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Schwarz J, Gertzen M, Rabenstein A, Straßburger M, Horstmann A, Pogarell O, Rüther T, Karch S. What Chemsex does to the brain - neural correlates (ERP) regarding decision making, impulsivity and hypersexuality. Eur Arch Psychiatry Clin Neurosci 2024:10.1007/s00406-024-01856-2. [PMID: 38969754 DOI: 10.1007/s00406-024-01856-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 06/17/2024] [Indexed: 07/07/2024]
Abstract
Chemsex describes the use of specific substances (methamphetamine, GHB/GBL, mephedrone, ketamine) which initiate or enhance sexual experiences and is mainly prevalent among men who have sex with men. Many Chemsex users experience somatic complications (for example sexually transmitted diseases) and sometimes adverse sociological, psychological, and neurological symptoms, such as depression, impulse control disorders or hypersexuality. Changes in impulsivity and deficits in executive functions have demonstrated to be associated with addiction and impulse control disorders as well as frontal brain dysfunction and behavioral control deficits. This study aims to explore the effects of neurophysiological correlates of inhibition and decision making in Chemsex users with an EEG paradigm using event-related potentials (N2, P3). 15 Chemsex users and 14 matched control subjects, all of them men who have sex with man, participated in an auditory Go/NoGo/Voluntary Selection EEG paradigm. In addition, clinical data (e.g. regarding depression), demographic information as well as measures of well-being and sexual behavior were collected. The results demonstrated that clinical symptoms, hypersexuality, and sexual risk behavior were more pronounced in Chemsex users compared to non-users. P3 amplitudes did not differ significantly between groups. However, the Chemsex users showed decreased electrophysiological N2 responses in fronto-central brain regions during decision-making, indicating compromised executive function and inhibitory control. The observed impairments may lead to increased risk behavior regarding drug abuse and hypersexuality. Understanding the neurobiological mechanisms can contribute to targeted interventions in order to mitigate the negative consequences of engaging in Chemsex and improve general well-being.
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Affiliation(s)
- Johanna Schwarz
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany.
| | - Marcus Gertzen
- Department of Psychiatry, Psychotherapy, and Psychosomatics, Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Andrea Rabenstein
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
| | - Moritz Straßburger
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
| | - Alana Horstmann
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
| | - Oliver Pogarell
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
| | - Tobias Rüther
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
| | - Susanne Karch
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Germany
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Namagga JK, Rukundo GZ, Batwala V, Niyonzima V, Nantongo H, Nambozi G. Healthcare Workers' Perspectives on the Utilization of the International HIV Dementia Scale for the Screening HIV-Associated Neurocognitive Disorders: A Qualitative Study at TASO Centres in Central and Southwestern Uganda. HIV AIDS (Auckl) 2024; 16:229-243. [PMID: 38827783 PMCID: PMC11144000 DOI: 10.2147/hiv.s444668] [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: 10/13/2023] [Accepted: 05/24/2024] [Indexed: 06/05/2024] Open
Abstract
Introduction HIV-associated neurocognitive disorders (HAND) are becoming a significant public health concern in the continuum of human immune virus (HIV) treatment. These disorders range from subtle cognitive impairments to severe dementia. Despite many early-stage HAND cases being asymptomatic, healthcare workers (HCWs) rarely perform routine neurocognitive assessments. This leads to a high number of unrecognized cases and increases the risk of HAND among people living with HIV (PLWH). Material and Methods We aimed to explore HCWs' perspectives on integrating the International HIV Dementia Scale (IHDS) into routine care for screening HAND at The AIDS Support Organization (TASO) centres in central and southwestern Uganda. Results We conducted five focus group discussions with 37 HCWs from five TASO centres. Thematic analysis revealed eight key theme: 1) Impaired brain function, 2) Changes in activities of daily living, 3) Promotion of quality care perspectives, 4) Tool applicable and user-friendly, 5) Client increased self-awareness and self-confidence, 6) Integration of IHDS into routine HIV care, 7) Uncertainty about IHDS use, and 8) Continuous training for HCWs. Conclusion As PLWH enjoy longer and healthier lives, their risk for HAND increases, potentially affecting their quality of life. The use of the IHDS has raised awareness among HCWs and improved decision-making through cognitive assessments, emphasizing it value in PLWH. We recommend a prospective study to assess the long-term outcomes and efficacy of increased HAND screening. Furthermore, integrating a HAND screening module into the consolidated HIV guidelines is recommended to enhance its relevance.
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Affiliation(s)
- Jane Kasozi Namagga
- Department of Nursing, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Godfrey Zari Rukundo
- Department of Psychiatry, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Vincent Batwala
- Department of Community Health, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Vallence Niyonzima
- Department of Nursing, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Hanifah Nantongo
- Department of Nursing, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Grace Nambozi
- Department of Nursing, Mbarara University of Science and Technology, Mbarara, Uganda
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Dantuluri ML, Rubin LH, Manabe YC, Moore RD, Althoff KN. Selection of cognitive impairment screening tools for longitudinal implementation in an HIV clinical care setting. AIDS Care 2023; 35:1619-1627. [PMID: 36803322 PMCID: PMC10403372 DOI: 10.1080/09540121.2023.2165614] [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: 06/03/2022] [Accepted: 12/13/2022] [Indexed: 02/23/2023]
Abstract
To address and slow the increasing burden of cognitive impairment in people surviving to older ages with HIV requires longitudinal monitoring of cognition. We conducted a structured literature review to identify peer-reviewed studies employing validated cognitive impairment screening tools in adult populations of people with HIV. We identified three key criteria for selection and ranking of a tool: (a) strength of validity of the tool; (b) acceptability and feasibility of the tool; (c) ownership of the data from the assessment. From our structured review of 105, 29 studies met our inclusion criteria, within which 10 cognitive impairment screening measurement tools were validated in a population of people with HIV. The BRACE, NeuroScreen and NCAD tools were ranked highly when compared with the other seven tools. Additionally, patient population and clinical setting characteristics (such as availability of quiet space, timing of assessment, security of electronic resources, and ease of linkage to electronic health records) were included in our framework for selection of tools. Numerous validated cognitive impairment screening tools are available to monitor for cognitive changes in the HIV clinical care setting, detecting opportunities for earlier intervention to reduce cognitive decline and preserve quality of life.
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Affiliation(s)
- Meghana L Dantuluri
- Department of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Leah H Rubin
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yukari C Manabe
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University, Baltimore, MD, USA
| | - Richard D Moore
- Department of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Keri N Althoff
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Ahmed MH, Ahmed F, Abu-Median AB, Panourgia M, Owles H, Ochieng B, Ahamed H, Wale J, Dietsch B, Mital D. HIV and an Ageing Population-What Are the Medical, Psychosocial, and Palliative Care Challenges in Healthcare Provisions. Microorganisms 2023; 11:2426. [PMID: 37894084 PMCID: PMC10608969 DOI: 10.3390/microorganisms11102426] [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: 08/29/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
The continuing increase in patient numbers and improvement in healthcare provisions of HIV services in the UK, alongside the effectiveness of combined antiretroviral therapy (cART), has resulted in increasing numbers of the ageing population among people living with HIV (PLWH). It is expected that geriatricians will need to deal with many older people living with HIV (OPLWH) as life expectancy increases. Therefore, geriatric syndromes in OPLWH will be similar to the normal population, such as falls, cognitive decline, frailty, dementia, hypertension, diabetes and polypharmacy. The increase in the long-term use of cART, diabetes, dyslipidaemia and hypertension may lead to high prevalence of cardiovascular disease (CVD). The treatment of such conditions may lead to polypharmacy and may increase the risk of cART drug-drug interactions. In addition, the risk of developing infection and cancer is high. OPLWH may develop an early onset of low bone mineral density (BMD), osteoporosis and fractures. In this review, we have also provided potential psychosocial aspects of an ageing population with HIV, addressing issues such as depression, stigma, isolation and the need for comprehensive medical and psychosocial care through an interdisciplinary team in a hospital or community setting. OPLWH have a relatively high burden of physical, psychological, and spiritual needs and social difficulties, which require palliative care. The holistic type of palliative care that will improve physical, emotional and psychological wellbeing is discussed in this review.
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Affiliation(s)
- Mohamed H. Ahmed
- Department of Medicine and HIV Metabolic Clinic, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Fatima Ahmed
- Tele-Geriatric Research Fellowship, Geriatric Division, Family Medicine Department, Michigan State University, East Lansing, MI 48824, USA
| | - Abu-Bakr Abu-Median
- Leicester School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester LE1 9BH, UK
| | - Maria Panourgia
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Henry Owles
- Department of Geriatric Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Bertha Ochieng
- Leicester School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester LE1 9BH, UK
| | - Hassan Ahamed
- Tele-Geriatric Research Fellowship, Geriatric Division, Family Medicine Department, Michigan State University, East Lansing, MI 48824, USA
| | - Jane Wale
- Department of Palliative Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Benjamin Dietsch
- Department of Palliative Medicine, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
| | - Dushyant Mital
- Department of HIV and Blood Borne Virus, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes MK6 5LD, UK
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Lam JO, Hou CE, Gilsanz P, Lee C, Lea AN, Satre DD, Silverberg MJ. Undiagnosed Cognitive Impairment and Impact on Instrumental Activities of Daily Living Among People With HIV Infection in Primary Care. Open Forum Infect Dis 2023; 10:ofad284. [PMID: 37342311 PMCID: PMC10279416 DOI: 10.1093/ofid/ofad284] [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: 02/17/2023] [Accepted: 05/18/2023] [Indexed: 06/22/2023] Open
Abstract
Background Little is known about the prevalence of undiagnosed cognitive impairment and its impact on instrumental activities of daily living (IADL) among people with HIV (PWH) in primary care. Methods PWH were recruited from an integrated health care setting in the United States. PWH were eligible for recruitment if they were ≥50 years old, taking antiretroviral therapy (ie, ≥1 antiretroviral therapy [ART] prescription fill in the past year), and had no clinical diagnosis of dementia. Participants completed a cognitive screen (St. Louis University Mental Status exam) and a questionnaire on IADL (modified Lawton-Brody). Results Study participants (n = 47) were mostly male (85.1%), 51.1% White, 25.5% Black, 17.0% Hispanic, and the average age (SD) was 59.7 (7.0) years. Overall, 27 (57.5%) participants were categorized as cognitively normal, 17 (36.2%) as having mild cognitive impairment, and 3 (6.4%) as having possible dementia. Of the 20 participants with mild cognitive impairment or possible dementia, 85.0% were men, the average age (SD) was 60.4 (7.1) years; 45.0% were White, 40.0% were Black, 10.0% were Hispanic, and 30.0% reported difficulty with at least 1 IADL. Most (66.7%) attributed difficulty with IADL primarily (33.3%) or in part (33.3%) to cognitive problems. Conclusions Undiagnosed cognitive impairment is frequent among ART-treated PWH, with possible elevated risk among Black PWH, and may be accompanied by difficulty with IADL. Efforts are needed to optimize identification of factors contributing to cognitive and IADL difficulties among ART-treated PWH in primary care.
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Affiliation(s)
- Jennifer O Lam
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Craig E Hou
- South San Francisco Medical Center, Kaiser Permanente Northern California, South San Francisco, California, USA
| | - Paola Gilsanz
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Catherine Lee
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Alexandra N Lea
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Derek D Satre
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
- Department of Psychiatry and Behavioral Sciences, Weill Institute for Neurosciences, University of California, San Francisco, California, USA
| | - Michael J Silverberg
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
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Spies G, Deist M, Suliman S, Seedat S. Screening for HIV-associated neurocognitive impairment: Development and validation of an abbreviated neuropsychological test battery for use in South African clinical settings. Neuropsychology 2023; 37:166-180. [PMID: 36442008 PMCID: PMC9992844 DOI: 10.1037/neu0000872] [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: 11/30/2022] Open
Abstract
BACKGROUND The HIV Neurobehavioral Research Center International Neurobehavioral Battery is a culturally valid battery sensitive to the neurocognitive (NC) effects of HIV-infection. However, its lengthy administration time makes the battery impractical in resource-limited settings, like South Africa, which are often faced with an overwhelming disease burden, a lack of neurological and neuropsychological (NP) expertise, and staff shortages. The present study therefore sought to develop an abbreviated version of the HNRC Battery and validate this battery in a sample of people with HIV (PWH) in South Africa. OBJECTIVE The present study therefore sought to develop an abbreviated version of the HNRC battery and validate this battery in a sample of people with HIV (PWH) in South Africa. METHOD Six measures were selected based on the NC test performances of 103 HIV-positive and 135 HIV-negative South African adults. For the validation, a subgroup of 103 PWH completed the full version of the battery, while the other subgroup of 52 PWH completed only the abbreviated version. Deficit scores of each participant were calculated. These scores were used as the gold standard against which the abbreviated battery was compared. RESULTS There was a reduction of 81% in administration time when compared to the full version of the battery. The abbreviated battery demonstrated good sensitivity (75.0%) and excellent specificity (94.9%) when compared with the full version. The abbreviated battery showed good diagnostic accuracy in identifying NC impairment in an HIV-positive South African sample with a significant reduction in administration time, making it a more practical option in busy South African clinic settings. CONCLUSION The results of this study may facilitate the growth of neuroAIDS research and aid initial identification of HIV-related NC impairment in resource-constrained settings. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Georgina Spies
- NRF/DSI South African Research Chair in PTSD (SARChI), Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
- SAMRC Genomics of Brain Disorders Unit, Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
| | - Melanie Deist
- NRF/DSI South African Research Chair in PTSD (SARChI), Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
| | - Sharain Suliman
- NRF/DSI South African Research Chair in PTSD (SARChI), Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
| | - Soraya Seedat
- NRF/DSI South African Research Chair in PTSD (SARChI), Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
- SAMRC Genomics of Brain Disorders Unit, Department of Psychiatry, Stellenbosch University, Cape Town, South Africa
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Cornea A, Lata I, Simu M, Rosca EC. Assessment and Diagnosis of HIV-Associated Dementia. Viruses 2023; 15:v15020378. [PMID: 36851592 PMCID: PMC9966987 DOI: 10.3390/v15020378] [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: 11/27/2022] [Revised: 01/11/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The modern combined antiretroviral treatment (cART) for human immunodeficiency virus (HIV) infection has substantially lowered the incidence of HIV-associated dementia (HAD). The dominant clinical features include deficits in cognitive processing speed, concentration, attention, and memory. As people living with HIV become older, with high rates of comorbidities and concomitant treatments, the prevalence and complexity of cognitive impairment are expected to increase. Currently, the management of HAD and milder forms of HAND is grounded on the best clinical practice, as there is no specific, evidence-based, proven intervention for managing cognitive impairment. The present article acknowledges the multifactorial nature of the cognitive impairments found in HIV patients, outlining the current concepts in the field of HAD. Major areas of interest include neuropsychological testing and neuroimaging to evaluate CNS status, focusing on greater reliability in the exclusion of associated diseases and allowing for earlier diagnosis. Additionally, we considered the evidence for neurological involvement in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the impact of the coronavirus (COVID-19) pandemic, with wider consequences to population health than can be attributed to the virus itself. The indirect effects of COVID-19, including the increased adoption of telehealth, decreased access to community resources, and social isolation, represent a significant health burden, disproportionately affecting older adults with dementia who have limited social networks and increased functional dependence on the community and health system. This synopsis reviews these aspects in greater detail, identifying key gaps and opportunities for researchers and clinicians; we provide an overview of the current concepts in the field of HAD, with suggestions for diagnosing and managing this important neurological complication, which is intended to be applicable across diverse populations, in line with clinical observations, and closely representative of HIV brain pathology.
