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Hikima MS, Lawal Y, Isyaku K, Kazaure IS, Suwaid MA, Ismail A. Spectrum of carotid arterial Doppler abnormalities among stroke patients at a tertiary care centre in North West Nigeria. JOURNAL OF THE WEST AFRICAN COLLEGE OF SURGEONS 2024; 14:262-269. [PMID: 38988420 PMCID: PMC11232792 DOI: 10.4103/jwas.jwas_34_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/06/2023] [Indexed: 07/12/2024]
Abstract
Background Stroke is the second most common cause of death worldwide. It also represents one of the most common causes of disability, affecting both children and adults. The identification of risk factors for stroke is critical in preventing its occurrence. Carotid atherosclerosis is one of the most significant risk factors of stroke, yet it is not routinely evaluated in these patients. Materials and Methods We prospectively recruited 119 patients aged ≥18 years with stroke confirmed by computed tomography scan. The risk factors for stroke in these patients were identified, and carotid artery Doppler was performed to identify those with atherosclerosis. Results Eighty-one (68%) of the 119 subjects showed abnormalities in the carotid arteries in the form of increased IMT or atheromatous plaque. The mean ± SD IMT of the right common carotid artery (CCA) was 1.07 ± 0.25 mm and 1.08 ± 0.26 mm for the left CCA. The IMT mean ± SD of the right and left ICA were 0.99 ± 0.18 mm and 0.99 ± 0.17 mm, respectively. There were 36 patients (30.2%) with atheromatous plaques, of which 57.8% were unstable and liable to rupture. The carotid bulbs were the most common sites for plaques, accounting for 47.2% of cases. No abnormalities in velocimetric indices were recorded. Conclusion Carotid atherosclerosis is common in stroke patients and is a major risk factor. The evaluation of stroke patients for carotid atherosclerosis is rarely done, as most of the subjects examined only had it for the first time in this study after development of stroke.
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Affiliation(s)
| | - Yusuf Lawal
- Department of Radiology, Faculty of Clinical Sciences, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Kabir Isyaku
- Department of Radiology, Faculty of Clinical Sciences, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Idris Sule Kazaure
- Department of Radiology, Faculty of Clinical Sciences, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Muhammad Abba Suwaid
- Department of Radiology, Faculty of Clinical Sciences, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Anas Ismail
- Department of Radiology, Faculty of Clinical Sciences, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
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Nwazor E, Chukwuocha I, Ajuonuma B, Obi P, Madueke O. A 2-year review of stroke admissions and short term out-come predictors in a teaching hospital, Southeast, Nigeria. Niger Med J 2024; 65:185-194. [PMID: 39005552 PMCID: PMC11240201 DOI: 10.60787/nmj-v65i2-442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
Background Stroke is a common neurological disorder with a huge global burden in terms of mortality and morbidity. Epidemiological evidence has shown that modifiable risk factors are responsible for more than 90% of all strokes. Stroke outcome in hospitalized patients is influenced by several variables, such as socio-demographic factors, stroke subtype, and admission severity. The interaction between stroke outcomes and these parameters is often complex. The study is aimed to profile hospitalized stroke patients and determine outcome predictors. Methodology A descriptive retrospective study of 100 patients hospitalized for acute stroke. Their medical records were reviewed for demographic and clinical variables and relevant data were retrieved and analysed using appropriate statistical methods. Results Of the 100 acute stroke patients studied, 36% were men and 64% were women. The mean age was 65.16±15.72. About 78%had ischemic stroke while 21% had haemorrhagic strokes. The commonest risk factor was hypertension (71.2%). On multivariate analysis, stroke subtype and admission duration were significantly linked to stroke outcome. Conclusion Ischemic stroke comprises more than two-thirds of stroke admissions, with hypertension being the most common risk factor and stroke case fatality of 23%. Stroke subtype and admission duration significantly predicted stroke outcomes. The need to step up measures aimed at improving acute stroke care in hospitalized patients is imperative as this will hopefully improve overall outcomes in resource constraint settings such as Nigeria.
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Affiliation(s)
- Ernest Nwazor
- Department of Internal Medicine Federal University Teaching Hospital Owerri, Nigeria
- Department of Internal Medicine, Rivers State University Teaching Hospital, Port Harcourt, Nigeria
| | - Ikechukwu Chukwuocha
- Department of Internal Medicine Federal University Teaching Hospital Owerri, Nigeria
| | - Benneth Ajuonuma
- Department of Internal Medicine Federal University Teaching Hospital Owerri, Nigeria
- Department of Internal Medicine, Rivers State University Teaching Hospital, Port Harcourt, Nigeria
| | - Patrick Obi
- Department of Internal Medicine Federal University Teaching Hospital Owerri, Nigeria
- Department of Internal Medicine, Rivers State University Teaching Hospital, Port Harcourt, Nigeria
| | - Onyedika Madueke
- Department of Internal Medicine Federal University Teaching Hospital Owerri, Nigeria
- Department of Internal Medicine, Rivers State University Teaching Hospital, Port Harcourt, Nigeria
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Otabor EO, Alaka A, Onwuzo CN, Olukorode J, Fagbenro A, Ajiboye A. Exploring the Epidemiology of Atrial Fibrillation in Nigeria: A Focus on Atrial Fibrillation in Heart Failure Patients and Its Association With Stroke. Cureus 2024; 16:e55241. [PMID: 38558636 PMCID: PMC10981445 DOI: 10.7759/cureus.55241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Atrial fibrillation (AF) represents a significant global public health concern, particularly due to its association with adverse health outcomes such as stroke and heart failure. In Nigeria, where the burden of cardiovascular diseases is rising, understanding the prevalence and impact of AF is crucial for effective healthcare planning and intervention strategies. This review examines the epidemiology of AF in Nigeria, comparing it with global and African data. It explores demographic and regional variations, comorbidity factors, and the impact of AF on the healthcare system, mortality, and quality of life. Notably, the prevalence of AF in Nigeria generally falls just under 5%, but this figure rises to approximately 9% in stroke patients and 11-20% among those with heart failure (HF). Rheumatic heart disease (RHD) is identified as a significant AF risk factor within Africa, affecting around 20% of AF patients - a stark contrast to the 2% in North America. AF's association with higher mortality rates and functional deterioration highlights the urgent need for improved diagnostic and therapeutic approaches, alongside broader public health measures. In conclusion, the review emphasises the significant public health concern AF represents in Nigeria, especially among HF and stroke patients, and stresses the importance of tailored healthcare policies and interventions to mitigate AF's impact and improve patient outcomes.
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Affiliation(s)
- Emmanuel O Otabor
- Internal Medicine, South Warwickshire NHS Foundation Trust, Warwick, GBR
| | - Abiola Alaka
- Internal Medicine, University of Michigan, Ann Arbor, USA
| | - Chidera N Onwuzo
- Internal Medicine, Benjamin S. Carson College of Health and Medical Sciences, Ilishan-Remo, NGA
| | - John Olukorode
- Internal Medicine, Benjamin S. Carson College of Health and Medical Sciences, Ilishan-Remo, NGA
| | - Adeniyi Fagbenro
- Internal Medicine, Bowen University College of Health Sciences, Iwo, NGA
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Ackah M, Ameyaw L, Appiah R, Owiredu D, Boakye H, Donaldy W, Yarfi C, Abonie US. 30-day in-hospital stroke case fatality and significant risk factors in sub-Saharan-Africa: A systematic review and meta-analysis. PLOS GLOBAL PUBLIC HEALTH 2024; 4:e0002769. [PMID: 38241232 PMCID: PMC10798456 DOI: 10.1371/journal.pgph.0002769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 01/01/2024] [Indexed: 01/21/2024]
Abstract
Existing studies investigating 30-day in-hospital stroke case fatality rates in sub-Saharan Africa have produced varying results, underscoring the significance of obtaining precise and reliable estimations for this indicator. Consequently, this study aimed to conduct a systematic review and update of the current scientific evidence regarding 30-day in-hospital stroke case fatality and associated risk factors in sub-Saharan Africa. Medline/PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), APA PsycNet (encompassing PsycINFO and PsychArticle), Google Scholar, and Africa Journal Online (AJOL) were systematically searched to identify potentially relevant articles. Two independent assessors extracted the data from the eligible studies using a pre-tested and standardized excel spreadsheet. Outcomes were 30-day in-hospital stroke case fatality and associated risk factors. Data was pooled using random effects model. Ninety-three (93) studies involving 42,057 participants were included. The overall stroke case fatality rate was 27% [25%-29%]. Subgroup analysis revealed 24% [21%-28%], 25% [21%-28%], 29% [25%-32%] and 31% [20%-43%] stroke case fatality rates in East Africa, Southern Africa, West Africa, and Central Africa respectively. Stroke severity, stroke type, untyped stroke, and post-stroke complications were identified as risk factors. The most prevalent risk factors were low (<8) Glasgow Coma Scale score, high (≥10) National Institute Health Stroke Scale score, aspiration pneumonia, hemorrhagic stroke, brain edema/intra-cranial pressure, hyperglycemia, untyped stroke (stroke diagnosis not confirmed by neuroimaging), recurrent stroke and fever. The findings indicate that one in every four in-hospital people with stroke in sub-Saharan Africa dies within 30 days of admission. Importantly, the identified risk factors are mostly modifiable and preventable, highlighting the need for context-driven health policies, clinical guidelines, and treatments targeting these factors.
