Epilepsy Care in Developing Countries: Part II of II

Prevalence and associated factors of physical injuries among patients with epilepsy in Sub-Sharan Africa: A systematic review and meta-analysis

BACKGROUND

Globally, 50 million people suffer from epilepsy, with more than 80% of patients with epilepsy living in low- and middle-income countries. The World Health Organization (WHO) estimates that approximately 25 million people in Africa have epilepsy. In Sub-Saharan Africa, 50 % of patients with epilepsy experience seizure-related physical injuries, including burns, fractures, motor vehicle accidents, dental injury, soft-tissue injuries, and submersion accidents.

OBJECTIVE

This systematic review and meta-analysis was conducted to assess the prevalence and associated factors of physical injuries among patients with epilepsy in Sub-Sharan Africa.

METHODS

A systematic review and meta-analysis were conducted between January 2012 and December 2023. An experienced librarian performed a thorough search across several databases, including PubMed, Medline, the Cochrane Database of Systematic Reviews, Up To Date, EMBASE, and NICE (National Institute for Health and Care Excellence). The search also included grey literature and unpublished studies. Data were extracted on the prevalence of physical injuries and associated factors among patients with epilepsy in Sub-Saharan Africa. A pooled analysis of prevalence was conducted using a random-effects model, and a systematic review of risk factors for physical injuries was performed.

RESULTS

A total of seven studies (n = 1724) were included. The pooled prevalence physical of injuries among patients with epilepsy in Sub-Sharan Africa is found to be 63.68 % (95 % CI: 62.15, 65.22; I2 = 99.7 %; p < 0.0001). Subgroup analyses were conducted by grouping the studies by country. We also employed a leave-one-out sensitivity analysis to identify potential sources of heterogeneity. Publication bias was assessed by visual inspection of meta-funnel plot and egger, begs test, and revealed there was no publication bias.

CONCLUSION

This systematic review and meta-analysis can be used for policy maker, stakeholders and concerned body to set strategies to prevent seizure-related physical injuries among patients with epilepsy. The finding also allows clinicians to provide appropriate patient care.

Brain Imaging in New-Onset Seizure of Children Living With Human Immunodeficiency Virus in Zambia

BACKGROUND

There are an estimated 1.5 million children living with human immunodeficiency virus (CLHIV), most residing in sub-Saharan Africa. A common hospital presentation of CLHIV is new-onset seizure, for which imaging is helpful but not routinely performed due to scarce resources. We present imaging findings and their association with clinical risk factors and outcomes in a cohort of Zambian CLHIV presenting with new-onset seizure.

METHODS

In this prospective cohort study, participants were recruited at the University Teaching Hospital in Lusaka, Zambia. Various clinical and demographic characteristics were obtained. Computed tomography (CT), magnetic resonance imaging (MRI), or both were obtained during admission or shortly after discharge. If both studies were available, MRI data was used. Two neuroradiologists interpreted images using REDCap-based NeuroInterp, a tool that quantifies brain imaging findings. Age-dependent neuropsychologic assessments were administered.

RESULTS

Nineteen of 39 (49%) children had a brain MRI, 16 of 39 (41%) had CT, and four of 39 (10%) had both. Mean age was 6.8 years (S.D. = 4.8). Children with advanced HIV disease had higher odds of atrophy (odds ration [OR] 7.2, 95% confidence interval [CI] 1.1 to 48.3). Focal abnormalities were less likely in children receiving antiretroviral therapy (ART) (OR 0.22, 95% CI 0.05 to 1.0). Children with neurocognitive impairment were more likely to have atrophy (OR 8.4, 95% CI 1.3 to 55.4) and less likely to have focal abnormalities (OR 0.2, 95% CI 0.03 to 0.9).

CONCLUSIONS

Focal brain abnormalities on MRI were less likely in CLHIV on ART. Brain atrophy was the most common imaging abnormality, which was linked to severe neurocognitive impairment.