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Affiliation(s)
- Amalia Cornea
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, 300041 Timisoara, Romania
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca No. 10, 300736 Timisoara, Romania
| | - Irina Lata
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca No. 10, 300736 Timisoara, Romania
| | - Mihaela Simu
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, 300041 Timisoara, Romania
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca No. 10, 300736 Timisoara, Romania
| | - Elena Cecilia Rosca
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, 300041 Timisoara, Romania
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca No. 10, 300736 Timisoara, Romania
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Asiedu N, Mwesiga EK, Akena D, Morrison C, Gumikiriza-Onoria JL, Nanteza A, Nakku J, Koen N, Nakasujja N, Ssembajjwe W, Ferraris CM, Santoro AF, Stein DJ, Robbins RN. Evaluating construct and criterion validity of NeuroScreen in assessing neurocognition among hospitalized Ugandan first-episode psychosis patients. Schizophr Res Cogn 2022; 32:100276. [PMID: 36593996 PMCID: PMC9803945 DOI: 10.1016/j.scog.2022.100276] [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: 10/04/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/25/2022]
Abstract
Introduction Neurocognitive impairment (NCI) is commonly exhibited among patients experiencing their first episode of psychosis. However, there are few resources in many low-income countries, such as Uganda, that allow for the administration of extensive neurocognitive test batteries for the detection of NCI. NeuroScreen is a brief tablet-based neurocognitive assessment battery that can be administered by all levels of healthcare staff. We examined the validity of NeuroScreen to assess neurocognition and detect NCI in first-episode psychosis (FEP) patients in Uganda. Methods We enrolled 112 participants FEP patients and matched controls at Butabika Mental Referral Hospital. Each participant completed NeuroScreen and a traditionally administered neurocognitive battery: the MATRIC Consensus Cognitive Battery (MCCB). We examined correlations between participant performance on NeuroScreen and the MCCB. A ROC curve determined sensitivity and specificity of NeuroScreen to detect NCI as determined by MCCB criterion. Results There was a large, statistically significant correlation between overall performance on NeuroScreen and the MCCB [r(112) = 0.64, p < .001]. Small to large correlations were found between tests in the MCCB and NeuroScreen batteries. The ROC curve of NeuroScreen performance to detect MCCB-defined NCI had an area under curve of 0.80 and optimal sensitivity and specificity of 83 % and 60 %, respectively. Conclusion There was a moderate positive correlation between overall performance on both batteries. NeuroScreen shows promise as a valid assessment battery to assess neurocognition and detect NCI in FEP patients in Uganda. Further studies of NeuroScreen in healthy individuals and in a range of mental disorders are recommended.
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Affiliation(s)
- Nana Asiedu
- HIV Center for Behavioral Studies, New York State Psychiatric Institute and Columbia University, 1051 Riverside Drive, New York, NY 10032, United States of America,Corresponding author.
| | - Emmanuel Kiiza Mwesiga
- Makerere University College of Health Sciences, School of Medicine, Department of Psychiatry, 7072 Upper Mulago Hill, Mulago Hospital Complex, Uganda,Department of Psychiatry and Mental Health, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Dickens Akena
- Makerere University College of Health Sciences, School of Medicine, Department of Psychiatry, 7072 Upper Mulago Hill, Mulago Hospital Complex, Uganda
| | - Corey Morrison
- HIV Center for Behavioral Studies, New York State Psychiatric Institute and Columbia University, 1051 Riverside Drive, New York, NY 10032, United States of America
| | - Joy Louise Gumikiriza-Onoria
- Makerere University College of Health Sciences, School of Medicine, Department of Psychiatry, 7072 Upper Mulago Hill, Mulago Hospital Complex, Uganda
| | - Angel Nanteza
- Butabika National Referral Mental Hospital, Plot 2 Kirombe-Butabika Road, Kampala, Uganda
| | - Juliet Nakku
- Butabika National Referral Mental Hospital, Plot 2 Kirombe-Butabika Road, Kampala, Uganda
| | - Nastassja Koen
- Department of Psychiatry and Mental Health, University of Cape Town, Rondebosch, Cape Town, South Africa,Neuroscience Institute, University of Cape Town, Observatory, Cape Town, South Africa,South African Medical Research Council (SAMRC) Unit on Risk & Resilience in Mental Disorders, Francie van Zijl Drive Parowvallei, Cape Town, South Africa
| | - Noeline Nakasujja
- Makerere University College of Health Sciences, School of Medicine, Department of Psychiatry, 7072 Upper Mulago Hill, Mulago Hospital Complex, Uganda
| | - Wilber Ssembajjwe
- Medical Research Council, Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine, PO Box 49, Entebbe Plot 51-59 Nakiwogo Road, Uganda
| | - Christopher M. Ferraris
- HIV Center for Behavioral Studies, New York State Psychiatric Institute and Columbia University, 1051 Riverside Drive, New York, NY 10032, United States of America
| | - Anthony F. Santoro
- HIV Center for Behavioral Studies, New York State Psychiatric Institute and Columbia University, 1051 Riverside Drive, New York, NY 10032, United States of America
| | - Dan J. Stein
- Department of Psychiatry and Mental Health, University of Cape Town, Rondebosch, Cape Town, South Africa,Neuroscience Institute, University of Cape Town, Observatory, Cape Town, South Africa,South African Medical Research Council (SAMRC) Unit on Risk & Resilience in Mental Disorders, Francie van Zijl Drive Parowvallei, Cape Town, South Africa
| | - Reuben N. Robbins
- HIV Center for Behavioral Studies, New York State Psychiatric Institute and Columbia University, 1051 Riverside Drive, New York, NY 10032, United States of America
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Robbins RN, Santoro AF, Ferraris C, Asiedu N, Liu J, Dolezal C, Malee KM, Mellins CA, Paul R, Thongpibul K, Puthanakit T, Aurpibul L. Adaptation and construct validity evaluation of a tablet-based, short neuropsychological test battery for use with adolescents and young adults living with HIV in Thailand. Neuropsychology 2022; 36:695-708. [PMID: 35980694 PMCID: PMC9897317 DOI: 10.1037/neu0000851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Deficits in neurocognitive functioning are common among adolescents and young adults (AYA) with perinatally acquired HIV (PHIV). Limitations of traditional neuropsychological tests hinder assessment of neurocognition in low- and middle-income countries where most AYA with PHIV reside. Computerized testing could make assessment of neurocognition more accessible in these countries. This study examined a culturally modified NeuroScreen, a tablet-based neurocognitive testing app, for use in Thailand. Construct validity was examined among Thai AYA (13-23 years) with and without PHIV. METHOD NeuroScreen underwent adaptation including language, content, and usability review by Thai psychologists, AYA, and clinical staff. One hundred Thai AYA (50 PHIV; 50 HIV-uninfected, matched controls) were administered the adapted NeuroScreen and a battery of traditional paper-and-pencil neuropsychological tests. Correlations, mean differences, and proportions with impaired performance were examined across NeuroScreen and the traditional tests. RESULTS The Thai version of NeuroScreen was deemed understandable and culturally appropriate. A large correlation (.82) between overall performance on the NeuroScreen and traditional batteries was observed. Small-to-large correlations were found between conceptually similar NeuroScreen and traditional tests of processing speed, working memory, motor speed, and executive functioning. Mean test performance differences between AYA with PHIV and controls were similar between test batteries. Both sets of tests identified similar rates of impaired participants. CONCLUSIONS Results provide support for the acceptability and construct validity of the Thai NeuroScreen tests to assess neurocognition in Thai AYA with PHIV. An easy-to-use tool to assess neurocognition can help Thai providers provide better care for AYA with PHIV. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
| | | | | | - Nana Asiedu
- HIV Center for Clinical and Behavioral Studies
| | - Jun Liu
- New York State Psychiatric Institute
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Himanshu D, Tandon R, Kumar S, Sawlani KK, Verma SK, Misra R, Atam V. Is International HIV Dementia Scale good enough to diagnose HIV-associated neurocognitive disorders? J Family Med Prim Care 2022; 11:5060-5064. [PMID: 36505608 PMCID: PMC9731045 DOI: 10.4103/jfmpc.jfmpc_356_21] [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: 02/18/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction Human immunodeficiency virus (HIV)-associated neurocognitive disorders (HAND) comprise impairment of multiple cognitive domains and cause significant morbidity. International HIV Dementia Scale (IHDS) is a quite sensitive and specific method for screening for HAND, and Modified Mini-Mental State Examination (3MS), though nonspecific, contains more parameters for screening for neurocognition. Hence, we compared 3MS and IHDS as screening tools for HAND with an aim to find out which was a better screening tool for HAND. Methods Using 3MS and IHDS, we assessed the cognitive status of 200 HIV-positive patients (65% males) and 84 controls, presenting to the Department of Medicine, King George's Medical University, Lucknow, India from September 2015 to September 2019. Results According to 3MS, 42 (21%) HIV-positive patients were neurocognitively impaired (mean 76.24 ± 1.51), and 158 (79%) patients were not (mean 87.02 ± 4.16). As per IHDS, 185 (92.5%) HIV patients were neurocognitively impaired (mean 8.45 ± 0.88), and 15 (7.5%) patients were not (mean 11.13 ± 0.35). The mean 3MS score of controls was 87.56 ± 4.26, and the IHDS score was 9.73 ± 1.00. According to Patient Health Questionnaire-9 (PHQ-9), moderate depression occurred in only 3.5% of the patients, and the rest had only minimal or mild depression. In IHDS, psychomotor speed was the most affected parameter, whereas in 3MS, similarities were the most affected. Conclusion IHDS may be over diagnosing neurocognitive impairment in HIV patients due to difficulty in understanding the test, especially psychomotor speed testing. 3MS may be more accurate for detecting neurocognitive impairment in HIV patients, and scale combining both these methods may be a still better choice.
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Affiliation(s)
- Dandu Himanshu
- Department of Medicine, King George’s Medical University, Lucknow, India
| | - Ruchika Tandon
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India,Address for correspondence: Dr. Ruchika Tandon, Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh - 226014, India. E-mail:
| | - Sachin Kumar
- Department of Medicine, King George’s Medical University, Lucknow, India
| | - Kamal K. Sawlani
- Department of Medicine, King George’s Medical University, Lucknow, India
| | - Sudhir K. Verma
- Department of Medicine, King George’s Medical University, Lucknow, India
| | - Ravi Misra
- Department of Medicine, King George’s Medical University, Lucknow, India
| | - Virendra Atam
- Department of Medicine, King George’s Medical University, Lucknow, India
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11
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Watson CWM, Kamalyan L, Tang B, Hussain MA, Cherner M, Mindt MR, Byrd DA, Franklin DR, Collier AC, Clifford DB, Gelman B, Morgello S, McCutchan JA, Ellis RJ, Grant I, Heaton RK, Marquine MJ. Ethnic/Racial Disparities in Longitudinal Neurocognitive Decline in People With HIV. J Acquir Immune Defic Syndr 2022; 90:97-105. [PMID: 35081558 PMCID: PMC8986565 DOI: 10.1097/qai.0000000000002922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/19/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND To examine longitudinal neurocognitive decline among Latino, non-Latino Black, and non-Latino White people with HIV (PWH) and factors that may explain ethnic/racial disparities in neurocognitive decline. METHODS Four hundred ninety nine PWH (13.8% Latino, 42.7% Black, 43.5% White; baseline age: M = 43.5) from the CNS HIV Anti-Retroviral Therapy Effects Research (CHARTER) study completed neurocognitive, neuromedical, and laboratory assessments every 6-12 months with up to 5 years of follow-up. Longitudinal neurocognitive change was determined via published regression-based norms. Survival analyses investigated the relationship between ethnicity/race and neurocognitive change, and baseline and time-dependent variables that may explain ethnic/racial disparities in neurocognitive decline, including socio-demographic, HIV-disease, medical, psychiatric, and substance use characteristics. RESULTS In Cox proportional hazard models, hazard ratios for neurocognitive decline were increased for Latino compared with White PWH (HR = 2.25, 95% CI = 1.35 to 3.73, P = 0.002), and Latino compared with Black PWH (HR = 1.86, 95% CI = 1.14 to 3.04, P = 0.013), with no significant differences between Black and White PWH (P = 0.40). Comorbidities, including cardiometabolic factors and more severe neurocognitive comorbidity classification, accounted for 33.6% of the excess hazard for Latino compared with White PWH, decreasing the hazard ratio associated with Latino ethnicity (HR = 1.83, 95% CI = 1.06 to 3.16, P = 0.03), but did not fully account for elevated risk of decline. CONCLUSIONS Latino PWH may be at higher risk of early neurocognitive decline compared with Black and White PWH. Comorbidities accounted for some, but not all, of this increased risk among Latino PWH. Future research examining institutional, sociocultural, and biomedical factors, including structural discrimination and age-related biomarkers, may further explain the observed disparities.
