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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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Whiteson HZ, Drogy M, Eickel G, Frishman WH. Pitavastatin in the Prevention of Cardiovascular Disease in People Living with HIV: A Review. Cardiol Rev 2024:00045415-990000000-00191. [PMID: 38294226 DOI: 10.1097/crd.0000000000000646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
HIV is associated with a wide array of pathophysiologic mechanisms that ultimately contribute to mortality. While HIV is traditionally known as a disease that attacks the immune system, it is now established that infection with HIV can cause cardiovascular disease (CVD). Through inflammation, atherogenesis, interactions with antiretroviral therapy/highly-active antiretroviral therapy (ART/HAART), and other mechanisms, HIV is an independent risk factor for the development of CVD. The treatment of the CVD risks associated with HIV is complicated, especially due to interactions with hyperlipidemic drugs and ART/HAART. There is a prompt need for a drug (or drug class) that is known to reduce the risk of CVD, specifically in people living with HIV. Recently, the randomized trial to prevent vascular events in HIV trial evaluated the usage of pitavastatin in preventing major cardiac events in people with HIV, showing a significant reduction in cardiac events among those taking the therapeutic. In this review, we evaluate the mechanisms by which HIV contributes to CVD, and the randomized trial to prevent vascular events in HIV trial, and postulate about future directions of the drug in treating people living with HIV.
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Affiliation(s)
- Harris Z Whiteson
- From the Department of Medicine, New York Medical College, School of Medicine
| | - Maddison Drogy
- From the Department of Medicine, New York Medical College, School of Medicine
| | - Grant Eickel
- NYU Langone Transplant Institute, NYU Grossman School of Medicine, NY
| | - William H Frishman
- From the Department of Medicine, New York Medical College, School of Medicine
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3
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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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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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Ello FN, Soya EK, Kassi NA, Coffie PA, Koaukou GA, Mossou MC, Adama D, Coulibaly I, Ehui E, Tanon A, Eholie SP. Prevalence of severe cardiovascular abnormalities amongst West African HIV-infected patients on antiretroviral therapy followed at a referral HIV centre. S Afr J Infect Dis 2021; 36:187. [PMID: 34485487 PMCID: PMC8378198 DOI: 10.4102/sajid.v36i1.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 11/26/2020] [Indexed: 11/28/2022] Open
Abstract
Background With success and effective long-term antiretroviral treatment (ART), HIV-infected patients live longer and frequently developed non-communicable diseases (NCDs). Few studies have been conducted in low-income countries, particularly in West Africa. Methods We carried out a cross-sectional study in the referral HIV centre of the Service des Maladies Infectieuses et Tropicales (SMIT) in Abidjan. From April to September 2015, we consecutively included HIV-1 infected patients aged 18 years and older, and on ART for a minimum of 12 months. Data were collected using a structured questionnaire, and entered into the centre’s computerised HIV database. Clinical assessment, laboratory tests, electrocardiogram, transthoracic echocardiography and vascular Doppler ultrasound were performed. The main outcome was the prevalence of patients with severe cardiovascular abnormalities (SCA). Univariate and multivariate logistic regressions were used to identify factors associated with SCA. Results Out of 278 patients (median age 46 years, interquartile range [IQR: 41–52]), 74.5% were female. Overall, the median duration of ART was 84 months (IQR: 54–126). One hundred and ninety-nine (71.6%) patients were on first-line ART regimen and 229 (82.4%) were virologically suppressed with a median CD4 count of 511 cells/mm3 (IQR: 347–529). Basically, cardiovascular abnormalities were mainly non-obstructive carotid plaques (19.1%) followed with left ventricular diastolic dysfunction (16.5%). The overall prevalence of SCA in the study population was 7.6% (95% Confidence Interval [95% CI]: 4.7–11.3). The prevalence of SCA 7.6% (95% Confidence Interval [95% CI]: 4.7–11.3). In multivariate analysis, age > 50 years and nadir CD4 count > 200 cells/mm3 were significant predictors of SCA. Conclusion The prevalence of SCA is high in West African HIV-treated patients. Given the high mortality associated with cardiovascular diseases in the general population, refining disease preventive strategies in HIV-positive subjects is essential to continue prolonging their life.
