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Sadiq E, Woodiwiss A, Tade G, Norton G, Modi G. Lack of impact of HIV status on carotid intima media thickness in a cohort of stroke patients in South Africa. J Neurol Sci 2024; 465:123186. [PMID: 39167958 DOI: 10.1016/j.jns.2024.123186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/12/2024] [Accepted: 08/13/2024] [Indexed: 08/23/2024]
Abstract
INTRODUCTION People living with HIV (PLWH) are at increased risk for cardiovascular disease. Carotid intima media thickness (cIMT) is a validated surrogate marker of atherosclerosis, and an accurate predictor of future cardiovascular events. It is uncertain whether HIV potentiates stroke risk through atherosclerosis in Sub-Saharan Africa and what effect HIV status has on cIMT. We sought to investigate the relationship between HIV status and cIMT in stroke patients in a region that is burdened with dual epidemics of HIV and stroke in the young. METHODS Consecutive patients with new onset ischaemic stroke were recruited from a quaternary-level hospital in Johannesburg, South Africa, from August 2014 to November 2017. Patients were assessed for the presence of traditional cardiovascular risk factors and HIV infection, and investigated for stroke aetiology. cIMT was measured using high resolution B-mode ultrasound following standardized techniques. RESULTS 168 patients were included in the study, of which 62 (36.9%) were PLWH. Mean cIMT was higher in HIV-uninfected patients when compared to PLWH (0.79 ± 0.19 mm vs 0.69 ± 0.18 mm, p = 0.0021). However after adjusting for age, sex, hypertension, diabetes mellitus, smoking, total cholesterol, body mass index and stroke aetiology, there was no difference in mean cIMT between the groups (0.76 ± 0.16 mm vs 0.73 ± 0.17 mm, p = 0.29). Regression models revealed the determinants of cIMT to be age (p < 0.0001), hypertension (p = 0.0098) and total cholesterol (p = 0.005), while the determinants of increased cIMT (≥0.70 mm) were only age (p < 0.0001) and hypertension (p = 0.0002). CONCLUSION HIV status had no effect on cIMT in our cohort of stroke patients. The main determinants of cIMT were age and hypertension.
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Affiliation(s)
- Eitzaz Sadiq
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Angela Woodiwiss
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Grace Tade
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Gavin Norton
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Girish Modi
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
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Mtambo ML, Masangwi DD, Soko AO, Kaledzera T, Bickton FM, Chipeta MC. The State of Stroke Research in Malawi: Results from a Mapping Review Study. J Multidiscip Healthc 2024; 17:4023-4041. [PMID: 39175495 PMCID: PMC11339346 DOI: 10.2147/jmdh.s476012] [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: 06/06/2024] [Accepted: 07/30/2024] [Indexed: 08/24/2024] Open
Abstract
Introduction Stroke is one of the leading causes of death and disability globally, and low-income countries such as Malawi bear a heavy burden. Tailored, high-quality research is essential for bridging existing gaps and improving the healthcare provided in low-resource settings while maximizing available resources. Aim This mapping study aimed to synthesize the current state of stroke research in Malawi. Methods Six databases were thoroughly searched: CINAHL complete, Ovid MEDLINE and EMBASE, Web of Science Core Collection, PubMed, and Google Scholar. Results The search retrieved 598 references and identified 20 studies published between 2005 and 2023. Of these, 70% were conducted at Queen Elizabeth Central Hospital only; open-access journals published 95% of the studies. Cross-sectional studies were the most common (50%), followed by case-control studies (20%). The Malawi-Liverpool-Wellcome Trust Clinical Research Program authors contributed the most articles as main authors (25%). The number of citations per article ranged from 0 to 168 on Google Scholar, and the number of authors per article ranged from 1 to 15. Authors from thirty-five different institutions from 11 other countries partnered with Malawi on stroke articles, and England contributed 45.7% of the institutions. Most articles focused on pathophysiology (30%), followed by diagnosis (20%) and stroke management (15%). The highest number of participants included in the analysis was 739 and the highest number of stroke participants was 222. The identified challenges included the need for more infrastructure and under-utilization of available services. The Wellcome Trust has emerged as the primary funding agency for stroke research in Malawi. Conclusion The study found limited collaboration among local institutions in Malawi, with most research focused in Blantyre District. There is a critical need for increased interdisciplinary teamwork to boost nationwide research.
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Affiliation(s)
- Memory Lucy Mtambo
- Department of Clinical Sciences, Malawi University of Science and Technology, Blantyre, Malawi
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Kuala Lumpur, Selangor, Malaysia
| | - Didjier Danger Masangwi
- Department of Applied Sciences, Malawi University of Science and Technology, Blantyre, Malawi
| | - Alpha Omega Soko
- Department of Basic Sciences, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - Thom Kaledzera
- Department of Rehabilitation Sciences, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Fanuel Meckson Bickton
- Department of Rehabilitation Sciences, Kamuzu University of Health Sciences, Blantyre, Malawi
- Lung Health Research Group, Malawi-Liverpool-Wellcome Programme, Blantyre, Malawi
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Sadiq E, Woodiwiss A, Norton G, Modi G. Cardioembolic stroke in an HIV endemic region: underdiagnosed and severe. BMJ Neurol Open 2024; 6:e000592. [PMID: 39104634 PMCID: PMC11298736 DOI: 10.1136/bmjno-2023-000592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 07/11/2024] [Indexed: 08/07/2024] Open
Abstract
Background and objectives Cardioembolic stroke (CES) appears to be a rare cause of stroke (4%-9%) in people living with HIV (PLWH) in sub-Saharan Africa (SSA). However, due to limited access to diagnostic resources, this may be an underestimate. It is also unclear which cardiac pathologies are the major contributors to CES in this region. We sought to determine the prevalence and aetiology of CES in PLWH and to determine whether there are any differences compared with HIV negative stroke patients. Methods This cross-sectional study recruited PLWH with new-onset stroke at a quaternary-level hospital in Johannesburg, South Africa, from 2014 to 2017, and compared them to age-matched and sex-matched HIV negative stroke patients. Comprehensive investigations were performed to determine the underlying stroke aetiology, including electrocardiography, echocardiography, CT angiography and cerebrospinal fluid examination. Results 85 PLWH with ischaemic stroke were recruited and compared with 109 HIV negative controls. CES was identified in 17/85 (20.0%) of PLWH. These patients had more severe strokes than PLWH with non-CES (National Institutes of Health Stroke Scale score 14.9±6.7 vs 11.7±5.4, p=0.04). Cardiomyopathy was the predominant cardiac pathology in PLWH (76.4% vs 45.5% in HIV negative, p=0.04) while valvulopathy was more common in HIV negative patients (42.4% vs 11.8% in PLWH, p=0.03). Arrhythmia (n=1) and ischaemic heart disease (n=1) were uncommon in PLWH. Conclusion CES is underdiagnosed in SSA and is more severe than non-CES. The identification of cardiomyopathy as the predominant underlying cardiac pathology may assist to target resources towards its detection using accessible cost-effective biomarkers.
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Affiliation(s)
- Eitzaz Sadiq
- Division of Neurology, Department of Neurosciences, University of the Witwatersrand Johannesburg Faculty of Health Sciences, Johannesburg, South Africa
| | - Angela Woodiwiss
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, University of the Witwatersrand Johannesburg Faculty of Health Sciences, Johannesburg, South Africa
| | - Gavin Norton
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, University of the Witwatersrand Johannesburg Faculty of Health Sciences, Johannesburg, South Africa
| | - Girish Modi
- Division of Neurology, Department of Neurosciences, University of the Witwatersrand Johannesburg Faculty of Health Sciences, Johannesburg, South Africa
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Liang X, Ma L, Zhang L, Yang D, Zeng L. Effects of Huoxue Qufeng Decoction combined with Tongguan Liquefying Acupoint Penetration therapy on swallowing function and quality of life in patients with ischemic stroke. Am J Transl Res 2024; 16:3046-3054. [PMID: 39114710 PMCID: PMC11301454 DOI: 10.62347/wwyp7009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/09/2024] [Indexed: 08/10/2024]
Abstract
OBJECTIVE To analyze the effects of Huoxue Qufeng Decoction combined with Tongguan Liquefying Acupoint Penetration therapy on swallowing function and quality of life in patients with ischemic stroke. METHODS A total of 145 patients with post-stroke dysphagia admitted to Dingxi People's Hospital from January 2019 to May 2022 were selected with 65 patients in the control group and 80 patients in the observation group. The control group received Huoxue Qufeng Decoction alone, while the observation group received additional Tongguan Liquefying Acupoint Penetration therapy. Clinical efficacy, NIH Stroke Scale (NIHSS) score, Water Swallow Test, Swallowing Function Assessment (SSA) score, MD Anderson Dysphagia Inventory (MDADI) score, overall incidence of adverse events, and Swallowing Quality of Life (SWAL-QOL) score were compared between the two groups. RESULTS The total response rate in the observation group was higher than that in the control group, with a statistically significant difference (P<0.01). After treatment, the SSA score and NIHSS score were statistically lower in the observation group than in the control group (P<0.01). The MDADI and SWAL-QOL scores were higher in the observation group than in the control group, with a statistically significant difference (both P<0.01). The total effective rate reflected by the Water Swallow Test was significantly higher in the observation group than in the control group (P<0.05). There was no significant difference in the incidence of adverse events between the two groups (P>0.05). Univariate analysis revealed that age and treatment plan were factors influencing the recovery of swallowing function. Logistic multivariate regression analysis further identified age and treatment plan as independent risk factors affecting patient prognosis (P<0.05). CONCLUSION Huoxue Qufeng Decoction combined with Tongguan Liquefying Acupoint Penetration has a significant effect on post-stroke dysphagia, effectively improving swallowing function and enhancing quality of life.
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Affiliation(s)
- Xuzhong Liang
- Department of Pharmacy, Dingxi People’s HospitalNo. 22 Anding Road, Anding District, Dingxi 743000, Gansu, China
| | - Li Ma
- Department of Cardiovascular II, The First People’s Hospital of Lanzhou CityNo. 1 Wujiayuan West Street, Qilihe District, Lanzhou 730050, Gansu, China
| | - Lixia Zhang
- Pharmacy Intravenous Admixture Service, Dingxi People’s HospitalNo. 22 Anding Road, Anding District, Dingxi 743000, Gansu, China
| | - Dongnian Yang
- Department of Medical, Gansu Second People’s HospitalNo. 396 Dingxinan Road, Chengguan District, Lanzhou 730000, Gansu, China
| | - Lanrui Zeng
- Department of Rehabilitation, Gansu Second People’s HospitalNo. 396 Dingxinan Road, Chengguan District, Lanzhou 730000, Gansu, China
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Matuja SS, Ngimbwa J, Andrew L, Shindika J, Nchasi G, Kasala A, Paul IK, Ndalahwa M, Mawazo A, Kalokola F, Ngoya P, Rudovick L, Kilonzo S, Wajanga B, Massaga F, Kalluvya SE, Munseri P, Mnacho MA, Okeng’o K, Kimambo H, Manji M, Ruggajo P, Nagu T, Ahmed RA, Sheriff F, Mahawish K, Mangat H, Nguyen-Huynh MN, Saylor D, Peck R. Stroke characteristics and outcomes in urban Tanzania: Data from the Prospective Lake Zone Stroke Registry. Int J Stroke 2024; 19:536-546. [PMID: 38031727 PMCID: PMC11132936 DOI: 10.1177/17474930231219584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
BACKGROUND Stroke is a second leading cause of death globally, with an estimated one in four adults suffering a stroke in their lifetime. We aimed to describe the clinical characteristics, quality of care, and outcomes in adults with stroke in urban Northwestern Tanzania. METHODS We analyzed de-identified data from a prospective stroke registry from Bugando Medical Centre in Mwanza, the second largest city in Tanzania, between March 2020 and October 2022. This registry included all adults ⩾18 years admitted to our hospital who met the World Health Organization clinical definition of stroke. Information collected included demographics, risk factors, stroke severity using the National Institutes of Health Stroke Scale, brain imaging, indicators for quality of care, discharge modified Rankin Scale, and in-hospital mortality. We examined independent factors associated with mortality using logistic regression. RESULTS The cohort included 566 adults, of which 52% (294) were female with a mean age of 65 ± 15 years. The majority had a first-ever stroke 88% (498). Premorbid hypertension was present in 86% (488) but only 41% (200) were taking antihypertensive medications before hospital admission; 6% (32) had HIV infection. Ischemic strokes accounted for 66% (371) but only 6% (22) arriving within 4.5 h of symptom onset. In-hospital mortality was 29% (127). Independent factors associated with mortality were severe stroke (adjusted odds ratio (aOR) = 1.81, 95% confidence interval (CI) = 1.47-2.24, p < 0.001), moderate to severe stroke (aOR = 1.49, 95% CI = 1.22-1.84, p < 0.001), moderate stroke (aOR = 1.80, 95% CI = 1.52-2.14, p < 0.001), leukocytosis (aOR = 1.19, 95% CI = 1.03-1.38, p = 0.022), lack of health insurance coverage (aOR = 1.15, 95% CI = 1.02-1.29, p = 0.025), and not receiving any form of venous thromboembolism prophylaxis (aOR = 1.18, 95% CI = 1.02-1.37, p = 0.027). CONCLUSION We report a stroke cohort with poor in-hospital outcomes in urban Northwestern Tanzania. Early diagnosis and treatment of hypertension could prevent stroke in this region. More work is needed to raise awareness about stroke symptoms and to ensure that people with stroke receive guidelines-directed therapy.