A quality of care assessment for women of childbearing potential with epilepsy in Bhutan: An observational study

BACKGROUND & OBJECTIVE

In lower-middle income countries such as Bhutan, the treatment gap for epilepsy is over 50% as compared to a treatment gap of less than 10% in high-income countries. We aim to analyze the quality of epilepsy care for women of childbearing potential in Bhutan using the Quality Indicators in Epilepsy Treatment (QUIET) tool, and to assess the usefulness of the tool's section for women with active epilepsy (WWE) in the Bhutanese setting.

METHODS

A prospective convenience cohort was enrolled in Thimphu, Paro, Punakha, and Wangdue, Kingdom of Bhutan, in 2022. Bhutanese women of childbearing potential at the time of enrollment (18-44 years old) were evaluated for the diagnosis of active epilepsy and underwent a structured survey-based interview with Bhutanese staff. Participants were surveyed on their epilepsy, pregnancy, and antiseizure medicine (ASM) histories. The clinical history and quality of epilepsy care of adult WWE were assessed using a section of the QUIET tool for women, an instrument originally developed by the U.S. Department of Veterans Affairs to analyze the quality of epilepsy care for American adults.

RESULTS

There were 82 Bhutanese WWE of childbearing potential, with mean age of 30.6 years at enrollment (range 18-44, standard deviation (SD) 6.6) and mean age of 20.3 years at epilepsy diagnosis (range 3-40, SD 8.0)). 39 % (n = 32) had a high school or above level of education, and 42 % (n = 34) were employed. 35 % (n = 29) reported a seizure within the prior week, and 88 % (n = 72) reported a seizure within the prior year. 49 % (n = 40) of participants experienced > 100 lifetime seizures. All but one participant took antiseizure medications (ASMs). At enrollment, participants presently took no (n = 1), one (n = 3), two (n = 37), three (n = 25), four (n = 11), or over five (n = 5) ASMs. The most common ASMs taken were levetiracetam (n = 40), phenytoin (n = 27), carbamazepine (n = 23), phenobarbital (n = 22), and sodium valproate (n = 20). 61 % of all WWE took folic acid. Of the 40 previously pregnant WWE, eight (20 %) took folic acid during any time of their pregnancy. 35 % (n = 29) used betel nut (doma, quid) and 53 % (n = 21) of pregnant WWE used betel nut during pregnancy.

CONCLUSIONS

Based on data about WWE participants' ASM, supplement, and substance use, our study identified the high use of first generation ASMs (including valproate), frequently in polytherapy, and betel nut use as treatment gaps in women of childbearing potential age with active epilepsy in Bhutan. To address these gaps for locations such as Bhutan, we propose modifications to the QUIET tool's "Chronic Epilepsy Care for Women" section.

Neurosurgery Research Output in Ethiopia: A Scoping Review

BACKGROUND

Neurosurgery-specific research plays a critical role in improving outcomes in patients with neurosurgical diseases. Despite the high burden of neurosurgical diseases in Ethiopia, little is known about types of neurosurgical research from Ethiopia. The goal of this scoping review is to assess the quantity and types of neurosurgical research published in peer-reviewed journals by authors from Ethiopia.

METHODS

PubMed, CINAHL, Embase, and Scopus were searched for Ethiopian neurosurgery literature published from 2001 to 2021. We selected articles based on the following criteria: articles must 1) discuss topics within neurosurgery and 2) focus on clinical practice and/or public health in Ethiopia. We collected data on research originality, study designs, and clinical versus public health research. The frequencies and percentages of categorical variables were reported. All analyses were conducted using Jamovi software.

RESULTS

Of the 362 results, 89 neurosurgical research articles were included in the final analysis. Of the 89 articles, case reports/series were most common (28.7%), followed by retrospective cohort (20.7%) and prospective cohort studies (18.4%). There were 8 literature reviews (9.2%) and 1 systematic review and meta-analysis (1.1%). No randomized controlled trial was found. Of all articles, 66 (75.9%) focused on clinical practice, and 21 (23.6%) were related to the public health aspect of neurosurgery. Forty-two articles (48.3%) included authors only from Ethiopia; 37 articles (42.5%) involved collaboration between Ethiopian and authors from another country, and 8 articles (9.2%) did not have Ethiopian authors.