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Affiliation(s)
| | | | - Bin Tang
- University of California, San Diego, San Diego, CA
| | | | | | | | | | | | - Ann C. Collier
- University of Washington School of Medicine, Seattle, WA
| | | | | | | | | | | | - Igor Grant
- University of California, San Diego, San Diego, CA
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12
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Vastag Z, Fira-Mladinescu O, Rosca EC. HIV-Associated Neurocognitive Disorder (HAND): Obstacles to Early Neuropsychological Diagnosis. Int J Gen Med 2022; 15:4079-4090. [PMID: 35450033 PMCID: PMC9017704 DOI: 10.2147/ijgm.s295859] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/11/2022] [Indexed: 12/19/2022] Open
Affiliation(s)
- Zsolt Vastag
- Doctoral School, Victor Babes University of Medicine and Pharmacy of Timisoara, Timisoara, 300041, Romania
- Clinical Hospital of Infectious Diseases and Pneumology Victor Babes Timisoara, Timisoara, 300173, Romania
| | - Ovidiu Fira-Mladinescu
- Clinical Hospital of Infectious Diseases and Pneumology Victor Babes Timisoara, Timisoara, 300173, Romania
- The XIIIth Department - Pulmonology, Center for Research and Innovation in Personalized Medicine of Respiratory Diseases, Victor Babes University of Medicine and Pharmacy Timisoara, Timișoara, 300041, Romania
- Ovidiu Fira-Mladinescu, The XIIIth Department - Pulmonology, Center for Research and Innovation in Personalized Medicine of Respiratory Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, Timisoara, 300041, Romania, Tel +40 745 608856, Email
| | - Elena Cecilia Rosca
- Department of Neurology, Victor Babes University of Medicine and Pharmacy of Timisoara, Timisoara, 300041, Romania
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Timisoara, 300736, Romania
- Correspondence: Elena Cecilia Rosca, Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca No. 10, Timisoara, 300736, Romania, Tel + 40 746 173794, Email
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13
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Herold CJ, Kong L, Ceballos ME, Schröder J, Toro P. Neurological soft signs and brain morphology in people living with HIV. J Neurovirol 2022; 28:236-247. [PMID: 35352314 PMCID: PMC9187556 DOI: 10.1007/s13365-022-01071-6] [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: 05/18/2021] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 11/30/2022]
Abstract
Neurological soft signs (NSS) are a common feature of severe psychiatric disorders such as schizophrenia but are also prevalent in organic brain diseases like HIV-associated neurocognitive disorder (HAND) or Alzheimer’s disease. While distinct associations between NSS, neurocognition, and cerebral regions were demonstrated in schizophrenia, these associations still have to be elucidated in HIV. Therefore, we investigated 36 persons with HIV of whom 16 were neurocognitively healthy and 20 were diagnosed with HAND. NSS were assessed using the Heidelberg scale. NSS scores were correlated with gray matter (GM) using whole brain voxel-based morphometry. Results showed significantly elevated NSS in the HAND group when compared to the neurocognitively healthy with respect to NSS total score and the subscores “orientation” and “complex motor tasks”. While the two groups showed only minor, non-significant GM differences, higher NSS scores (subscales “motor coordination”, “orientation”) were significantly correlated with GM reduction in the right insula and cerebellum (FWE-corrected). Our results corroborate elevated NSS in HIV+ patients with HAND in contrast to cognitively unimpaired patients. In addition, cerebral correlates of NSS with GM reductions in insula and cerebellum were revealed. Taken together, NSS in this patient group could be considered a marker of cerebral damage and neurocognitive deficits.
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Affiliation(s)
- Christina J Herold
- Section of Geriatric Psychiatry, Department of General Psychiatry, University of Heidelberg, Heidelberg, Germany.
| | - Li Kong
- Department of Psychology, Shanghai Normal University, Shanghai, China.
| | - María Elena Ceballos
- Department of Infectious Diseases, Medicine School, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Johannes Schröder
- Section of Geriatric Psychiatry, Department of General Psychiatry, University of Heidelberg, Heidelberg, Germany
| | - Pablo Toro
- Department of Psychiatry, Medicine School, Pontificia Universidad Católica de Chile, Santiago, Chile
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14
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Robbins RN, Scott TM, Gouse H, Marcotte TD, Rourke SB. Screening for HIV-Associated Neurocognitive Disorders: Sensitivity and Specificity. Curr Top Behav Neurosci 2021; 50:429-478. [PMID: 32677005 DOI: 10.1007/7854_2019_117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
HIV-associated neurocognitive disorder (HAND) remains prevalent among people living with HIV (PLWH), especially the mild forms, even those with well-controlled HIV. Recommendations from the literature suggest routine and regular screening for HAND to detect it early and manage it effectively and adjust treatments, if warranted, when present. However, screening for HAND is not routinely done, as there are no current guidelines on when to screen and which test or tests to use. Furthermore, many of the available screening tools for HAND often cannot accurately detect the mild forms of HAND and require highly trained healthcare professionals to administer and score the tests, a requirement that is not feasible for those low- and middle-income countries with the highest HIV incidence and prevalence rates. The purpose of this chapter was to review recent research on screening tests to detect HAND and report on the strengths, limitations, and psychometric properties of those tests to detect HAND.
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Affiliation(s)
- Reuben N Robbins
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA.
| | - Travis M Scott
- Department of Psychology, Fordham University, The Bronx, NY, USA.,VA Palo Alto Health Care System, Sierra Pacific MIRECC, Palo Alto, CA, USA
| | - Hetta Gouse
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Thomas D Marcotte
- HIV Neurobehavioral Research Program, Center for Medicinal Cannabis Research, University of California, San Diego, San Diego, CA, USA
| | - Sean B Rourke
- Centre for Urban Health Solutions, St Michael's Hospital, Toronto University, Toronto, ON, Canada
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15
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Agan BK, Won SH, Ganesan A, Smith BR, Estupigan C, Maves R, Utz G, Hsieh HC, Tramont E, Nath A, Snow J. Prospective Evaluation of an Abbreviated Test Battery to Screen for Neurocognitive Impairment in HIV-Positive Military Members. AIDS Behav 2021; 25:3347-3354. [PMID: 34382119 DOI: 10.1007/s10461-021-03341-6] [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] [Accepted: 06/07/2021] [Indexed: 11/25/2022]
Abstract
Human immunodeficiency virus (HIV)-associated neurocognitive disorder (HAND) affects around 20-50% of people living with HIV (PLWH). Although batteries of tests are used to identify neurocognitive impairment (NCI), they are long and difficult to perform during a routine clinic visit, thus impairing the ability to diagnose HAND. Therefore, a brief yet sensitive screening tool to identify NCI is necessary. This study prospectively evaluated an abbreviated screening battery with reported 86.5%/87.1% sensitivity/specificity, identified from a planned post-hoc analysis in a prior neurocognitive study among military PLWH. Adult HIV-positive military beneficiaries in the U.S. Military HIV Natural History Study, who agreed to undergo a comprehensive seven-domain neuropsychological battery (16 tests), and who completed an additional 20-min abbreviated battery (AB), comprised of four tests, prior to the full battery (FB) were included in this analysis. A group of 169 individuals completed both tests, of which 25.4% had a positive AB and 17.8% had NCI on FB (global deficit score ≥ 0.5). With the FB as the reference standard, the specificity for the AB was 79.9% (73.2-86.5), however the sensitivity was 50.0% (32.1-67.9). In those with NCI by FB but not AB, the most common impaired domains were executive function (73.3%) and memory (73.3%), both being domains not fully tested by the AB. An abbreviated HAND screening battery of four tests requiring approximately 20 min provided a relatively high level of specificity but lacked sensitivity for detection of NCI. Inclusion of additional domains or alternative scoring approaches may improve sensitivity but require further study. Continued efforts are needed to develop an effective brief screening test for HAND.
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Affiliation(s)
- Brian K Agan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA.
| | - Seung Hyun Won
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Anuradha Ganesan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
- Division of Infectious Diseases, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Bryan R Smith
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Camille Estupigan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Ryan Maves
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Division of Infectious Diseases, Naval Medical Center San Diego, San Diego, CA, USA
| | - Gregory Utz
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
- Division of Infectious Diseases, Naval Medical Center San Diego, San Diego, CA, USA
| | - Hsing-Chuan Hsieh
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Edmund Tramont
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Avindra Nath
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Joseph Snow
- National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
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16
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Mwangala PN, Mabrouk A, Wagner R, Newton CRJC, Abubakar AA. Mental health and well-being of older adults living with HIV in sub-Saharan Africa: a systematic review. BMJ Open 2021; 11:e052810. [PMID: 34551953 PMCID: PMC8461287 DOI: 10.1136/bmjopen-2021-052810] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE In this systematic review, we aimed to summarise the empirical evidence on common mental disorders (CMDs), cognitive impairment, frailty and health-related quality of life (HRQoL) among people living with HIV aged ≥50 years (PLWH50 +) residing in sub-Saharan Africa (SSA). Specifically, we document the prevalence and correlates of these outcomes. DESIGN, DATA SOURCES AND ELIGIBILITY CRITERIA The following online databases were systematically searched: PubMed, CINAHL, PsycINFO, Embase and Scopus up to January 2021. English-language publications on depression, anxiety, cognitive function, frailty and quality of life among PLWH50+ residing in SSA were included. DATA EXTRACTION AND SYNTHESIS We extracted information, including study characteristics and main findings. These were tabulated, and a narrative synthesis approach was adopted, given the substantial heterogeneity among included studies. RESULTS A total of 50 studies from fifteen SSA countries met the inclusion criteria. About two-thirds of these studies emanated from Ethiopia, Uganda and South Africa. Studies regarding depression predominated (n=26), followed by cognitive impairment (n=13). Overall, PLWH50+ exhibited varying prevalence of depression (6%-59%), cognitive impairments (4%-61%) and frailty (3%-15%). The correlates of CMDs, cognitive impairment, frailty and HRQoL were rarely investigated, but those reported were sociodemographic variables, many of which were inconsistent. CONCLUSIONS This review documented an increasing number of published studies on HIV and ageing from SSA. However, the current evidence on the mental and well-being outcomes in PLWH50+ is inadequate to characterise the public health dimension of these impairments in SSA, because of heterogeneous findings, few well-designed studies and substantial methodological limitations in many of the available studies. Future work should have sufficiently large samples of PLWH50+, engage appropriate comparison groups, harmonise the measurement of these outcomes using a standardised methodology to generate more robust prevalence estimates and confirm predictors. PROSPERO REGISTRATION NUMBER CRD42020145791.
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Affiliation(s)
- Patrick Nzivo Mwangala
- Department of Clinical Research (Neurosciences), KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- University of the Witwatersrand School of Public Health, Johannesburg, South Africa
| | - Adam Mabrouk
- Department of Clinical Research (Neurosciences), KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Ryan Wagner
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Parkton, Gauteng, South Africa
| | - Charles R J C Newton
- Department of Clinical Research (Neurosciences), KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Amina A Abubakar
- Department of Clinical Research (Neurosciences), KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Psychiatry, University of Oxford, Oxford, UK
- Institute for Human Development, Aga Khan University, Nairobi, Kenya
- Department of Public Health, Pwani University, Kilifi, Kenya
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17
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Rubin LH, Severson J, Marcotte TD, Savin MJ, Best A, Johnson S, Cosman J, Merickel M, Buchholz A, Del Bene VA, Eldred L, Sacktor NC, Fuchs JB, Althoff KN, Moore RD. Tablet-Based Cognitive Impairment Screening for Adults With HIV Seeking Clinical Care: Observational Study. JMIR Ment Health 2021; 8:e25660. [PMID: 34499048 PMCID: PMC8461534 DOI: 10.2196/25660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 05/15/2021] [Accepted: 05/25/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Neurological complications including cognitive impairment persist among people with HIV on antiretrovirals; however, cognitive screening is not routinely conducted in HIV clinics. OBJECTIVE Our objective for this study was 3-fold: (1) to determine the feasibility of implementing an iPad-based cognitive impairment screener among adults seeking HIV care, (2) to examine the psychometric properties of the tool, and (3) to examine predictors of cognitive impairment using the tool. METHODS A convenience sample of participants completed Brain Baseline Assessment of Cognition and Everyday Functioning (BRACE), which included (1) Trail Making Test Part A, measuring psychomotor speed; (2) Trail Making Test Part B, measuring set-shifting; (3) Stroop Color, measuring processing speed; and (4) the Visual-Spatial Learning Test. Global neuropsychological function was estimated as mean T score performance on the 4 outcomes. Impairment on each test or for the global mean was defined as a T score ≤40. Subgroups of participants repeated the tests 4 weeks or >6 months after completing the first test to evaluate intraperson test-retest reliability and practice effects (improvements in performance due to repeated test exposure). An additional subgroup completed a lengthier cognitive battery concurrently to assess validity. Relevant factors were abstracted from electronic medical records to examine predictors of global neuropsychological function. RESULTS The study population consisted of 404 people with HIV (age: mean 53.6 years; race: 332/404, 82% Black; 34/404, 8% White, 10/404, 2% American Indian/Alaskan Native; 28/404, 7% other and 230/404, 58% male; 174/404, 42% female) of whom 99% (402/404) were on antiretroviral therapy. Participants completed BRACE in a mean of 12 minutes (SD 3.2), and impairment was demonstrated by 34% (136/404) on Trail Making Test A, 44% (177/404) on Trail Making Test B, 40% (161/404) on Stroop Color, and 17% (67/404) on Visual-Spatial Learning Test. Global impairment was demonstrated by 103 out of 404 (25%). Test-retest reliability for the subset of participants (n=26) repeating the measure at 4 weeks was 0.81 and for the subset of participants (n=67) repeating the measure almost 1 year later (days: median 294, IQR 50) was 0.63. There were no significant practice effects at either time point (P=.20 and P=.68, respectively). With respect for validity, the correlation between global impairment on the lengthier cognitive battery and BRACE was 0.63 (n=61; P<.001), with 84% sensitivity and 94% specificity to impairment on the lengthier cognitive battery. CONCLUSIONS We were able to successfully implement BRACE and estimate cognitive impairment burden in the context of routine clinic care. BRACE was also shown to have good psychometric properties. This easy-to-use tool in clinical settings may facilitate the care needs of people with HIV as cognitive impairment continues to remain a concern in people with HIV.