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Affiliation(s)
- Sarah Shali Matuja
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Joshua Ngimbwa
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Lilian Andrew
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Jemima Shindika
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Goodluck Nchasi
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Anna Kasala
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Innocent Kitandu Paul
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Mary Ndalahwa
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Akili Mawazo
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Fredrick Kalokola
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Patrick Ngoya
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Ladius Rudovick
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Semvua Kilonzo
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Bahati Wajanga
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Fabian Massaga
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
- Department of Internal Medicine, Bugando Medical Center, Mwanza, Tanzania
| | - Samuel E Kalluvya
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Patricia Munseri
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Mohamed A Mnacho
- Department of Internal Medicine, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Kigocha Okeng’o
- Department of Internal Medicine, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Henrika Kimambo
- Department of Internal Medicine, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Mohamed Manji
- Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Paschal Ruggajo
- Department of Curative Services, Ministry of Health Community Development, Gender, Elderly and Children, Dodoma Tanzania
| | - Tumaini Nagu
- Ministry of Health Community Development, Gender, Elderly and Children, Dodoma Tanzania
| | - Rashid Ali Ahmed
- Department of Neurology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States
| | - Faheem Sheriff
- Department of Neurology, Texas Tech University Health Sciences Center, Paul L. Foster School of Medicine, El Paso, TX, United States
| | - Karim Mahawish
- Stroke Medicine Department, Counties Manukau Health, Auckland, New Zealand
| | - Halinder Mangat
- Department of Neurology, Division of Neurocritical care, University of Kansas Medical Center
| | - Mai N Nguyen-Huynh
- Division of Research, The Permanente Medical Group, Kaiser Permanente Northern California, Oakland
| | - Deanna Saylor
- Department of Neurology, Johns Hopkins University School of Medicine
- Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia
| | - Robert Peck
- Department of Internal Medicine, Catholic University of Health and Allied Sciences-Weill Bugando School of Medicine, Mwanza, Tanzania
- Center for Global Health, Department of Internal Medicine, Weill Cornell Medicine, New York, New York, USA
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Abissegue G, Yakubu SI, Ajay AS, Niyi-Odumosu F. A systematic review of the epidemiology and the public health implications of stroke in Sub-Saharan Africa. J Stroke Cerebrovasc Dis 2024; 33:107733. [PMID: 38663647 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND With approximately 11 million strokes occurring annually worldwide, and over 6.5 million deaths annually, stroke has made its place as one of the major killers in the world. Although developing countries make up more than 4/5 of the global stroke burden, well-grounded information on stroke epidemiology remains lacking there. AIMS This systematic review study aimed to provide a synthesis of studies on the incidence and prevalence of stroke among adults in sub-Saharan Africa (SSA), subsequently deduce the associated risk factors and public health implications (mortality rates and economic costs) of the disease on the population of this region. METHODS A systematic review of studies carried out in the region and published on PUBMED. Eligibility criteria were established using the PEO (Population/Patient, Exposure, Outcome) format. Research articles investigating either (or all) of the following: ischemic or haemorrhagic stroke, incidence, prevalence, and risk factors of stroke in adults (≥ 18 years old), in at least one region of SSA were included. Exclusion criteria comprised studies involving populations younger than 18 years old, research conducted outside the designated research region, and articles inaccessible in full text. The PRISMA guidelines were used for the search strategy. RESULTS Fifty-two studies were included review. Among them, over 11 studies investigated the prevalence of the disease. Some older studies within the continent (Nigeria, 2011) showed a prevalence of 1.3 per 100 while more recent studies (Zambia, 2021) showed a prevalence of 4.3 per 1000. The highest prevalence noted in this region was in Madagascar (2017) with 48.17 per 100, while the lowest was recorded in (Zimbabwe, 2017) with 0.61 per 100. The study in Tanzania showed a crude incidence of 94·5 per 100 000 (76·0-115·0) while the study in Ghana in 2018 showed an incidence of 14.19 events per 1000 person-years [10.77-18.38]. The identified risk factors included hypertension, diabetes, smoking, alcohol consumption, physical inactivity, poor diets (more salt, less vegetables), dyslipidaemia, HIV/AIDS co-infection, heart disease (cardiomyopathies, cardiac arrhythmias), obesity, previous stroke and/or family history of stroke. Over 21 studies investigated the mortality rates due to stroke in SSA, with most of the studies being in West Africa. These studies revealed mortality rates as high as 43.3% in Ghana, and as low as 10.9% in Cameroon. Few studies reported on the economic costs of stroke in the region; two in Benin, two in Nigeria and one in Tanzania. CONCLUSION The increasing incidence/prevalence, lifestyle factors and interactions with other diseases, including major communicable diseases, stroke is becoming a pressing public health problem for SSA. Reducing the incidence of stroke in Africa will surely lower mortality, morbidity, disability, and the neurological as well as cognitive aftereffects of stroke, as is clear from the experience of higher-income nations. We recommend a collective intervention involving the governments of nations, international organizations, civil society, and the private sector for greater impact and sustainable outcomes reducing the epidemiology and implications of stroke in SSA.
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Affiliation(s)
- Gisele Abissegue
- Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
| | | | - Aiswarya Seema Ajay
- Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
| | - Faatihah Niyi-Odumosu
- School of Applied Sciences, University of the West of England, Bristol, United Kingdom.
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Stammler R, Guillaume J, Mazighi M, Denier C, Raynouard I, Lapergue B, De Broucker T, Meseguer E, Hosseini H, Leger A, Smadja D, Lamy C, Obadia M, Moulignier A. First-ever acute ischemic strokes in HIV-infected persons: A case-control study from stroke units. Ann Clin Transl Neurol 2024; 11:916-925. [PMID: 38287505 PMCID: PMC11021677 DOI: 10.1002/acn3.52008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/05/2023] [Accepted: 01/09/2024] [Indexed: 01/31/2024] Open
Abstract
OBJECTIVE The stroke risk for persons living with human immunodeficiency virus (PLHIVs) doubled compared to uninfected individuals. Stroke-unit (SU)-access, acute reperfusion therapy-use and outcome data on PLHIVs admitted for acute ischemic stroke (AIS) are scarce. METHODS AIS patients admitted (01 January 2017 to 31 January 2021) to 10 representative Paris-area SUs were screened retrospectively from the National Hospitalization Database. PLHIVs were compared to age-, initial NIHSS- and sex-matched HIV-uninfected controls (HUCs). Outcome was the 90-day modified Rankin Scale score. RESULTS Among 126 PLHIVs with confirmed first-ever AIS, ~80% were admitted outside the thrombolysis-administration window. Despite antiretrovirals, uncontrolled plasma HIV loads exceeded 50 copies/mL (26% of all PLHIVs; 38% of those ≤55 years). PLHIVs' stroke causes by decreasing frequency were large artery atherosclerosis (LAA), undetermined, other cause, cerebral small-vessel disease (CSVD) or cardioembolism. No stroke etiology was associated with HIV duration or detectable HIVemia. MRI revealed previously unknown AIS in one in three PLHIVs, twice the HUC rate (p = 0.006). Neither group had optimally controlled modifiable cardiovascular risk factors (CVRFs): 20%-30% without specific hypertension, diabetes, and/or dyslipidemia treatments. Their stroke outcomes were comparable. Multivariable analyses retained good prognosis associated solely with initial NIHSS or reperfusion therapy. Older age and hypertension were associated with CSVD/LAA for all PLHIVs. Standard neurovascular care and reperfusion therapy were well-tolerated. INTERPRETATION The high uncontrolled HIV-infection rate and suboptimal CVRF treatment support heightened vigilance to counter suboptimal HIV suppression and antiretroviral adherence, and improve CVRF prevention, mainly for younger PLHIVs. Those preventive, routine measures could lower PLHIVs' AIS risk.
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Affiliation(s)
- Romain Stammler
- Department of Neurology and Stroke UnitRothschild Foundation HospitalParisFrance
| | | | - Mikael Mazighi
- APHP, Department of Neurology and Stroke Unit, Lariboisière Hospital, and Department of Interventional NeuroradiologyRothschild Foundation HospitalParisFrance
| | - Christian Denier
- APHP, Department of Neurology and Stroke UnitHôpital Bicêtre, Paris Saclay UniversityLe Kremlin–BicêtreFrance
| | - Igor Raynouard
- Department of Neurology and Stroke UnitRothschild Foundation HospitalParisFrance
| | - Bertrand Lapergue
- Department of Neurology and Stroke Unit, Foch HospitalVersailles Saint‐Quentin‐en‐Yvelines UniversitySuresnesFrance
| | - Thomas De Broucker
- Department of Neurology and Stroke UnitDelafontaine HospitalSaint‐DenisFrance
| | - Elena Meseguer
- APHP, Department of Neurology and Stroke Unit, Bichat–Claude‐Bernard Hospital, INSERM LVTS‐U1148, DHU FIREUniversity of ParisParisFrance
| | - Hassan Hosseini
- APHP, Department of Neurology and Stroke Unit, Henri‐Mondor HospitalUniversity of Paris XIICréteilFrance
| | - Anne Leger
- APHP, Stroke Unit, Pitié–Salpêtrière HospitalSorbonne UniversityParisFrance
| | - Didier Smadja
- Department of Neurology and Stroke Unit, Centre Hospitalier Sud‐FrancilienParis Saclay UniversityCorbeil‐EssonnesFrance
| | - Catherine Lamy
- Neurology Department and Stroke UnitGHU Paris Psychiatrie et Neurosciences, Sainte‐Anne HospitalParisFrance
| | - Michael Obadia
- Department of Neurology and Stroke UnitRothschild Foundation HospitalParisFrance
| | - Antoine Moulignier
- Department of Neurology and Stroke UnitRothschild Foundation HospitalParisFrance
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8
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Sadiq E, Katzew S, Nel J, Tade G, Woodiwiss A, Norton G, Modi G. Stroke, HIV and the Immune Reconstitution Inflammatory Syndrome in the absence of opportunistic infections. J Neurol Sci 2024; 457:122880. [PMID: 38219384 DOI: 10.1016/j.jns.2024.122880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/05/2024] [Accepted: 01/06/2024] [Indexed: 01/16/2024]
Abstract
INTRODUCTION Stroke in people living with HIV (PLWH) has been described to occur soon after the initiation of antiretroviral therapy (ART) possibly related to the Immune Reconstitution Inflammatory Syndrome (IRIS). We sought to investigate whether there was a temporal association between stroke and recent ART initiation in the absence of opportunistic infections (OIs), and to identify risk factors for this. METHODS This cross-sectional study recruited PLWH with new-onset stroke at a hospital in Johannesburg, South Africa, from 2014 to 2017, excluding all patients with OIs. Patients were assessed for ART duration, CD4 count, HIV viral load, inflammatory markers and cardiovascular risk factors. RESULTS 77 PLWH were recruited, of which 35 were on ART at the time of stroke. Of the patients with confirmed ART duration (n = 28), 9 (32.1%) had a stroke within the first 6 months of starting ART (crude incidence rate of 0.73 cases per patient year). In the period beyond 6 months, 19 strokes occurred (crude incidence rate of 0.21 cases per patient year), translating to a 3.5 times greater risk in the first 6 months (p = 0.0002). There were no clearly identified risk factors when comparing those who had strokes in the first 6 months to those after 6 months and ART-naïve patients. CONCLUSION Almost a third of strokes in PLWH may be related to IRIS, with a crude incidence rate 3.5 times higher in the first 6 months following ART-initiation compared to beyond 6 months. This appears to be independent of OIs. Risk factors are unclear.