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Affiliation(s)
- Frederic N Ello
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Esaie K Soya
- Institut de Cardiologie d'Abidjan, Abidjan, Côte d'Ivoire
| | - N'douba A Kassi
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Patrick A Coffie
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Gisèle A Koaukou
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Melaine C Mossou
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Doumbia Adama
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | | | - Eboi Ehui
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Aristophane Tanon
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
| | - Serge P Eholie
- Département de Dermatologie-Infectiologie, Unité de Formation et de Recherche des Sciences Médicales, Université Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.,Service des Maladies Infectieuses et Tropicales, Centre Hospitalier Universitaire de Treichville, Abidjan, Côte d'Ivoire
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van Niekerk SM, Inglis-Jassiem G, Kamalakannan S, Fernandes S, Webster J, English R, Smythe T, Louw QA. Achieving universal health coverage for people with stroke in South Africa: protocol for a scoping review. BMJ Open 2020; 10:e041221. [PMID: 33046479 PMCID: PMC7552861 DOI: 10.1136/bmjopen-2020-041221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Stroke is the second most common cause of death after HIV/AIDS and a significant health burden in South Africa. The extent to which universal health coverage (UHC) is achieved for people with stroke in South Africa is unknown. Therefore, a scoping review to explore the opportunities and challenges within the South African health system to facilitate the achievement of UHC for people with stroke is warranted. METHODS AND ANALYSIS The scoping review will follow the approach recommended by Levac, Colquhoun and O'Brien, which includes five steps: (1) identifying the research question, (2) identifying relevant studies, (3) selecting the studies, (4) charting the data, and (5) collating, summarising and reporting the results. Health Systems Dynamics Framework and WHO Framework on integrated people-centred health services will be used to map, synthesise and analyse data thematically. ETHICS AND DISSEMINATION Ethical approval is not required for this scoping review, as it will only include published and publicly available data. The findings of this review will be published in an open-access, peer-reviewed journal and we will develop an accessible summary of the results for website posting and stakeholder meetings.
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Affiliation(s)
- Sjan-Mari van Niekerk
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - Gakeemah Inglis-Jassiem
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - Sureshkumar Kamalakannan
- SACDIR, Public Health Foundation of India, Gurgaon, India
- International Center for Evidence in Disability, London School of Hygiene and Tropical Medicine, London, UK
| | - Silke Fernandes
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Jayne Webster
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, Stellenbosch University, Cape Town, South Africa
| | - Rene English
- Division of Health Systems and Public Health, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, London, UK
| | - Tracey Smythe
- International Center for Evidence in Disability, London School of Hygiene and 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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7
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Schaefer JH, Stephan C, Foerch C, Pfeilschifter W. Ischemic stroke in human immunodeficiency virus-positive patients: An increasingly age-related comorbidity? Eur Stroke J 2020; 5:252-261. [PMID: 33072879 DOI: 10.1177/2396987320927672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 04/28/2020] [Indexed: 11/15/2022] Open
Abstract
Introduction The global incidence of ischemic stroke among patients with human immunodeficiency virus is increasing. The aim of this controlled case analysis was to study patient characteristics, stroke etiologies, and risk factors in human immunodeficiency virus-positive patients in a medical system with easy access to antiretroviral therapies. Patients and methods We conducted a retrospective, observational study of human immunodeficiency virus-positive patients treated in our stroke unit and outpatient clinic in Germany between 2012 and 2018. A control group of all patients treated for acute ischemic stroke in 2018 was used to elicit possible differences in stroke localization, etiology, and distribution of risk factors. Results Out of 3615 patients with an acute ischemic stroke, 24 (0.7%) were newly or previously diagnosed as human immunodeficiency virus-positive. Strokes in this cohort were caused by large-vessel disease (37.5%), small-vessel disease (20.8%), cryptogenic-embolism (20.8%), vasculitis (16.7%), and cardio-embolism (4.2%). Large-vessel disease-related strokes were more often located in the posterior circulation (77.8%). Compared to the control group, cardio-embolic strokes were less and vasculitis and large-vessel disease more frequent. Human immunodeficiency virus-positive patients were younger at stroke onset (53.7 ± 12.8 vs. 70.2 ± 14.6 years, p = 0.05). Discussion Although the prevalence of human immunodeficiency virus-infection among patients treated for acute ischemic strokes appears low, this collective merits special attention due to a high burden of potentially modifiable risk factors and vasculitis. Conclusion Compared to previous studies, age at stroke onset was one of the highest, supporting the hypothesis that as antiretroviral therapy increases the life expectancy of people living with HIV/AIDS, they will be increasingly affected by cardiovascular disease. Human immunodeficiency virus-related cerebral vasculitis was associated with high mortality (75%).