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Affiliation(s)
- Leah H Rubin
- Johns Hopkins University, Baltimore, MD, United States
| | | | | | | | - Allen Best
- Digital Artefacts LLC, Iowa City, IA, United States
| | | | | | | | | | | | - Lois Eldred
- Johns Hopkins University, Baltimore, MD, United States
| | - Ned C Sacktor
- Johns Hopkins University, Baltimore, MD, United States
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Martinez-Banfi M, Vélez JI, Mebarak Chams MR, Arcos-Holzinger M, Acosta-López JE, García R, Perea MV, Arcos-Burgos M, Ladera V. Utility of a Short Neuropsychological Protocol for Detecting HIV-Associated Neurocognitive Disorders in Patients with Asymptomatic HIV-1 Infection. Brain Sci 2021; 11:1037. [PMID: 34439656 PMCID: PMC8394998 DOI: 10.3390/brainsci11081037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 12/31/2022] Open
Abstract
Human Immunodeficiency Virus type 1 (HIV-1) infection is a chronic disease that affects ~40 million people worldwide. HIV-associated neurocognitive disorders (HAND) are common in individuals with HIV-1 Infection, and represent a recent public health problem. Here we evaluate the performance of a recently proposed short protocol for detecting HAND by studying 60 individuals with HIV-1-Infection and 60 seronegative controls from a Caribbean community in Barranquilla, Colombia. The short evaluation protocol used significant neuropsychological tests from a previous study of asymptomatic HIV-1 infected patients and a group of seronegative controls. Brief screening instruments, i.e., the Mini-mental State Examination (MMSE) and the International HIV Dementia Scale (IHDS), were also applied. Using machine-learning techniques, we derived predictive models of HAND status, and evaluated their performance with the ROC curves. The proposed short protocol performs exceptionally well yielding sensitivity, specificity, and overall prediction values >90%, and better predictive capacity than that of the MMSE and IHDS. Community-specific cut-off values for HAND diagnosis, based on the MMSE and IHDS, make this protocol suitable for HAND screening in individuals from this Caribbean community. This study shows the effectivity of a recently proposed short protocol to detect HAND in individuals with asymptomatic HIV-1-Infection. The application of community-specific cut-off values for HAND diagnosis in the clinical setting may improve HAND screening accuracy and facilitate patients' treatment and follow-up. Further studies are needed to assess the performance of this protocol in other Latin American populations.
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Affiliation(s)
- Martha Martinez-Banfi
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia;
| | - Jorge I. Vélez
- Department of Industrial Engineering, Universidad del Norte, Barranquilla 081007, Colombia;
| | | | - Mauricio Arcos-Holzinger
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, Medellín 050010, Colombia; (M.A.-H.); (M.A.-B.)
| | - Johan E. Acosta-López
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia;
| | - Ricardo García
- Facultad de Psicología, Universidad de Salamanca, 37008 Salamanca, Spain; (R.G.); (M.V.P.); (V.L.)
| | - María Victoria Perea
- Facultad de Psicología, Universidad de Salamanca, 37008 Salamanca, Spain; (R.G.); (M.V.P.); (V.L.)
| | - Mauricio Arcos-Burgos
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Instituto de Investigaciones Médicas, Facultad de Medicina, Universidad de Antioquia, Medellín 050010, Colombia; (M.A.-H.); (M.A.-B.)
| | - Valentina Ladera
- Facultad de Psicología, Universidad de Salamanca, 37008 Salamanca, Spain; (R.G.); (M.V.P.); (V.L.)
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Rosca EC, Tadger P, Cornea A, Tudor R, Oancea C, Simu M. International HIV Dementia Scale for HIV-Associated Neurocognitive Disorders: A Systematic Review and Meta-Analysis. Diagnostics (Basel) 2021; 11:1124. [PMID: 34202994 PMCID: PMC8235728 DOI: 10.3390/diagnostics11061124] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 12/02/2022] Open
Abstract
The present study aims to systematically review the evidence on the accuracy of the International HIV Dementia Scale (IHDS) test for diagnosing human immunodeficiency virus (HIV)-associated neurocognitive disorders (HAND) and outline the quality and quantity of research evidence available on the accuracy of IHDS in people living with HIV. We conducted a systematic literature review, searching five databases from inception until July 2020. We extracted dichotomized positive and negative test results at various thresholds and calculated the sensitivity and specificity of IHDS. Quality assessment was performed according to the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) criteria. Fifteen cross-sectional studies, published between 2011 and 2018, met the inclusion criteria for meta-analysis. Overall, 3760 patients were included, but most studies recruited small samples. We assessed most studies as being applicable to the review question, though we had concerns about the selection of participants in three studies. The accuracy of IHDS was investigated at thirteen cut-off points (scores 6-12). The threshold of 10 is the most useful for optimal HAND screening (including asymptomatic neurocognitive disorder, symptomatic HAND, and HIV-associated dementia) with fair diagnostic accuracy.
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Affiliation(s)
- Elena Cecilia Rosca
- Department of Neurology, Victor Babes University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania; (A.C.); (R.T.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
- Neuroscience Research Center Timisoara, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
| | | | - Amalia Cornea
- Department of Neurology, Victor Babes University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania; (A.C.); (R.T.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
- Neuroscience Research Center Timisoara, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
| | - Raluca Tudor
- Department of Neurology, Victor Babes University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania; (A.C.); (R.T.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
- Neuroscience Research Center Timisoara, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
| | - Cristian Oancea
- Center for Research and Innovation in Precision Medicine of Respiratory Diseases, University of Medicine and Pharmacy “Victor Babes” Timisoara, 300173 Timisoara, Romania;
| | - Mihaela Simu
- Department of Neurology, Victor Babes University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania; (A.C.); (R.T.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
- Neuroscience Research Center Timisoara, Clinical Emergency County Hospital Timisoara, 300736 Timisoara, Romania
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Gupta K, Shivabalan, Kumar V, Vyas S, Pandey RM, Jagannathan NR, Sinha S. Cognitive Performance and Neuro-Metabolites in HIV Using 3T Magnetic Resonance Spectroscopy: A Cross-Sectional Study from India. Curr HIV Res 2021; 19:147-153. [PMID: 33106144 DOI: 10.2174/1570162x18666201026141729] [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: 06/19/2020] [Revised: 09/08/2020] [Accepted: 09/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cognitive impairment in patients with human immunodeficiency virus (HIV) is associated with higher morbidity. The prevalence of the metabolite changes in the brain associated with cognitive impairment in anti-retroviral therapy naïve patients with HIV is unknown. OBJECTIVE To estimate the prevalence of the neurometabolites associated with cognitive impairment in antiretroviral therapy (ART) naïve patients with HIV. METHODS We conducted a cross-sectional study among ART naïve patients with HIV aged 18-50 years in a tertiary care center in India. Cognition was tested using the Post Graduate Institute battery of brain dysfunction across five domains; memory, attention-information processing, abstraction executive, complex perceptual, and simple motor skills. We assessed the total N-acetyl aspartyl (tNAA), creatine (tCr) and glutamate + glutamine (Glx) using 3T magnetic resonance spectroscopy. Cognitive impairment was defined as an impairment in ≥2 domains. RESULTS Among 43 patients eligible for this study, the median age was 32 years (IQR 29, 40) and 30% were women. Median CD4 count and viral load were 317 cells/μL (IQR 157, 456) and 9.3 copies/ μL (IQR 1.4, 38), respectively. Impairment in at least one cognitive domain was present in 32 patients (74.4%). Impairment in simple motor skills and memory was present in 46.5% and 44% of patients, respectively. Cognitive impairment, defined by impairment in ≥2 domains, was found in 22 (51.2%) patients. There was a trend towards higher concentration of tNAA (7.3 vs. 7.0 mmol/kg), tGlx (9.1 vs. 8.2 mmol/kg), and tCr (5.5 vs. 5.2 mmol/kg) in the frontal lobe of patients with cognitive impairment vs. without cognitive impairment but it did not reach statistical significance (p>0.05 for all). There was no difference in the concentration of these metabolites in the two groups in the basal ganglia. CONCLUSION There is a high prevalence of cognitive impairment in ART naïve patients with HIV. There is no difference in metabolites in patients with or without cognitive impairment. Further studies, with longitudinal follow-up are required to understand the underlying pathophysiological mechanisms.
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Affiliation(s)
- K Gupta
- Department of Internal Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shivabalan
- Department of Nuclear Magnetic Resonance and Magnetic Resonance Imaging Facility, All India Institute of Medical Sciences, New Delhi, India
| | - V Kumar
- Department of Nuclear Magnetic Resonance and Magnetic Resonance Imaging Facility, All India Institute of Medical Sciences, New Delhi, India
| | - S Vyas
- Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India
| | - R M Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - N R Jagannathan
- Department of Nuclear Magnetic Resonance and Magnetic Resonance Imaging Facility, All India Institute of Medical Sciences, New Delhi, India
| | - S Sinha
- Department of Internal Medicine, All India Institute of Medical Sciences, New Delhi, India
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Xu Y, Lin Y, Bell RP, Towe SL, Pearson JM, Nadeem T, Chan C, Meade CS. Machine learning prediction of neurocognitive impairment among people with HIV using clinical and multimodal magnetic resonance imaging data. J Neurovirol 2021; 27:1-11. [PMID: 33464541 PMCID: PMC8001877 DOI: 10.1007/s13365-020-00930-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 11/29/2020] [Accepted: 12/02/2020] [Indexed: 01/24/2023]
Abstract
Diagnosis of HIV-associated neurocognitive impairment (NCI) continues to be a clinical challenge. The purpose of this study was to develop a prediction model for NCI among people with HIV using clinical- and magnetic resonance imaging (MRI)-derived features. The sample included 101 adults with chronic HIV disease. NCI was determined using a standardized neuropsychological testing battery comprised of seven domains. MRI features included gray matter volume from high-resolution anatomical scans and white matter integrity from diffusion-weighted imaging. Clinical features included demographics, substance use, and routine laboratory tests. Least Absolute Shrinkage and Selection Operator Logistic regression was used to perform variable selection on MRI features. These features were subsequently used to train a support vector machine (SVM) to predict NCI. Three different classification tasks were performed: one used only clinical features; a second used only selected MRI features; a third used both clinical and selected MRI features. Model performance was evaluated by area under the receiver operating characteristic curve (AUC), accuracy, sensitivity, and specificity with a tenfold cross-validation. The SVM classifier that combined selected MRI with clinical features outperformed the model using clinical features or MRI features alone (AUC: 0.83 vs. 0.62 vs. 0.79; accuracy: 0.80 vs. 0.65 vs. 0.72; sensitivity: 0.86 vs. 0.85 vs. 0.86; specificity: 0.71 vs. 0.37 vs. 0.52). Our results provide preliminary evidence that combining clinical and MRI features can increase accuracy in predicting NCI and could be developed as a potential tool for NCI diagnosis in HIV clinical practice.
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Affiliation(s)
- Yunan Xu
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA.
| | - Yizi Lin
- Department of Statistical Science, Duke University, Durham, NC, USA
| | - Ryan P Bell
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Sheri L Towe
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - John M Pearson
- Center for Cognitive Neuroscience and Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
- Department of Biostatistics and Bioinformatics, Duke University Medical School, Durham, NC, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA
| | - Tauseef Nadeem
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Cliburn Chan
- Department of Biostatistics and Bioinformatics, Duke University Medical School, Durham, NC, USA
| | - Christina S Meade
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
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Screening for HIV-Associated Neurocognitive Disorder (HAND) in Adults Aged 50 and Over Attending a Government HIV Clinic in Kilimanjaro, Tanzania. Comparison of the International HIV Dementia Scale (IHDS) and IDEA Six Item Dementia Screen. AIDS Behav 2021; 25:542-553. [PMID: 32875460 PMCID: PMC7846532 DOI: 10.1007/s10461-020-02998-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Validated screening tools for HIV-associated neurocognitive disorders (HAND) are lacking for the newly emergent ageing population of people living with HIV (PLWH) in sub-Saharan Africa (SSA). We aimed to validate and compare diagnostic accuracy of two cognitive screening tools, the International HIV dementia scale (IHDS), and the Identification and Interventions for Dementia in Elderly Africans (IDEA) screen, for identification of HAND in older PLWH in Tanzania. A systematic sample of 253 PLWH aged ≥ 50 attending a Government clinic in Tanzania were screened with the IHDS and IDEA. HAND were diagnosed by consensus American Academy of Neurology (AAN) criteria based on detailed clinical neuropsychological assessment. Strict blinding was maintained between screening and clinical evaluation. Both tools had limited diagnostic accuracy for HAND (area under the receiver operating characteristic (AUROC) curve 0.639–0.667 IHDS, 0.647–0.713 IDEA), which was highly-prevalent (47.0%). Accurate HAND screening tools for older PLWH in SSA are needed.
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Cognitive Impairment Among Aging People Living With HIV on Antiretroviral Therapy: A Cross-Sectional Study in Hunan, China. J Assoc Nurses AIDS Care 2020; 31:301-311. [PMID: 31725107 DOI: 10.1097/jnc.0000000000000122] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Our cross-sectional study examined the prevalence of cognitive impairment among people living with HIV (PLWH) aged 60 years or older. The sample, composed of 250 PLWH, was recruited from 2 clinics in Hunan, China. Structured questionnaires guided face-to-face interviews, including items addressing demographic characteristics, regimens of antiretroviral therapy, and cognitive status as measured by the Montreal Cognitive Assessment. Findings revealed cognitive function of this population was significantly lower than that of uninfected individuals based on historical comparisons; 87.2% (n = 218) of PLWH in our study had cognitive impairment. Global cognitive function as well as the domains of language and orientation decreased with age. Global cognitive function was associated with sex and education, but not with antiretroviral therapy regimens. These findings support an urgent need to include routine screening for cognitive function in older PLWH and the need to consider the complexity of the evaluation process.