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Affiliation(s)
- Eitzaz Sadiq
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Sarah Katzew
- Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Jeremy Nel
- Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Grace Tade
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Angela Woodiwiss
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Gavin Norton
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Girish Modi
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
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Sadiq E, von Klemperer A, Woodiwiss A, Norton G, Modi G. Stroke as the index presentation of traditional cardiovascular risk factors and Human Immunodeficiency Virus in a South African population. J Stroke Cerebrovasc Dis 2024; 33:107529. [PMID: 38103446 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/19/2023] Open
Abstract
OBJECTIVES We sought to identify what proportion of each cardiovascular risk factor and Human Immunodeficiency Virus (HIV) was first diagnosed at the time of stroke, compared to those that were diagnosed prior to the event, and to explore if this had any impact on the severity of stroke. METHODS Adult patients presenting with a new stroke to a quaternary hospital in Johannesburg between 2014 and 2017 were prospectively recruited. Patients were investigated for undiagnosed traditional cardiovascular risk factors (hypertension, diabetes mellitus, dyslipidaemia, atrial fibrillation, obesity and smoking), as well as HIV infection. Stroke severity was assessed using the National Institutes of Health Stroke Scale (NIHSS). RESULTS 346 patients were included. Stroke was the index presentation for at least one risk factor in 199 (57.5 %) patients. Dyslipidaemia was newly diagnosed in 76.0 % of all dyslipidaemics (95 out of 125). Newly-diagnosed dyslipidaemia was associated with a more severe neurological deficit (Median NIHSS of 12 (8-16) vs 7 (4-12), p=0.0007) and younger age on presentation (53 (44-63) years vs 62 (51-71) years, p=0.02) as compared to previously-diagnosed dyslipidaemia. CONCLUSIONS More than half of patients had previously undiagnosed modifiable risk factors at the time of their stroke. Dyslipidaemia was undiagnosed in a very high proportion, and this was associated with a higher stroke severity and younger age of presentation.
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Affiliation(s)
- Eitzaz Sadiq
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine and Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa.
| | - Alexander von Klemperer
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine and Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Angela Woodiwiss
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Gavin Norton
- Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Girish Modi
- Division of Neurology, Department of Neurosciences, School of Clinical Medicine and Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
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Fattakhov N, Ngo A, Torices S, Joseph JA, Okoro A, Moore C, Naranjo O, Becker S, Toborek M. Cenicriviroc prevents dysregulation of astrocyte/endothelial cross talk induced by ischemia and HIV-1 via inhibiting the NLRP3 inflammasome and pyroptosis. Am J Physiol Cell Physiol 2024; 326:C487-C504. [PMID: 38145295 PMCID: PMC11192487 DOI: 10.1152/ajpcell.00600.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023]
Abstract
Blood-brain barrier (BBB) breakdown is one of the pathophysiological characteristics of ischemic stroke, which may contribute to the progression of brain tissue damage and subsequent neurological impairment. Human immunodeficiency virus (HIV)-infected individuals are at greater risk for ischemic stroke due to diminished immune function and HIV-associated vasculopathy. Studies have shown that astrocytes are involved in maintaining BBB integrity and facilitating HIV-1 infection in the brain. The present study investigated whether targeting astrocyte-endothelial cell signaling with cenicriviroc (CVC), a dual chemokine receptor (CCR)2 and CCR5 antagonist, may protect against dysregulation of cross talk between these cells after oxygen-glucose deprivation/reoxygenation (OGD/R) combined with HIV-1 infection. Permeability assay with 10 kDa fluorescein isothiocyanate (FITC)-dextran demonstrated that CVC alleviated endothelial barrier disruption in noncontact coculture of human brain microvascular endothelial cells (HBMECs) with HIV-1-infected human astrocytes, and reversed downregulation of tight junction protein claudin-5 induced by OGD/R- and HIV-1. Moreover, CVC attenuated OGD/R- and HIV-1-triggered upregulation of the NOD-like receptor protein-3 (NLRP3) inflammasome and IL-1β secretion. Treatment with CVC also suppressed astrocyte pyroptosis by attenuating cleaved caspase-1 levels and the formation of cleaved N-terminal GSDMD (N-GSDMD). Secretome profiling revealed that CVC ameliorated secretion levels of chemokine CC chemokine ligand 17 (CCL17), adhesion molecule intercellular adhesion molecule-1 (ICAM-1), and T cell activation modulator T cell immunoglobulin and mucin domain 3 (TIM-3) by astrocytes synergistically induced by OGD/R and HIV-1. Overall, these results suggest that CVC contributes to restoring astrocyte-endothelial cross interactions in an astrocyte-dependent manner via protection against NLRP3 activation and pyroptosis.NEW & NOTEWORTHY The present study reveals the role of astrocytic NOD-like receptor protein-3 (NLRP3) inflammasome in dysfunctional astrocyte-endothelial cross interactions triggered in response to oxygen/glucose deprivation injury associated with human immunodeficiency virus type 1 (HIV-1) infection. Our results suggest that blocking NLRP3 inflammasome activation and pyroptosis-mediated inflammation with cenicriviroc (CVC) may constitute a potentially effective therapeutic strategy for blood-brain barrier (BBB) protection during HIV-1-associated ischemic stroke.
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Affiliation(s)
- Nikolai Fattakhov
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Alex Ngo
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Silvia Torices
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Joelle-Ann Joseph
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Adesuwa Okoro
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Cameron Moore
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Oandy Naranjo
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Sarah Becker
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Michal Toborek
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, United States
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11
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Mbonde AA, Chang J, Musubire AK, Okello S, Kayanja A, Moses A, Butterfield RJ, Chow FC, Saylor DR, O'Carroll CB, Siedner M. HIV Infection and 90-Day Stroke Outcomes in Uganda: A Prospective Observational Cohort Study. Neurol Clin Pract 2023; 13:e200198. [PMID: 38495078 PMCID: PMC10942001 DOI: 10.1212/cpj.0000000000200198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 09/21/2023] [Indexed: 03/19/2024]
Abstract
Background and Objectives Little is known about the impact of HIV infection on the clinical presentation and outcomes after stroke in the modern antiretroviral therapy (ART) era. We aimed to compare stroke characteristics and outcomes between persons with HIV (PWH) and without HIV (PWOH) presenting with stroke in Uganda. Methods We conducted a matched cohort study at Mulago National Referral Hospital and Mbarara Regional Referral Hospital between January 2018 and November 2020. We enrolled consecutive PWH presenting with CT-confirmed acute or subacute stroke (symptom onset ≤14 days) and matched them by sex and stroke type to 2 consecutive available PWOH admitted to the same hospital. We obtained baseline clinical data and followed participants for 90 days from the day of clinical presentation. We compared stroke severity (defined by the NIH stroke scale [NIHSS]) and 90-day all-cause mortality and morbidity (using the modified Rankin Scale [mRS]) by HIV serostatus with and without adjustment for confounders. Results We enrolled 105 PWH and 157 PWOH with stroke. PWH were younger (mean [SD] age 49 [14] vs 59 [16] years, p < 0.001), and nearly 80% (82/105) were on ART for a median of 5 years and a median CD4 count of 214 cells/uL (interquartile range 140, 337). Compared with PWOH, PWH presented with a 3-point lower median NIHSS (16 vs 19, p = 0.011), a 20% lower proportion of all-cause mortality at 90 days (p = 0.001), and had less disability at 90 days (median mRS 4 vs 5, p = 0.004). Age and NIHSS-adjusted odds ratio of 90-day all-cause mortality in PWH compared with PWOH was 0.45 (95% CI 0.22-0.96, p = 0.037). Discussion In the modern ART era, PWH with acute stroke in Uganda present with modest stroke and are significantly less likely to die within 90 days than PWOH. This potentially reflects the protective effects of ART, enhanced health care access, and their younger age at stroke presentation.
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Affiliation(s)
- Amir A Mbonde
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Jonathan Chang
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Abdu K Musubire
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Samson Okello
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Adrian Kayanja
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Acan Moses
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Richard J Butterfield
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Felicia C Chow
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Deanna R Saylor
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Cumara B O'Carroll
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
| | - Mark Siedner
- Department of Medicine (AAM, AK, MS), Mbarara University of Science and Technology, Uganda; Harvard Medical School (AAM, MS); Department of Medicine (JC), Boston Medical Center, MA; Department of Medicine (Neurology) (AKM), Makerere University, Kampala, Uganda; Department of Epidemiology (SO), Gillings School of Global Public Health, University of North Carolina at Chapel Hill; Department of Radiology (AM), Mbarara University of Science and Technology, Uganda; Department of Quantitative Health Sciences (RJB), Mayo Clinic Arizona, Phoenix, AZ; Departments of Neurology and Medicine (Infectious Diseases) (FCC), University of California San Francisco; Department of Neurology (DRS), John Hopkins University School of Medicine, Baltimore, MD; Department of Internal Medicine (DRS), University Teaching Hospital, Lusaka, Zambia; Department of Neurology (CBOC), Mayo Clinic Arizona, Scottsdale; and Department of Medicine and Medical Practice Evaluation Center (MS), Massachusetts General Hospital, Boston
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12
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Kiiza MC, Wanzhu Z. Stroke fatality in sub-Saharan Africa: time for action. Lancet Glob Health 2023; 11:e489-e490. [PMID: 36805868 DOI: 10.1016/s2214-109x(23)00081-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 02/06/2023] [Indexed: 02/18/2023]
Affiliation(s)
| | - Zhang Wanzhu
- Uganda Heart Institute, Mulago Hospital, Kampala, Uganda
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13
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Arslan E, Cetinkaya O. Analysis of the demographic characteristics and clinical profile of acute ischemic strokes admitted to the emergency centre in the Somalia population. Afr J Emerg Med 2022; 12:216-224. [PMID: 35719185 PMCID: PMC9188962 DOI: 10.1016/j.afjem.2022.04.010] [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: 11/24/2021] [Revised: 03/20/2022] [Accepted: 04/22/2022] [Indexed: 11/29/2022] Open
Abstract
Background Stroke is a leading cause of death and chronic disability worldwide. In Sub-Saharan Africa (SSA), which includes Somalia, stroke represents a significant part of the chronic disease burden. However, there is relatively little data on risk factors, demographics, and clinical profiles. This study aimed to define the etiological, demographic characteristics, classification of stroke and functional status of patients with acute ischemic stroke (AIS) admitted to the emergency centre, and to create projections to evaluate the incidence and genetic aspects of stroke. Methods The study population consisted of patients who applied to the emergency centre between 1 May 2017 and 1 May 2021 and were diagnosed with acute ischemic stroke (AIS). Patient demographics, season of onset, risk factors, laboratory data, imaging results, infarct location, AIS subtype and treatment outcomes were collected, and compared. Results A total of 3,968 patients diagnosed with ischemia stroke were included in the study. The mean age was 51.12 ± 16.43 years, and we reported male predominance (65.7%). While hypertension, hyperlipidaemia, Diabetes mellitus (DM) were more frequent among the risk factors, smoking history and alcohol consumption history were very low. HIV-infected ischemic stroke was detected at a high rate (20.9%) and was common in a relatively young age group (31.8 ± 14.3). Large-artery atherosclerosis (LAA) subtype was detected with a high rate of 67.7%. The most common clot localization was in Supratentorial location (74.3%), and according to OSCP classification, partial anterior circulation infarcts (PACI) subtype (56.3%) was the most common. And these results were again different from other studies. Discussion While the incidence of stroke and especially HIV-associated youthful ischemic stroke continues to increase rapidly in developing countries such as Somalia, with the addition of inadequate primary health care services, stroke has become a major public health problem in African countries regarding its costs at social, psychological, and economic levels.
