Medicine- Scholarly Publications

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Browsing Medicine- Scholarly Publications by Author "Abubakar, S.A."

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    Open Access
    A Cross-Sectional Comprehensive Assessment of the Profile and Burden of Non-motor Symptoms in Relation to Motor Phenotype in the Nigeria Parkinson Disease Registry Cohort
    (Wiley, 2021) Ojo, O.O.; Wahab, K.W.; Bello, A.H.; Abubakar, S.A.; Ekeh, B.C.; Otubogun, F.M.; et al; Rizig, M.; Okubadejo, N.U.
    Background: Data on non-motor symptoms (NMS) in black Africans with Parkinson's disease (PD) are sparse. Objective: To describe the profile of NMS in the Nigeria PD Registry (NPDR) cohort and explore the relationship between NMS and PD motor phenotype. Methods: We conducted a cross-sectional study of the frequency and burden of NMS, based on the non-motor symptoms scale (NMSS) and the Chaudhuri method respectively in our cohort. Baseline demographics, disease characteristics (Hoehn and Yahr stage, MDS-UPDRS total score and Part III motor score), motor phenotype (based on Stebbin et al's algorithm), and levodopa equivalent daily dose (LEDD) were documented. Results: Data are presented for 825 PD whose mean age at study was 63.7 ± 10.1 years, female sex-221 [26.8%] while median PD duration was 36 months. PD phenotypes included tremor-dominant 466 (56.5%), postural instability and gait disorder (PIGD) 259 (31.4%), and indeterminate 100 (12.1%). 82.6% were on treatment (median LEDD of 500 mg/24 hours). 804 (97.5%) endorsed at least 1 NMS. The median NMSS score was 26.0 while subscores for urinary and sexual function domains were significantly higher in males (P < 0.05). PIGD-PD had more frequent NMS and higher frequency of severe/very severe NMSS burden (P = 0.000 for both). Nocturia and fatigue were the most prevalent NMS overall and across motor subtypes. PIGD phenotype and total UPDRS scores were the independent determinants of NMSS scores (P = 0.000). Conclusion: The profile and burden of NMS, and association with motor subtype in our black African cohort is largely similar to descriptions from other populations. Keywords: Nigeria; Parkinson's disease; black African; burden; motor phenotype; non‐motor symptoms.
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    Open Access
    A Nationwide Survey of Parkinson's Disease Medicines Availability and Affordability in Nigeria
    (Wiley, 2018-11-16) Okubadejo, N.U.; Ojo, O.O.; Wahab, K.W.; Abubakar, S.A.; Obiabo, O.Y.; Salawu, F.K.; Nwazor, E.O.; Agabi, O.P.; Oshinaike, O.O.
    Background and Objectives: Limited access to medicines can impact negatively on outcomes in people with Parkinson's disease (PD). The study objectives were to determine the availability and assess the affordability of antiparkinsonian medications in pharmacies across Nigeria. Methods: This was a cross-sectional nationwide study utilizing the World Health Organization/Health Action Initiative methodology. Strategically selected private- and public-sector pharmacies in the six geopolitical zones of Nigeria were surveyed for availability of medicines for management of early and advanced PD. The nine categories were: levodopa/peripheral decarboxylase inhibitors, dopamine receptor agonists, monoamine oxidase type B inhibitors, anticholinergics, catechol-o-methyl transferase inhibitors, atypical antipsychotics, antidepressants, antidementia drugs, and miscellaneous (e.g., drugs for orthostatism, urinary incontinence, and sleep disturbance). Unaffordability was defined as paying more than 1 days' wages (>N600 or > US$1.67) for a standard 30-day supply. Results: One hundred twenty-three pharmacies were surveyed (62 private [50.4%] and 61 public sector [49.6%]; range of 15-25 pharmacies in each geopolitical zone). Private exceeded public-sector availability across all nine categories of PD medicines (P < 0.05). The most available medicines were dopamine receptor agonists (68.3%; predominantly ergot-derived bromocriptine), anticholinergics (56.1%; mainly trihexyphenidyl), and l-dopa formulations (48%; mainly 250/25 l-dopa/carbidopa). Only two medications (trihexyphenidyl tablets and biperiden injection) were affordable. The average number of day's minimum wages for a 30-day supply of PD medicines was 41.3 days (range, 1-371). Conclusions: PD medicines access is limited in Nigeria. Strategies, including engagement of stakeholders to consider interventions to improve and prioritize PD medicines access, are urgently warranted.
