub-fields of clinical research. However, given its novel nature, especially in Sub-Saharan Africa, CE addressing the ethical, legal, and social implications (ELSI) of neurobiobanking and stroke genomic research has not received much scholarly attention. Therefore, this study was designed as a pioneering effort to report the procedures for developing and evaluating intervention tools for the CE component of the African Neurobiobank for Precision Stroke Medicine ELSI Project.

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Background: While hypertension is a primary risk factor for higher stroke risk, adequate vegetable consumption has been linked with a lower odds of stroke. However, it is unclear whether low/inadequate vegetable consumption could aggravate the odds of stroke among people with hypertension. This study assessed the interaction of low vegetable consumption and hypertension with stroke among West Africans.

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Background: We investigated the link between LDL-C and markers of ICH severity among Indigenous West Africans in the Stroke Investigative Research and Education Network study.

Methods: ICH severity was evaluated using the Glasgow Coma Scale (GCS), Stroke Levity Scale (SLS), and the National Institutes of Health Stroke Scale (NIHSS). The serum LDL-c of the study population was dichotomized into <133 mg/dl and ≥ 133 mg/dl using the optimum threshold by the Youden Index after assessing the linear relationship between the serum LDL-c measured at admission and ICH severity markers.

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Background: There is a growing interest in stroke genomics and neurobiobanking research in Africa. These raise several ethical issues, such as consent, re-use, data sharing, storage, and incidental result of biological samples. Despite the availability of ethical guidelines developed for research in Africa, there is paucity of information on how the research participants' perspectives could guide the research community on ethical issues in stroke genomics and neurobiobanking research.

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Breast cancer is the leading cause of cancer in females worldwide. Western Africa has one of the highest mortality rates globally partly due to late presentation, often attributed to deficits in patient knowledge about the disease. A cross-sectional study was conducted at the Korle Bu Teaching Hospital among breast cancer patients.

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  • The study aimed to investigate how alcohol consumption is linked to stroke occurrences in Nigeria and Ghana by comparing individuals who had strokes to those who didn't.!
  • It involved over 7,368 participants, classifying them into groups based on their alcohol consumption habits, and utilized various statistical models to analyze the data.!
  • Results indicated that current drinkers had a higher risk of stroke, particularly among moderate, binge, and heavy drinkers, while former drinkers showed no significant stroke risk. !
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Background: Breast cancer incidence rates are rising in Africa and mortality is highest in West Africa. Reasons for poor survival are multifactorial but delays in seeking appropriate health care result in late presentation which contributes significantly to poor outcomes. Total delays of more than 3 months have been associated with advanced stage at presentation and poorer survival.

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  • - The study aimed to compare the clinical characteristics of COVID-19 in vaccinated vs. unvaccinated patients at a treatment facility in Ghana from March to December 2021.
  • - It analyzed 775 patient records, revealing that vaccinated individuals were more likely to receive outpatient care, had fewer hospital days, and experienced a significantly lower death rate.
  • - Results indicated that less than half of the patients were vaccinated, highlighting a need for improved vaccination efforts to reduce severe COVID-19 outcomes.
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Objectives: To uncover variables linked to breast cancer patient satisfaction in order to improve policy choices and actions for breast cancer care in Ghana.

Design: We employed a cross-sectional design using a quantitative approach.

Setting: The Radiotherapy, Oncology and Surgery Departments of the Korle Bu Teaching Hospital, Accra.

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  • African ancestry populations have the highest stroke burden globally, yet the genetic factors contributing to stroke in these groups are not well understood, prompting the SIREN study in West Africa to investigate this.
  • The study involved recruiting stroke patients and stroke-free controls to conduct a genome-wide association study (GWAS), leading to DNA analysis that identified significant SNPs near specific genes associated with stroke risk.
  • Key findings highlighted protective genetic variants near AADACL2 and MIR5186 on chromosome 3, as well as other notable associations on chromosomes 5, 6, 12, 16, and 18, which could provide insights for future stroke risk assessment in these populations.
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Background: The dietary factors associated with the high burden of hypertension among indigenous Africans remain poorly understood. We assessed the relationship between dietary patterns and hypertension among indigenous Africans.