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Affiliation(s)
- Ebubekir Arslan
- Mogadishu Somalia Turkish Training and Research Hospital, Mogadishu, Somalia
| | - Osman Cetinkaya
- Mogadishu Somalia Turkish Training and Research Hospital, Mogadishu, Somalia
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14
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Corbett C, Brey N, Pitcher RD, O'Hagan S, Esterhuizen TM, Chow FC, Decloedt EH. Prevalence and Characteristics of HIV-Associated Stroke in a Tertiary Hospital Setting in South Africa. Neurology 2022; 99:e904-e915. [PMID: 36038281 PMCID: PMC9502736 DOI: 10.1212/wnl.0000000000200780] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 04/11/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Antiretroviral treatment (ART) era HIV-associated stroke data from sub-Saharan Africa are limited. We determined the prevalence of HIV in patients presenting with acute symptomatic stroke and compared risk factors, clinical characteristics, and brain imaging with age-matched stroke patients without HIV. METHODS We conducted a retrospective study of adults presenting with any type of stroke to Tygerberg Hospital in a 12-month period. Patients living with HIV (PLWH) and HIV-uninfected (HIV-) patients were matched based on age group (1:2 ratio). Patients were identified by keyword search, while HIV status was ascertained from laboratory data. Clinical and imaging data were extracted from medical records. RESULTS Among 884 patients presenting with acute strokes, the minimum prevalence of HIV infection was 9.3% (95% CI: 7.4%-11.2%), with 496 patients (56.1%) with negative HIV status and 306 patients with unknown HIV status (34.6%). The mean age at presentation in PLWH was 46 (±11) years compared with 55 (±14) years in HIV- patients (p < 0.001). Smoking was less prevalent in PLWH with an adjusted relative risk ratio of RR = 0.58 (95% CI: 0.39-0.86). Concurrent infection was more prevalent in PLWH (25.6% vs 4.9%, p ≤ 0.001) with an adjusted relative risk ratio of RR = 2.07 (95% CI: 1.49-2.84), largely in patients with a CD4 count <200 cells/μL. PLWH with higher CD4 counts (≥200 cells/μL, 51.3%) had more traditional risk factors and less concurrent infection. Among PLWH, 68.3% were on ART, and 39.3% of them had been started or restarted on ART within the past 6 months. Basal ganglia infarcts (35.6% vs 18.3%, p = 0.014) and multiple vascular territory involvement (25.4% vs 7.7%, p = 0.002) were more common in PLWH. Clinical presentation, ischemic stroke type, and in-hospital outcomes did not differ between the groups. DISCUSSION Stroke patients with HIV were younger, had less traditional cardiovascular risk factors, and more concurrent infections than patients without HIV, especially those with a lower CD4 count. Recent ART initiation or reinitiation rates were high. Significant differences in CT brain imaging findings were seen. Understanding the multifactorial mechanisms underlying increased stroke risk, including associated infections and potential ART-associated immune reconstitution, is crucial and needs further study.
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Affiliation(s)
- Craig Corbett
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Naeem Brey
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Richard D Pitcher
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Suzanne O'Hagan
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Tonya M Esterhuizen
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Felicia C Chow
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco
| | - Eric H Decloedt
- From the Divisions of Clinical Pharmacology (C.C., E.H.D., F.C.C.) and Neurology (N.B.), Department of Medicine, Division of Radiodiagnosis (R.D.P., S.O.H.), Department of Medical Imaging and Clinical Oncology, and Biostatistics Unit (T.M.E.), Division of Epidemiology and Biostatistics, Stellenbosch University, Cape Town Western Cape, South Africa; and Departments of Neurology and Medicine (Infectious Diseases) (F.C.C.), University of California, San Francisco.
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Mbonde AA, Chang J, Musubire A, Okello S, Kayanja A, Acan M, Nkwanga J, Katende A, Chow FC, Saylor D, O'Carroll C, Siedner MJ. An analysis of stroke risk factors by HIV serostatus in Uganda: Implications for stroke prevention in sub-Saharan Africa. J Stroke Cerebrovasc Dis 2022; 31:106449. [DOI: 10.1016/j.jstrokecerebrovasdis.2022.106449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/24/2022] [Accepted: 03/12/2022] [Indexed: 10/18/2022] Open
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16
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Smythe T, Inglis-Jassiem G, Conradie T, Kamalakannan S, Fernandes S, van-Niekerk SM, English R, Webster J, Hameed S, Louw QA. Access to health care for people with stroke in South Africa: a qualitative study of community perspectives. BMC Health Serv Res 2022; 22:464. [PMID: 35395847 PMCID: PMC8993457 DOI: 10.1186/s12913-022-07903-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/31/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Incidence of stroke is increasing in sub-Saharan Africa. People who survive stroke experience disability and require long-term care. Health systems in South Africa (SA) are experiencing important challenges, and services in the public health system for people with stroke (PWS) are fragmented. We aimed to explore the perspectives and experiences of PWS related to stroke care services to inform health system strengthening measures. METHODS In-depth interviews with 16 PWS in urban and rural areas in the Western and Eastern Cape Provinces of SA were conducted between August and October 2020. PWS were recruited through existing research networks, non-government organisations and organisations of persons with disabilities by snowball sampling. Interviews were transcribed, coded, and thematically analysed. We used the conceptual framework of access to health care as proposed by Levesque et al. to map and inform barriers to accessing health care from the user perspective. RESULTS PWS recognised the need for health care when they experienced signs of acute stroke. Health literacy on determinants of stroke was low. Challenges to accessing stroke care include complex pathways to care, physical mobility related to stroke, long travel distances and limited transport options, waiting times and out of pocket expenses. The perceived quality of services was influenced by cultural beliefs, attitudinal barriers, and information challenges. Some PWS experienced excellent care and others particularly poor care. Positive staff attitude, perceived competence and trustworthiness went in hand with many technical and interpersonal deficits, such as long waiting times and poor staff attitude that resulted in poor satisfaction and reportedly poor outcomes for PWS. CONCLUSIONS Strategic leadership, governance and better resources at multiple levels are required to address the unmet demands and needs for health care of PWS. Stroke care could be strengthened by service providers routinely providing information about prevention and symptoms of stroke, treatment, and services to patients and their social support network. The role of family members in continuity of care could be strengthened by raising awareness of existing resources and referral pathways, and facilitating connections within services.
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Affiliation(s)
- T Smythe
- International Centre for Evidence in Disability, London School of Hygiene & Tropical Medicine, London, UK.
| | - G Inglis-Jassiem
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - T Conradie
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - S Kamalakannan
- International Centre for Evidence in Disability, London School of Hygiene & Tropical Medicine, London, UK
- Public Health Foundation of India, Indian Institute of Public Health Hyderabad, SACDIR, Hyderabad, India
| | - S Fernandes
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, UK
| | - S M van-Niekerk
- Department of Physical Therapy & Rehabilitation Science, College of Health Sciences, Qatar University, Doha, Qatar
| | - R English
- Division of Health Systems and Public Health, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - J Webster
- Department of Disease Control, Faculty of Infectious & Tropical Diseases, London School of Tropical Health and Medicine, London, UK
| | - S Hameed
- International Centre for Evidence in Disability, London School of Hygiene & Tropical Medicine, London, UK
| | - Q A Louw
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
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17
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Abstract
BACKGROUND Over recent years non-communicable diseases have dramatically increased in low- and middle-income countries, including those of sub-Saharan Africa. With continuing high levels of infectious disease, these countries now face the double burden of disease. Stroke has emerged as a major cause of hospital admission, disability, and mortality for which the major modifiable risk factor is hypertension, which is often not diagnosed and, even if diagnosed, not treated and, even if treated, not controlled. METHODS In this award lecture paper I outline my personal experience of measuring the burden of, and risk factors for, stroke in sub-Saharan Africa, along with the challenges faced. I will specifically describe the measurement of mortality and case fatality, prevalence and incidence as well as commenting on aetiology and risk factors and reflect on future initiatives and directions. RESULTS Over the past 5 decades there has been a dramatic increase in numbers of stroke patients admitted to hospital throughout sub-Saharan Africa, with high in hospital mortality rates, also reflected in high case fatality rates in those cohorts followed up following discharge from hospital. Community-based surveys assessing mortality from stroke using verbal autopsy have demonstrated very high age-adjusted rates. Age adjusted prevalence rates assessed by door-to-door surveys have generally shown lower prevalence than high income countries. The Tanzanian stroke incidence study, which incorporated verbal autopsy for those patients dying before reaching hospital, demonstrated some of the highest age-adjusted stroke incidence rates in the world. There were high rates of stroke in younger ages and high rates of intracranial haemorrhage though not as high as previously shown in hospital-based studies. Hypertension is the main modifiable risk factor but other risk factors such as HIV are important while, certainly in rural populations, raised cholesterol remains rare as does carotid artery stenosis and history of transient ischemic attack. Other vascular disease such as ischemic heart disease and peripheral vascular disease is also less common. CONCLUSIONS There is already a large burden relating to stroke in sub-Saharan Africa and this will only escalate further as the population ages. Hypertension is the biggest risk factor for mortality worldwide and in sub-Saharan Africa prevalence rates are very high with the majority of people suffering with stroke not being diagnosed with their hypertension prior to their stroke. The most important challenge is to improve primary prevention for which improving diagnosis and control rates for hypertension is the number one priority. For those who do have stroke there is a need to increase the number of suitably staffed stroke units as these have been shown to have a very large impact on improving both mortality and morbidity in high income countries. There are still many unanswered questions and a need for more research throughout sub-Saharan Africa on risk factors, and treatment, for stroke.
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Affiliation(s)
- Richard Walker
- Northumbria Healthcare NHS Foundation Trust, UK; Population Health Sciences Institute, Newcastle University, UK.