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    Open Access
    The Nigeria Parkinson Disease Registry: Process, Profile, and Prospects of a Collaborative Project
    (Wiley, 2020) Ojo, O.O.; Abubakar, S.A.; Iwuozo, E.U.; Nwazor, E.O.; Ekenze, O.S.; Farombi, T.H.; et al; Rizig, M.; Okubadejo, N.U.
    Background: Clinical disease registries are useful for quality improvement in care, benchmarking standards, and facilitating research. Collaborative networks established thence can enhance national and international studies by generating more robust samples and credible data and promote knowledge sharing and capacity building. This report describes the methodology, baseline data, and prospects of the Nigeria Parkinson Disease Registry. Methods: This national registry was established in November 2016. Ethics approval was obtained for all sites. Basic anonymized data for consecutive cases fulfilling the United Kingdom Parkinson's Disease Brain Bank criteria (except the exclusion criterion of affected family members) are registered by participating neurologists via a secure registry website (www.parkinsonnigeria.com) using a minimal common data capture format. Results: The registry had captured 578 participants from 5 of 6 geopolitical zones in Nigeria by July 2019 (72.5% men). Mean age at onset was 60.3 ± 10.7 years; median disease duration (interquartile range) was 36 months (18-60.5 months). Young-onset disease (<50 years) represented 15.2%. A family history was documented in 4.5% and 7.8% with age at onset <50 and ≥ 50, respectively. The most frequent initial symptom was tremor (45.3%). At inclusion, 93.4% were on treatment (54.5% on levodopa monotherapy). Per-capita direct cost for the registry was $3.37. Conclusions: This is the first published national Parkinson's disease registry in sub-Saharan Africa. The registry will serve as a platform for development of multipronged evidence-based policies and initiatives to improve quality of care of Parkinson's disease and research engagement in Nigeria. © 2020 International Parkinson and Movement Disorder Society.
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    Open Access
    Relationship between admission serum C-reactive protein and short term outcome following acute ischaemic stroke at a tertiary health institution in Nigeria.
    (Wolters Kluwer (Medknow), 2013-07) Abubakar, S.A.; Okubadejo, N.U.; Ojo, O.O.; Oladipo, O.; Ojini, F.I.; Danesi, M.A.
    BACKGROUND: There is evidence of an association between mediators of inflammation, particularly C-reactive protein (CRP), and outcome of acute ischaemic stroke. This provides a potential opportunity for interventions aimed at improving outcome. There is sparse data exploring the role of inflammatory markers such as CRP and stroke outcome in Africans. The study objective was to determine the association between admission serum CRP levels and short-term outcome in the Nigerian patient presenting with acute ischaemic stroke. MATERIALS AND METHODS: Consecutive patients hospitalized for first-ever acute ischaemic stroke at the Lagos University Teaching Hospital, Lagos, Nigeria, were prospectively enrolled between October 2007 and June 2008. Stroke severity was assessed using the National Institutes of Health Stroke Scale (NIHSS). Serum CRP was determined on samples obtained within 7 days of stroke onset. All stroke patients were followed up till day 30 post-stroke. Outcome measures were 30 day Glasgow outcome scale score and functional impairment on the modified Rankin Scale (mRS). An age- and gender-matched healthy control group had serum CRP determined at inclusion. Elevated CRP was defined as any level above the cutoff (mean +2 x standard deviation of CRP level of controls). RESULTS: Eighty patients with acute ischaemic stroke (47 men and 33 women) and 40 controls (27 male and 13 female) (P = 0.47) were studied. Mean age in cases was 59.1 ± 15.0 years. Mean CRP was significantly higher in stroke cases than controls (17.7 ± 14.4 mg/L versus 1.1 ± 1.7 mg/L respectively) (P < 0.00001). The frequency of elevated CRP (>4.5 mg/L) was 76.3% in stroke (N = 61) and 5% (N = 2) in controls (P < 0.0001). The case fatality rate in stroke with elevated CRP (32.8%) was significantly higher than stroke with normal admission CRP (0%; P = 0.015). The association of higher admission CRP with fatality () was statistically significant (P < 0.0001). Amongst survivors, mean CRP levels were markedly higher in the patients with unfavorable motor outcome (moderate/severe disability; n = 22; 21.5 ± 11.1) compared to those with favorable outcome (mild disability; n = 38; 6.5 ± 6.2) (P < 0.00001). In multivariate regression analysis, only high NIHSS score (P = 0.004) and admission CRP (P = 0.008) were independently associated with case fatality. CONCLUSIONS: Elevated admission CRP and high NIHSS score are independent predictors of short-term case fatality and adverse functional outcome following acute ischaemic stroke in Nigerians.