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Affiliation(s)
- Martin Ackah
- Faculty of Health and Life Sciences Northumbria University University, Department of Sport, Exercise & Rehabilitation, Newcastle upon Tyne, United Kingdom
| | - Louise Ameyaw
- Department of Medicine, Achimota Government Hospital, Accra, Ghana
| | - Richard Appiah
- Faculty of Health and Life Sciences Northumbria University University, Department of Psychology, Newcastle upon Tyne, United Kingdom
- Department of Occupational therapy, College of Health Sciences, University of Ghana, Korle-Bu, Accra, Ghana
| | - David Owiredu
- Centre for Evidence synthesis, University of Ghana, Accra, Ghana
| | - Hosea Boakye
- Department of Physiotherapy, LEKMA Hospital, Accra, Ghana
| | | | - Comos Yarfi
- Department of Physiotherapy, University of Allied and Health Sciences, Ho, Ghana
| | - Ulric S. Abonie
- Faculty of Health and Life Sciences Northumbria University University, Department of Sport, Exercise & Rehabilitation, Newcastle upon Tyne, United Kingdom
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Onwuakagba IU, Okoye EC, Kanu FC, Kalu CM, Akaeme DC, Obaji OC, Akosile CO. Population-based stroke risk profile from a West-African community. eNeurologicalSci 2023; 33:100483. [PMID: 38020075 PMCID: PMC10643094 DOI: 10.1016/j.ensci.2023.100483] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/10/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Objectives To determine the stroke risk profile of dwellers of Nnewi community in Nigeria. Methods This was a cross-sectional survey involving consecutively recruited community-dwelling adults without a previous history of stroke. The Modified Framingham Stroke Risk Score (MFSRS) was used to evaluate the stroke risk profile of the participants. Data was analysed using descriptive and inferential statistics at an alpha level of 0.05. Result 310 individuals (mean age = 37.21 ± 15.84 years; 68.7% females) participated in this study. The mean MFSRS (6.79 ± 5.21) of the participants was minimal with 16% having a moderate-to-high risk. Dyslipidaemia (100.0%), meat (88.1%) and sugar (70.6%) consumption, hypertension (37.7%), physical inactivity (43.2%), and psychological stress (41.3%) were the most prevalent risk factors in the population. Participants' MFSRS significantly and positively correlated with their body mass index (BMI), waist circumference (WC), and waist-hip ratio (WHR) and significantly differed across their gender, educational, and occupational categories (p < 0.05). Conclusion According to MFSRS, the risk of stroke among the sampled community was minimal and was significantly influenced by their BMI, WC, WHR, gender, education, and occupation. However, results revealed that stroke risk might be higher in the population than was depicted by the MFSRS. Enlightenment on the risk of stroke is needed in the community.
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Affiliation(s)
- Ifeoma Uchenna Onwuakagba
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
| | - Emmanuel Chiebuka Okoye
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
| | - Favour Chidera Kanu
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
| | - Chukwuemeka Michael Kalu
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
| | - Daniel Chidubem Akaeme
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
| | | | - Christopher Olusanjo Akosile
- Department of Medical Rehabilitation, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Nnewi, Anambra State, Nigeria
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Azeez TA, Durotoluwa IM, Makanjuola AI. Diabetes Mellitus as a risk factor for stroke among Nigerians: A systematic review and meta-analysis. INTERNATIONAL JOURNAL OF CARDIOLOGY. CARDIOVASCULAR RISK AND PREVENTION 2023; 18:200189. [PMID: 37250184 PMCID: PMC10220413 DOI: 10.1016/j.ijcrp.2023.200189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/03/2023] [Accepted: 05/18/2023] [Indexed: 05/31/2023]
Abstract
Background Diabetes mellitus is one of the modifiable risk factors for stroke. Stroke is common in Nigeria, but there is a paucity of national data on the frequency of diabetes in stroke. This study aimed to estimate to what extent diabetes a risk factor for stroke in Nigeria. Methods The study design is a systematic review, and the PRISMA guidelines were strictly followed. African Journal Online (AJOL), PubMed, SCOPUS and Google Scholar were systematically searched. The Newcastle-Ottawa scale was used to assess the quality, heterogeneity was determined with the I2 statistic, and the DerSimonian Laird random effect model was selected for the meta-analysis. Results The studies were distributed across different regions of the country. The total sample size was 9397. The weighted average age of the patients with stroke was 53.7 years. The attributable risk of diabetes in stroke, among Nigerian patients, was 0.20 (95% CI: 0.17-0.22; p < 0.0001). The attributable risk has been rising steadily since the advent of the new century, and it is relatively higher in southern Nigeria. Conclusion The attributable risk of diabetes in stroke, among Nigerian patients is high. This varies across the regions but it is rising progressively nationally.
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Abdu H, Tadese F, Seyoum G. Clinical profiles, comorbidities, and treatment outcomes of stroke in the medical ward of Dessie comprehensive specialized hospital, Northeast Ethiopia; a retrospective study. BMC Neurol 2022; 22:399. [PMID: 36319961 PMCID: PMC9624020 DOI: 10.1186/s12883-022-02916-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022] Open
Abstract
Background: Undoubtedly, stroke is expanding as a global public health issue. Stroke-related deaths are attributable to modifiable risk factors. A demographic shift in Ethiopia increased the prevalence of stroke risk factors. Furthermore, there is limited relevant information available about stroke. Therefore, the current study sought to evaluate the clinical profiles, comorbidities, and treatment outcomes of stroke in the medical ward of Dessie comprehensive specialized hospital. Methods: A retrospective cross-sectional study design was employed among stroke patients. The study included medical records with complete patient information and a stroke diagnosis that had been verified using imaging techniques. Using simple random sampling, 344 medical records were selected, 312 of which met the requirements for inclusion. The frequency and percentage of sociodemographic characteristics and other variables were described using descriptive statistics. Results: The patients were 59.2 ± 14.6 years old on average. About 14.7% of the study participants were chat chewers. Of stroke victims, about 52.2% had sensory loss and limb weakness. Nearly 44.9% of the patients had hemiplegia or hemiparesis when they were first seen, and 25.3% were unconscious. Hypertension (63.1%), atrial fibrillation (15.1%), and structural heart diseases (12.5%) were the frequently seen co-morbidities in stroke patients. About 35.8% of the patients had fully recovered and were released go from the hospital without suffering any repercussions. However, hospital deaths from stroke accounted for 21.8% of cases. Stroke fatalities usually involved hypertension, atrial fibrillation, and structural heart disorders. Conclusion: Sensory deficits, limb weakness, and mentation loss were all common clinical presentations in stroke patients. In particular, hypertension, atrial fibrillation, and structural heart diseases were commonly seen as comorbidities in stroke patients. Stroke mortality was high in the hospital. Thus, establishing promotive, preventive, curative, and rehabilitative strategies is indispensable.
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Affiliation(s)
- Hussen Abdu
- grid.467130.70000 0004 0515 5212Department of Anatomy, School of Medicine, College of Health Sciences, Wollo University, Dessie, Ethiopia
| | - Fentaw Tadese
- grid.467130.70000 0004 0515 5212Department of Epidemiology and Biostatistics, School of Public Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Girma Seyoum
- grid.7123.70000 0001 1250 5688Department of Anatomy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
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Bekele DM, Goshu DY, Yalew AW, Higgins MK, Gary RA. Low Subjective Cardiovascular Disease Risk Perceptions among Hypertensive Patients in Addis Ababa, Ethiopia. Integr Blood Press Control 2022; 15:81-96. [PMID: 35959381 PMCID: PMC9363046 DOI: 10.2147/ibpc.s370838] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022] Open
Abstract
Background Accurate cardiovascular disease (CVD) risk appraisal is essential for hypertensive patients to identify correctly their risk status and take efficient behavioral measures timely to avoid major adverse outcomes. However, hypertensive patients’ risk perceptions of CVD events in Ethiopia are unknown. Thus, the study aimed to compare the subjective CVD risk perception level of patients with the nonlaboratory Framingham Risk Score (nl-FRS). Methods A cross-sectional design was used. The Attitudes and Beliefs about Cardiovascular Disease Risk Questionnaire and the nl-FRS were used to compare subjective versus objective measures of CVD risk. Agreement between participants’ risk perceptions and the nl-FRS were examined using the kappa statistic. Bivariate chi-square test and multinomial logistic regression analyses were run to identify factors associated with risk perceptions. The statistical significance was set at a p-value < 0.05 level. Results Participants (n=377) had a mean age of 53.61 ± 12.80-years, range (18–82 years), 51.2% were males, 42.7% had less than high school education, 45.1% achieved target BP control, and mean HTN duration was 8.01 ± 6.07 years. The majority (58.62%) of the participants had a low subjective risk perception of CVD events (mean 17.79, 95% CI: 17.43–18.15). Approximately three-fourths (72.4%) had a moderate nl-FRS risk calculation (mean, 13.84, 95% CI: 13.36–14.33). Agreement between participants perceived-risk and the nl-FRS was poor (kappa = 0.0002, standard error = 0.023, p =0.99). Participants’ CVD risk-perception inaccuracy was also high (76%) primarily due to underestimation. Hypertension duration, frequency of physician visits, and level of diabetes control were significant predictors of CVD risk underestimation. Conclusion Hypertensive patients had inaccurate and low subjective risk perceptions of CVD events compared to moderate objective risks identified using the nl-FRS. Planned education on HTN and CVD risk factors is essential to improve patients’ CVD risk perception to reduce adverse CVD events.
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Affiliation(s)
- Daniel Mengistu Bekele
- Department of Nursing, School of Nursing and Midwifery, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Correspondence: Daniel Mengistu Bekele, Department of Nursing, School of Nursing and Midwifery, College of Health Sciences Addis Ababa University, P. O. Box 4412, Addis Ababa, Ethiopia, Tel +251-911119597, Email
| | - Dejuma Yadeta Goshu
- Department of Internal Medicine, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Alemayehu Worku Yalew
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Melinda K Higgins
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
| | - Rebecca A Gary
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
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Ferreira J, Cunha P, Carneiro A, Vila I, Cunha C, Silva C, Longatto-Filho A, Mesquita A, Cotter J, Correia-Neves M, Mansilha A. Is Obesity a Risk Factor for Carotid Atherosclerotic Disease?—Opportunistic Review. J Cardiovasc Dev Dis 2022; 9:jcdd9050162. [PMID: 35621873 PMCID: PMC9144226 DOI: 10.3390/jcdd9050162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/02/2022] [Accepted: 05/08/2022] [Indexed: 02/06/2023] Open
Abstract
Obesity is a risk factor for coronary atherosclerosis. However, the influence of adipose tissue in carotid atherosclerosis is not completely understood. No systematic review/meta-analysis was previously performed to understand if obesity is a risk factor for carotid atherosclerosis. This paper aims to provide an opportunistic review of the association between obesity and carotid atherosclerosis and define the role of the different adipose tissue depots in the characteristics of carotid stenosis. The databases PubMed and Cochrane Library were searched on 15–27 April and 19 May 2021. A total of 1750 articles published between 1985 and 2019 were identified, 64 were preselected, and 38 papers (35,339 subjects) were included in the final review. The most frequent methods used to determine obesity were anthropometric measures. Carotid plaque was mostly characterized by ultrasound. Overall obesity and visceral fat were not associated with the presence of carotid plaque when evaluated separately. Waist-hip ratio, however, was a significant anthropometric measure associated with the prevalence of carotid plaques. As it reflected the ratio of visceral and subcutaneous adipose tissue, the balance between these depots could impact the prevalence of carotid plaques.