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18
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Howlett WP, Urasa SJ, Maro VP, Walker RW, Kilonzo KG, Howlett PJ, Dekker MCJ. Neurological disorders in Northern Tanzania: A 6-year prospective hospital-based case series. Afr Health Sci 2022; 22:269-284. [PMID: 36032440 PMCID: PMC9382522 DOI: 10.4314/ahs.v22i1.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background The burden of neurological disorders is large and altered by the HIV epidemic. Objectives We describe the pattern of neurological disorders and their association with HIV infection in adult patients attending a consultant hospital in Northern Tanzania. Methods In this prospective cross-sectional study, we collected data on adult neurological referrals over a 6-year period between 2007-13. The odds of HIV infection, across neurological categories adjusted for age and sex, was calculated. Results Of 2037 participants, 54.8% were male and 45.2% were female. The median age of participants was 43 years. The results for HIV screening were available for 992/2037 (48.7%) patients, of whom 306 (30.8%) were seropositive. The most frequent neurological disorders were cerebrovascular disease (19.9%), paraplegia (13.6%), and peripheral neuropathies (8%). Taken together CNS infection accounted for 278/2037 (13.6%). The adjusted odds (aOR) of HIV infection was highest amongst infections; brain abscesses (aOR 107, 95% CI 35.1-470.4) and meningitis/encephalitis (aOR 40.1, 95% CI 13.6-172.9), but also raised in cerebrovascular disease, paraplegia, peripheral neuropathies, cranial nerve palsies, seizures, cerebllar disorders, movement disorders, motor neuron disease and headache. Conclusion The main pattern of neurological disorders in Northern Tanzania is presented. The odds of HIV infection was highest in CNS infections and in a wide range of non-communicable neurological disorders.
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Affiliation(s)
- William P Howlett
- Kilimanjaro Christian Medical Centre, Moshi, Kilimanjaro, Tanzania
- Centre for International Health University of Bergen, Bergen Norway
| | - Sarah J Urasa
- Kilimanjaro Christian Medical Centre, Moshi, Kilimanjaro, Tanzania
| | - Venance P Maro
- Kilimanjaro Christian Medical Centre, Moshi, Kilimanjaro, Tanzania
| | - Richard W Walker
- Department of Medicine, North Tyneside General Hospital, Rake Lane, North Shields, Tyne, and Wear NE29 8NH
| | - Kajiru G Kilonzo
- Kilimanjaro Christian Medical Centre, Moshi, Kilimanjaro, Tanzania
| | - Patrick J Howlett
- Royal Brompton and Harefield Hospital Trust Fulham Road, London, SW3 6HP
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19
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Ransley G, Zimba S, Gadama Y, Saylor D, Benjamin L. Trends and Clinical Characteristics of HIV and Cerebrovascular Disease in Low- and Middle-Income Countries (LMICs) Between 1990 and 2021. Curr HIV/AIDS Rep 2022; 19:548-565. [PMID: 36264482 PMCID: PMC9759508 DOI: 10.1007/s11904-022-00627-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF THE REVIEW To describe trends and clinical characteristics of HIV and cerebrovascular disease between 1990 and 2021 in LMICs and identify the gaps in our understanding. RECENT FINDINGS In the era of antiretroviral therapy (ART), people living with HIV (PLWH) live longer and risk excess cerebrovascular events due to ageing and HIV-driven factors. Despite the highest burden of HIV infection in low-to-middle income countries, there is underreporting in the literature of cerebrovascular events in this population. We systematically reviewed published literature for primary clinical studies in adult PLWH and cerebrovascular disease in LMICs. The clinical phenotype of cerebrovascular disease among PLWH over the last three decades in LMICs has evolved and transitioned to an older group with overlapping cerebrovascular risk factors. There is an important need to increase research in this population and standardise reporting to facilitate understanding, guide development of appropriate interventions, and evaluate their impact.
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Affiliation(s)
- George Ransley
- grid.83440.3b0000000121901201National Hospital for Neurology and Neurosurgery, University College London Foundation Trust, London, UK
| | - Stanley Zimba
- grid.79746.3b0000 0004 0588 4220Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia
| | - Yohane Gadama
- grid.11956.3a0000 0001 2214 904XDivision of Neurology, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa ,grid.419393.50000 0004 8340 2442Malawi-Liverpool Wellcome Trust Clinical Research Program, Kamuzu University of Health Sciences (KUHeS), Blantyre, Malawi
| | - Deanna Saylor
- grid.79746.3b0000 0004 0588 4220Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia ,grid.21107.350000 0001 2171 9311Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Laura Benjamin
- grid.83440.3b0000000121901201National Hospital for Neurology and Neurosurgery, University College London Foundation Trust, London, UK ,grid.83440.3b0000000121901201MRC LMCB, University College London, Gower Street, London, WC1E 6BT UK
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20
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Wakida EK, Atuhaire CD, Karungi CK, Maling S, Obua C. Mbarara University Research Training Initiative: Experiences and Accomplishments of the MEPI Junior D43 TW010128 Award in Uganda. ADVANCES IN MEDICAL EDUCATION AND PRACTICE 2021; 12:1397-1410. [PMID: 34887692 PMCID: PMC8650769 DOI: 10.2147/amep.s339752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE In 2015, Mbarara University of Science and Technology was awarded the Mbarara University Research Training Initiative (MURTI) under grant number D43 TW010128 to build capacity of junior faculty to become the next generation of researchers in Africa. In this paper, we document the experiences and achievements of the research capacity building efforts at MUST. METHODS We conducted a descriptive evaluation study which involved document review and in-depth interviews. We used "Reach" and 'Effectiveness' from the RE-AIM framework to guide the document review, and the organizational theory of implementation effectiveness to guide the in-depth interviews. RESULTS In the MURTI program, we conducted 17 short courses between August 2015 and July 2021, a total of 6597 attendances were recorded. The most attended courses were responsible conduct of research (n = 826), qualitative research methods (n = 744), and data management (n = 613). Thirty-three fellows were recruited and funded to conduct mentored research leading to 48 publications and 14 extramural grant applications were yielded. From the in-depth interviews, the participants appreciated the research training program, the enhanced research skills attained, and the institutional capacity built. They attributed the success of the program to the training approach of using short courses, readiness of the junior faculty to change, and the supportive environment by the mentors and trainers in the program. CONCLUSION The D43 TW010128 research training grant-built capacity for the junior faculty at MUST, enhanced their research skills, promoted research capacity institutionally and provided career development for the junior faculty. This was possible due to the positive attitude of the junior faculty (organizational readiness) to change and the supportive environment (mentors and trainers) during implementation of the grant. These two factors provided a favorable institutional climate that guaranteed success of the funding goals.
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Affiliation(s)
- Edith K Wakida
- Office of Research Administration, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Clara D Atuhaire
- Office of Research Administration, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Christine K Karungi
- Office of Research Administration, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Samuel Maling
- Department of Psychiatry, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Celestino Obua
- Office of the Vice Chancellor, Mbarara University of Science and Technology, Mbarara, Uganda
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21
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Zimba S, Nutakki A, Chishimba L, Chomba M, Bahouth M, Gottesman RF, Saylor D. Risk factors and outcomes of HIV-associated stroke in Zambia. AIDS 2021; 35:2149-2155. [PMID: 34138769 DOI: 10.1097/qad.0000000000002999] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare risk factors and clinical outcomes between people with HIV (PWH) and HIV-uninfected (HIV-) adults with stroke hospitalized in Zambia. METHODS We retrospectively reviewed charts of all adults admitted to the University Teaching Hospital in Lusaka, Zambia with a clinical diagnosis of stroke between October 2018 and March 2019. Standardized data collection instruments were used to collect demographic, clinical, laboratory and imaging results. Comparison between individuals with and without HIV infection was made using t tests for continuous parametric variables, Wilcoxon rank-sum tests for continuous nonparametric variables, and chi-square analyses for categorical variables. RESULTS Two hundred and seventy-two adults with stroke were admitted of whom 58 (21%) were PWH. Compared with HIV- participants, PWH were younger [(48 ± 14) years versus 62 ± 18) years, P < 0.001]. PWH were less likely to have hypertension (65 versus 83%, P = 0.003) and more likely to have no traditional cerebrovascular risk factors (34 versus 15%, P = 0.01). Deep vein thrombosis (DVT) (4 versus 1%, P = 0.04) was more common during hospitalization amongst PWH but there was no difference in in-hospital mortality (21 versus 23%, P = 0.65). Among PWH with stroke, factors associated with in-hospital mortality were Glasgow Coma Scale (GCS) on admission (7 versus 10, P = 0.046), hypertension (92 versus 59%, P = 0.04) and fever (58 versus 13%, P = 0.003). CONCLUSION This Zambian cohort of PWH and stroke is notable for being significantly younger with fewer traditional stroke risk factors but higher rates of DVT than their HIV-uninfected counterparts. GCS on admission, hypertension and fever were associated with in-hospital mortality.
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Affiliation(s)
- Stanley Zimba
- Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | | | - Lorraine Chishimba
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Mashina Chomba
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
| | - Mona Bahouth
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rebecca F Gottesman
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Deanna Saylor
- Department of Internal Medicine, University Teaching Hospital, Lusaka, Zambia
- Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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22
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Saberi A, Akhondzadeh S, Kazemi S, Kazemi S. Infectious Agents and Stroke: A Systematic Review. Basic Clin Neurosci 2021; 12:427-440. [PMID: 35154584 PMCID: PMC8817172 DOI: 10.32598/bcn.2021.1324.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 04/25/2020] [Accepted: 05/30/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction: A major cause of injury and the second cause of death worldwide is stroke. Among several infectious agents considered as the risk factor of stroke, some pathogens demonstrated stronger robust associations with stroke. Proposing an accurate correlation between infectious microorganisms and stroke provides valuable information for early intervention and control of the infections. Methods: In this study, we searched the literature using the Web of Science, PMC/Medline via PubMed, and Scopus databases up to July 2018 without time and language restrictions. After quality assessment, 16 articles were included in the study. The whole data extraction process was independently conducted by two reviewers. Results: Based on the results of the studies, viruses, such as Hepatitis C virus (HCV), Hepatitis B virus (HBV), Human Immunodeficiency Virus (HIV), Herpes Simplex Virus Type-1, 2 (HSV-1, 2), Varicella-Zoster Virus (VZV or Chickenpox), and West Nile virus (WNV) seem to be common causes of ischemic stroke. Moreover, the association of other microbial categories, such as Streptococcus mutans (in bacteria), Toxocara spp. and Toxoplasma gondii (in parasites), and Rhizopus sp. (in fungi) with stroke was reported. Conclusion: Considering the adverse role of the above-mentioned microorganisms, it is necessary to implement some preventive measures for stroke treatment.
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Affiliation(s)
- Alia Saberi
- Department of Neurology, Neuroscience Research Center, Poursina Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Shahin Akhondzadeh
- Psychiatric Research Center, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Samira Kazemi
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Samaneh Kazemi
- Deputy of Research and Technology, Guilan University of Medical Sciences, Rasht, Iran
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23
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Kroon L, van Zyl DG, Schutte CM, Smit C, Hiesgen J. Risk Factors for Stroke in HIV-Positive and-Negative Patients in Pretoria, South Africa. J Stroke Cerebrovasc Dis 2021; 30:105929. [PMID: 34175577 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105929] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVES Low- to middle-income countries experience a marked rise in cardiovascular diseases, and have the highest incidence of HIV infection. Stroke data in HIV-positive patients is still scarce. This study compares risk factors and types of stroke between HIV-positive and -negative patients in South Africa. MATERIALS AND METHODS We conducted a cross-sectional study at Kalafong Provincial Tertiary Hospital in Pretoria over a 10-month period. All adult patients presenting with an acute stroke were included. RESULTS One hundred and forty consecutive patients with stroke were included, 23% were HIV-positive. The average age in the HIV-positive group was 41 years, compared to 61 years in the HIV-negative group (p < 0.01). Ischemic infarcts occurred in 80.7 and 19.3% were hemorrhagic, with no significant difference between the HIV-positive and -negative group (ischemic: 81% vs 80%; hemorrhagic: 19% vs 20%; p = 0.55). Small vessel infarcts occurred more frequently in HIV-positive patients (25% vs 9.3%; p < 0.02). While 78% of HIV-positive patients presented with concomitant infections, these were found in only 23% of HIV-negative patients (P < 0.001). Hypertension (81% vs 37.5%; p = 0.01) and dyslipidemia (62% vs 38%; p = 0.01) were more prevalent in the HIV-negative patients. Confounding variables were gender and age. Although more than half of the HIV-positive patients were on antiretroviral therapy, the majority (62.5%) showed virological non-suppression. CONCLUSIONS HIV infection occurred in almost one-quarter of stroke patients and was seen more in the younger age group. Small vessel ischemic infarcts and underlying infections were more common in HIV-positive patients. The high number of HIV-positive patients with virological non-suppression is concerning and needs to be addressed.