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Affiliation(s)
- Jan H Schaefer
- Department of Neurology, Goethe University, Frankfurt am Main, Germany
| | - Christoph Stephan
- Department of Internal Medicine, Infectious Diseases Division, Goethe University, Frankfurt am Main, Germany
| | - Christian Foerch
- Department of Neurology, Goethe University, Frankfurt am Main, Germany
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8
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Hartley T, Burger M, Esterhuizen TM, Inglis-Jassiem G. Functional outcome of stroke inpatients according to human immunodeficiency virus status: A feasibility study. Afr J Disabil 2020; 9:618. [PMID: 32284924 PMCID: PMC7136685 DOI: 10.4102/ajod.v9i0.618] [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: 02/01/2019] [Accepted: 01/27/2020] [Indexed: 11/24/2022] Open
Abstract
Background Stroke in human immunodeficiency virus positive (HIV+) individuals is becoming an increasing concern. Being significantly younger than typical stroke patients, the impact of functional challenges on quality of life and burden on society becomes more eminent. Objectives This feasibility study aims to determine the requirements for a large descriptive cohort, to adequately describe the functional outcome of stroke patients with varying HIV status. Method All stroke patients meeting the inclusion criteria were recruited over a 6-month period at a South African inpatient rehabilitation centre. Data were collected on admission and discharge using outcome measures including the Barthel Index (BI), Berg Balance Scale (BBS) and the use of assistive devices used to describe independence with activities of daily living (ADL), mobility and safety post-stroke. Statistical analysis was performed using Stata version 14.2. Results The feasibility study identified appropriate procedures and barriers to a successful study in addition to describing preliminary data on participant demographics, relevant medical history and functional outcomes post-stroke. Limitations that affected feasibility included minimal recruitment sites, length of data collection period, timely communication of participant discharge plans and dates, and confirmation of participant HIV status. An appropriate comparison between sub-groups could not be made because of disproportionate group sizes, median age differences and no assessor blinding. Conclusion To increase generalisability and the understanding of the unique HIV+ stroke profile, multiple recruitment sites, longer data collection periods, assessor blinding and age-matched groups with HIV status confirmation are recommended.
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Affiliation(s)
- Tasneem Hartley
- Division of Physiotherapy, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Marlette Burger
- Division of Physiotherapy, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tonya M Esterhuizen
- Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Gakeemah Inglis-Jassiem
- Division of Physiotherapy, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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9
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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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10
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Chiasakul T, De Jesus E, Tong J, Chen Y, Crowther M, Garcia D, Chai‐Adisaksopha C, Messé SR, Cuker A. Inherited Thrombophilia and the Risk of Arterial Ischemic Stroke: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2019; 8:e012877. [PMID: 31549567 PMCID: PMC6806047 DOI: 10.1161/jaha.119.012877] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/04/2019] [Indexed: 01/01/2023]
Abstract