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Affiliation(s)
- Joana Ferreira
- Vascular Surgery Department, Hospital de Trás-os-Montes, 5000-508 Vila Real, Portugal
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Correspondence: ; Tel.: +351-962-958-421
| | - Pedro Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Alexandre Carneiro
- Radiology Department, Unidade Local de Saúde Alto Minho, 4904-858 Viana do Castelo, Portugal;
| | - Isabel Vila
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Cunha
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Cristina Silva
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Department of Pathology (LIM-14), University of São Paulo School of Medicine, São Paulo 01246-903, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo 14784-400, Brazil
| | - Amílcar Mesquita
- Vascular Surgery Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal;
| | - Jorge Cotter
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
- Center for the Research and Treatment of Arterial Hypertension and Cardiovascular Risk, Internal Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
- Medicine Department, Hospital da Senhora da Oliveira, 4835-044 Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Science Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (P.C.); (I.V.); (C.C.); (C.S.); (A.L.-F.); (J.C.); (M.C.-N.)
| | - Armando Mansilha
- Faculdade de Medicina da Universidade do Porto, 4200-319 Porto, Portugal;
- Vascular Surgery Department, Hospital de São João, 4200-319 Porto, Portugal
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Al-Mistarehi AH, Elsayed MA, Ibrahim RM, Elzubair TH, Badi S, Ahmed MH, Alkhaddash R, Ali MK, Khader YS, Alomari S. Clinical Outcomes of Primary Subarachnoid Hemorrhage: An Exploratory Cohort Study from Sudan. Neurohospitalist 2022; 12:249-263. [PMID: 35419154 PMCID: PMC8995598 DOI: 10.1177/19418744211068289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Although Subarachnoid Hemorrhage (SAH) is an emergency condition, its epidemiology and prognosis remain poorly understood in Africa. We aim to explore the clinical presentations, outcomes, and potential mortality predictors of primary SAH patients within 3 weeks of hospitalization in a tertiary hospital in Sudan. Methods We prospectively studied 40 SAH patients over 5 months, with 3 weeks of follow-up for the symptomatology, signs, Glasgow coma scale (GCS), CT scan findings, and outcomes. The fatal outcome group was defined as dying within 3 weeks. Results The mean age was 53.5 years (SD, 6.9; range, 41–65), and 62.5% were women. One-third (30.0%) were smokers, 37.5% were hypertensive, two-thirds (62.5%) had elevated blood pressure on admission, 37.5% had >24 hours delayed presentation, and 15% had missed SAH diagnosis. The most common presenting symptoms were headache and neck pain/stiffness, while seizures were reported in 12.5%. Approximately one-quarter of patients (22.5%) had large-sized Computed Tomography scan hemorrhage, and 40.0% had moderate size. In-hospital mortality rate was 40.0% (16/40); and 87.5% of them passed away within the first week. Compared to survivors, fatal outcome patients had significantly higher rates of smoking (50.0%), hypertension (68.8%), elevated presenting blood pressure (93.8%), delayed diagnosis (56.2%), large hemorrhage (56.2%), lower GCS scores at presentation, and cerebral rebleeding ( P < 0.05 for each). The primary causes of death were the direct effect of the primary hemorrhage (43.8%), rebleeding (31.3%), and delayed cerebral infarction (12.5%). Conclusions SAH is associated with a high in-hospital mortality rate in this cohort of Sudanese SAH patients due to modifiable factors such as delayed diagnosis, hypertension, and smoking. Strategies toward minimizing these factors are recommended.
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Affiliation(s)
- Abdel-Hameed Al-Mistarehi
- Department of Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Muaz A. Elsayed
- Department of Neurology, Faculty of Medicine and Health Sciences, Omdurman Islamic University, Omdurman Teaching Hospital / Sudan Medical Specialization Board, Khartoum, Sudan
| | | | - Tarig Hassan Elzubair
- Department of Psychiatry, Faculty of Medicine, University of Science and Technology (UST), Khartoum, Sudan
| | - Safaa Badi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Omdurman Islamic University, Khartoum, Sudan
| | - Mohamed H. Ahmed
- Department of Medicine and HIV Metabolic Clinic, Milton Keynes University Hospital, NHS Foundation Trust, Eaglestone, Milton Keynes, Buckinghamshire, UK
| | - Raed Alkhaddash
- Department of Neurology, The University of Tennessee Health Science Center (UTHSC), Memphis, TN, USA
| | - Musaab K. Ali
- Department of Emergency Medicine, King Abdullah University Hospital, Irbid, Jordan/Faculty of Medicine and Health Sciences, Omdurman Islamic University, Khartoum, Sudan
| | - Yousef S. Khader
- Department of Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Safwan Alomari
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Screening for Atrial Fibrillation in Sub-Saharan Africa: A Health Economic Evaluation to Assess the Feasibility in Nigeria. Glob Heart 2021; 16:80. [PMID: 34900571 PMCID: PMC8641527 DOI: 10.5334/gh.893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 11/05/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Cardiovascular disease reflects a major burden of non-communicable disease in Sub-Saharan Africa (SSA). Early detection and treatment of atrial fibrillation (AF), as a preventive measure against stroke, is currently not in the scope of the World Health Organization recommendation to reduce cardiovascular disease. Objective: We hypothesized that screening for AF would be an important approach to determine the true AF prevalence in the general population in African countries and to identify asymptomatic AF patients at risk for stroke to optimize prevention. Methods: A decision analytic model was developed to study the health-economic impact of AF screening in Nigeria over a life-time horizon. The patient population explored in the model was a population of newly detected AF cases that would be diagnosed with a one-time systematic screening for AF with a single lead ECG device in community health centres across Nigeria. Conclusions: The health gain per newly detected AF patient (N = 31,687) was 0.41 QALY at a cost of $5,205 per patient with 100% NOAC use, leading to an ICER of $12,587 per QALY gained. The intervention was cost-effective with a 99.9% warfarin use with an ICER of $1,363 per QALY gained. The total cost of a single screening session was $7.3 million for the total screened population in Nigeria or $1.60 per patient screened. Screening for AF to detect AF patients in need for stroke prevention can be a cost-effective intervention in the Sub-Saharan region, depending on type of anticoagulant used and drug costs.
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12
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Dokponou YCH, Kotecha J, Bandyopadhyay S, Erhabor J, Ooi SZY, Egiz A, Boutarbouch M, Dalle DU, Higginbotham G, Thioub M, Sichimba D, Bankole NDA, Kanmounye US. Continental Survey of Access to Diagnostic Tools and Endovascular Management of Aneurysmal Subarachnoid Hemorrhage in Africa. Front Surg 2021; 8:690714. [PMID: 34355014 PMCID: PMC8329527 DOI: 10.3389/fsurg.2021.690714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 06/14/2021] [Indexed: 11/18/2022] Open
Abstract
Rationale: Interventional neurovascular procedures are effective in lowering the burden of mortality and complications resulting from aneurysmal subarachnoid hemorrhage (aSAH). Despite the wide uptake of interventional neurovascular procedures in high-income countries, access to care in low- and middle-income countries remains limited, and little is known about accessibility in Africa. In this survey, we decided to assess access to diagnostic tools and treatment of aSAH in Africa. Methodology: A Google form e-survey was distributed to African neurosurgery centers accepting responses from January 4th to March 21st 2021. Data on accessibility to diagnostic tools, treatment methodologies, and interventional neuroradiology personnel in African centers were collected. Ninety five percent confidence intervals were computed for each variable. Results: Data was received from 36 neurosurgical centers in 16 African countries (16/54, 30%). Most centers were public institutions. Ninety four percent of the centers had the necessary resources for a lumbar puncture (LP) and a laboratory for the diagnosis of aSAH. Most centers had at least one computed tomography (CT) scanner, 81% of the centers had access to CT angiography and some had access to conventional angiography. Forty seven percent of the centers could obtain a head CT within 2 h of presentation in an emergency. Sixty one percent of centers provided clipping of intracranial aneurysms whilst only 22% of centers could perform the endovascular treatment. Sixty four percent of centers did not have an endovascular specialist. Conclusion: This survey highlights health inequity in access to endovascular treatment for aSAH. Lack of diagnostic tools to identify an aneurysm and a shortfall of qualified endovascular specialists are prime reasons for this. Our findings can inform health system strengthening policies including the acquisition of equipment and capacity building in Africa.
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Affiliation(s)
- Yao Christian Hugues Dokponou
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon.,Department of Neurosurgery, Mohammed V University, Rabat, Morocco
| | - Jay Kotecha
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - Soham Bandyopadhyay
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - Joshua Erhabor
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | | | - Abdullah Egiz
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | | | - David Ulrich Dalle
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - George Higginbotham
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - Mbaye Thioub
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - Dawin Sichimba
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon
| | - Nourou Dine Adeniran Bankole
- Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon.,Department of Neurosurgery, Mohammed V University, Rabat, Morocco
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Comparison of Ischemic and Hemorrhagic Stroke in the Medical Ward of Dessie Referral Hospital, Northeast Ethiopia: A Retrospective Study. Neurol Res Int 2021; 2021:9996958. [PMID: 34258063 PMCID: PMC8257343 DOI: 10.1155/2021/9996958] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/18/2021] [Indexed: 11/19/2022] Open
Abstract
Background Distinguishing the category of stroke plays a vital role in planning patient care. Simple clinical findings help distinguish the type of stroke. However, there is a need for diagnostic imaging. In Ethiopia, stroke is the most common neurological condition in patients admitted to hospitals. Yet, there are limited data on comparisons of stroke subtypes. Thus, this study was designed to determine the prevalence of stroke and to compare ischemic and hemorrhagic strokes. Methods A retrospective cross-sectional study design was employed. Medical records containing complete information and confirmed diagnosis using imaging techniques were included. The data were entered into SPSS version 24.0 for analysis. Results with a P value of <0.05 were considered statistically significant. Results From a total of 312 stroke patients, 204 (65.4%) patients were admitted due to ischemic stroke. More females, 59 (18.9%), were admitted for hemorrhagic stroke than males. In both ischemic, 175 (56.1%) and hemorrhagic, 91 (29.2%) stroke cases, most of the patients were 45 years and above. Middle cerebral artery territory was the most common site of arterial territory infarctions in ischemic stroke, 158 (50.7%). Middle cerebral artery territory also was the most common site of hematoma in hemorrhagic stroke, 91 (29.2%). Infarctions in more than one lobe of the cerebrum (16.4%) and intracerebral hemorrhage in multiple areas of the cerebrum (7.4%) were observed in ischemic as well as hemorrhagic stroke cases. Most of the ischemic, 124 (39.8%), and hemorrhagic, 39 (12.5%), stroke patients presented loss of sensation and weakness of body parts. Hypertension was observed in 124 (39.8%) ischemic and 73 (23.4%) hemorrhagic stroke patients. The mortality rate of ischemic stroke, 47 (15.3%), was two times higher than hemorrhagic stroke, 20 (6.5%). Hypertension was the most common predictor of death in both ischemic and hemorrhagic stroke cases. Conclusions Ischemic stroke is a common type of stroke in the medical ward of the study hospital. More females were affected by hemorrhagic stroke than males. Middle cerebral artery territory was the most affected area of the brain in both ischemic and hemorrhagic strokes. Most ischemic and hemorrhagic stroke patients were admitted due to loss of sensation and weakness of body parts. Hypertension was the most common risk factor of stroke as well as a predictor of stroke-related deaths. Identification of the stroke subtypes may be important in the management of stroke. Thus, health professionals, government officials, community leaders, and the population at large could be involved in creating awareness about antecedent risk factors and clinical presentations of stroke subtypes.