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Almeida F, Macedo A, Trigo D, Abreu M, Guimarães M, Luís N, Pinho R, Tavares R. Neurocognitive evaluation using the International HIV Dementia Scale (IHDS) and Montreal Cognitive Assessment Test (MoCA) in an HIV-2 population. HIV Med 2020; 22:212-217. [PMID: 33012065 DOI: 10.1111/hiv.12963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 07/28/2020] [Accepted: 08/26/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES We aimed to characterize neurocognitive impairment (NI) in an HIV-2 population using an observational cross-sectional study in four Portuguese hospitals. METHODS Adult HIV-2-infected patients were included. Montreal Cognitive Assessment Test (MoCA) and International HIV Dementia Scale (IHDS) scales were applied for screening of NI. Patient Health Questionnaire-9 (PHQ-9) and Instrumental Activities of Daily Living (IADL) scales were used for assessment of depression and functionality. A multivariate analysis was performed to assess for risk factors for NI. RESULTS Eighty-one patients were included, 50.6% of African origin (n = 41) and 49.4% of Portuguese origin (n = 40). The MoCA scale showed alterations in 81.5% of patients (100% of migrants vs. 62.5% of non-migrants, P < 0.001) and the IHDS scale showed alterations in 42%. Both scales were altered simultaneously in 35.8%. Variables independently associated with NI were age [odds ratio (OR) = 0.885] and migrant status (OR = 9.150). CONCLUSIONS Neurocognitive impairment (both scales altered) was present in 35.8%, which is comparable to what is described for HIV-1. The MoCA performed worse in the migrant population and might not be applicable in this setting.
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Affiliation(s)
- F Almeida
- Infectious Diseases department, Centro Hospitalar de São João, Porto, Portugal
| | - A Macedo
- Keypoint Group, Lisbon, Portugal
| | - D Trigo
- Infectious Diseases department, Fernando Fonseca Hospital, Amadora, Portugal
| | - M Abreu
- Infectious Diseases department, Centro Hospitalar do Porto, Porto, Portugal
| | - M Guimarães
- Infectious Diseases department, Dr. José de Almeida, Hospital, Cascais, Portugal
| | - N Luís
- Infectious Diseases department, São Bernardo Hospital, Setúbal, Portugal
| | - R Pinho
- Infectious Diseases department, Algarve Hospital Centre, Portimão, Portugal
| | - R Tavares
- Infectious Diseases department, Beatriz Ângelo Hospital, Loures, Portugal
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25
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Female sex is strongly associated with cognitive impairment in HIV infection. Neurol Sci 2020; 42:1853-1860. [PMID: 32929628 DOI: 10.1007/s10072-020-04705-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Neurocognitive disorders remain frequent despite highly active antiretroviral treatment (HAART). The CNS is known as the sanctuary of HIV infection, where persistent neuroinflammation occurs regardless of viral suppression. Moreover, opportunistic infections, neurovascular damage and HAART neurotoxicity contribute to neurocognitive impairment. Therefore, detailed epidemiological studies might help to elucidate those complex mechanisms. OBJECTIVE To investigate the prevalence of cognitive impairment and the associated sociodemographic, clinical and neuropsychological variables among HIV-infected patients admitted to a tertiary centre, in southern Brazil. METHODS An observational, cross-sectional and analytic study was conducted between February 2019 and March 2020, in Hospital Nereu Ramos (HNR), with148 HIV-infected patients. They were interviewed, submitted to the International HIV Dementia Scale (IHDS) and had their medical data analysed. RESULTS The prevalence of cognitive impairment was 69.6%. It was higher among women (OR = 3.5; 95% CI 1.5-8; p < 0.01), independently of depression, educational status and age. Full years of schooling were strongly associated with IHDS scores (p < 0.01). Patient Health Questionnaire-9 (PHQ-9) scores for depression (p = 0.8), time since HIV diagnosis (p = 0.2), CD4+ cell counts (p = 0.8) and viral load (p = 0.8) were not associated with IHDS scale. CONCLUSION A high prevalence of cognitive impairment in HIV-infected patients was identified, independently associated with the female sex and fewer years of schooling. Further studies are needed to clarify the differences in the pathophysiology between sexes and the role of cognitive reserve in prevention of cognitive impairment in HIV infection.
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Associations of antiretroviral therapy and comorbidities with neurocognitive outcomes in HIV-1-infected patients. AIDS 2020; 34:893-902. [PMID: 32028325 DOI: 10.1097/qad.0000000000002491] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate associations of antiretroviral therapy (ART) and comorbidities with neurocognitive impairments (NCIs) in ART-naive HIV-1-infected patients in clinical practice. DESIGN A retrospective study was conducted in ART-naive patients with HIV-1 diagnosis between January 2009 and December 2013 in the United States. METHODS The primary outcome was any NCI that included HIV-associated neurocognitive disorders (HAND), Alzheimer's disease, Parkinson's disease, multiple sclerosis, and other dementias. RESULTS A total of 47 862 patients met eligibility criteria (30 828 antiretroviral-treated and 17 034 antiretroviral-untreated). The median age was 45 years [interquartile range (IQR) 35--52] with 31% of patients aged at least 50 years. Seventy-five percent were men. Overall, ART was associated with reduced risks of any NCI (hazard ratio 0.41, 95% CI: 0.37--0.45), HAND (hazard ratio 0.57, 95% CI: 0.48--0.69), Alzheimer's disease (hazard ratio 0.36, 95% CI: 0.24--0.54), Parkinson's disease (hazard ratio 0.36, 95% CI: 0.25--0.51), multiple sclerosis (hazard ratio 0.26, 95% CI: 0.18--0.37), and other dementias (hazard ratio 0.50, 95% CI: 0.45--0.55). Meanwhile, the risk of any NCI was significantly increased in patients with various comorbidities including cardiac arrhythmia, paralysis, other neurological disorders, complicated diabetes, hypothyroidism, renal failure, lymphoma, rheumatoid arthritis, weight loss, and depression as compared with patients without those comorbidities. CONCLUSION ART may reduce the risk of NCIs in HIV-infected patients in general. Further research to investigate NCIs on specific antiretroviral regimens and comorbidities may provide insights regarding the long-term clinical care of these patients.
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Costaggiu D, Pinna E, Serchisu L, Barcellona D, Piano P, Ortu F, Marongiu F, Mandas A. The Repeatable Battery for the Assessment of Neuropsychological Status as a screening strategy for HIV-Associated Neurocognitive Disorders. AIDS Care 2020; 33:357-363. [PMID: 32183560 DOI: 10.1080/09540121.2020.1742859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
HIV-infected people are at risk for neurocognitive impairment (HIV-Associated Neurocognitive Disorders - HAND). To evaluate whether the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), a widely used neurocognitive screening tool, could be a valid instrument for HAND identification, we evaluated 166 HIV-infected subjects. Our results showed that 96 (57.8%) HIV-infected scored RBANS Total Index Score <85 (at least one SD below the normal), 12 (7.2%) of them scored RBANS Total Index Score <70 (at least 2 SD below the normal, indicating a possible HIV-Associated Dementia). The more compromised areas were Immediate and Delayed Memory, and Attention. In the group with RBANS Total Index Score <85, there were significantly lower scores of Mini Mental State Examination (P = 0.0008), Clock Drawing Test (P = 0.0015) and higher score of Geriatric Depression Scale (P = 0.02) compared to the RBANS Total Index Score ≥85 group. Using a stepwise logistic regression, considering RBANS Total Index Score as dependent variable, we found a positive interaction with tenofovir/emtricitabine assumption (P = 0.027), Clock Drawing Test (P = 0.0125) and educational level (P = 0.0054). Being the viro-immunological markers not capable of predicting cognitive decline in HIV-infected individuals, our data suggest that RBANS may be a valid tool for the early identification of HIV-related cognitive impairment.
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Affiliation(s)
- Diego Costaggiu
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Elisa Pinna
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Luca Serchisu
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Doris Barcellona
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Paola Piano
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Francesco Ortu
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Francesco Marongiu
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
| | - Antonella Mandas
- Department of Internal Medicine and Public Health, University of Cagliari, Cagliari, Italy
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Metral M, Nadin I, Locatelli I, Tarr PE, Calmy A, Kovari H, Brugger P, Cusini A, Gutbrod K, Schmid P, Schwind M, Kunze U, Di Benedetto C, Pignatti R, Du Pasquier R, Darling K, Cavassini M. How helpful are the European AIDS Clinical Society cognitive screening questions in predicting cognitive impairment in an aging, well-treated HIV-positive population? HIV Med 2019; 21:342-348. [PMID: 31883203 PMCID: PMC7216878 DOI: 10.1111/hiv.12828] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2019] [Indexed: 12/30/2022]
Abstract
Objectives Diagnosing neurocognitive impairment (NCI) in HIV infection requires time‐consuming neuropsychological assessment. Screening tools are needed to identify when neuropsychological referral is indicated. We examined the positive and negative predictive values (PPVs and NPVs, respectively) of the three European AIDS Clinical Society (EACS) screening questions in identifying NCI. Methods The Neurocognitive Assessment in the Metabolic and Aging Cohort (NAMACO) study recruited patients aged ≥45 years enrolled in the Swiss HIV Cohort Study between 1 May 2013 and 30 November 2016. NAMACO participants (1) answered EACS screening questions, (2) underwent standardized neuropsychological assessment and (3) completed self‐report forms [Center for Epidemiologic Studies Depression Scale (CES‐D)] rating mood. NCI categories were defined using Frascati criteria. PPVs and NPVs of the EACS screening questions in identifying NCI categories were calculated. Results Of 974 NAMACO participants with complete EACS screening question data, 244 (25.1%) expressed cognitive complaints in answer to at least one EACS screening question, of whom 51.3% had NCI (26.1% HIV‐associated and 25.2% related to confounding factors). The PPV and NPV of the EACS screening questions in identifying HIV‐associated NCI were 0.35 and 0.7, respectively. Restricting analysis to NCI with functional impairment or related to confounding factors, notably depression, the NPV was 0.90. Expressing cognitive complaints for all three EACS screening questions was significantly associated with depression (P < 0.001). Conclusions The EACS screening questions had an NPV of 0.7 for excluding patients with HIV‐associated NCI as defined by Frascati criteria. The PPV and NPV may improve if NCI diagnoses are based on new criteria.
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Affiliation(s)
- M Metral
- Service of Neurology, Department of Clinical Neurosciences, Lausanne, Switzerland
| | - I Nadin
- Service of Neurology, Department of Clinical Neurosciences, Lausanne, Switzerland.,Service of Neurology, University Hospital of Geneva, Geneva, Switzerland
| | - I Locatelli
- Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland
| | - P E Tarr
- University Department of Medicine, Kantonsspital Bruderholz, University of Basel, Bruderholz, Switzerland
| | - A Calmy
- HIV Unit, Infectious Diseases Division, Department of Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - H Kovari
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland
| | - P Brugger
- Neuropsychology Unit, Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - A Cusini
- Department of Infectious Diseases and Hospital Epidemiology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - K Gutbrod
- Division of Neurology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - P Schmid
- Infectious Diseases and Hospital Epidemiology Division, Kantonsspital St Gallen, St Gallen, Switzerland
| | - M Schwind
- Neurology Clinic, St. Gallen, Switzerland
| | - U Kunze
- Memory Clinic, Felix Platter Hospital, University Center for Medicine of Aging, Basel, Switzerland
| | - C Di Benedetto
- Infectious Diseases Unit, Lugano Regional Hospital, Lugano, Switzerland
| | - R Pignatti
- Department of Neurology, Neurocentre of Southern Switzerland, Lugano Regional Hospital, Lugano, Switzerland
| | - R Du Pasquier
- Service of Neurology, Department of Clinical Neurosciences, Lausanne, Switzerland
| | - Kea Darling
- Service of Infectious Diseases, Lausanne University Hospital, Lausanne, Switzerland
| | - M Cavassini
- Service of Infectious Diseases, Lausanne University Hospital, Lausanne, Switzerland
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McLaurin KA, Mactutus CF, Booze RM, Fairchild AJ. An Empirical Mediation Analysis of Mechanisms Underlying HIV-1-Associated Neurocognitive Disorders. Brain Res 2019; 1724:146436. [PMID: 31513791 PMCID: PMC7092796 DOI: 10.1016/j.brainres.2019.146436] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/28/2019] [Accepted: 09/04/2019] [Indexed: 12/31/2022]
Abstract
HIV-1-associated neurocognitive disorders (HAND), characterized by alterations in the core components of cognitive function and age-related disease progression, persist in the post-cART era. However, the neurobehavioral mechanisms that mediate alterations in the core components of cognitive function and the progression of neurocognitive impairments have yet to be systematically evaluated. To address this knowledge gap, statistical mediation analysis was assessed, providing a critical opportunity to empirically evaluate putative neurobehavioral mechanisms underlying HAND. Neurocognitive assessments, conducted in HIV-1 transgenic (Tg) and control animals across the functional lifespan (i.e., Postnatal Day (PD) 30 to PD 600), tapped multiple cognitive domains including preattentive processes, learning, sustained attention, and long-term episodic memory. Three longitudinal mediation models were utilized to assess whether deficits in preattentive processes mediate alterations in learning, sustained attention and/or long-term episodic memory over time. Preattentive processes partially mediated the relationship between genotype and learning, genotype and sustained attention, and genotype and long-term episodic memory across the functional lifespan, explaining between 44% and 58% of the HIV-1 transgene effect. Understanding the neurobehavioral mechanisms mediating alterations in HAND may provide key targets for the development of a diagnostic biomarker, novel therapeutics, and cure/restoration strategies.
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Affiliation(s)
- Kristen A McLaurin
- University of South Carolina, Department of Psychology, Program in Behavioral Neuroscience, Columbia, SC, USA
| | - Charles F Mactutus
- University of South Carolina, Department of Psychology, Program in Behavioral Neuroscience, Columbia, SC, USA.
| | - Rosemarie M Booze
- University of South Carolina, Department of Psychology, Program in Behavioral Neuroscience, Columbia, SC, USA
| | - Amanda J Fairchild
- University of South Carolina, Department of Psychology, Columbia, SC, USA.
