Publications by authors named "John Akassi"

Article Synopsis
  • Indigenous Africans have a higher genetic predisposition to elevated lipoprotein-a (Lp(a)), which increases the risk of ischemic stroke, making it essential to address this issue among stroke survivors.
  • In a study of 116 Ghanaian stroke survivors, 30.2% were found to have elevated Lp(a), with female sex, urban living, diabetes, and high cholesterol contributing to this elevation.
  • The study highlights a significant increase in Lp(a) levels over time, revealing an important gap in necessary therapy for secondary prevention in this population.
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Article Synopsis
  • Researchers aimed to understand long-term mortality rates and predictors after strokes in Ghana, focusing on different types and subtypes of strokes, due to limited data in sub-Saharan Africa.
  • The study included 564 stroke patients from 2013 to 2018, with a significant follow-up revealing that mortality rates increased substantially over time, eventually reaching 73.7% at 8 years.
  • Key factors influencing mortality were older age, low formal education, and higher initial functional scores, with specific factors varying between ischemic strokes and intracerebral hemorrhages.
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Background And Purpose: Expert consensus guidelines recommend optimizing global risk factor control in diabetic stroke survivors to improve outcomes. Since relatively little is known about the adequacy of risk factor control among diabetic stroke survivors in sub-Saharan Africa, we sought to assess control rates of key traditional risk factors among Ghanaian stroke survivors with diabetes. A secondary objective was to assess the burden of undiagnosed dysglycemic states among stroke survivors without a prior diagnosis of diabetes mellitus (DM) METHODS: Cross-sectional study of outpatient stroke survivors consecutively enrolled in a stroke registry at a tertiary medical center in Ghana between January 2018 and March 2020.

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Article Synopsis
  • Post-stroke epilepsy (PSE) affects about 11.4% of stroke survivors in Ghana, contributing to lower quality of life and higher healthcare costs.
  • The study found that factors linked to PSE include being male, having cortical ischemic strokes, high blood pressure, and the type and number of antihypertensive medications.
  • Researchers suggest further studies are needed to better understand the relationship between these factors and the occurrence of PSE among stroke survivors.
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Background: Refractory hypertension (RfH) is a rare, severe phenotype of resistant hypertension, linked to higher risk of adverse cardiovascular outcomes. Little is known about the association of RfH with stroke type and subtype.

Objective: To determine the prevalence and predictors of RfH among stroke survivors in Ghana.

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Background: HIV infection is an emerging vascular risk factor associated with stroke occurrence. The weight of evidence from sub-Saharan Africa in support of this has accrued from countries with high HIV prevalence. Our objective was to assess the contribution of HIV sero-positivity to the occurrence and outcomes of stroke in a West African country with low HIV prevalence.

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Background: Compared with high-income countries, sub-Saharan African (SSA) countries experience a comparatively higher early mortality from stroke. However, data on long-term mortality from stroke in SSA are lacking.

Objective: Our aim is to assess long-term outcomes of stroke in an SSA setting.

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Background And Purpose: There is a paucity of data on persistence of secondary prevention medications among stroke survivors in resource-limited settings where stroke is on a rapid upward trajectory and its management severely challenged. To avert new cardiovascular events after stroke, preventive medications should be promptly instituted and used continuously. We report 1-year rates and determinants of persistent utilization of secondary prevention therapies after stroke in Ghana.

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Background And Objective: There are limited data on vascular cognitive impairment (VCI) from low- and middle-income countries where the stroke burden is burgeoning. The aim of this study was to characterize the burden, determinants, and effects of VCI on health-related quality of life in sub-Saharan Africa (SSA).

Methods: From January 2015 to February 2016, we collected information on 147 consecutive stroke survivors (>45 years) seen at a tertiary hospital in Ghana and 49 demographically matched stroke-free controls.

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Background And Objective: Elevated systolic blood pressure (SBP) is potently associated with risk of recurrent strokes. In resource-limited settings, there is a dearth of data on the rates and determinants of uncontrolled SBP among stroke survivors at high risk of recurrent events. The objective of this study is to assess the rates and determinants of uncontrolled SBP over the first year post stroke.

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Background: Although the burden of neurological disorders is highest among populations in developing countries there is a dearth of data on the clinical spectrum of these disorders.

Objective: To profile the frequency of neurologic disorders and basic demographic data in an adult neurology out-patient service commissioned in 2011 in Kumasi, Ghana.

Methods: The study was conducted at the neurology clinic of the Komfo Anokye Teaching Hospital in Kumasi, Ghana.

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Background: Although neurological disorders are projected to escalate globally in the coming decades, there is a paucity of enumerated data on the burden, spectrum and determinants of outcomes of adult neurological admissions in resource-limited settings, especially within sub-Saharan Africa.

Objective: To evaluate the diversity, demography, and determinants of mortality among adult patients presenting with neurological disorders over a 6-year period in a tertiary medical referral institution in the Central belt of Ghana.

Methods: A retrospective analysis of data on neurological admissions and in-patient outcomes between 2008 and 2013 was undertaken.

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Background: Accumulating data based on model-derived estimates suggest rising rates of stroke in sub-Saharan Africa over the next several decades. Stroke is a leading cause of death, disability, and dementia worldwide. Directly enumerated hospital-based data on the longitudinal trajectory of stroke admissions and deaths in sub-Saharan Africa could help hospital administrators, public health officials, and government policy-makers with planning and utilization of scarce resources.

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During the past decade, a number of large drug trials suggested that the initiation of levodopa therapy should be delayed to reduce the risk of motor complications in patients with Parkinson's disease. However, the relative contribution of the cumulative exposure to levodopa and of disease progression to the pathophysiology of motor fluctuations and dyskinesias is still poorly understood. In this 4-year multicentre study, we investigated a large cohort of patients with Parkinson's disease in a sub-Saharan African country (Ghana), where access to medication is limited and the initiation of levodopa therapy often occurs many years after onset.

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