CONCLUSIONS

Neurosurgery research from Ethiopia is lacking, despite its high disease burden. Case reports/series and cohort studies remain the mainstay, with few systematic reviews and no randomized controlled trial. International collaboration accounts for approximately half of Ethiopian neurosurgery research output. Further research support and infrastructure should be developed to encourage neurosurgery articles from Ethiopia.

Automatic Detection of Epilepsy Based on Entropy Feature Fusion and Convolutional Neural Network

Epilepsy is a neurological disorder, caused by various genetic and acquired factors. Electroencephalogram (EEG) is an important means of diagnosis for epilepsy. Aiming at the low efficiency of clinical artificial diagnosis of epilepsy signals, this paper proposes an automatic detection algorithm for epilepsy based on multifeature fusion and convolutional neural network. Firstly, in order to retain the spatial information between multiple adjacent channels, a two-dimensional Eigen matrix is constructed from one-dimensional eigenvectors according to the electrode distribution diagram. According to the feature matrix, sample entropy SE, permutation entropy PE, and fuzzy entropy FE were used for feature extraction. The combined entropy feature is taken as the input information of three-dimensional convolutional neural network, and the automatic detection of epilepsy is realized by convolutional neural network algorithm. Epilepsy detection experiments were performed in CHB-MIT and TUH datasets, respectively. Experimental results show that the performance of the algorithm based on spatial multifeature fusion and convolutional neural network achieves excellent results.

Telephone-based follow-up of children with epilepsy: Comparison of accuracy between a specialty nurse and a pediatric neurology fellow

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Childhood epilepsy forms a significant burden on the health-care delivery system.

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Telemedicine is a proposed effective alternative in overcoming this burden.

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Even simple mobile phones can be used by paramedical professionals.

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Tele-consultation in childhood epilepsy by pediatric neurology fellow has excellent sensitivity and specificity.

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A specialty nurse has also acceptable sensitivity and specificity in comparison with face-to-face consultation.

Background

Childhood epilepsy forms a significant burden on the health-care delivery system. Only a few pediatric neurologists available in most of the developing countries and caregivers face a lot of financial and logistic hardships, apart from a long waiting period for initial and follow up visits. Telemedicine is a proposed effective alternative in overcoming this burden.

Methods

Telephonic consultation by a pediatric neurology fellow was compared with that of a specialty nurse; both against face-to-face consultation (gold standard). Care-givers of children 4 months-18 years with epilepsy were telephonically consulted 24−48 hours before their scheduled hospital appointment by one specialty nurse and one pediatric neurology fellow at least 24 h apart in a random sequence. During the hospital visit, another pediatric neurology fellow blinded to the telephonic consultation, documented the same after Face-to-Face interview.

Results

In 141 children with epilepsy, 504 critical clinical events were identified. Telephonic consultation by pediatric neurology fellow had a sensitivity of 99 %, 97 %, and 100 % and specificity of 100 % each in detecting whether the child had any breakthrough seizure, any adverse event and whether the drug compliance was adequate or poor respectively, as compared to face-to-face consultation. Telephonic consultation by specialty nurse had a sensitivity of 91 %, 84 %, and 98 % and specificity of 97 %, 99 %, and 81 % in detecting whether the child had any breakthrough seizure, adverse event and whether the drug compliance was adequate or poor respectively. But the specialty nurses fared poorly in identifying atypical seizure semiologies like atonic and myoclonic seizures and documenting an exact number of breakthrough seizures, as well as few subjective adverse effects like behavioral abnormality and scholastic worsening, which was performed excellently by the pediatric neurology fellow.

Conclusions

Telephonic consultation in childhood epilepsy by pediatric neurology fellow has excellent sensitivity and specificity. A specialty nurse has also acceptable sensitivity and specificity in comparison with a face-to-face consultation.