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Xu M, Guo J, Tao X, Zeng K. The Efficacy and Safety of Intravenous Thrombolysis in Older Chinese Patients with Acute Ischemic Stroke. Neurol India 2021; 69:91-96. [PMID: 33642277 DOI: 10.4103/0028-3886.310086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
To study the efficacy and safety of intravenous thrombolysis for the older acute ischemic stroke patients, clinical data were prospectively analyzed from 168 patients with acute ischemic stroke including 42 older adult patients (ET group), 66 younger patients (NET group) treated with rt-PA, and 60 older adult patients treated without rt-PA (ENT group). Stroke severity was assessed with an NIHSS score at baseline, 1-day and 14-day after treatment. Functional outcomes were evaluated by the modified Rankin scale and a Barthel index. Adverse effects were observed during the treatment. The rate of "good" prognosis was higher in the ET group than that in the ENT group at 90 days post-stroke. In older patients with stroke, thrombolytic therapy was found to be of greater benefit to patients with lower NIHSS scores at baseline, or patients classified as posterior circulation infarction, than for patients with higher NIHSS scores or infarctions located in other brain regions. Thrombolytic therapy may exhibit long-term efficacy by improving the future quality of life for older stroke patients with fewer bleeding risk factors and lower baseline NIHSS scores.
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Affiliation(s)
- Ming Xu
- Department of Neurology, First Affliated Hospital of Chongqing Medical University; Department of Neurology, Dazu Hospital, Chongqing, China
| | - Jiamei Guo
- Department of Neurology, First Affliated Hospital of Chongqing Medical University; Psychiatry, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xianming Tao
- Department of Neurology, First Affliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kebin Zeng
- Department of Neurology, First Affliated Hospital of Chongqing Medical University, Chongqing, China
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15
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Treatment Outcome and Its Determinants among Patients Admitted to Stroke Unit of Jimma University Medical Center, Southwest Ethiopia. Stroke Res Treat 2021; 2020:8817948. [PMID: 33489080 PMCID: PMC7790566 DOI: 10.1155/2020/8817948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/06/2020] [Accepted: 12/21/2020] [Indexed: 11/17/2022] Open
Abstract
Background Stroke is a public health problem in Ethiopia. Despite the high prevalence of stroke in Ethiopia, there is a paucity of data with regard to drug treatment, treatment outcome, and risk factors of poor treatment outcome of stroke. Hence, this study is aimed at assessing treatment outcome and its determinants among patients admitted to stroke unit of Jimma University Medical Center (JUMC). Methods A two-year hospital-based retrospective cross-sectional study was employed to analyze the medical records of patients admitted with stroke to stroke unit of Jimma University Medical Centre from February 1st, 2016 to March 30th, 2018. Data was entered by Epidata manager version 4.0.2 and analyzed by SPSS version 24. Multivariable logistic regression analysis with the backward stepwise approach was done to identify independent predictors of poor treatment outcome of stroke. Variables with P value less than 0.05 were considered as statically significant determinants of poor treatment outcome. Results Of 220 patients with stroke admitted to the Jimma University, 67.30% were male. Nearly two thirds (63.18%) of them had poor treatment outcomes. Dyslipidimics were administered to 60% of the patients, and the most popular antiplatelet used was aspirin, which was prescribed to 67.3% the patients. Age ≥ 65 adjusted odd ratio ((AOR): 2.56; 95% CI: 1.95-9.86, P = 0.001), presence of comorbidity (AOR: 5.25; 95% CI: 1.08-17.69, P < 0.001), admission with hemorrhagic stroke (AOR: 18.99; 95% CI: 7.05-42.07, P < 0.001), and admission to the hospital after 24 hour of stroke onset (AOR: 4.98; 95% CI: 1.09-21.91, P = 0.03) were independent predictors of poor treatment outcomes. Conclusion Substantial numbers of stroke patients had poor treatment outcomes. Elderly patients, patients diagnosed with hemorrhagic stroke, patients with comorbidity, and those with delayed hospital admission were more likely to have poor treatment outcome. Hence, frequent monitoring and care should be given for the aforementioned patients. Awareness creation on the importance of early admission should be delivered particularly for patients who have risk factors of stroke (cardiovascular diseases).
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16
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Kefale B, Ewunetei A, Molla M, Tegegne GT, Degu A. Clinical pattern and predictors of stroke treatment outcome among hospitalised patients who had a stroke at Felege Hiwot comprehensive specialised hospital, northwest Ethiopia: a retrospective cross-sectional study. BMJ Open 2020; 10:e040238. [PMID: 33384388 PMCID: PMC7780509 DOI: 10.1136/bmjopen-2020-040238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES This study aimed to assess the clinical pattern and predictors of stroke treatment outcomes among hospitalised patients in Felege Hiwot comprehensive specialised hospital (FHCSH) in northwest Ethiopia. DESIGN A retrospective cross-sectional study. SETTING The study was conducted medical ward of FHCSH. PARTICIPANTS The medical records of 597 adult patients who had a stroke were included in the study. All adult (≥18 years) patients who had a stroke had been admitted to the medical ward of FHSCH during 2015-2019 were included in the study. However, patients with incomplete medical records (ie, incomplete treatment regimen and the status of the patients after treatment) were excluded in the study. RESULTS In the present study, 317 (53.1%) were males, and the mean age of the study participants was 61.08±13.76 years. About two-thirds of patients (392, 65.7%) were diagnosed with ischaemic stroke. Regarding clinical pattern, about 203 (34.0%) of patients complained of right-side body weakness and the major comorbid condition identified was hypertension (216, 64.9%). Overall, 276 (46.2%) of them had poor treatment outcomes, and 101 (16.9%) of them died. Patients who cannot read and write (AOR=42.89, 95% CI 13.23 to 111.28, p<0.001), attend primary school (AOR=22.11, 95% CI 6.98 to 55.99, p<0.001) and secondary school (AOR=4.20, 95% CI 1.42 to 12.51, p<0.001), diagnosed with haemorrhagic stroke (AOR=2.68, 95% CI 1.62 to 4.43, p<0.001) and delayed hospital arrival more than 24 hours (AOR=2.92, 95% CI 1.83 to 4.66, p=0.001) were the independent predictors of poor treatment outcome. CONCLUSIONS Approximately half of the patients who had a stroke had poor treatment outcomes. Ischaemic stroke was the most predominantly diagnosed stroke type. Education status, types of stroke and the median time from onset of symptoms to hospitalisation were the predictors of treatment outcome. Health education should be given to patients regarding clinical symptoms of stroke. In addition, local healthcare providers need to consider the above risk factors while managing stroke.
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Affiliation(s)
- Belayneh Kefale
- Clinical Pharmacy Unit and Research Team, Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Amhara, Ethiopia
| | - Amien Ewunetei
- Pharmacology Unit and Research Team, Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Amhara, Ethiopia
| | - Mulugeta Molla
- Pharmacology Unit and Research Team, Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Amhara, Ethiopia
| | - Gobezie Temesgen Tegegne
- Department of Pharmacology and Clinical Pharmacy, Addis Ababa University College of Health Sciences, Addis Ababa, Oromia, Ethiopia
| | - Amsalu Degu
- Department of Pharmaceutics and Pharmacy Practice, School of Pharmacy and Health Sciences, United States International University-Africa, Nairobi, Kenya
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Santos IS, Goulart AC, Olmos RD, Thomas GN, Lip GYH, Lotufo PA, Benseñor IM. Atrial fibrillation in low- and middle-income countries: a narrative review. Eur Heart J Suppl 2020; 22:O61-O77. [PMID: 33380945 PMCID: PMC7753884 DOI: 10.1093/eurheartj/suaa181] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Preventing premature non-communicable disease mortality necessitates a thorough review of one of the most important risk factors for stroke, which is atrial fibrillation (AF). The latter and AF-related stroke are still considered to be problems of high-income countries and are frequently overlooked in low- and middle-income countries (LMICs). In this narrative review, we provide an overview of studies that evaluated at least one of the following determinants of AF burden in LMICs: current epidemiology and trends, stroke prevention, health outcomes, and economic burden. Studies focusing on samples close to the general population (including community- and primary care-based samples) indicate sex-specific prevalence rates up to 7.4% in LMICs. Although AF prevalence is still higher in high-income countries than LMICs, the gap in AF burden between these two groups has been reducing in the past three decades. Oral anticoagulant (OAC) therapy for stroke prevention is underused in LMICs, and there are little data on OAC therapy in relation to stroke risk scores, such as CHA2DS2-VASc. Available data also points to higher morbidity and mortality for patient with AF in LMICs than their counterparts in high-income countries. Data on the consequent economic burden in LMICs is scarce, but it is reasonable to consider it will follow the same trend as that observed for health outcomes. Raising the visibility of AF as a public health problem in LMICs is necessary as a first step to providing adequate care for patients with this condition.