Background Inherited thrombophilias are well-established predisposing factors for venous thromboembolism, but their role in arterial thrombosis, such as arterial ischemic stroke, remains uncertain. We aimed to evaluate the association between inherited thrombophilia (factor V Leiden, prothrombin G20210A mutation, protein C deficiency, protein S deficiency, and antithrombin deficiency) and risk of arterial ischemic stroke in adults. Methods and Results We searched PubMed, EMBASE, and Cochrane Library Databases from inception to December 31, 2018. We included case-control or cohort studies of adults reporting the prevalence of inherited thrombophilias in those with arterial ischemic stroke and subjects without arterial ischemic stroke. Two reviewers (T.C., E.D.) independently searched the literature and extracted data. Pooled odds ratios (ORs) and 95% CIs were calculated using random-effects model. We identified 68 eligible studies, which collectively enrolled 11 916 stroke patients and 96 057 controls. The number of studies reporting factor V Leiden, prothrombin G20210A mutation, protein C deficiency, protein S deficiency, and antithrombin deficiency were 56, 45, 15, 17, and 12, respectively. Compared with controls, patients with arterial ischemic stroke were significantly more likely to have the following inherited thrombophilias: factor V Leiden (OR, 1.25; 95% CI, 1.08-1.44; I2=0%), prothrombin G20210A mutation (OR, 1.48; 95% CI, 1.22-1.80; I2=0%), protein C deficiency (OR, 2.13; 95% CI, 1.16-3.90; I2=0%), and protein S deficiency (OR, 2.26; 95% CI, 1.34-3.80; I2=8.8%). Statistical significance was not reached for antithrombin deficiency (OR, 1.25; 95% CI, 0.58-2.67; I2=8.8%). Conclusions Inherited thrombophilias (factor V Leiden, prothrombin G20210A mutation, protein C deficiency, and protein S deficiency) are associated with an increased risk of arterial ischemic stroke in adults. The implications of these findings with respect to clinical management of patients with ischemic stroke require further investigation.
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Affiliation(s)
- Thita Chiasakul
- Division of HematologyDepartment of MedicineFaculty of MedicineChulalongkorn University and King Chulalongkorn Memorial HospitalThai Red Cross SocietyBangkokThailand
| | | | - Jiayi Tong
- Department of Biostatistics and EpidemiologyPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
| | - Yong Chen
- Department of Biostatistics and EpidemiologyPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
| | - Mark Crowther
- Department of MedicineMcMaster UniversityHamiltonOntarioCanada
| | - David Garcia
- Department of MedicineUniversity of Washington School of MedicineSeattleWA
| | | | - Steven R. Messé
- Department of NeurologyPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
| | - Adam Cuker
- Department of MedicinePerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
- Department of Pathology and Laboratory MedicinePerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
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Incidence and Properties of Neurologic Disorders Recovered from Iranian Patients with HIV Infection: A Case Series. ARCHIVES OF NEUROSCIENCE 2019. [DOI: 10.5812/ans.81981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
: Neurological conditions associated with HIV remain major contributors to morbidity and mortality and are increasingly recognized in the aging population on long-standing combination antiretroviral therapy (cART). Importantly, growing evidence shows that the central nervous system (CNS) may serve as a reservoir for viral replication, which has major implications for HIV eradication strategies. Although there has been major progress in the last decade in our understanding of the pathogenesis, burden, and impact of neurological conditions associated with HIV infection, significant scientific gaps remain. In many resource-limited settings, antiretrovirals considered second or third line in the United States, which carry substantial neurotoxicity, remain mainstays of treatment, and patients continue to present with severe immunosuppression and CNS opportunistic infections. Despite this, increased global access to cART has coincided with an aging HIV-positive population with cognitive sequelae, cerebrovascular disease, and peripheral neuropathy. Further neurological research in low-income and middle-income countries (LMICs) is needed to address the burden of neurological complications in HIV-positive patients, particularly regarding CNS viral reservoirs and their effects on eradication.