The elusive ideal of inclusiveness: lessons from a worldwide survey of neurologists on the ethical issues raised by whole-genome sequencing

The anticipation of ethical issues that may arise with the clinical use of genomic technologies is crucial to envision their future implementation in a manner sensitive to local contexts. Yet, populations in low- and middle-income countries are underrepresented in studies that aim to explore stakeholders’ perspectives on the use of such technologies. Within the framework of a research project entitled “Personalized medicine in the treatment of epilepsy”, we sought to increase inclusiveness by widening the reach of our survey, inviting neurologists from around the world to share their views and practices regarding the use of whole-genome sequencing in clinical neurology and its associated ethics. We discuss herein the compelling scientific and ethical reasons that led us to attempt to recruit neurologists worldwide, despite the lack, in many low- or middle-income countries, of access to genomic technologies. Recruitment procedures and their results are presented and discussed, as well as the barriers we faced. We conclude that inclusive recruitment remains a challenging, albeit necessary and legitimate, endeavour.

'A thing full of stories': Traditional healers' explanations of epilepsy and perspectives on collaboration with biomedical health care in Cape Town

The experience of epilepsy is profoundly culturally mediated and the meanings attributed to the condition can have a great impact on its social course. This qualitative study used Kleinman's Explanatory Model framework to explore traditional healers' perspectives on epilepsy in an urban township in Cape Town, South Africa. The healers who participated in the study were Xhosa-speaking, had experience caring for patients with epilepsy, and had not received any training on epilepsy. Six individual in-depth interviews and one focus group with nine traditional healers were conducted using a semi-structured interview guide. Traditional healers identified several different names referring to epilepsy. They explained epilepsy as a thing inside the body which is recognized by the way it presents itself during an epileptic seizure. According to these healers, epilepsy is difficult to understand because it is not easily detectable. Their biomedical explanations of the cause of epilepsy included, among others, lack of immunizations, child asphyxia, heredity, traumatic birth injuries and dehydration. These healers believed that epilepsy could be caused by amafufunyana (evil spirits) and that biomedical doctors could not treat the supernatural causes of epilepsy. However, the healers believed that western medicines, as well as traditional medicines, could be effective in treating the epileptic seizures. Traditional healers were supportive of collaboration with western-trained practitioners and highlighted that the strategy must have formal agreements in view of protection of intellectual property, accountability and respect of their indigenous knowledge. The findings suggest a need for interventions that promote cultural literacy among mental health practitioners. Research is urgently needed to assess the impact of such collaborations between biomedical services and traditional healers on epilepsy treatment and care.

Epidemiology of epilepsy and its burden in Kolkata, India

BACKGROUND

Disability-adjusted life year (DALY) is a time-based measure of disease burden incorporating both disability and mortality. Our study aimed to determine the DALY lost from epilepsy in an Indian metropolis.

METHODS

A population-based prospective study on epilepsy was conducted over 5 years (2003-8) in Kolkata, India, on randomly selected 100,802 subjects (males 53,209, females 47,593) to assess prevalence as well as to capture incident cases of epilepsy and those incident cases that died. Standard case definitions were used. The data were used to estimate years of life lost (YLL) due to premature mortality, years of life lived with disability (YLD), and DALY, utilizing the prevalence-based Global Burden of Disease (GBD) 2010 approach. Age- and gender-specific figures were computed.

RESULTS

During 2003-2004, a total of 476 subjects with active epilepsy were detected and the age-adjusted prevalence rate was 4.71 per 1000. Over 5 years, there were 197 incident cases of epilepsy of whom 26 died. The age-adjusted annual incidence rate of epilepsy was 38.3 per 100,000. The all-cause standardized mortality rate (SMR) of epilepsy was 2.4. The burden of epilepsy in the year 2007-8 revealed the overall YLL was 755 per 100,000, and the overall YLD ranged from 14.45 to 31.0 per 100,000 persons depending on the clinical severity of the epilepsy. Both YLL and YLD values were higher in males than in females. The overall DALY lost due to epilepsy in 2007-8 was found to be 846.96 (males 1183.04, females 463.81) per 100,000.