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Affiliation(s)
- Itamar S Santos
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil
- Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Alessandra C Goulart
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil
- Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo D Olmos
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil
- Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - G Neil Thomas
- Institute for Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Gregory Y H Lip
- Institute for Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Liverpool Centre for Cardiovascular Science, Liverpool Heart & Chest Hospital, University of Liverpool, Liverpool, UK
- Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Paulo A Lotufo
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil
- Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
| | - Isabela M Benseñor
- Center for Clinical and Epidemiological Research, Hospital Universitário, Universidade de São Paulo, Av. Lineu Prestes 2565, Cidade Universitária, São Paulo 05508-000, Brazil
- Internal Medicine Deparment, School of Medicine, Universidade de São Paulo, São Paulo, Brazil
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Yuyun MF, Bonny A, Ng GA, Sliwa K, Kengne AP, Chin A, Mocumbi AO, Ngantcha M, Ajijola OA, Bukhman G. A Systematic Review of the Spectrum of Cardiac Arrhythmias in Sub-Saharan Africa. Glob Heart 2020; 15:37. [PMID: 32923331 PMCID: PMC7413135 DOI: 10.5334/gh.808] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 12/15/2022] Open
Abstract
Major structural cardiovascular diseases are associated with cardiac arrhythmias, but their full spectrum remains unknown in sub-Saharan Africa (SSA), which we addressed in this systematic review. Atrial fibrillation/atrial flutter (AF/AFL) prevalence is 16-22% in heart failure, 10-28% in rheumatic heart disease, 3-7% in cardiology admissions, but <1% in the general population. Use of oral anticoagulation is heterogenous (9-79%) across SSA. The epidemiology of sudden cardiac arrest/death is less characterized in SSA. Cardiopulmonary resuscitation is challenging, owing to low awareness and lack of equipment for life-support. About 18% of SSA countries have no cardiac implantable electronic devices services, leaving hundreds of millions of people without any access to treatment for advanced bradyarrhythmias, and implant rates are more than 200-fold lower than in the western world. Management of tachyarrhythmias is largely non-invasive (about 80% AF/AFL via rate-controlled strategy only), as electrophysiological study and catheter ablation centers are almost non-existent in most countries. Highlights - Atrial fibrillation/flutter prevalence is 16-22% in heart failure, 10-28% in rheumatic heart disease, 3-7% in cardiology admissions, and <1% in the general population in sub-Saharan Africa (SSA).- Rates of oral anticoagulation use for CHA2DS2VASC score ≥2 are very diverse (9-79%) across SSA countries.- Data on sudden cardiac arrest are scant in SSA with low cardiopulmonary resuscitation awareness.- Low rates of cardiac implantable electronic devices insertions and rarity of invasive arrhythmia treatment centers are seen in SSA, relative to the high-income countries.
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Affiliation(s)
- Matthew F. Yuyun
- Department of Medicine, Harvard Medical School, Boston, US
- Cardiology and Vascular Medicine Service, VA Boston Healthcare System, Boston, US
| | - Aimé Bonny
- District Hospital Bonassama, Douala/University of Douala, CM
- Homeland Heart Centre, Douala, CM
- Centre Hospitalier Montfermeil, Unité de Rythmologie, Montfermeil, FR
| | - G. André Ng
- National Institute for Health Research Leicester Biomedical Research Centre, Department of Cardiovascular Sciences, University of Leicester, UK
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, ZA
| | - Andre Pascal Kengne
- South African Medical Research Council and Department of Medicine, University of Cape Town, ZA
| | - Ashley Chin
- The Cardiac Clinic, Department of Medicine, Groote Schuur Hospital and University of Cape Town, ZA
| | - Ana Olga Mocumbi
- Instituto Nacional de Saúde and Universidade Eduardo Mondlane, Maputo, MZ
| | | | | | - Gene Bukhman
- Department of Medicine, Harvard Medical School, Boston, US
- Division of Cardiovascular Medicine and Division of Global Health Equity, Brigham and Women’s Hospital, Boston, US
- Program in Global NCDs and Social Change, Department of Global Health and Social Medicine, Harvard Medical School, Boston, US
- NCD Synergies project, Partners In Health, Boston, US
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Noubiap JJ, Nyaga UF. A review of the epidemiology of atrial fibrillation in sub-Saharan Africa. J Cardiovasc Electrophysiol 2019; 30:3006-3016. [PMID: 31596016 DOI: 10.1111/jce.14222] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 01/05/2023]
Abstract
This systematic review summarizes the data on the prevalence, risk factors, complications, and management of atrial fibrillation (AF) in sub-Saharan Africa (SSA). Bibliographic databases were searched from inception to 31 May 2019, to identify all published studies providing data on AF in populations living in SSA. A total of 72 studies were included. The community-based prevalence of AF was 4.3% and 0.7% in individuals aged ≥40 years and aged ≥70 years, respectively. The prevalence of AF ranged between 6.7% and 34.8% in patients with ischemic stroke, between 9.5% and 46.8% in those with rheumatic heart disease (RHD), between 5% and 31.5% in patients with dilated cardiomyopathy. The main risk factors for AF were hypertension, affecting at least one-third of patients with AF, and valvular heart disease (12.3%-44.4%) and cardiomyopathy (~20%). Complications of AF included heart failure in about two thirds and stroke in 10% to 15% of cases. The use of anticoagulation for stroke prevention was suboptimal. Rate control was the most frequent therapeutic strategy, used in approximately 65% to 95% of AF patients, with approximately 80% of them achieving rate control. The management of AF was associated with exorbitant cost. In conclusion, AF seems to have a higher prevalence in the general population than previously thought and is mostly associated with hypertension, cardiomyopathy, and RHD in SSA. It is associated with a high incidence of heart failure and stroke. The management of AF is suboptimal in SSA, especially with a low uptake of oral anticoagulation.
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Affiliation(s)
- Jean Jacques Noubiap
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
| | - Ulrich Flore Nyaga
- Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, Yaoundé, Cameroon
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20
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Jacobs MS, Van Hulst M, Adeoye AM, Tieleman RG, Postma MJ, Owolabi MO. Atrial Fibrillation in Africa—An Under-Reported and Unrecognized Risk
Factor for Stroke: A Systematic Review. Glob Heart 2019; 14:269-279. [DOI: 10.1016/j.gheart.2019.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/17/2019] [Accepted: 04/07/2019] [Indexed: 12/31/2022] Open
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21
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Mapoure YN, Ayeah CM, Ba H, Ngahane HBM, Hentchoya R, Luma HN. The prognostic value of serum uric acid in the acute phase of hemorrhagic stroke patients in black Africans. Pan Afr Med J 2019; 32:165. [PMID: 31303934 PMCID: PMC6607265 DOI: 10.11604/pamj.2019.32.165.15107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 09/04/2018] [Indexed: 12/26/2022] Open
Abstract
Introduction Very few studies have been conducted to evaluate the prevalence of hyperuricemia and its impact on the prognosis amongst acute hemorrhagic stroke (AHS) patients. The objectives was to determine the prevalence of hyperuricemia in AHS patients and examined the association between hyperuricemia and stroke outcomes in the Douala General Hospital (DGH). Methods This was a hospital based prospective cohort which included AHS patients with baseline SUA levels and 3 months post stroke follow-up data. SUA values were divided into quintiles. Associations between hyperuricemia and stroke outcomes were analyzed using multiple logistic regression and survival analysis (cox regression and Kaplan Meier). Results A total of 221 AHS patients were reviewed with a mean age of 55.8±11.8 years. The prevalence of hyperuricemia among AHS patients was 34.4% with mean SUA level of 376.8±131.9 μmol/l. On multivariate analysis, hyperuricemia was not independently associated with early death [(OR = 1.072 (CI: 0.370-3.056; p = 0.897)] and poor functional outcome [(OR=2.487 (CI: 0.771-8.699; p = 0.154)] after hemorrhagic stroke. No significant increase in stroke deaths was observed across higher SUA quintiles amongst hemorrhagic stroke patients (p = 0.326). No statistically significant correlation was observed between SUA level and NIHSS (r = 0.063, p = 0.353) and between SUA level and mRS (r = 0.030, p = 0.662) in hemorrhagic stroke. Conclusion About one third of patients present with hyperuricemia in the acute phase of hemorrhagic stroke. Hyperuricemia can act as risk factor for stroke because of its relationship with CVRFs but hyperuricemia has no impact on the severity and short-term outcome amongst black African hemorrhagic stroke patients.
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Affiliation(s)
- Yacouba Njankouo Mapoure
- Department of Clinical Sciences, University of Douala, Douala, Cameroon.,Department of Internal Medicine, Douala General Hospital, Douala, Cameroon
| | - Chia Mark Ayeah
- Department of Internal Medicine, Douala General Hospital, Douala, Cameroon.,Department of Internal Medicine, Mboppi Baptist Hospital, Douala, Cameroon
| | - Hamadou Ba
- Department of Internal Medicine, University of Yaoundé I, Douala, Cameroon
| | - Hugo Bertrand Mbatchou Ngahane
- Department of Clinical Sciences, University of Douala, Douala, Cameroon.,Department of Internal Medicine, Douala General Hospital, Douala, Cameroon
| | - Romuald Hentchoya
- Service of Intensive Care Unit, Douala General Hospital, Douala, Cameroon
| | - Henry Namme Luma
- Department of Internal Medicine, Douala General Hospital, Douala, Cameroon.,Department of Internal Medicine, Mboppi Baptist Hospital, Douala, Cameroon
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Ezejimofor M, Biu A, Uthman OA. Estimating the uptake of brain imaging and 30-days stroke mortality in Nigeria: A meta-analysis of hospital-based studies. J Neurol Sci 2018; 394:6-13. [PMID: 30196133 DOI: 10.1016/j.jns.2018.08.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/29/2018] [Accepted: 08/22/2018] [Indexed: 01/10/2023]
Abstract
PURPOSE This study aims to estimate the computed tomography (CT) and Magnetic resonance imaging (MRI) uptake, stroke subtypes and 30-days case-fatality in Nigeria. METHODS Stroke diagnosis and mortality data were identified from relevant databases. A random effect meta-analysis was conducted to obtain the pooled percentage uptake of CT/MRI, including 30-days case fatality and a meta-regression-like epidemiological model was applied on all data points. FINDINGS A total of 24 studies involving 5874 stroke patients conducted in predominantly tertiary referral hospitals met the inclusion criteria. The pooled CT/MRI uptake in the last seven years was 46.66% (95% CI = 15.35 to 77.98, 8 studies). There were significant variations in the prevalence of stroke subtypes. The pooled prevalence ischemic stroke was highest (55.32%, 95% CI 48.67 to 61.97, 16 studies), followed by intracerebral haemorrhage (ICH) (32.69%, 95% CI 25.54 to 39.83, 16 studies), subarachnoid haemorrhage (SAH) (3.76%, 95% CI 2.30 to 5.22, 14 studies). In addition, the stroke of undetermined aetiology was found to be 16.57% (95% CI, 7.44-25.70, 8 studies). Overall, the 24-h, one-week and 30-days case-fatality from stroke were 10.84% (95% CI, 4.48-17.20), 24.62% (95% CI, 17.20-32.04) and 33.28% (95% CI, 27.80-38.77), respectively. There was a moderate negative correlation between prevalence of brain imaging uptake and ischaemic stroke, albeit not statistically significant (Spearman rho = 0.333, p-value = .412). CONCLUSION Uptake of CT/MRI procedure for stroke is poor in Nigeria. Although poverty, inaccessibility and influence of major risk factors remain pronounced, scaling up of effective strategies for stroke prevention and management should be a major public health policy priority in Nigeria.