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Affiliation(s)
- Louis Kroon
- Department of Neurology, University of Pretoria, South Africa
| | - Daniel G van Zyl
- Department of Internal Medicine, University of Pretoria, South Africa.
| | - Clara M Schutte
- Department of Neurology, University of Pretoria, South Africa,.
| | - Christine Smit
- Department of Neurology, University of Pretoria, South Africa,.
| | - Juliane Hiesgen
- Department of Neurology, University of Pretoria, South Africa,.
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24
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Spagnolo-Allende A, Gutierrez J. Role of Brain Arterial Remodeling in HIV-Associated Cerebrovascular Outcomes. Front Neurol 2021; 12:593605. [PMID: 34239489 PMCID: PMC8258100 DOI: 10.3389/fneur.2021.593605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 05/07/2021] [Indexed: 01/11/2023] Open
Abstract
As the life expectancy of people living with HIV (PLWH) on combination antiretroviral therapy (cART) increases, so does morbidity from cerebrovascular disease and neurocognitive disorders. Brain arterial remodeling stands out as a novel investigational target to understand the role of HIV in cerebrovascular and neurocognitive outcomes. We therefore conducted a review of publications in PubMed, EMBASE, Web of Science and Wiley Online Library, from inception to April 2021. We included search terms such as HIV, cART, brain, neuroimmunity, arterial remodeling, cerebrovascular disease, and neurocognitive disorders. The literature shows that, in the post-cART era, PLWH continue to experience an increased risk of stroke and neurocognitive disorders (albeit milder forms) compared to uninfected populations. PLWH who are immunosuppressed have a higher proportion of hemorrhagic strokes and strokes caused by opportunistic infection and HIV vasculopathy, while PLWH on long-term cART have higher rates of ischemic strokes, compared to HIV-seronegative controls. Brain large artery atherosclerosis in PLWH is associated with lower CD4 nadir and higher CD4 count during the stroke event. HIV vasculopathy, a form of non-atherosclerotic outward remodeling, on the other hand, is associated with protracted immunosuppression. HIV vasculopathy was also linked to a thinner media layer and increased adventitial macrophages, suggestive of non-atherosclerotic degeneration of the brain arterial wall in the setting of chronic central nervous system inflammation. Cerebrovascular architecture seems to be differentially affected by HIV infection in successfully treated versus immunosuppressed PLWH. Brain large artery atherosclerosis is prevalent even with long-term immune reconstitution post-cART. HIV-associated changes in brain arterial walls may also relate to higher rates of HIV-associated neurocognitive disorders, although milder forms are more prevalent in the post-cART era. The underlying mechanisms of HIV-associated pathological arterial remodeling remain poorly understood, but a role has been proposed for chronic HIV-associated inflammation with increased burden on the vasculature. Neuroimaging may come to play a role in assessing brain arterial remodeling and stratifying cerebrovascular risk, but the data remains inconclusive. An improved understanding of the different phenotypes of brain arterial remodeling associated with HIV may reveal opportunities to reduce rates of cerebrovascular disease in the aging population of PLWH on cART.
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Affiliation(s)
| | - Jose Gutierrez
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
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25
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Siedner MJ, Bibangambah P, Kim J, Lankowski A, Chang JL, Yang IT, Kwon DS, North CM, Triant VA, Longenecker C, Ghoshhajra B, Peck RN, Sentongo RN, Gilbert R, Kakuhikire B, Boum Y, Haberer JE, Martin JN, Tracy R, Hunt PW, Bangsberg DR, Tsai AC, Hemphill LC, Okello S. Treated HIV Infection and Progression of Carotid Atherosclerosis in Rural Uganda: A Prospective Observational Cohort Study. J Am Heart Assoc 2021; 10:e019994. [PMID: 34096320 PMCID: PMC8477876 DOI: 10.1161/jaha.120.019994] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background Although ≈70% of the world's population of people living with HIV reside in sub-Saharan Africa, there are minimal prospective data on the contributions of HIV infection to atherosclerosis in the region. Methods and Results We conducted a prospective observational cohort study of people living with HIV on antiretroviral therapy >40 years of age in rural Uganda, along with population-based comparators not infected with HIV. We collected data on cardiovascular disease risk factors and carotid ultrasound measurements annually. We fitted linear mixed effects models, adjusted for cardiovascular disease risk factors, to estimate the association between HIV serostatus and progression of carotid intima media thickness (cIMT). We enrolled 155 people living with HIV and 154 individuals not infected with HIV and collected cIMT images at 1045 visits during a median of 4 annual visits per participant (interquartile range 3-4, range 1-5). Age (median 50.9 years) and sex (49% female) were similar by HIV serostatus. At enrollment, there was no difference in mean cIMT by HIV serostatus (0.665 versus 0.680 mm, P=0.15). In multivariable models, increasing age, blood pressure, and non-high-density lipoprotein cholesterol were associated with greater cIMT (P<0.05), however change in cIMT per year was also no different by HIV serostatus (0.004 mm/year for HIV negative [95% CI, 0.001-0.007 mm], 0.006 mm/year for people living with HIV [95% CI, 0.003-0.008 mm], HIV×time interaction P=0.25). Conclusions In rural Uganda, treated HIV infection was not associated with faster cIMT progression. These results do not support classification of treated HIV infection as a risk factor for subclinical atherosclerosis progression in rural sub-Saharan Africa. Registration URL: https://www.ClinicalTrials.gov; Unique identifier: NCT02445079.
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Affiliation(s)
- Mark J. Siedner
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA,Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
| | - Prossy Bibangambah
- Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
| | - June‐Ho Kim
- Department of MedicineHarvard Medical SchoolBostonMA,Department of MedicineBrigham and Women's HospitalBostonMA
| | - Alexander Lankowski
- Department of MedicineUniversity of WashingtonSeattleWA,Vaccine and Infectious Disease DivisionFred Hutchinson Cancer Research CenterSeattleWA
| | - Jonathan L. Chang
- Department of MedicineHarvard Medical SchoolBostonMA,Department of MedicineBrigham and Women's HospitalBostonMA
| | - Isabelle T. Yang
- Department of MedicineGeisel School of Medicine at DartmouthHanoverNH
| | - Douglas S. Kwon
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and HarvardCambridgeMA
| | - Crystal M. North
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | - Virginia A. Triant
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | | | - Brian Ghoshhajra
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | - Robert N. Peck
- Center for Global HealthWeill Cornell Medical CollegeNew YorkNY
| | - Ruth N. Sentongo
- Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
| | - Rebecca Gilbert
- Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | - Bernard Kakuhikire
- Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
| | - Yap Boum
- Epicentre Research BaseMbararaUganda
| | - Jessica E. Haberer
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | | | - Russell Tracy
- Department of Pathology and Laboratory MedicineUniversity of VermontBurlingtonVT
| | - Peter W. Hunt
- Department of MedicineUniversity of CaliforniaSan FranciscoCA
| | | | - Alexander C. Tsai
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA,Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
| | - Linda C. Hemphill
- Department of MedicineHarvard Medical SchoolBostonMA,Departments of Medicine and PsychiatryMassachusetts General HospitalBostonMA
| | - Samson Okello
- Faculty of MedicineMbarara University of Science and TechnologyMbararaUganda
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Namale G, Kamacooko O, Makhoba A, Mugabi T, Ndagire M, Ssanyu P, Ddamulira J, Yperzeele L, Cras P, Ddumba E, Seeley J, Newton R. HIV sero-positivity and risk factors for ischaemic and haemorrhagic stroke in hospitalised patients in Uganda: A prospective-case-control study. PUBLIC HEALTH IN PRACTICE 2021; 2:100128. [PMID: 36101575 PMCID: PMC9461590 DOI: 10.1016/j.puhip.2021.100128] [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: 03/30/2020] [Revised: 03/01/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Objectives We examined HIV sero-positivity and risk factors in patients admitted with ischaemic stroke (IS) and haemorrhagic stroke (HS) in Kampala, Uganda. Study design We conducted a matched case-control study between December 2016 and December 2018 at St Francis Hospital, Nsambya. Methods The study population comprised of stroke cases (adults aged ≥18 years with IS or HS confirmed by neuroimaging) and controls (age- and sex-matched stroke-free adults aged ≥18 years who were recruited from the same hospital as the cases). A comprehensive assessment for sociodemographic, lifestyle and clinical factors was performed using the World Health Organization (WHO) STEP-wise approach to Surveillance (STEPS) for stroke risk factor surveillance. We used conditional logistic regression to identify risk factors associated with IS or HS. Results We enrolled 137 matched case-control pairs; 48 (35%) were men, and the mean ages were 62.4 years (SD ± 14.8) for cases and 61.1 years (SD ± 14.1) for controls. Of stroke patients, 86 (63%) had IS and 51 (37%) had HS. Overall, HIV sero-positivity was 10% among stroke cases versus 7% among controls. HIV sero-positivity was not significantly associated with stroke (unadjusted odds ratio [uOR] = 1.49, 95% confidence interval [CI] 0.59-3.78). A self-reported family history of diabetes mellitus was associated with an increased risk of all stroke (adjusted odds ratio [aOR] = 4.41, 95% CI 1.47-13.2), as well as for IS and HS separately (aOR = 3.66, 95% CI 1.09-12.4 and aOR = 4.99, 95% CI 1.02-24.4, respectively). High blood pressure (≥140/90 mmHg) was associated with an increased risk of all stroke (aOR = 12.3, 95% CI 42-44.1), and this was also true for IS and HS individually (aOR = 6.48, 95% CI 1.15-36.7 and aOR = 5.63, 95% CI 1.74-18.2, respectively). Conclusions No association was found between HIV sero-positivity and stroke occurrence among Ugandan stroke patients. Hypertension and a self-reported family history of diabetes mellitus were significant risk factors for both IS and HS. Interventions to reduce hypertension and diabetes mellitus in the Ugandan population are urgently required. Much larger studies are required to demonstrate if any association exists between HIV and stroke.