Method: In this study, 1550 participants with hypertension matched (for age: ± 5 years, sex and ethnicity) with 1550 participants without hypertension were identified from the stroke-free population in the Stroke Investigative Research and Educational Network study in Ghana and Nigeria.

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Background: Spontaneous intracerebral hemorrhage (ICH) is associated with a high case fatality rate in resource-limited settings. The independent predictors of poor outcome after ICH in sub-Saharan Africa remains to be characterized in large epidemiological studies. We aimed to determine factors associated with 30-day fatality among West African patients with ICH.

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  • Non-cigarette tobacco (NCT) use is linked to an increased risk of stroke among indigenous Africans, suggesting a need for better understanding and public health interventions.
  • The study involved 7,617 respondents, showing that those who used smokeless NCT had a significant association with stroke, while smoked NCT did not show a strong link.
  • Increased awareness and targeted policies are essential to address the rising burden of stroke related to NCT usage in the population.
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Background: There is a growing interest in stroke genomics and neurobiobanking research in Africa. These raise several ethical issues, such as consent, re-use, data sharing, storage, and incidental result of biological samples. Despite the availability of ethical guidelines developed for research in Africa, there is paucity of information on how the research participants' perspectives could guide the research community on ethical issues in stroke genomics and neurobiobanking research.

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Background: This study aimed to develop a risk-scoring model for hypertension among Africans.

Methods: In this study, 4413 stroke-free controls were used to develop the risk-scoring model for hypertension. Logistic regression models were applied to 13 risk factors.

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Background: The family represents the most essential and supportive environment for children with cerebral palsy (CP). To improve children's outcomes, it is crucial to consider the needs of families in order to offer family-centered care, which tailors services to these needs.

Objective: We conducted a needs assessment to identify the family needs of patients with CP attending two hospitals in Accra.

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  • Background research indicates that severe stroke outcomes in sub-Saharan Africa may be linked to initial stroke severity, but there is limited knowledge on what influences stroke severity specifically in indigenous Africans.
  • A study involving 3,660 West African stroke cases found that diet (high meat and low vegetable consumption) and lesion volume significantly correlated with severe stroke conditions, with severe cases comprising over half of all evaluated strokes.
  • The findings suggest that addressing dietary habits and understanding lesion characteristics could help mitigate the high rates of severe stroke in this population.
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Background: Every minute, six indigenous Africans develop new strokes. Patient-level and system-level contributors to early stroke fatality in this region are yet to be delineated. We aimed to identify and quantify the contributions of patient-level and system-level determinants of inpatient stroke fatality across 16 hospitals in Ghana and Nigeria.

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  • The study examined how stroke-free individuals and healthcare providers in Nigeria and Ghana perceive and prefer the disclosure of genetic testing results related to stroke.
  • Findings indicated that healthcare professionals generally had a better understanding of genetic testing compared to family members, and suggested that relatives and religious figures are preferred for delivering sensitive results to patients.
  • Challenges for effective disclosure included inadequate information, fear of stigma and familial distress, and a lack of awareness about national guidelines, highlighting the need for culturally tailored educational initiatives.
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Background: Stroke is a leading cause of disability and mortality worldwide, but little is known about the contribution of secondhand smoke exposure (SHSE) to stroke epidemiology among indigenous Africans.

Objective: To evaluate the association of SHSE with stroke among indigenous Africans.

Methods: We analyzed the relationship of SHSE with stroke among 2990 case-control pairs of adults who had never smoked (identified in the SIREN study) using conditional logistic regression at a two-sided P < 0.

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Background: We evaluated the characteristics of carotid and vertebral atherosclerosis in indigenous West Africans with stroke.

Methodology: Of the 3778stroke patients recruited between 01/2014 and 08/2017, 1070 (28.3%) received carotid and vertebral artery evaluation with B-mode Ultrasound.

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