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Prats A, López-Masramon E, Pérez-Álvarez N, Garolera M, Fumaz CR, Ferrer MJ, Clotet B, Muñoz-Moreno JA. NEU Screen Shows High Accuracy in Detecting Cognitive Impairment in Older Persons Living With HIV. J Assoc Nurses AIDS Care 2019; 30:35-41. [PMID: 30586082 DOI: 10.1097/jnc.0000000000000003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The NEUrocognitive (NEU) Screen is a practical tool proposed to screen for HIV-associated cognitive impairment in the clinical setting. This is a pencil-and-paper method that can be applied rapidly (≤10 minutes for administration) and has no copyright limitations. In this study, we aimed at investigating its diagnostic accuracy in an older population of persons living with HIV (PLWH), with cutoffs set at 30, 40, 50, and 60 years. Data were collected from a sample of 368 PLWH who underwent a comprehensive neuropsychological tests battery (gold standard). Results of statistical tests showed that accuracy of the NEU Screen increased with age of the participants. The highest degree of precision, with a sensitivity of 91% and specificity of 92%, was obtained for people ages 60 years or older (correct classification: 91%). These optimal results point to the great potential of the NEU Screen as a tool for detecting cognitive disorders in older PLWH.
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Affiliation(s)
- Anna Prats
- Anna Prats, MS, is Neuropsychologist, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain; and Doctoral Candidate, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Catalonia, Spain. Estela López-Masramon, MS, is Neuropsychologist, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain. Núria Pérez-Álvarez, PhD, is Statistician, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain; and Assistant Professor, Universitat Politècnica de Catalunya, Barcelona, Catalonia, Spain. Maite Garolera, PhD, is Neuropsychologist, Clinical Research Group for Brain, Cognition and Behavior, Consorci Sanitari Hospital de Terrassa, Terrassa, Catalonia, Spain; and Senior Researcher, Grup de Recerca Consolidat en Neuropsicologia, Universitat de Barcelona, Barcelona, Catalonia, Spain. Carmina R. Fumaz, PhD, is Psychologist, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain. Maria J. Ferrer, MS, is Psychologist, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain. Bonaventura Clotet, PhD, is Physician, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain; Senior Researcher, Institut per la Recerca de la SIDA, IrsiCaixa Badalona, Catalonia, Spain; and Professor, Universitat de Vic, Vic, Catalonia, Spain. Jose A. Muñoz-Moreno, PhD, is Psychologist, Fundació Lluita contra la SIDA, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain; and Assistant Professor, Facultat de Psicologia i Ciències de l'Educació, Universitat Oberta de Catalunya, Barcelona, Catalonia, Spain
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Screening for HIV-Associated Neurocognitive Impairment: Relevance of Psychological Factors and Era of Commencement of Antiretroviral Therapy. J Assoc Nurses AIDS Care 2019; 30:42-50. [PMID: 30586348 PMCID: PMC6907420 DOI: 10.1097/jnc.0000000000000040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Neurocognitive impairment (NCI) is common in people aging with HIV and can adversely affect health-related quality of life. However, early NCI may be largely asymptomatic and neurocognitive function is rarely assessed in the context of routine clinical care. In this study, we considered the utility of two assessment tools as screens for NCI in patients attending a community-based clinic (N = 58; mean age = 57 years): the Montreal Cognitive Assessment (MoCA) and a 3-item cognitive concerns questionnaire derived from the HIV Dementia Scale. Health-related quality of life and depression/anxiety were also measured. Indication of NCI using the MoCA was more prevalent compared to the 3-item questionnaire and was associated with the patients' initial antiretroviral therapy commencing between the years of 1997 and 2001, independently of age. Findings of the MoCA were not confounded by existing mood disorders, unlike the 3-item questionnaire. Therefore, we suggest implementing the MoCA as an initial screen for NCI.
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Mwangala PN, Newton CR, Abas M, Abubakar A. Screening tools for HIV-associated neurocognitive disorders among adults living with HIV in sub-Saharan Africa: A scoping review. AAS Open Res 2019; 1:28. [PMID: 31844836 PMCID: PMC6914359 DOI: 10.12688/aasopenres.12921.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2019] [Indexed: 01/16/2023] Open
Abstract
Background: People living with HIV are at risk of developing HIV-associated neurocognitive disorders (HAND) which adversely affects their quality of life. Routine screening of HAND in HIV care is recommended to identify clinically important changes in cognitive functioning and allow for early interventions. However, HAND detection in routine clinical practice has never been reported in sub-Saharan Africa (SSA), partly due to a lack of adequately standardized screening tools. This review was conducted to identify the commonly used screening tools for HAND in SSA and document their psychometric properties and diagnostic accuracy. Methods: We searched Ovid Medline, PsycINFO and Web of Sciences databases for empirical studies published from 1/1/1980 to 31/8/2018 on HAND among adults living with HIV in SSA. Results: We identified 14 eligible studies, of which 9 were from South Africa. The International HIV Dementia Scale (IHDS) was the most frequently reported tool, being used in more than half of the studies. However most studies only reported the diagnostic accuracy of this and other tools, with specificity ranging from 37% to 81% and sensitivity ranging from 45% to 100%. Appropriate data on construct validity and reliability of tools was rarely documented. Although most tools performed well in screening for severe forms of HAND, they lacked sensitivity and specificity for mild forms of HAND. NeuroScreen, one of the newer tools, yielded good diagnostic accuracy in its initial evaluation in South Africa (81% to 93% sensitivity and 71% to 81% specificity). Conclusions: This review identified a lack of adequately standardized and contextually relevant HAND screening tools in SSA. Most screening tools for HAND used in SSA possess inadequate psychometric properties and diagnostic accuracy. There is a need for further validation of existing tools and development of new HAND screening tools in SSA.
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Affiliation(s)
- Patrick N Mwangala
- Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute (KEMRI), Kilifi, P.O BOX 230 - 80108, Kenya
| | - Charles R Newton
- Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute (KEMRI), Kilifi, P.O BOX 230 - 80108, Kenya.,Department of Psychiatry, University of Oxford, Warneford Hospital, Warneford Ln, Oxford OX3 7JX, UK.,Department of Public Health, Pwani University, Kilifi, P.O. BOX 195-80108, Kenya
| | - Melanie Abas
- Institute of Psychiatry, Psychology & Neuroscience, King's College London, 16 De Crespigny Park, London SE5 8AF, UK
| | - Amina Abubakar
- Centre for Geographic Medicine Research Coast, Kenya Medical Research Institute (KEMRI), Kilifi, P.O BOX 230 - 80108, Kenya.,Department of Psychiatry, University of Oxford, Warneford Hospital, Warneford Ln, Oxford OX3 7JX, UK.,Department of Public Health, Pwani University, Kilifi, P.O. BOX 195-80108, Kenya.,Institute for Human Development, Aga Khan University, 2nd Parklands Avenue, Nairobi, P.O. BOX 30270-00100, Kenya
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Tomita A, Ramlall S, Naidu T, Mthembu SS, Padayatchi N, Burns JK. Neurocognitive Impairment Risk Among Individuals With Multiple Drug-Resistant Tuberculosis and Human Immunodeficiency Virus Coinfection: Implications for Systematic Linkage to and Retention of Care in Tuberculosis/Human Immunodeficiency Virus Treatment. J Nerv Ment Dis 2019; 207:307-310. [PMID: 30920478 PMCID: PMC6541922 DOI: 10.1097/nmd.0000000000000962] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Although neurocognitive impairment (NCI) is a well-recognized challenge in human immunodeficiency virus (HIV), there is little evidence regarding it among individuals with multiple drug-resistant tuberculosis (MDR-TB) within HIV endemic sub-Saharan Africa. The extent of NCI risk, particularly HIV-associated neurocognitive disorders (HAND) risk, was investigated in 200 microbiologically confirmed inpatients with MDR-TB at a TB-specialist hospital in KwaZulu-Natal Province, South Africa. Within this population, the prevalence of HIV coinfection, major depressive episode, and substance use disorder was 89.50%, 10.50%, and 7.00%, respectively. After excluding individuals with major depressive episode/substance use disorder and monoinfection (i.e., MDR-TB without HIV), the prevalence of HAND risk was 43.5%. Older and low-income individuals had significantly greater odds of HAND risk, whereas those with family members/relatives who work(ed) in the health services had lower odds. The role of timely linkage to and retention of care in TB/HIV treatment to offset cognitive decline in MDR-TB/HIV coinfected individuals needs to be investigated further.
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Affiliation(s)
- Andrew Tomita
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for Rural Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Suvira Ramlall
- Department of Psychiatry, University of KwaZulu-Natal, Durban, South Africa
| | - Thirusha Naidu
- Department of Behavioural Medicine, University of KwaZulu-Natal, Durban, South Africa
| | | | - Nesri Padayatchi
- MRC HIV-TB Pathogenesis and Treatment Research Unit, Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
| | - Jonathan K. Burns
- Department of Psychiatry, University of KwaZulu-Natal, Durban, South Africa
- Institute of Health Research, University of Exeter, Exeter, United Kingdom
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Brouillette MJ, Fellows LK, Finch L, Thomas R, Mayo NE. Properties of a brief assessment tool for longitudinal measurement of cognition in people living with HIV. PLoS One 2019; 14:e0213908. [PMID: 30908501 PMCID: PMC6433222 DOI: 10.1371/journal.pone.0213908] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/04/2019] [Indexed: 11/18/2022] Open
Abstract
Background Mild cognitive impairment is common in chronic HIV infection and there is concern that it may worsen with age. Distinguishing static impairment from on-going decline is clinically important, but the field lacks well-validated cognitive measures sensitive to decline and feasible for routine clinical use. Measures capable of detecting improvement are also needed to assess interventions. The objective of this study is to estimate the extent of change on repeat administration of three different forms of a brief computerized cognitive assessment battery (B-CAM) developed for assessing cognitive ability in the mildly-impaired to normal range in people living with HIV. We hypothesized no change over a six-month period in people on effective antiretroviral therapy. Methods 102 HIV+ individuals completed a set of computerized cognitive tasks on three occasions over a six-month period. Rasch analysis was used to determine if change over time (i.e. improvement due to practice) was uniform across tasks and to refine scoring in order to produce three forms of the B-CAM of equivalent level of difficulty. Group-based trajectory analysis (GBTA) was then applied to determine if performance at baseline influenced the magnitude of practice-related improvement on the battery as a whole over the course of follow-up. Results Two cognitive tasks (fluency and word recall) had different levels of difficulty across test sessions, related to the different forms of the tasks. These two items were split by testing session. For all other items, the level of difficulty remained constant across all three time points. GBTA showed that the sample was composed of three distinct groups of people with unique trajectories, defined mainly by level of cognitive ability at baseline. Only the highest group showed an apparent improvement over time, but this change fell within measurement error. Conclusions Rasch analysis provides mathematical confirmation that these three forms of the B-CAM are of equivalent difficulty. GBTA demonstrates that no adjustment of the total score is required to correct for practice effects. Application of these modern statistical methods paves the way towards rapid and robust quantification of change in cognition.
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Affiliation(s)
- Marie-Josée Brouillette
- Department of Psychiatry, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Chronic Viral Illness Service, McGill University Health Center, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- * E-mail:
| | - Lesley K. Fellows
- Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Lois Finch
- Division of Clinical Epidemiology, McGill University Health Center, Montreal, Quebec, Canada
| | - Réjean Thomas
- Clinique médicale l’Actuel, Montreal, Quebec, Canada
| | - Nancy E. Mayo
- Division of Clinical Epidemiology, McGill University Health Center, Montreal, Quebec, Canada
- School of Physical and Occupational Therapy, Faculty of Medicine, McGill University Montreal, Quebec, Canada
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Aging, comorbidities, and the importance of finding biomarkers for HIV-associated neurocognitive disorders. J Neurovirol 2019; 25:673-685. [PMID: 30868422 DOI: 10.1007/s13365-019-00735-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/01/2019] [Accepted: 02/14/2019] [Indexed: 01/08/2023]
Abstract
HIV-associated neurocognitive disorders (HAND) continue to affect a large proportion of persons living with HIV despite effective viral suppression with combined antiretroviral therapy (cART). Importantly, milder versions of HAND have become more prevalent. The pathogenesis of HAND in the era of cART appears to be multifactorial with contributions from central nervous system (CNS) damage that occur prior to starting cART, chronic immune activation, cART neurotoxicity, and various age-related comorbidities (i.e., cardiovascular and cerebrovascular disease, diabetes, hyperlipidemia). Individuals with HIV may experience premature aging, which could also contribute to cognitive impairment. Likewise, degenerative disorders aside from HAND increase with age and there is evidence of shared pathology between HAND and other neurodegenerative diseases, such as Alzheimer's disease, which can occur with or without co-existing HAND. Given the aforementioned complex interactions associated with HIV, cognitive impairment, and aging, it is important to consider an age-appropriate differential diagnosis for HAND as the HIV-positive population continues to grow older. These factors make the accuracy and reliability of the diagnosis of mild forms of HAND in an aging population of HIV-infected individuals challenging. The complexity of current diagnosis of mild HAND also highlights the need to develop reliable biomarkers. Ultimately, the identification of a set of specific biomarkers will be required to achieve early and accurate diagnosis, which will be necessary assuming specific treatments for HAND are developed.
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Diagnostic and prognostic biomarkers for HAND. J Neurovirol 2019; 25:686-701. [PMID: 30607890 DOI: 10.1007/s13365-018-0705-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023]
Abstract
In 2007, the nosology for HIV-1-associated neurocognitive disorders (HAND) was updated to a primarily neurocognitive disorder. However, currently available diagnostic tools lack the sensitivity and specificity needed for an accurate diagnosis for HAND. Scientists and clinicians, therefore, have been on a quest for an innovative biomarker to diagnose (i.e., diagnostic biomarker) and/or predict (i.e., prognostic biomarker) the progression of HAND in the post-combination antiretroviral therapy (cART) era. The present review examined the utility and challenges of four proposed biomarkers, including neurofilament light (NFL) chain concentration, amyloid (i.e., sAPPα, sAPPβ, amyloid β) and tau proteins (i.e., total tau, phosphorylated tau), resting-state functional magnetic resonance imaging (fMRI), and prepulse inhibition (PPI). Although significant genotypic differences have been observed in NFL chain concentration, sAPPα, sAPPβ, amyloid β, total tau, phosphorylated tau, and resting-state fMRI, inconsistencies and/or assessment limitations (e.g., invasive procedures, lack of disease specificity, cost) challenge their utility as a diagnostic and/or prognostic biomarker for milder forms of neurocognitive impairment (NCI) in the post-cART era. However, critical evaluation of the literature supports the utility of PPI as a powerful diagnostic biomarker with high accuracy (i.e., 86.7-97.1%), sensitivity (i.e., 89.3-100%), and specificity (i.e., 79.5-94.1%). Additionally, the inclusion of multiple CSF and/or plasma markers, rather than a single protein, may provide a more sensitive diagnostic biomarker for HAND; however, a pressing need for additional research remains. Most notably, PPI may serve as a prognostic biomarker for milder forms of NCI, evidenced by its ability to predict later NCI in higher-order cognitive domains with regression coefficients (i.e., r) greater than 0.8. Thus, PPI heralds an opportunity for the development of a brief, noninvasive diagnostic and promising prognostic biomarker for milder forms of NCI in the post-cART era.