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Affiliation(s)
- G. Namale
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda,Corresponding author. MRC/UVRI and LSHTM Uganda Research Unit, P.O Box 49, Entebbe, Uganda.
| | - O. Kamacooko
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
| | - A. Makhoba
- St. Francis Hospital Nsambya Affiliated to Uganda Martyrs University, Kampala, Uganda
| | - T. Mugabi
- St. Francis Hospital Nsambya Affiliated to Uganda Martyrs University, Kampala, Uganda
| | - M. Ndagire
- St. Francis Hospital Nsambya Affiliated to Uganda Martyrs University, Kampala, Uganda
| | - P. Ssanyu
- St. Francis Hospital Nsambya Affiliated to Uganda Martyrs University, Kampala, Uganda
| | - J.B.M. Ddamulira
- School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - L. Yperzeele
- University of Antwerp, Department of Neurology, Antwerp, Belgium
| | - P. Cras
- University of Antwerp, Department of Neurology, Antwerp, Belgium
| | - E. Ddumba
- St. Francis Hospital Nsambya Affiliated to Uganda Martyrs University, Kampala, Uganda
| | - J. Seeley
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda,London School of Hygiene &Tropical Medicine, London, UK
| | - R. Newton
- MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda,University of York, York, UK
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27
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Olum S, Muyingo A, Wilson TL, Demaerschalk BM, Hoxworth JM, Zhang N, Hentz JG, Abdallah A, Kayanja A, Aguilar MI, O'Carroll CB. Stroke Mortality Outcomes in Uganda. J Stroke Cerebrovasc Dis 2021; 30:105661. [PMID: 33684710 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105661] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/15/2020] [Accepted: 02/01/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND AND PURPOSE Stroke outcome data in Uganda is lacking. The objective of this study was to capture 30-day mortality outcomes in patients presenting with acute and subacute stroke to Mbarara Regional Referral Hospital (MRRH) in Uganda. METHODS A prospective study enrolling consecutive adults presenting to MRRH with abrupt onset of focal neurologic deficits suspicious for stroke, from August 2014 to March 2015. All patients had head computed tomography (CT) confirmation of ischemic or hemorrhagic stroke. Data was collected on mortality, morbidity, risk factors, and imaging characteristics. RESULTS Investigators screened 134 potential subjects and enrolled 108 patients. Sixty-two percent had ischemic and 38% hemorrhagic stroke. The mean age of all patients was 62.5 (SD 17.4), and 52% were female. More patients had hypertension in the hemorrhagic stroke group than in the ischemic stroke group (53% vs. 32%, p = 0.0376). Thirty-day mortality was 38.1% (p = 0.0472), and significant risk factors were National Institutes of Health Stroke Scale (NIHSS) score, female sex, anemia, and HIV infection. A one unit increase of the NIHSS on admission increased the risk of death at 30 days by 6%. Patients with hemorrhagic stroke had statistically higher NIHSS scores (p = 0.0408) on admission compared to patients with ischemic stroke, and also had statistically higher Modified Rankin Scale (mRS) scores at discharge (p = 0.0063), and mRS score change from baseline (p = 0.04). CONCLUSIONS Our study highlights an overall 30-day stroke mortality of 38.1% in southwestern Uganda, and identifies NIHSS at admission, female sex, anemia, and HIV infection as predictors of mortality.
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Affiliation(s)
- Sam Olum
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Medicine, Gulu University, Lacor, Uganda.
| | - Anthony Muyingo
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Tony L Wilson
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda.
| | | | | | - Nan Zhang
- Department of Biostatistics, Mayo Clinic, Phoenix, Arizona.
| | - Joseph G Hentz
- Department of Biostatistics, Mayo Clinic, Phoenix, Arizona.
| | - Amir Abdallah
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Neurology, Mayo Clinic, Phoenix, Arizona.
| | - Adrian Kayanja
- Department of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda.
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Abstract
Stroke is a leading cause of disability, dementia and death worldwide. Approximately 70% of deaths from stroke and 87% of stroke-related disability occur in low-income and middle-income countries. At the turn of the century, the most common diseases in Africa were communicable diseases, whereas non-communicable diseases, including stroke, were considered rare, particularly in sub-Saharan Africa. However, evidence indicates that, today, Africa could have up to 2-3-fold greater rates of stroke incidence and higher stroke prevalence than western Europe and the USA. In Africa, data published within the past decade show that stroke has an annual incidence rate of up to 316 per 100,000, a prevalence of up to 1,460 per 100,000 and a 3-year fatality rate greater than 80%. Moreover, many Africans have a stroke within the fourth to sixth decades of life, with serious implications for the individual, their family and society. This age profile is particularly important as strokes in younger people tend to result in a greater loss of self-worth and socioeconomic productivity than in older individuals. Emerging insights from research into stroke epidemiology, genetics, prevention, care and outcomes offer great prospects for tackling the growing burden of stroke on the continent. In this article, we review the unique profile of stroke in Africa and summarize current knowledge on stroke epidemiology, genetics, prevention, acute care, rehabilitation, outcomes, cost of care and awareness. We also discuss knowledge gaps, emerging priorities and future directions of stroke medicine for the more than 1 billion people who live in Africa.
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29
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So-Armah K, Benjamin LA, Bloomfield GS, Feinstein MJ, Hsue P, Njuguna B, Freiberg MS. HIV and cardiovascular disease. Lancet HIV 2020; 7:e279-e293. [PMID: 32243826 PMCID: PMC9346572 DOI: 10.1016/s2352-3018(20)30036-9] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/24/2022]
Abstract
HIV-related cardiovascular disease research is predominantly from Europe and North America. Of the estimated 37·9 million people living with HIV worldwide, 25·6 million live in sub-Saharan Africa. Although mechanisms for HIV-related cardiovascular disease might be the same in all people with HIV, the distribution of cardiovascular disease risk factors varies by geographical location. Sub-Saharan Africa has a younger population, higher prevalence of elevated blood pressure, lower smoking rates, and lower prevalence of elevated cholesterol than western Europe and North America. These variations mean that the profile of cardiovascular disease differs between low-income and high-income countries. Research in, implementation of, and advocacy for risk reduction of cardiovascular disease in the global context of HIV should account for differences in the distribution of traditional cardiovascular disease risk factors (eg, hypertension, smoking), consider non-traditional cardiovascular disease risk factors (eg, access to antiretroviral therapy with more benign cardiovascular disease side effect profiles, indoor air pollution), and encourage the inclusion of relevant risk reduction approaches for cardiovascular disease in HIV-care guidelines. Future research priorities include implementation science to scale up and expand integrated HIV and cardiovascular disease care models, which have shown promise in sub-Saharan Africa; HIV and cardiovascular disease epidemiology and mechanisms in women; and tobacco cessation for people living with HIV.
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Affiliation(s)
- Kaku So-Armah
- Boston University School of Medicine, Boston, MA, USA.
| | - Laura A Benjamin
- UCL Queen Square Institute of Neurology, University College London, London, UK; Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Gerald S Bloomfield
- Duke Global Health Institute, Duke University, Durham, North Carolina, NC, USA
| | | | | | | | - Matthew S Freiberg
- Vanderbilt University Medical Center, Nashville VA Medical Center, VA Tennessee Valley Healthcare System, Nashville, TN, USA
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30
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Boot E, Ekker MS, Putaala J, Kittner S, De Leeuw FE, Tuladhar AM. Ischaemic stroke in young adults: a global perspective. J Neurol Neurosurg Psychiatry 2020; 91:411-417. [PMID: 32015089 DOI: 10.1136/jnnp-2019-322424] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 11/04/2022]
Abstract
Ischaemic stroke at young age is an increasing problem in both developing and developed countries due to rising incidence, high morbidity and mortality and long-term psychological, physical and social consequences. Compared with stroke in older adults, stroke in young adults is more heterogeneous due to the wide variety of possible underlying risk factors and aetiologies. In this review, we will provide an overview of the global variation in the epidemiology of stroke in young adults, with special attention to differences in geography, ethnicity/race and sex, as well as traditional and novel risk factors for early-onset ischaemic stroke, such as air pollution. Understanding global differences is an important prerequisite for better region-specific prevention and treatment of this devastating condition.
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Affiliation(s)
- Esther Boot
- Department of Neurology, Radboud Univerisity Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Centre for Neuroscience, Nijmegen, The Netherlands
| | - Merel Sanne Ekker
- Department of Neurology, Radboud Univerisity Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Centre for Neuroscience, Nijmegen, The Netherlands
| | - Jukka Putaala
- Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
| | - Steven Kittner
- Department of Neurology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Frank-Erik De Leeuw
- Department of Neurology, Radboud Univerisity Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Centre for Neuroscience, Nijmegen, The Netherlands
| | - Anil M Tuladhar
- Department of Neurology, Radboud Univerisity Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Centre for Neuroscience, Nijmegen, The Netherlands
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31
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Bearden DR, Omech B, Rulaganyang I, Sesay SO, Kolson DL, Kasner SE, Mullen MT. Stroke and HIV in Botswana: A prospective study of risk factors and outcomes. J Neurol Sci 2020; 413:116806. [PMID: 32244092 DOI: 10.1016/j.jns.2020.116806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/05/2020] [Accepted: 03/25/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE HIV is associated with an increased risk of stroke, but there are sparse data on risk factors for stroke in people living with HIV in Sub-Saharan African. The goal of this study was to identify HIV-specific stroke characteristics and risk factors among adults in Botswana. METHODS We conducted a prospective cohort study in Gaborone, Botswana from June 2015 to June 2017 comparing risk factors and outcomes among adults with and without HIV admitted for acute stroke. In addition, we conducted a case-control study comparing patients with HIV and stroke to outpatients with HIV and no history of stroke. RESULTS A total of 52 patients with imaging-confirmed acute stroke were enrolled. Stroke patients with HIV were younger than those without HIV (median age 40 vs 54, p = .005). Hypertension was the most common risk factor identified in both HIV+ and HIV- groups, but was more common in patients without HIV (81% vs. 55%, p = .04). Patients with HIV were significantly more likely to have a small-vessel lacunar syndrome compared to patients without HIV (67% vs. 29%, p = .02). In the case-control analysis, patients with HIV and stroke were more likely to have hypertension than stroke-free controls (53% vs. 16%; OR 7.2, 95% CI 1.5-33.8, p = .01), and were more likely to drink alcohol (53% vs. 21%, OR 3.7, 95% CI 1.1-12.1, p = .03). CONCLUSIONS Individuals with HIV present with strokes at younger ages than individuals without HIV. Among those with HIV, hypertension and alcohol use are significant risk factors for stroke.
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Affiliation(s)
- David R Bearden
- Department of Neurology, University of Rochester, Rochester, NY, USA.
| | - Bernard Omech
- Department of Medicine, Lira University, Lira, Uganda
| | | | - Sheikh O Sesay
- Princess Marina Hospital Department of Radiology, Gaborone, Botswana
| | - Dennis L Kolson
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Scott E Kasner
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael T Mullen
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
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32
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Okello S, Amir A, Bloomfield GS, Kentoffio K, Lugobe HM, Reynolds Z, Magodoro IM, North CM, Okello E, Peck R, Siedner MJ. Prevention of cardiovascular disease among people living with HIV in sub-Saharan Africa. Prog Cardiovasc Dis 2020; 63:149-159. [PMID: 32035126 PMCID: PMC7237320 DOI: 10.1016/j.pcad.2020.02.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
As longevity has increased for people living with HIV (PLWH) in the United States and Europe, there has been a concomitant increase in the prevalence of cardiovascular disease (CVD) risk factors and morbidity in this population. Whereas the availability of HIV antiretroviral therapy has resulted in dramatic increases in life expectancy in sub-Saharan Africa (SSA), where over two thirds of PLWH reside, if and how these trends impact the epidemiology of CVD is less clear. In this review, we describe the current state of the science on how both HIV and its treatment impact CVD risk factors and outcomes among PLWH in sub-Saharan Africa, including regional factors (unique to SSA) likely to differentiate these relationships from the global North. We then outline how current regional guidelines address CVD prevention among PLWH and which clinical and structural interventions are best poised to confront the co-epidemics of HIV and CVD in the region. We conclude with a discussion of key research gaps that need to be addressed to optimally develop an actionable public health response.