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Affiliation(s)
- Martinsixtus Ezejimofor
- Division of Health Sciences, University of Warwick Medical School, Coventry, UK; British Association of Dermatologist, Willan House, Fitzroy Square, London W1T 5HQ, UK.
| | - Amabetare Biu
- Community Children's Health Partnership (CCHP), Sirona Care and Health, Southmead, Bristol, UK
| | - Olalekan A Uthman
- Division of Health Sciences, University of Warwick Medical School, Coventry, UK
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Long-Term Outcomes of Stroke in a Ghanaian Outpatient Clinic. J Stroke Cerebrovasc Dis 2017; 27:1090-1099. [PMID: 29275059 DOI: 10.1016/j.jstrokecerebrovasdis.2017.11.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 11/11/2017] [Accepted: 11/16/2017] [Indexed: 12/17/2022] Open
Abstract
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. METHODS We conducted a retrospective analysis of longitudinal data involving 607 consecutive stroke survivor encountered at an outpatient clinic in Kumasi, Ghana, between January 2012 and June 2014. Data were closed for analysis in June 2016. Data on demography, presence of vascular risk factors, stroke type, and functional status were evaluated. We followed up subjects who were no longer attending clinic by phone to assess their vital status. Primary outcome was death after initiation of clinic care, and its predictors were determined using a Cox proportional hazards regression model. RESULTS Mean ± standard deviation (SD) age of cohort was 59.9 ± 13.9 years and 50.3% were female. Of the 607 stroke survivors, 377 (62.1%) were still alive, 59 (9.7%) were confirmed to have died, whereas 171 (28.2%) were lost to follow-up at the clinic. Mean ± SD observation time for the cohort was 32 ± 30 months. Upon adjustment for confounders, the independent predictors of mortality were age (adjusted hazard ratio [aHR] of 1.41 [95% confidence interval 1.15-1.73] for a 10-year increase in age) and diabetes mellitus (aHR of 2.24 [1.32-3.80]). CONCLUSIONS Diabetes mellitus, a modifiable risk factor for stroke, is associated with an increased risk of mortality among West African stroke survivors over the long term.
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Somotun OAA, Osungbade KO, Akinyemi OO, Obembe TA, Adeniji FI. What factors influence the average length of stay among stroke patients in a Nigerian tertiary hospital? Pan Afr Med J 2017; 26:228. [PMID: 28690742 PMCID: PMC5491721 DOI: 10.11604/pamj.2017.26.228.12249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 03/26/2017] [Indexed: 11/24/2022] Open
Abstract
Introduction Increased emphasis is being laid on ensuring that health resources are efficiently utilized, especially in resource-constrained settings such as in Nigeria. One of the main indices of how efficiently a health institution is being run is Length of Stay (LOS), which is likely to be higher in chronic diseases such as stroke and diabetes. Stroke is a chronic disease that is currently on the rise in Low and Middle income countries (LMICs) who are also characterized by constraint of health resources. This study seeks to determine the LOS of stroke patients as well as factors that affect it. Methods A retrospective analysis of health records of stroke victims admitted into the medical wards of the University College Hospital, Ibadan between January 2012 and December 2014 was conducted. Data on sociodemographic information, comorbidities and risk factors were extracted while LOS was calculated by counting the number of days the patient was admitted. Analysis was carried to using SPSS. Results A total of 143 records were used in the final analysis with 53.1% of them being males and having a mean age of 61.5 ± 14.2 years. More than half (53.8%) of the cases were ischemic strokes. The average length of stay was 13.7 ± 8.9 days while bivariate analysis showed that a greater proportion of cases who consumed alcohol, had diabetes and hypertension had LOS of over 7 days than those who did not. However, these differences in proportions were not statistically significant (0.310<p<0.883). Conclusion LOS of stroke patients in Nigeria was shown to be prolonged especially when compared to similar settings in West Africa. The high prevalence of some of the risk factors of stroke such as diabetes mellitus indicates that policy and advocacy to drive changes in lifestyle are necessary to reduce the incidence of stroke and its consequent burden on health systems.
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Affiliation(s)
| | - Kayode Omoniyi Osungbade
- Department of Health Policy and Management, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Taiwo Akinyode Obembe
- Department of Health Policy and Management, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Folashayo Ikenna Adeniji
- Department of Health Policy and Management, College of Medicine, University of Ibadan, Ibadan, Nigeria
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25
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Okeng'o K, Chillo P, Gray WK, Walker RW, Matuja W. Early Mortality and Associated Factors among Patients with Stroke Admitted to a Large Teaching Hospital in Tanzania. J Stroke Cerebrovasc Dis 2016; 26:871-878. [PMID: 27913201 DOI: 10.1016/j.jstrokecerebrovasdis.2016.10.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/17/2016] [Accepted: 10/28/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Stroke is a major cause of death worldwide and 85.5% of stroke deaths occur in low- and middle-income countries due to stroke. The aim of this study was to investigate correlates and predictors of 30-day mortality in stroke patients in urban Tanzania. METHODS A prospective 30-day follow-up study was conducted at the Muhimbili National Hospital, Dar es Salaam, Tanzania. We recruited all patients with stroke seen at the Emergency Medicine Department and medical wards. Patients underwent medical history and physical examination including full neurological examination. For those who met the criteria for the diagnosis of stroke according to the World Health Organization, further data were collected, including cholesterol, creatinine, fasting blood glucose, full blood picture, human immunodeficiency virus serology, and electrocardiogram. Patients were followed up at 30 days from the date of stroke onset. The date and the cause of death of those participants who died within 30 days of stroke onset were recorded. RESULTS A total of 224 patients were recruited into the study, with follow-up data available on 186 (83.0%). At 30 days post stroke, 124 patients (66.7%) were still alive. Mortality was significantly higher among stroke patients who were over 65 years of age. Of the 62 who died, 54% died of aspiration pneumonia and 21% of septicemia. Patients with infection were 4.4 times more likely to die than thosewithout (P = .001). CONCLUSIONS Poststroke mortality rates were high. Many deaths were potentially preventable.
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Affiliation(s)
- Kigocha Okeng'o
- Internal Medicine Department, Muhimbili National Hospital, Dar es Salaam, Tanzania.
| | - Pilly Chillo
- Internal Medicine Department, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - William K Gray
- Northumbria Healthcare NHS Foundation Trust, Department of Medicine, North Tyneside General Hospital, North Shields, United Kingdom
| | - Richard W Walker
- Northumbria Healthcare NHS Foundation Trust, Department of Medicine, North Tyneside General Hospital, North Shields, United Kingdom; Institute of Health and Society, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - William Matuja
- Internal Medicine Department, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
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26
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Alkali NH, Bwala SA, Dunga JA, Watila MM, Jibrin YB, Tahir A. Prestroke treatment of stroke risk factors: A cross-sectional survey in central Nigeria. Ann Afr Med 2016; 15:120-5. [PMID: 27549416 PMCID: PMC5402807 DOI: 10.4103/1596-3519.188891] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background: Stroke can be prevented with treatments targeted at hypertension, diabetes mellitus, hyperlipidemia and atrial fibrillation, but this is often hampered by under-diagnosis and under-treatment of those risk factors. The magnitude of this problem is not well-studied in sub-Saharan Africa. Materials and Methods: We conducted a cross-sectional survey of stroke patients at a tertiary hospital during January 2010 to July 2013 to determine patient awareness of a pre-existing stroke risk factor and prior use of anti-hypertensive, anti-diabetic, antiplatelet and lipid-lowering agents. We also investigated whether gender and school education influenced patient awareness and treatment of a stroke risk factor prior to stroke. Results: Three hundred and sixty nine stroke patients presented during the study period, of which 344 eligible subjects were studied. Mean age at presentation (±SD) was 55.8 ± 13.7 years, and was not different for men and women. Hypertension, hyperlipidemia, diabetes and atrial fibrillation were prevalent among 83.7%, 26.5%, 25.6% and 9.6% patients respectively. Awareness was high for pre-existing diabetes (81.8%) and hypertension (76.7%), but not for hyperlipidemia (26.4%) and atrial fibrillation (15.2%). Men were better educated than women (p = 0.002), and had better awareness for hyperlipidemia (37.3% versus 13.5%; p = 0.009). Men were also more likely to take drug treatments for a stroke risk factor, but the differences were significant. Conclusions: A high rate of under-diagnosis and under-treatment of hypertension, hyperlipidemia and atrial fibrillation contributes to the stroke burden in sub-Saharan Africa, especially among women. Public health measures including mass media campaigns could help reduce the burden of stroke.
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Affiliation(s)
- Nura H Alkali
- Department of Medicine, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | - Sunday A Bwala
- Department of Medicine, National Hospital Abuja, Abuja, Nigeria
| | - Jacob A Dunga
- Department of Medicine, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | - Musa M Watila
- Department of Medicine, University of Maiduguri Teaching Hospital, Maiduguri, Nigeria
| | - Yusuf B Jibrin
- Department of Medicine, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | - Abdulrahman Tahir
- Department of Medicine, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
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Rosendaal NTA, Hendriks ME, Verhagen MD, Bolarinwa OA, Sanya EO, Kolo PM, Adenusi P, Agbede K, van Eck D, Tan SS, Akande TM, Redekop W, Schultsz C, Gomez GB. Costs and Cost-Effectiveness of Hypertension Screening and Treatment in Adults with Hypertension in Rural Nigeria in the Context of a Health Insurance Program. PLoS One 2016; 11:e0157925. [PMID: 27348310 PMCID: PMC4922631 DOI: 10.1371/journal.pone.0157925] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 06/07/2016] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND High blood pressure is a leading risk factor for death and disability in sub-Saharan Africa (SSA). We evaluated the costs and cost-effectiveness of hypertension care provided within the Kwara State Health Insurance (KSHI) program in rural Nigeria. METHODS A Markov model was developed to assess the costs and cost-effectiveness of population-level hypertension screening and subsequent antihypertensive treatment for the population at-risk of cardiovascular disease (CVD) within the KSHI program. The primary outcome was the incremental cost per disability-adjusted life year (DALY) averted in the KSHI scenario compared to no access to hypertension care. We used setting-specific and empirically-collected data to inform the model. We defined two strategies to assess eligibility for antihypertensive treatment based on 1) presence of hypertension grade 1 and 10-year CVD risk of >20%, or grade 2 hypertension irrespective of 10-year CVD risk (hypertension and risk based strategy) and 2) presence of hypertension in combination with a CVD risk of >20% (risk based strategy). We generated 95% confidence intervals around the primary outcome through probabilistic sensitivity analysis. We conducted one-way sensitivity analyses across key model parameters and assessed the sensitivity of our results to the performance of the reference scenario. RESULTS Screening and treatment for hypertension was potentially cost-effective but the results were sensitive to changes in underlying assumptions with a wide range of uncertainty. The incremental cost-effectiveness ratio for the first and second strategy respectively ranged from US$ 1,406 to US$ 7,815 and US$ 732 to US$ 2,959 per DALY averted, depending on the assumptions on risk reduction after treatment and compared to no access to antihypertensive treatment. CONCLUSIONS Hypertension care within a subsidized private health insurance program may be cost-effective in rural Nigeria and public-private partnerships such as the KSHI program may provide opportunities to finance CVD prevention care in SSA.