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Mwangala PN, Newton CR, Abas M, Abubakar A. Screening tools for HIV-associated neurocognitive disorders among adults living with HIV in sub-Saharan Africa: A scoping review. AAS Open Res 2018. [DOI: 10.12688/aasopenres.12921.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: People living with HIV are at risk of developing HIV-associated neurocognitive disorders (HAND) which adversely affects their quality of life. Routine screening of HAND in HIV care is recommended to identify subtle changes in cognitive functioning and allow for early interventions. However, HAND detection is rarely done in sub-Saharan Africa (SSA), partly due to a lack of adequately standardized screening tools. This review was conducted to identify the commonly used screening tools for HAND in SSA and document their psychometric properties and diagnostic accuracy.Methods:We searched Ovid Medline, PsycINFO and Web of Sciences databases for empirical studies published from 1/1/1980 to 31/8/2018 on HAND among adults living with HIV in SSA.Results:We identified 14 eligible studies, of which 9 were from South Africa. The International HIV Dementia Scale (IHDS) was the most frequently reported tool, being used in more than half of the studies. However most studies only reported the diagnostic accuracy of this and other tools, with specificity ranging from 37% to 81% and sensitivity ranging from 45% to 100%. Appropriate data on construct validity and reliability of tools was rarely documented. Although most tools performed well in screening for severe forms of HAND, they lacked sensitivity and specificity for moderate forms of HAND. NeuroScreen, one of the newer tools, yielded good diagnostic accuracy in its initial evaluation in South Africa (81% to 93% sensitivity and 71% to 81% specificity).Conclusions:This review identified a lack of adequately standardized and contextually relevant HAND screening tools in SSA. Most screening tools for HAND used in SSA possess inadequate psychometric properties and diagnostic accuracy. There is a need for further validation of existing tools and development of new tools to make them sensitive and specific enough to identify both severe and moderate forms of HAND in SSA.
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Toro P, Ceballos ME, Pesenti J, Inostroza M, Valenzuela D, Henríquez F, Forno G, Herold C, Schröder J, Calderón J. Neurological soft signs as a marker of cognitive impairment severity in people living with HIV. Psychiatry Res 2018; 266:138-142. [PMID: 29870954 DOI: 10.1016/j.psychres.2018.04.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 03/19/2018] [Accepted: 04/22/2018] [Indexed: 12/24/2022]
Abstract
HIV-associated neurocognitive disorders (HAND) include asymptomatic neurocognitive impairment (ANI), mild neurocognitive disorder (MND) and HIV-associated dementia. Early recognition of HAND is crucial, and usually requires thorough neuropsychological testing. Neurological soft signs (NSS), i.e. minor motor and sensory changes, a common feature in severe psychiatric disorders, may facilitate early diagnosis. NSS were examined using the Heidelberg NSS Scale in 18 patients with ANI, 21 with MND, 28 HIV positive patients without HAND, and 39 healthy controls matched for age, gender, and education. The highest NSS scores were obtained in the MND patients (13.3 ± 10.0, p < 0.0001) followed by those with ANI (11.7 ± 10.6), the HIV positive subjects without neurocognitive deficits (8.0 ± 4.1) and the healthy controls (3.8 ± 3.2). This result was confirmed when age and years of school education were entered as covariates. No significant correlations between NSS and CD4 counts or any other clinical variables were found among the HIV positive groups. Our results demonstrate that NSS are frequently found in both ANI and MND but not HIV positive patients without neurocognitive deficits. NSS may facilitate the screening of HIV positive patients for ANI and MND as an easier and less expensive clinical tool.
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Affiliation(s)
- Pablo Toro
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile; Advanced Center for Chronic Disease (ACCDiS), Medicine School, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - María Elena Ceballos
- Department of Infectious Diseases, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - José Pesenti
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - María Inostroza
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Daniela Valenzuela
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Fernando Henríquez
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Gonzalo Forno
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Christina Herold
- Section of Geriatric Psychiatry, University of Heidelberg, Heidelberg, Germany
| | - Johannes Schröder
- Section of Geriatric Psychiatry, University of Heidelberg, Heidelberg, Germany
| | - Jorge Calderón
- Department of Psychiatry, Medicine School, Pontificia Universidad Catolica de Chile, Santiago, Chile
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Bruce RD, Merlin J, Lum PJ, Ahmed E, Alexander C, Corbett AH, Foley K, Leonard K, Treisman GJ, Selwyn P. 2017 HIVMA of IDSA Clinical Practice Guideline for the Management of Chronic Pain in Patients Living With HIV. Clin Infect Dis 2018; 65:e1-e37. [PMID: 29020263 DOI: 10.1093/cid/cix636] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 07/19/2017] [Indexed: 12/27/2022] Open
Abstract
Pain has always been an important part of human immunodeficiency virus (HIV) disease and its experience for patients. In this guideline, we review the types of chronic pain commonly seen among persons living with HIV (PLWH) and review the limited evidence base for treatment of chronic noncancer pain in this population. We also review the management of chronic pain in special populations of PLWH, including persons with substance use and mental health disorders. Finally, a general review of possible pharmacokinetic interactions is included to assist the HIV clinician in the treatment of chronic pain in this population.It is important to realize that guidelines cannot always account for individual variation among patients. They are not intended to supplant physician judgment with respect to particular patients or special clinical situations. The Infectious Diseases Society of American considers adherence to these guidelines to be voluntary, with the ultimate determination regarding their application to be made by the physician in the light of each patient's individual circumstances.
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Affiliation(s)
- R Douglas Bruce
- Department of Medicine, Cornell Scott-Hill Health Center and Yale University, New Haven, Connecticut
| | - Jessica Merlin
- Divisions of Infectious Diseases and Gerontology, Geriatrics and Palliative Care, University of Alabama at Birmingham
| | - Paula J Lum
- Division of HIV, Infectious Disease, and Global Medicine, University of California San Francisco
| | - Ebtesam Ahmed
- St. Johns University College of Pharmacy and Health Sciences, Metropolitan Jewish Health System Institute for Innovation in Palliative Care, New York
| | - Carla Alexander
- University of Maryland School of Medicine, Institute of Human Virology, Baltimore
| | - Amanda H Corbett
- Eshelman School of Pharmacy, University of North Carolina, Chapel Hill
| | - Kathleen Foley
- Attending Neurologist Emeritus, Memorial Sloan Kettering Cancer Center, New York
| | - Kate Leonard
- Division of Neuroscience and Clinical Pharmacology, Cornell University, New York, New York
| | | | - Peter Selwyn
- Department of Family and Social Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
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Trunfio M, Vai D, Montrucchio C, Alcantarini C, Livelli A, Tettoni MC, Orofino G, Audagnotto S, Imperiale D, Bonora S, Di Perri G, Calcagno A. Diagnostic accuracy of new and old cognitive screening tools for HIV-associated neurocognitive disorders. HIV Med 2018; 19:455-464. [PMID: 29761877 DOI: 10.1111/hiv.12622] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Considering the similarities between HIV-associated neurocognitive disorders (HAND) and neurodegenerative dementias and the frequency of executive dysfunctions among HIV-positive patients, we evaluated the accuracy of the Frontal Assessment Battery and Clock-Drawing Test together with the Three Questions Test and International HIV Dementia Scale to screen for HAND. METHODS A cross-sectional monocentric study was conducted from 2010 to 2017. The index tests were represented by the four screening tools; the reference standard was represented by a comprehensive neurocognitive battery used to investigate 10 cognitive domains. Patients were screened by a trained infectious diseases physician and those showing International HIV Dementia Scale scores ≤ 10 and/or complaining of neurocognitive symptoms were then evaluated by a trained neuropsychologist. RESULTS A total of 650 patients were screened and 281 received the full neurocognitive evaluation. HAND was diagnosed in 140 individuals. The sensitivity, specificity, correct classification rate and area under the receiver operating characteristic curve (AUROC) were, respectively, as follows: Frontal Assessment Battery, 40.7%, 95.1%, 68.3% and 0.81; International HIV Dementia Scale, 74.4%, 56.8%, 65.4% and 0.73; Clock-Drawing Test, 30.9%, 73.4%, 53.8% and 0.56; and Three Questions Test, 37.3%, 54.1% and 45.7%. Raising the Frontal Assessment Battery's cut-off to ≤ 16 improved its sensitivity, specificity and correct classification rate to 78.0%, 63.9% and 70.8%, respectively. CONCLUSIONS We observed poor screening performances of the Three Questions and Clock-Drawing Tests. While the International HIV Dementia Scale showed a poor specificity, the Frontal Assessment Battery showed the highest correct classification rate and a promising performance at different exploratory cut-offs.
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Affiliation(s)
- M Trunfio
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - D Vai
- Unit of Neurology, Maria Vittoria Hospital, Torino, Italy
| | - C Montrucchio
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - C Alcantarini
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - A Livelli
- Unit of Infectious Diseases, Divisione A, Amedeo di Savoia Hospital, Torino, Italy
| | - M C Tettoni
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - G Orofino
- Unit of Infectious Diseases, Divisione A, Amedeo di Savoia Hospital, Torino, Italy
| | - S Audagnotto
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - D Imperiale
- Unit of Neurology, Maria Vittoria Hospital, Torino, Italy
| | - S Bonora
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - G Di Perri
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
| | - A Calcagno
- Department of Medical Sciences, Unit of Infectious Diseases, Amedeo di Savoia Hospital, University of Torino, Torino, Italy
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Terpstra AR, Worthington C, Ibáñez-Carrasco F, O'Brien KK, Yamamoto A, Chan Carusone S, Baltzer Turje R, McDougall P, Granger W, Thompson V, DeSousa M, Creal L, Rae A, Medina C, Morley E, Rourke SB. "I'm Just Forgetting and I Don't Know Why": Exploring How People Living With HIV-Associated Neurocognitive Disorder View, Manage, and Obtain Support for Their Cognitive Difficulties. QUALITATIVE HEALTH RESEARCH 2018; 28:859-872. [PMID: 29676675 DOI: 10.1177/1049732318761364] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
HIV-associated neurocognitive disorder (HAND) is common, but the lived experience of HAND is not well-understood. In this descriptive qualitative study, we explored how adults with HAND view, manage, and obtain support for cognitive difficulties. We interviewed 25 participants (20% female; median age = 51 years) who were diagnosed with HAND using neuropsychological assessment and a clinical interview. Semistructured interviews, co-developed with community members living with HIV, focused on how cognitive difficulties manifested and progressed, impacted well-being, and were discussed with others. We analyzed interview transcripts using a team-based, thematic approach. Participants described concentration, memory, and multitasking difficulties that fluctuated over time, as well as potential risk factors, management strategies, and psychosocial consequences. They reported they seldom discussed cognitive impairment with health care professionals, and that receiving a HAND diagnosis was validating, informative, yet somewhat disconcerting. Conversations between health care professionals and people living with HIV about HAND may provide opportunities for education, assessment, and support.
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Affiliation(s)
| | | | | | | | - Aiko Yamamoto
- 5 St. Paul's Hospital, Vancouver, British Columbia, Canada
| | | | | | | | - William Granger
- 7 Dr. Peter AIDS Foundation, Vancouver, British Columbia, Canada
| | - Victor Thompson
- 7 Dr. Peter AIDS Foundation, Vancouver, British Columbia, Canada
| | - Maureen DeSousa
- 7 Dr. Peter AIDS Foundation, Vancouver, British Columbia, Canada
| | - Liz Creal
- 6 Casey House, Toronto, Ontario, Canada
| | - Allan Rae
- 8 Ontario HIV Treatment Network, Toronto, Ontario, Canada
| | - Claudia Medina
- 8 Ontario HIV Treatment Network, Toronto, Ontario, Canada
| | | | - Sean B Rourke
- 3 St. Michael's Hospital, Toronto, Ontario, Canada
- 4 University of Toronto, Ontario, Canada
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Robbins RN, Gouse H, Brown HG, Ehlers A, Scott TM, Leu CS, Remien RH, Mellins CA, Joska JA. A Mobile App to Screen for Neurocognitive Impairment: Preliminary Validation of NeuroScreen Among HIV-Infected South African Adults. JMIR Mhealth Uhealth 2018; 6:e5. [PMID: 29305338 PMCID: PMC5775487 DOI: 10.2196/mhealth.9148] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/21/2017] [Accepted: 11/23/2017] [Indexed: 11/20/2022] Open
Abstract
Background Neurocognitive impairment (NCI) is one of the most common complications of HIV infection, and has serious medical and functional consequences. South Africa has 7 million people living with HIV (PLHIV) with up to three-quarters of antiretroviral therapy (ART)-naïve individuals having NCI. South Africa’s health system struggles to meet the care needs of its millions of PLHIV; screening for NCI is typically neglected due to limited clinical staff trained to administer, score, and interpret neuropsychological tests, as well as long test batteries and limited screening tools for South African populations. Without accurate, clinically useful, and relatively brief NCI screening tests that can be administered by all levels of clinical staff, critical opportunities to provide psychoeducation, behavioral planning, additional ART adherence support, and adjuvant therapies for NCI (when they become available) are missed. To address these challenges and gap in care, we developed an mHealth app screening tool, NeuroScreen, to detect NCI that can be administered by all levels of clinical staff, including lay health workers. Objective The purpose of this study was to examine sensitivity and specificity of an adapted version of NeuroScreen to detect NCI (as determined by a gold standard neuropsychological test battery administered by a trained research psychometrist) among HIV-infected South Africans when administered by a lay health worker. Methods A total of 102 HIV-infected black South African adults who had initiated ART at least 12 months prior were administered NeuroScreen and a gold standard neuropsychological test battery in the participants’ choice of language (ie, English or isiXhosa). Three composite z scores were calculated for NeuroScreen: (1) sum of all individual test scores, (2) sum of all individual test scores and error scores from four tests, and (3) sum of four tests (abbreviated version). Global deficit scores were calculated for the gold standard battery where a score of 0.5 or greater indicated the presence of NCI. Results The mean age of participants was 33.31 (SD 7.46) years, most (59.8%, 61/102) had at least 12 years of education, and 81.4% (83/102) of the sample was female. Gold standard test battery results indicated that 26.5% (27/102) of the sample had NCI. Sensitivity and specificity of age-, education-, and sex-adjusted NeuroScreen scores were 81.48% and 74.67% for composite score 1, 81.48% and 81.33% for composite score 2, and 92.59% and 70.67% for composite score 3, respectively. Conclusions NeuroScreen, a highly automated, easy-to-use, tablet-based screening test to detect NCI among English- and isiXhosa-speaking South African HIV patients demonstrated robust sensitivity and specificity to detect NCI when administered by lay health workers. NeuroScreen could help make screening for NCI more feasible. However, additional research is needed with larger samples and normative test performance data are needed.