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Affiliation(s)
- Samson Okello
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Lown Scholars Program, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Medicine, University of Virginia Health Systems, Charlottesville, VA, USA.
| | - Abdallah Amir
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Neurology, Mayo Clinic, Phoenix/Scottsdale, AZ, USA
| | - Gerald S Bloomfield
- Duke Clinical Research Institute, Durham, NC, USA; Duke Global Health Institute, Durham, NC, USA; Duke University Medical Center, Durham, NC, USA
| | - Katie Kentoffio
- Department of Cardiology, University of California San Francisco, San Francisco, CA, USA
| | - Henry M Lugobe
- Department of Obstetrics and Gynecology, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Zahra Reynolds
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Itai M Magodoro
- Departments of Medicine & Diagnostic Radiology, McGill University Health Center, Montreal, QC, Canada; Division of Cardiology, University of Cape Town, Cape Town, South Africa
| | - Crystal M North
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | | | - Robert Peck
- The Center for Global Health, Weill Cornell Medical Center for Global Health, New York, USA; Department of Internal Medicine, Weill Bugando School of Medicine, Mwanza, Tanzania
| | - Mark J Siedner
- Department of Internal Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
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Nguyen I, Kim AS, Chow FC. Prevention of stroke in people living with HIV. Prog Cardiovasc Dis 2020; 63:160-169. [PMID: 32014514 PMCID: PMC7237326 DOI: 10.1016/j.pcad.2020.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/13/2022]
Abstract
In the era of effective antiretroviral therapy (ART), HIV has become a manageable disease marked by an elevated risk of non-AIDS-related comorbidities, including stroke. Rates of stroke are higher in people living with HIV (PLWH) compared with the general population. Elevated stroke risk may be attributable to traditional risk factors, HIV-associated chronic inflammation and immune dysregulation, and possible adverse effects of long-standing ART use. Tailoring stroke prevention strategies for PLWH requires knowledge of how stroke pathogenesis may differ from non-HIV-associated stroke, knowledge of long-term stroke outcomes in HIV, and accurate stroke risk assessment tools. As a result, the approach to primary and secondary stroke prevention in PLWH relies heavily on guidelines developed for the general population, with an emphasis on optimization of traditional vascular risk factors and early initiation of ART. This review summarizes existing evidence on HIV-associated stroke mechanisms and considerations for stroke prevention for PLWH.
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Affiliation(s)
- Ivy Nguyen
- Department of Neurology, University of California, San Francisco, CA, United States of America
| | - Anthony S Kim
- Department of Neurology, University of California, San Francisco, CA, United States of America
| | - Felicia C Chow
- Department of Neurology, University of California, San Francisco, CA, United States of America; Department of Medicine, Division of Infectious Diseases, University of California San Francisco, CA, United States of America.
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Dean O, Buda A, Adams HR, Mwanza-Kabaghe S, Potchen MJ, Mbewe EG, Kabundula PP, Moghaddam SM, Birbeck GL, Bearden DR. Brain Magnetic Resonance Imaging Findings Associated With Cognitive Impairment in Children and Adolescents With Human Immunodeficiency Virus in Zambia. Pediatr Neurol 2020; 102:28-35. [PMID: 31604645 PMCID: PMC7924094 DOI: 10.1016/j.pediatrneurol.2019.08.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 08/24/2019] [Accepted: 08/29/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Cognitive impairment is common in children and adolescents with human immunodeficiency virus (HIV). Brain magnetic resonance imaging (MRI) is a potentially useful tool to investigate the pathophysiology of HIV-associated cognitive impairment and may serve as a biomarker in future clinical trials. There are few published data on brain imaging in children with HIV in sub-Saharan Africa. METHODS Thirty-four perinatally infected subjects with HIV and age-matched HIV-exposed uninfected controls between the ages nine and 17 years were recruited from the Pediatric Center of Excellence in Lusaka, Zambia, as part of the HIV-associated Neurocognitive Disorders in Zambia study. Brain MRI sequences were acquired, and clinical and volumetric assessments were performed. Subjects underwent a comprehensive neuropsychologic battery, and cognitive impairment status was classified using a global deficit score approach. Regression models were used to evaluate relationships between MRI findings and cognitive function. RESULTS We identified cerebrovascular disease in seven of 34 subjects with HIV compared with zero of 17 controls (21% vs 0%, P = 0.04). We also identified decreased total brain volumes (1036 vs 1162 cm3, P = 0.03) and decreased cortical thickness in the right temporal lobes (3.12 vs 3.29 mm; P = 0.01) and right fusiform gyri (3.10 vs 3.25 mm; P = 0.02) of HIV-infected subjects with cognitive impairment. CONCLUSIONS These findings support the hypothesis that brain volumes may be useful biomarkers for cognitive outcomes in children with HIV. Further studies are necessary to investigate mechanisms of cerebrovascular disease and volume loss in children with HIV.
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Affiliation(s)
- Owen Dean
- University of Rochester School of Medicine, Rochester, New York, USA
| | - Alexandra Buda
- University of Rochester School of Medicine, Rochester, New York, USA
| | - Heather R. Adams
- Division of Child Neurology, Department of Neurology, University of Rochester School of Medicine, Rochester, New York, USA
| | | | - Michael J. Potchen
- Department of Radiology, University of Rochester School of Medicine, Rochester, New York, USA
| | - Esau G. Mbewe
- Department of Psychology, University of Zambia, Lusaka, Zambia
| | | | | | - Gretchen L. Birbeck
- Division of Epilepsy, Department of Neurology, Rochester, New York, USA,University of Zambia School of Medicine, Lusaka, Zambia
| | - David R. Bearden
- Division of Child Neurology, Department of Neurology, University of Rochester School of Medicine, Rochester, New York, USA
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35
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Abdallah A, Chang JL, O'Carroll CB, Okello S, Olum S, Acan M, Aden AA, Chow FC, Siedner MJ. Validation of the Intracerebral Hemorrhage Score in Uganda. Stroke 2019; 49:3063-3066. [PMID: 30571425 DOI: 10.1161/strokeaha.118.022057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background and Purpose- Rates of intracerebral hemorrhage (ICH) are estimated to be highest globally in sub-Saharan Africa. However, outcomes of ICH are poorly described and standard prognostic markers for ICH have not been validated in the region. Methods- We enrolled consecutive patients with computed tomography-confirmed ICH at a referral hospital in southwestern Uganda. We recorded demographic, clinical, and radiographic features of ICH, and calculated ICH scores. We fit Poisson regression models with robust variance estimation to determine predictors of case fatality at 30 days. Results- We enrolled 73 individuals presenting with computed tomography-confirmed ICH (mean age 60 years, 45% [33/73] female, and 14% [10/73] HIV-positive). The median ICH score was 2 (interquartile range, 1-3; range, 0-5). Case fatality at 30 days was 44% (32/73; 95% CI, 33%-57%). The 30-day case fatality increased with increasing ICH score of 0, 1, and 5 from 17%, 23%, to 100%, respectively. In multivariable-adjusted models, ICH score was associated with case fatality (adjusted relative risk, 1.48; 95% CI, 1.23-1.78), as were HIV infection (adjusted relative risk, 1.92; 95% CI, 1.07-3.43) and female sex (adjusted relative risk, 2.17; 95% CI, 1.32-3.59). The ICH score moderately improved with the addition of a point each for female sex and HIV serostatus (0.81 versus 0.73). Conclusions- ICH score at admission is a strong prognostic indicator of 30-day case fatality in Uganda. Our results support its role in guiding the care of patients presenting with ICH in the region.
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Affiliation(s)
- Amir Abdallah
- From the Department of Medicine (A.A., S.O., A.A.A., M.J.S.), Mbarara University of Science and Technology, Uganda
| | | | | | - Samson Okello
- Department of Medicine, Gulu University, Uganda (S.O.)
| | - Sam Olum
- From the Department of Medicine (A.A., S.O., A.A.A., M.J.S.), Mbarara University of Science and Technology, Uganda
| | - Moses Acan
- Department of Radiology (M.A.), Mbarara University of Science and Technology, Uganda
| | - Abdirahim Abdi Aden
- From the Department of Medicine (A.A., S.O., A.A.A., M.J.S.), Mbarara University of Science and Technology, Uganda
| | - Felicia C Chow
- Department of Neurology, UCSF School of Medicine, CA (F.C.C.)
| | - Mark J Siedner
- From the Department of Medicine (A.A., S.O., A.A.A., M.J.S.), Mbarara University of Science and Technology, Uganda.,Department of Medicine, Massachusetts General Hospital, Boston (M.J.S.)
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36
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Stroke in HIV. Can J Cardiol 2018; 35:280-287. [PMID: 30825950 DOI: 10.1016/j.cjca.2018.11.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/21/2018] [Accepted: 11/30/2018] [Indexed: 12/26/2022] Open
Abstract
Stroke is a heterogeneous disease in persons living with human immunodeficiency virus (HIV). HIV is thought to increase the risk of stroke through both HIV-related and traditional stroke risk factors, which vary with respect to the patient's age and clinical characteristics. Numerous studies show that detectable viremia and immunosuppression increase the risk of stroke across all ages, whereas traditional risk factors are more common in the aging population with HIV. As persons living with HIV age and acquire traditional stroke risk factors, the prevalence of stroke will likely continue to increase. Large- and small-vessel disease are the most common causes of stroke, although it is important to evaluate for infectious etiology as well. Research regarding the management of stroke in patients with HIV is scant, and recommendations often parallel those for the general population. Treatment of HIV and effective reduction of traditional stroke risk factors is important to reduce the risk of stroke in persons living with HIV. Future research will help elucidate the pathophysiology of HIV and stroke risk, investigate sex differences in stroke risk, and evaluate the safety and benefits of standard stroke preventative measures and HIV-specific interventions in this population.
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Sarfo FS, Opare-Sem O, Agyei M, Akassi J, Owusu D, Owolabi M, Ovbiagele B. Risk factors for stroke occurrence in a low HIV endemic West African country: A case-control study. J Neurol Sci 2018; 395:8-16. [PMID: 30268726 DOI: 10.1016/j.jns.2018.09.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND HIV infection is an emerging vascular risk factor associated with stroke occurrence. The weight of evidence from sub-Saharan Africa in support of this has accrued from countries with high HIV prevalence. Our objective was to assess the contribution of HIV sero-positivity to the occurrence and outcomes of stroke in a West African country with low HIV prevalence. METHODS A case-control study design conducted at a tertiary medical center in Ghana involved in the Stroke Investigative Research & Educational Networks (SIREN) epidemiological study. Stroke cases were adults (aged ≥18 years) with CT or MRI confirmed stroke and stroke-free controls were age-matched and recruited from communities in the catchment areas of cases. Standard instruments were used to assess vascular and lifestyle factors and serological screening for HIV antibodies was conducted for all study participants. Stroke patients were followed for in-patient mortality outcomes. Associations between HIV, demographic and vascular risk factors and stroke occurrence and outcomes were assessed using logistic regression analysis. RESULTS We enrolled 540 stroke cases and 540 control subjects with a mean (± SD) age of 60.8 ± 15.5 years (cases) and 60.0 ± 15.5 (controls). Among stroke cases, the frequency of HIV was 12/540 (2.2%, 95% CI: 1.3% - 3.6%) versus 15/540 (2.8%, 95% CI: 1.7% - 4.6%) among stroke-free controls, p = .70. However, the median (IQR) age of Persons Living with HIV (PLWH) with stroke was significantly lower at 46.5 (40-65.3) years versus 61.0 (50-74) years, p = .03 among HIV- stroke patients. Stroke among PLWHA was predominantly hemorrhagic in 7 out of 12 cases and ischemic in 5 of 12 with notable clustering of established factors such as hypertension, (100%), dyslipidemia, 83.3%, central obesity, 50.0%, diabetes mellitus, 33.3%, cardiac diseases, 8.3% in this group. None of the PLWH with stroke were receiving antiretroviral therapy. CONCLUSION We found no associations between HIV infection and stroke occurrence among Ghanaians. However a clustering of cardio-metabolic factors in the context of HIV may promote stroke occurrence in younger individuals.
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Affiliation(s)
- Fred Stephen Sarfo
- Kwame Nkrumah University of Science & Technology, Kumasi, Ghana; Komfo Anokye Teaching Hospital, Kumasi, Ghana.
| | - Ohene Opare-Sem
- Kwame Nkrumah University of Science & Technology, Kumasi, Ghana; Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Martin Agyei
- Kwame Nkrumah University of Science & Technology, Kumasi, Ghana; Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - John Akassi
- Kwame Nkrumah University of Science & Technology, Kumasi, Ghana; Komfo Anokye Teaching Hospital, Kumasi, Ghana
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