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Affiliation(s)
- Nicole T. A. Rosendaal
- Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Global Health and Development, Pietersbergweg 17, Amsterdam, 1105 BM, The Netherlands
- Office of Public Health Studies, University of Hawaii, John A. Burns School of Medicine, 1960 East-West Road, Honolulu, HI, United States of America
| | - Marleen E. Hendriks
- Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Global Health and Development, Pietersbergweg 17, Amsterdam, 1105 BM, The Netherlands
| | - Mark D. Verhagen
- Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Global Health and Development, Pietersbergweg 17, Amsterdam, 1105 BM, The Netherlands
| | - Oladimeji A. Bolarinwa
- Department of Epidemiology and Community Health, University of Ilorin Teaching Hospital, P.M.B. 1459, Ilorin, postal code 240001, Nigeria
| | - Emmanuel O. Sanya
- Department of Medicine, University of Ilorin Teaching Hospital, P.M.B. 1459, Ilorin, postal code 240001, Nigeria
| | - Philip M. Kolo
- Department of Medicine, University of Ilorin Teaching Hospital, P.M.B. 1459, Ilorin, postal code 240001, Nigeria
| | - Peju Adenusi
- Hygeia Nigeria Ltd, 13B Idejo Street, Victoria Island, Lagos, Nigeria
| | | | | | - Siok Swan Tan
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - Tanimola M. Akande
- Department of Epidemiology and Community Health, University of Ilorin Teaching Hospital, P.M.B. 1459, Ilorin, postal code 240001, Nigeria
| | - William Redekop
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - Constance Schultsz
- Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Global Health and Development, Pietersbergweg 17, Amsterdam, 1105 BM, The Netherlands
| | - Gabriela B. Gomez
- Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Global Health and Development, Pietersbergweg 17, Amsterdam, 1105 BM, The Netherlands
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Arulogun OS, Hurst S, Owolabi MO, Akinyemi RO, Uvere E, Saulson R, Ovbiagele B. Experience of Using an Interdisciplinary Task Force to Develop a Culturally Sensitive Multipronged Tool to Improve Stroke Outcomes in Nigeria. eNeurologicalSci 2016; 4:10-14. [PMID: 27331144 PMCID: PMC4908828 DOI: 10.1016/j.ensci.2016.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The burden of stroke is on the rise in Nigeria. A multi-faceted strategy is essential for reducing this growing burden and includes promoting medication adherence, optimizing traditional biomarker risk targets (blood pressure, cholesterol) and encouraging beneficial lifestyle practices. Successful implementation of this strategy is challenged by inadequate patient health literacy, limited patient/medical system resources, and lack of a coordinated interdisciplinary treatment approach. Moreover, the few interventions developed to improve medical care in Nigeria have generally been aimed at physicians (primarily) and nurses (secondarily) with minimal input from other key health care providers, and limited contributions from patients, caregivers, and the community itself. The Tailored Hospital-based Risk Reduction to Impede Vascular Events after Stroke (THRIVES) study is assessing the efficacy of a culturally sensitive multidimensional intervention for controlling blood pressure in recent stroke survivors. A key component of the intervention development process was the constitution of a project task force comprising various healthcare providers and administrators. This paper describes the unique experience in Sub-Saharan Africa of utilizing of an interdisciplinary Task force to facilitate the development of the multipronged behavioral intervention aimed at enhancing stroke outcomes in a low-middle income country. Involvement of Task force bridges gap between the research and the beneficiaries Task force strategy improves utilization/dissemination of research interventions. Effective and efficient management of stroke patients is enhanced.
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Affiliation(s)
| | - Samantha Hurst
- Department of Family and Preventive Medicine, University of California, San Diego, California
| | | | - Rufus O Akinyemi
- Department of Medicine, Federal Medical Center, Abeokuta, Nigeria; Institute of Advanced Medical Research and Training, University of Ibadan, Nigeria
| | - Ezinne Uvere
- Department of Medicine, University of Ibadan, Nigeria
| | - Raelle Saulson
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina
| | - Bruce Ovbiagele
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina
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Gebremariam SA, Yang HS. Types, risk profiles, and outcomes of stroke patients in a tertiary teaching hospital in northern Ethiopia. eNeurologicalSci 2016; 3:41-47. [PMID: 29430535 PMCID: PMC5803092 DOI: 10.1016/j.ensci.2016.02.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/20/2016] [Accepted: 02/25/2016] [Indexed: 11/25/2022] Open
Abstract
Background Stroke is becoming an increasingly serious public health issue in Ethiopia and the paucity of data specific to the Ethiopian setting is limiting the formulation of an appropriate response. Objective This study aimed to describe types, risk factors, management patterns, and outcomes among stroke patients treated at a tertiary teaching hospital in northern Ethiopia from 2012 to 2014. Design Medical record review with a standardized abstraction tool was used to obtain all data for this retrospective case study. Data was entered in EpiInfo Version 7 and analyzed using STATA12. Descriptive statistics were used to explore differences among stroke subtypes and compare with other sub-Saharan African countries. Results Among 142 stroke patients (mean age 62.8 ± 15.6 years, 54.2% male), ischemic stroke was the most frequent subtype (55.6%) followed by intracerebral hemorrhage (32.4%) and subarachnoid hemorrhage (5.6%). 38.0% of patients had pre-existing hypertension and 4.9% had pre-existing diabetes, and most were not on any treatment. 66.2% of patients were hypertensive at hospital arrival and nearly all presented with focal neurological deficit. Less than 10% arrived at the hospital within 3 h of stroke; nearly half (47.9%) were delayed over 24 h. 76.1% received CT Scan. We observed 12.0% in-hospital mortality. Conclusions Ischemic stroke was the predominant form of stroke, although to a lesser degree than in studies from developed countries. Under-diagnosing of hypertension and other risk factors and delayed presentation at the hospital are the major challenges to address. Low ischemic to hemorrhagic stroke ratio compared with developed countries Hypertension and other stroke risk factors were under-identified and under-treated. Less than 10% of patients reached the hospital within 3 h of stroke symptoms. Financial and social barriers to accessing CT Scan affected quality of stroke care.
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Affiliation(s)
- Sennay A. Gebremariam
- Department of Internal Medicine, Mekelle University, College of Health Sciences, PO Box 1871, Mekelle, Tigray, Ethiopia
| | - Hannah S. Yang
- Department of Public Health, Mekelle University, College of Health Sciences, PO Box 1871, Mekelle, Tigray, Ethiopia
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD 21205, United States
- Corresponding author at: PO Box 402, Mekelle, Tigray, Ethiopia.PO Box 402MekelleTigrayEthiopia
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30
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Oni OD, Aina OF, Ojini FI, Olisah VO. Quality of life and associated factors among poststroke clinic attendees at a University Teaching Hospital in Nigeria. Niger Med J 2016; 57:290-298. [PMID: 27833249 PMCID: PMC5036301 DOI: 10.4103/0300-1652.190602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Quality of life (QOL) measures are effective in quantifying disease burden after stroke, more so than levels of debility. The objective of this study is to determine QOL and associated factors of stroke survivors in Lagos, Nigeria. MATERIALS AND METHODS Seventy stroke survivors (study sample) and seventy stable hypertensive patients (control sample) attending clinics at a Nigerian hospital were recruited for the study. Respondents were assessed using sociodemographic/clinical questionnaires, modified mini-mental state examination, modified Rankin Scale, schedule for clinical assessment in neuropsychiatry, and World Health Organization-QOL-BREF. RESULTS Mean ages of the study and control respondents were 57.43 (±9.67) years and 57.33 (±9.33) years, respectively. Each sample comprised 38 male and 32 female respondents. Stroke survivors were significantly more likely to: be unemployed (P = 0.001), pay more for healthcare (P = 0.001), consume alcohol (P = 0.02), and have physical impairments (P = 0.001) compared with control. The mean QOL scores of stroke survivors were significantly lower than controls across all spheres. Stroke survivors who were unemployed, younger, female, paying more for healthcare, more disabled, with right stroke lateralization, having comorbidities, and sexual dysfunction had significantly poorer QOL specific grades. Depression or anxiety poststroke was also associated with reduced QOL means scores. CONCLUSION Besides, clinical variables such as levels of disability and stroke lesion lateralization, other factors such as unemployment, health costs, age, gender, and emotional problems influenced QOL after stroke.
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Affiliation(s)
| | - Olatunji F Aina
- Department of Psychiatry, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Francis I Ojini
- Department of Medicine, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Victor O Olisah
- Department of Psychiatry, Ahmadu Bello University Teaching Hospital, Zaria, Kaduna State, Nigeria
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Walker RW, Wakefield K, Gray WK, Jusabani A, Swai M, Mugusi F. Case-fatality and disability in the Tanzanian Stroke Incidence Project cohort. Acta Neurol Scand 2016; 133:49-54. [PMID: 25939728 PMCID: PMC4737228 DOI: 10.1111/ane.12422] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2015] [Indexed: 11/28/2022]
Abstract
Objectives The burden of stroke on healthcare services in sub‐Saharan Africa (SSA) is increasing. However, long‐term outcomes from stroke in SSA are not well described. We aimed to investigate case‐fatality and health outcomes for stroke survivors at 7‐ to 10‐year follow‐up. Materials and methods The Tanzanian Stroke Incidence Project (TSIP) recruited incidence stroke cases between 2003 and 2006. We followed up cases in 2013, recording date of death in those who had died. Results Of 130 stroke cases included in this study, case‐fatality and date of death data were available for 124 at 7–10 years post‐stroke. Of these, 102 (82.3%) had died by 7 years post‐stroke. Functional disability, as measured by the Barthel index immediately post‐stroke, was a significant predictor of case‐fatality at seven‐year follow‐up with those with severe disability having an almost four‐fold increase in the odds of death compared with those with no, mild or moderate disability. Conclusions Case‐fatality rates are higher than reported in high‐income countries, with post‐stroke disability a significant predictor of death. Sustainable interventions to reduce post‐stroke disability in this setting should be investigated.