CONCLUSIONS

This is the first study in India to determine the DALY of epilepsy using GBD 2010. The results reveal a substantial burden of epilepsy in our setting. Similar such studies are needed in other parts of India in both urban and rural settings.

USL255 extended-release topiramate for the treatment of epilepsy

USL255 is a once-daily, extended-release formulation of the well-established antiepileptic drug topiramate that was recently approved by the US FDA. As a capsule formulation, USL255 can be swallowed intact or opened and sprinkled onto soft food for patients with swallowing difficulties, including children (≥2 years old) and older patients. USL255 has been evaluated in seven key Phase I and III studies. Compared with immediate-release topiramate taken twice daily, once-daily USL255 provides equivalent topiramate exposure with a 26% reduction in plasma fluctuations. A multinational, Phase III, randomized, double-blind, placebo-controlled clinical trial in patients with refractory partial-onset seizures (PREVAIL) demonstrated that USL255 (200 mg/day) significantly improved seizure control and clinical outcomes versus placebo. USL255 is generally safe and well-tolerated, with a low incidence of neuropsychiatric and neurocognitive adverse events. These data suggest that USL255 may provide a useful treatment option for seizure control with convenient once-daily dosing.

Linking MRI postprocessing with magnetic source imaging in MRI-negative epilepsy

OBJECTIVE

MRI-negative (MRI-) pharmacoresistant focal epilepsy (PFE) patients are most challenging for epilepsy surgical management. This study utilizes a voxel-based MRI postprocessing technique, implemented using a morphometric analysis program (MAP), aiming to facilitate detection of subtle focal cortical dysplasia (FCD) in MRI- patients. Furthermore, the study examines the concordance between MAP-identified regions and localization from magnetic source imaging (MSI).

METHODS

Included in this retrospective study were 25 MRI- surgical patients. MAP was performed on T1-weighted MRI, with comparison to a normal database. The pertinence of MAP+ areas was confirmed by MSI, surgical outcome and pathology. Analyses of MAP and MSI were performed blindly from patients' clinical information and independently from each other.

RESULTS

The detection rate of subtle changes by MAP was 48% (12/25). Once MAP+ areas were resected, patients were more likely to be seizure-free (p=0.02). There were no false positives in the 25 age-matched normal controls. Seven patients had a concordant MSI correlate. Patients in whom a concordant area was identified by both MAP and MSI had a significantly higher chance of achieving a seizure-free outcome following complete resection of this area (p=0.008). In the 9 resected MAP+ areas, pathology revealed FCD type IA in 7 and type IIB in 2.

INTERPRETATION

MAP shows promise in identifying subtle FCD abnormalities and increasing the diagnostic yield of conventional MRI visual analysis in presurgical evaluation of PFE. Concordant MRI postprocessing and MSI analyses may lead to the noninvasive identification of a structurally and electrically abnormal subtle lesion that can be surgically targeted.

General practitioners' perceptions on management of epilepsy in primary care settings in Cape Town, South Africa: an exploratory pilot study

In a context where there are few neurologists, excellent management of patients with epilepsy at a primary care level is imperative. In South Africa, most uninsured patients suffering from epilepsy and other chronic illnesses are managed by general practitioners in state-provided primary care settings. We conducted a qualitative pilot study to explore perceptions of doctors working in primary care settings in Cape Town regarding the quality of epilepsy management. Our analysis revealed that these clinicians believe that epilepsy is poorly managed. Attributing factors were consistent with those found in literature. Although study findings cannot be generalized, we conclude that lack of attention to factors impacting on management of epilepsy is a serious concern and may lead to violations of health rights. Urgent prioritization, advocacy, collaboration, and empowerment of healthcare professionals, patients, lay carers, and the general public are needed to improve the management and quality of care of PWE.