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Khare S, Kushwaha R, Kumar A, Venkatesh V, Reddy HD, Jain M, Yusuf M, Singh US. Prothrombotic state in HIV: A study on protein C, protein S, homocysteine and correlation with CD4 counts. Indian J Med Microbiol 2018; 36:201-206. [PMID: 30084411 DOI: 10.4103/ijmm.ijmm_15_414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Introduction Human immunodeficiency virus (HIV) may result in variable haematological manifestations. Thrombotic events are more common among HIV-infected persons than the general population, possibly due to the increased inflammatory/hypercoagulable state and presence of concurrent comorbidities. Aims and Objectives (1) Screen for coagulation abnormalities in HIV-infected patients. (2) Detect certain prothrombotic factors such as deficiency of protein C and protein S and elevation of homocysteine as possible precursors of coagulation defects in HIV patients. (3) Correlation of coagulation abnormalities with CD4 counts. Methods A pilot study of 1-year duration conducted in the Department of Pathology in collaboration with ART centre, KGMU Lucknow. All diagnosed HIV-seropositive patients (n = 30) who were not taking Vitamin K, antithrombotic and antiplatelet drugs including aspirin, oral contraceptives and not having known protein C/S deficiency were included in the present study as cases. Apart from this, 30 age- and sex-matched healthy individuals were also included in the present study. Assessment of the bleeding time, prothrombin time and activated partial thromboplastin time, complete blood count was done. Protein C and S were measured by calorimetric assay. Serum homocysteine was measured by the semi-automated method. CD4 count was done by flow cytometry. Results The findings of the present study suggest a relationship between HIV, its complications and thrombosis. The HIV-seropositive patients have reduced levels of haemoglobin, CD4 counts, platelet counts, mean platelet volume, protein C and S activity as compared to the healthy individuals. Thrombophilic abnormality in the form of hyperhomocysteinaemia is more frequent in HIV-infected patients. All these parameters have a definite correlation with CD4 count.
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Affiliation(s)
- Swati Khare
- Department of Pathology, K.G.M.U, Lucknow, Uttar Pradesh, India
| | - Rashmi Kushwaha
- Department of Pathology, K.G.M.U, Lucknow, Uttar Pradesh, India
| | - Ashutosh Kumar
- Department of Pathology, K.G.M.U, Lucknow, Uttar Pradesh, India
| | - Vimala Venkatesh
- Department of Microbiology, K.G.M.U, Lucknow, Uttar Pradesh, India
| | | | - Mili Jain
- Department of Pathology, K.G.M.U, Lucknow, Uttar Pradesh, India
| | - Mohd Yusuf
- Department of Pathology, K.G.M.U, Lucknow, Uttar Pradesh, India
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Mayne ES, Mayne ALH, Louw SJ. Pathogenic factors associated with development of disseminated intravascular coagulopathy (DIC) in a tertiary academic hospital in South Africa. PLoS One 2018; 13:e0195793. [PMID: 29649339 PMCID: PMC5896996 DOI: 10.1371/journal.pone.0195793] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 03/29/2018] [Indexed: 12/30/2022] Open
Abstract
Introduction Disseminated intravascular coagulopathy (DIC) is a thrombotic microangiopathy arising from consumption of both coagulation factors and platelets. DIC is triggered by a number of clinical conditions including severe infection, trauma and obstetric complications. Early diagnosis and treatment of the underlying condition is paramount. A high clinical index of suspicion is needed to ensure that patients at risk of developing DIC are appropriately investigated. Methods In order to establish the clinical conditions most frequently associated with DIC, we reviewed all DIC screens received at a tertiary hospital in Johannesburg, South Africa over a 1 year period. Results The commonest clinical condition associated with DIC in our population was infection with 84% of patients infected with an identified pathogen. The most frequently diagnosed pathogen was HIV followed by Mycobacterium tuberculosis and other bacterial infections. In the majority of cases, bacteria were isolated from blood cultures. In 47 patients, HIV was the only pathogen which could be isolated. A relative risk ratio of 2.73 and an odds ratio of 29.97 was attributed to HIV for development of a DIC. A malignancy was present in 51 of the patients of which approximately 60% had co-existing infection. No cause could be attributed in 30 patients. Conclusion Infection was identified in the majority of the patients diagnosed with DIC in this study. HIV showed the highest relative risk ratio of all pathogens although previous studies have not suggested that HIV was strongly associated with DIC. In almost half of the HIV infected patients, there was no other pathogen isolated despite extensive investigation. This suggests that HIV has a strong association with the development of DIC, warranting further research into the relationship between HIV and disseminated microvascular thrombosis.
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Affiliation(s)
- Elizabeth S. Mayne
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Service, Johannesburg, South Africa
- * E-mail:
| | - Anthony L. H. Mayne
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Susan J. Louw
- Department of Molecular Medicine and Haematology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Service, Johannesburg, South Africa
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