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Affiliation(s)
- R. W. Walker
- Northumbria Healthcare NHS Foundation Trust North Tyneside General Hospital North Shields Tyne and Wear UK
- Institute of Health and Society Newcastle University, Newcastle‐upon‐Tyne UK
| | - K. Wakefield
- Northumbria Healthcare NHS Foundation Trust North Tyneside General Hospital North Shields Tyne and Wear UK
| | - W. K. Gray
- Northumbria Healthcare NHS Foundation Trust North Tyneside General Hospital North Shields Tyne and Wear UK
| | - A. Jusabani
- Kilimanjaro Christian Medical Centre Moshi Tanzania
| | - M. Swai
- Kilimanjaro Christian Medical Centre Moshi Tanzania
| | - F. Mugusi
- Department of Medicine Muhimbili University College Hospital Dar‐es‐Salaam Tanzania
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Deresse B, Shaweno D. Epidemiology and in-hospital outcome of stroke in South Ethiopia. J Neurol Sci 2015; 355:138-42. [PMID: 26059446 DOI: 10.1016/j.jns.2015.06.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 05/05/2015] [Accepted: 06/01/2015] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Although the burden of stroke in Sub-Saharan Africa, including Ethiopia, is increasing, there are few available data on stroke in Ethiopia. OBJECTIVE To describe the magnitude of risk factors, sub-types and in-hospital outcome of stroke at Hawassa University Referral Hospital, Ethiopia. METHODS A prospective hospital-based study was conducted with all adult patients admitted to Hawassa University Referral Hospital with stroke diagnosis between May 2013 and April 2014. Computerized tomography scan was performed in all patients to confirm the type of stroke. Stroke severity at admission was assessed by the National Institute of Health Stroke Scale. Stroke outcome at discharge was measured using the modified Rankin stroke scale. RESULTS A total of 163 stroke patients were recruited during the study period, of which 82 (50.3%) patients had ischemic stroke while 81 (49.7%) had hemorrhagic stroke. Stroke risk factors included hypertension (50.9%), cardiac diseases (16.6%), diabetes mellitus (7.4%), alcohol (10.4%), cigarette smoking (4.9%) and tuberculous meningitis (3.1%). In-hospital stroke mortality was 14.7%. The main predictors of in-hospital stroke mortality were stroke severity at admission, hemorrhagic stroke, decreased level of consciousness and seizure. CONCLUSION The proportion of hemorrhagic stroke is higher than in Western countries. Hypertension is the most common risk factor for stroke. More than half of the patients were discharged with severe disability. We recommend establishing stroke units in resource limited countries like Ethiopia in order to reduce stroke mortality and post stroke disability.
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Affiliation(s)
- Birrie Deresse
- Neurology Unit, Department of Internal Medicine, School of Medicine, College of Medicine and Health Sciences, Hawassa University, Hawassa, Ethiopia.
| | - Debebe Shaweno
- School of Public and Environmental Health, College of Medicine and Health Sciences, Hawassa University, Hawassa, Ethiopia
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Abstract
Atrial fibrillation (AF) is a major public health burden worldwide, and its prevalence is set to increase owing to widespread population ageing, especially in rapidly developing countries such as Brazil, China, India, and Indonesia. Despite the availability of epidemiological data on the prevalence of AF in North America and Western Europe, corresponding data are limited in Africa, Asia, and South America. Moreover, other observations suggest that the prevalence of AF might be underestimated-not only in low-income and middle-income countries, but also in their high-income counterparts. Future studies are required to provide precise estimations of the global AF burden, identify important risk factors in various regions worldwide, and take into consideration regional and ethnic variations in AF. Furthermore, in response to the increasing prevalence of AF, additional resources will need to be allocated globally for prevention and treatment of AF and its associated complications. In this Review, we discuss the available data on the global prevalence, risk factors, management, financial costs, and clinical burden of AF, and highlight the current worldwide inadequacy of its treatment.
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Agunloye AM, Owolabi MO. Exploring carotid sonographic parameters associated with stroke risk among hypertensive stroke patients compared to hypertensive controls. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2014; 33:975-983. [PMID: 24866604 DOI: 10.7863/ultra.33.6.975] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES Globally, and particularly in low- and middle-income countries, the prevalence of hypertension is increasing with a consequent rise in the burden of stroke. There is a need to identify biomarkers of stroke, which can be used to design stroke prevention programs in these populations. Sonography is an affordable and widely available imaging modality that is ideal for resource-poor countries. We conducted a case-control study to identify carotid sonographic parameters that may be associated with stroke risk among hypertensive patients. METHODS Selected demographic, clinical, and laboratory characteristics were collected from 135 consecutive African hypertensive stroke patients and compared with 117 age and sex-matched hypertensive patients with no clinical evidence of stroke, transient ischemic attacks, or ischemic heart disease (controls). The luminal diameter, intima-media thickness, peak systolic velocity (PSV), and end-diastolic velocity (EDV) of the common and internal carotid arteries were measured in all participants, and other carotid parameters, including pulsatility and resistive indices, were derived. Univariate, bivariate, and multivariate analyses were performed RESULTS Among hypertensive patients, carotid parameters significantly (P < .05) associated with stroke included a higher diameter and intima-media thickness as well as a lower PSV and EDV in the common carotid and proximal internal carotid arteries. However, the diameter (>6.3 mm; adjusted odds ratio [OR], 8.91; 95% confidence interval [CI], 2.18-36.34; P = .002) and EDV (>21 cm/s; adjusted OR, 0.15; 95% CI, 0.03-0.71; P = .017) of the common carotid artery were the only parameters associated with stroke in multivariate analysis. CONCLUSIONS Among hypertensive patients, the common carotid artery diameter and EDV are significantly associated with stroke risk. These findings have implications for development and evaluation of stroke prevention programs.
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Affiliation(s)
- Atinuke M Agunloye
- Departments of Radiology (A.M.A.) and Medicine (M.O.O.), College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Mayowa O Owolabi
- Departments of Radiology (A.M.A.) and Medicine (M.O.O.), College of Medicine, University of Ibadan, Ibadan, Nigeria
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Bista D, Chalmers L, Bereznicki L, Peterson G. Potential use of NOACs in developing countries: pros and cons. Eur J Clin Pharmacol 2014; 70:817-28. [PMID: 24817486 DOI: 10.1007/s00228-014-1693-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/25/2014] [Indexed: 01/09/2023]
Abstract
PURPOSE Although vitamin K antagonists (VKAs) are effective for long-term thromboprophylaxis in atrial fibrillation (AF), their limitations have led to widespread underutilisation, especially in the developing world. Novel oral anticoagulants (NOACs) have emerged as promising alternatives to VKAs, although there are some particular considerations and challenges to their introduction in developing countries. This review summarises the current state of antithrombotic management of AF in the developing world, explores the early evidence for the NOACs and describes some of the special considerations that must be taken into account when considering the role of the NOACs within developing countries' health care systems. METHODS A literature search was conducted via PubMed and Google Scholar to find articles published in English between the years 2000 to 2014. Search terms used were "atrial fibrillation", "oral anticoagulants", "warfarin", "NOACs", "dabigatran", "rivaroxaban", "apixaban", "edoxaban", "time in therapeutic range", "International Normalized Ratio" "cost-effectiveness", "stroke", "adverse-drug reactions" and "drug-drug interactions", together with the individual names of developing countries as listed by the World Bank. We reviewed the results of randomized clinical trials, relevant retrospective and prospective studies, case-studies and review articles. RESULTS Many developing countries lack or have sporadic data on the quality of AF management, making it difficult to anticipate the potential impact of NOACs in these settings. The utilisation of anticoagulants for AF appears highly variable in developing countries. Given the issues associated with VKA therapy in many developing countries, NOACs offer some potential advantages; however, there is insufficient evidence to advocate the widespread replacement of warfarin at present. VKAs may continue to have a role in selected patients or countries, especially if alternative monitoring strategies can be utilised. CONCLUSION The evaluation of the introduction of NOACs should consider safety, budget concerns and the quality of oral anticoagulation care achieved by each country. Prospective registries will be important in developing countries to better elucidate the comparative safety, efficacy and cost-effectiveness of NOACs and VKAs as NOACs are introduced into practice.
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Affiliation(s)
- Durga Bista
- Pharmacy, School of Medicine, University of Tasmania, Hobart, Australia,
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Okokhere PO, Bankole IA, Erohubie CA. Characteristics, risk factors and case fatality rate of stroke in hospitalized patients in semi-urban South-South Nigeria. SAGE Open Med 2013; 1:2050312113516112. [PMID: 26770696 PMCID: PMC4687779 DOI: 10.1177/2050312113516112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 11/08/2013] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Stroke causes death and disability worldwide. Hypertension is the most prevalent risk factor. In Nigeria, studies on outcome and risk factors of stroke are from urban-based hospitals. This study aims to look at stroke outcome and the major modifiable risk factors of hospitalized stroke patients in semi-urban Nigeria. METHODS The medical records of stroke patients admitted between March 2008 and February 2010 were reviewed retrospectively. The relevant demographic, clinical and laboratory data of each patient were retrieved. RESULTS A total of 99 cases of stroke made up of 51 males and 48 females were reviewed. Mean age of the subjects was 66.22 ± 12.67 years. Mean systolic blood pressure and diastolic blood pressure at presentation were 171.41 ± 39.10 mmHg and 100.44 ± 21 mmHg, respectively. About 61.6% were known hypertensives, while 31.3%, not previously known to be hypertensive, had SBP ≥ 140 mmHg and/or diastolic blood pressure ≥ 90 mmHg. Overall, 85.9% of the subjects had SBP ≥ 140 mmHg and/or DBP ≥ 90 mmHg. In all, 46.5% had SBP ≥ 180 mmHg, and 63% of this number had SBP ≥ 200 mmHg; 42.4% had DBP ≥ 110 mmHg. Other major risk factors were hypercholesterolaemia (34.4%), diabetes mellitus (16.6%), previous cerebrovascular accident (15.2%) and smoking (9.4%). In all, 31.3% had two or more modifiable stroke risk factors. 36.4% of the subjects were comatose. Overall case fatality rate was 45.8%, 75% of the subjects with coma died, compared to 27.6% without coma (p < 0.01). CONCLUSION Mortality in our stroke patients is high. Hypertension is the commonest modifiable risk factor, and the presence of coma at presentation is associated with poor prognosis.
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Affiliation(s)
- Peter O Okokhere
- Department of Medicine, Irrua Specialist Teaching Hospital, Irrua, Nigeria
| | - Idowu A Bankole
- Department of Medicine, Irrua Specialist Teaching Hospital, Irrua, Nigeria
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