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Affiliation(s)
- Reuben N Robbins
- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, New York State Psychiatric Institute & Columbia University, New York, NY, United States
| | - Hetta Gouse
- HIV Mental Health Research Unit, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | | | | | - Travis M Scott
- Department of Psychology, Fordham University, Bronx, NY, United States
| | - Cheng-Shiun Leu
- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, New York State Psychiatric Institute & Columbia University, New York, NY, United States
| | - Robert H Remien
- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, New York State Psychiatric Institute & Columbia University, New York, NY, United States
| | - Claude A Mellins
- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, New York State Psychiatric Institute & Columbia University, New York, NY, United States
| | - John A Joska
- HIV Mental Health Research Unit, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
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The Montreal Cognitive Assessment-Basic (MoCA-B) is not a reliable screening tool for cognitive decline in HIV patients receiving combination antiretroviral therapy in rural South Africa. Int J Infect Dis 2017; 67:36-40. [PMID: 29183843 DOI: 10.1016/j.ijid.2017.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 10/25/2017] [Accepted: 11/21/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND HIV-associated neurocognitive disorders (HAND) are frequently occurring comorbidities in HIV-positive patients, diagnosed by means of a neuropsychological assessment (NPA). Due to the magnitude of the HIV-positive population in Sub-Saharan Africa, easy-to-use cognitive screening tools are essential. METHODS This was a cross-sectional clinical trial involving 44 HIV-positive patients (on stable cART) and 73 HIV-negative controls completing an NPA, the International HIV Dementia Scale (IHDS), and a culturally appropriate cognitive screening tool, the Montreal Cognitive Assessment-Basic (MoCA-B). HAND were diagnosed by calculating Z-scores using internationally published normative data on NPA, as well as by using data from the HIV-negative group to validate the MoCA-B. RESULTS One hundred and seventeen patients were included (25% male, median age 35 years, median 11 years of education). A moderate correlation was found between the MoCA-B and NPA total Z-score (Pearson's r=0.36, p=0.02). Area under the curve (AUC) values for MoCA-B and IHDS were 0.59 and 0.70, respectively. The prevalence of HAND in HIV-positive patients was 66% when calculating Z-scores using published normative data versus 48% when using the data from the present HIV-negative cohort. CONCLUSION The MoCA-B appeared not to be a valid screening tool for HAND in this setting. The prevalence of HAND in this setting is high, but appeared overestimated when using published norms.
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López E, Steiner AJ, Smith K, Thaler NS, Hardy DJ, Levine AJ, Al-Kharafi HT, Yamakawa C, Goodkin K. Diagnostic utility of the HIV dementia scale and the international HIV dementia scale in screening for HIV-associated neurocognitive disorders among Spanish-speaking adults. APPLIED NEUROPSYCHOLOGY. ADULT 2017; 24:512-521. [PMID: 27712132 PMCID: PMC5938065 DOI: 10.1080/23279095.2016.1214835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Given that neurocognitive impairment is a frequent complication of HIV-1 infection in Spanish-speaking adults, the limited number of studies assessing HIV-associated neurocognitive disorders (HAND) in this population raises serious clinical concern. In addition to being appropriately translated, instruments need to be modified, normed, and validated accordingly. The purpose of the current study was to examine the diagnostic utility of the HIV Dementia Scale (HDS) and International HIV Dementia Scale (IHDS) to screen for HAND in Spanish-speaking adults living with HIV infection. Participants were classified as either HAND (N = 47) or No-HAND (N = 53) after completing a comprehensive neuropsychological evaluation. Receiver operating characteristic analyses found the HDS (AUC = .706) was more sensitive to detecting HAND than the IHDS (AUC = .600). Optimal cutoff scores were 9.5 for the HDS (PPV = 65.2%, NPV = 71.4%) and 9.0 for the IHDS (PPV = 59.4%, NPV = 59.1%). Canonical Correlation Analysis found the HDS converged with attention and executive functioning. Findings suggest that while the IHDS may not be an appropriate screening instrument with this population, the HDS retains sufficient statistical validity and clinical utility to screen for HAND in Spanish-speaking adults as a time-efficient and cost-effective measure in clinical settings with limited resources.
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Affiliation(s)
- Enrique López
- Department of Psychiatry and Behavioral Neurosciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Alexander J. Steiner
- Department of Psychiatry and Behavioral Neurosciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Department of Psychology, California School of Professional Psychology, Alliant International University, Alhambra, California, USA
| | - Kimberly Smith
- Department of Psychiatry and Behavioral Neurosciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Nicholas S. Thaler
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - David J. Hardy
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- Department of Psychology, Loyola Marymount University, Los Angeles, California, USA
| | - Andrew J. Levine
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, California, USA
| | - Hussah T. Al-Kharafi
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- Graduate School of Education and Psychology, Pepperdine University, Los Angeles, California, USA
| | - Cristina Yamakawa
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Karl Goodkin
- Department of Psychiatry and Behavioral Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee, USA
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45
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Kamminga J, Lal L, Wright EJ, Bloch M, Brew BJ, Cysique LA. Monitoring HIV-Associated Neurocognitive Disorder Using Screenings: a Critical Review Including Guidelines for Clinical and Research Use. Curr HIV/AIDS Rep 2017; 14:83-92. [PMID: 28284004 DOI: 10.1007/s11904-017-0349-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Screening tools to identify HIV-associated neurocognitive disorder (HAND) are primarily devised to detect cognitive impairment on a single occasion. With the chronicity of HIV infection and the risk of HAND developing or progressing despite viral control, it may be pertinent to repeat HAND screening at more than one time point. Despite this, there are limited data on longitudinal use of such screening tools, particularly with regard to the role of practice effects. Additionally, no guidelines currently exist on the timeframe between testing intervals, or recommendation of the magnitude of baseline impairment that warrants follow-up testing. The aim of the current paper was to review existing evidence for longitudinal validity of HAND screening tools. Only those HAND screening tools previously found to have high cross-sectional criterion validity were included. Preliminary recommendations for clinical use and future research are proposed including in international settings.
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Affiliation(s)
- Jody Kamminga
- Neuroscience Research Australia, 139 Barker Street, Randwick, NSW, 2031, Australia.,Ongoing and Extended Care Services, Hunter New England Local Health District, Armidale Community Health, Armidale, NSW, 2350, Australia
| | - Luxshimi Lal
- The Burnet Institute, Melbourne, VIC, 3004, Australia.,The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - Edwina J Wright
- The Burnet Institute, Melbourne, VIC, 3004, Australia.,The Alfred Hospital, Melbourne, VIC, 3004, Australia.,Monash University, Clayton, VIC, 3800, Australia
| | - Mark Bloch
- Faculty of Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia.,Holdsworth House Medical Practice, Sydney, NSW, 2000, Australia
| | - Bruce J Brew
- Faculty of Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia.,St. Vincent's Hospital Applied Medical Research Center, The Peter Duncan Neuroscience Unit, Darlinghurst, NSW, 2010, Australia.,Neurology and HIV Departments, St. Vincent's Hospital, Darlinghurst, NSW, 2010, Australia
| | - Lucette A Cysique
- Neuroscience Research Australia, 139 Barker Street, Randwick, NSW, 2031, Australia. .,Faculty of Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia. .,St. Vincent's Hospital Applied Medical Research Center, The Peter Duncan Neuroscience Unit, Darlinghurst, NSW, 2010, Australia. .,Neurology and HIV Departments, St. Vincent's Hospital, Darlinghurst, NSW, 2010, Australia.
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46
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Hakkers CS, Kraaijenhof JM, van Oers-Hazelzet EB, Visser-Meily AJ, Hoepelman AI, Arends JE, Barth RE. HIV and Cognitive Impairment in Clinical Practice: The Evaluation of a Stepwise Screening Protocol in Relation to Clinical Outcomes and Management. AIDS Patient Care STDS 2017; 31:363-369. [PMID: 28783374 DOI: 10.1089/apc.2017.0022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Neurocognitive impairment (NCI) is an increasingly important comorbidity in an ageing HIV+ population. Despite the lack of available treatment modalities, screening for NCI is recommended. In the UMC Utrecht, yearly NCI screening is done using the Montreal Cognitive Assessment (MoCA) tool and the HIV Dementia Scale (HDS). The aim of this study was to evaluate this screening protocol in relation to clinical outcomes and management. A retrospective cohort study was performed in suppressed adult HIV+ patients. Apart from the MoCa and the HDS, the Utrecht Scale for Evaluation of Rehabilitation-Participation (USER-P) and the Hospital Anxiety and Depression Scale (HADS) were performed. Patients scoring below average on cognitive screening tests or with subjective cognitive complaints were further evaluated using a standardized protocol, including optimizing cART and checking for somatic disorders. In patients with cognitive complaints and participation restrictions, cognitive rehabilitation was proposed. Two hundred eighty-six patients were screened. The vast majority were MSM with an average age of 49 years. One hundred forty-four out of 286 patients (50%) had an abnormal test score and/or had subjective cognitive complaints. Restrictions in participation were present in 23% of patients. Six patients on Efavirenz switched their regimes, as this drug is known for its potential central nervous system (CNS) side effects. A depressive component was present in 58 patients (40%). Five patients had a clinical relevant laboratory abnormality. Moreover, six patients were referred for cognitive rehabilitation, which resulted in a 100% success rate in set goals in the five evaluable patients. Although the protocol was not fully adhered to in all patients, it did result in detectable underlying causes of NCI in 59% of patients, and 21% was referred for further treatment. Moreover, cognitive rehabilitation appears to be a very successful intervention for patients with NCI who experience subjective complaints and participation restrictions.
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Affiliation(s)
- Charlotte S. Hakkers
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Jordan M. Kraaijenhof
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Esther B. van Oers-Hazelzet
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Anne J.M.A. Visser-Meily
- Department of Rehabilitation, Physical Therapy Science & Sports, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Andy I.M. Hoepelman
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Joop E. Arends
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Roos E. Barth
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
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Gouse H, Casson-Crook M, Decloedt EH, Joska JA, Thomas KGF. Adding a brief self-report cognitive tool to the IHDS improves effectiveness of identifying patients with HIV-associated dementia in South Africa. J Neurovirol 2017; 23:686-695. [PMID: 28748448 DOI: 10.1007/s13365-017-0551-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/02/2017] [Accepted: 06/25/2017] [Indexed: 01/17/2023]
Abstract
We compared the diagnostic accuracy of two brief screening tools (the International HIV Dementia Scale (IHDS), and the IHDS combined with a novel self-report instrument, the HIV Cognitive Symptom Questionnaire (HCSQ)) with that of three brief neuropsychological screening batteries (a 2-, a 3-, and a 4-test battery, each consisting of standardized cognitive tests) in discriminating individuals with HIV-associated dementia (HAD) from those with milder forms of cognitive impairment. We analyzed data from 94 isiXhosa-speaking South African HIV-infected participants who were screened as part of a clinical trial evaluating adjunctive treatment in patients with moderate to severe HIV-associated cognitive impairment. A comprehensive neuropsychological battery diagnosed 53% (50/94) of the participants with HAD. We evaluated the sensitivity and specificity for the screening tools and screening batteries. The brief screening tool performed better compared to the brief neuropsychology battery. The IHDS-HCSQ combination delivered 94% sensitivity and 63% specificity for HAD compared to the IHDS (74 and 70% at a cutoff of ≤8) which offers a viable and quick way to screen for HAD in people living with HIV. It is easy to administer, is time- and cost-efficient, and it appears to be a better option, for these purposes, than brief neuropsychology batteries. It is viable for use in clinical, research, and workplace settings when identification of HIV-infected people with severe cognitive impairment is required.
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Affiliation(s)
- Hetta Gouse
- Department of Psychiatry and Mental Health, HIV Mental Health Research Unit, University of Cape Town, Cape Town, South Africa.
| | - Martine Casson-Crook
- Department of Psychiatry and Mental Health, HIV Mental Health Research Unit, University of Cape Town, Cape Town, South Africa
| | - Eric H Decloedt
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa.,Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - John A Joska
- Department of Psychiatry and Mental Health, HIV Mental Health Research Unit, University of Cape Town, Cape Town, South Africa
| | - Kevin G F Thomas
- Department of Psychology, University of Cape Town, Cape Town, South Africa
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McLaurin KA, Moran LM, Li H, Booze RM, Mactutus CF. A Gap in Time: Extending our Knowledge of Temporal Processing Deficits in the HIV-1 Transgenic Rat. J Neuroimmune Pharmacol 2017; 12:171-179. [PMID: 27699630 PMCID: PMC5316491 DOI: 10.1007/s11481-016-9711-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 09/14/2016] [Indexed: 12/01/2022]
Abstract
Approximately 50 % of HIV-1 seropositive individuals develop HIV-1 associated neurocognitive disorders (HAND), which commonly include alterations in executive functions, such as inhibition, set shifting, and complex problem solving. Executive function deficits in HIV-1 are fairly well characterized, however, relatively few studies have explored the elemental dimensions of neurocognitive impairment in HIV-1. Deficits in temporal processing, caused by HIV-1, may underlie the symptoms of impairment in higher level cognitive processes. Translational measures of temporal processing, including cross-modal prepulse inhibition (PPI), gap-prepulse inhibition (gap-PPI), and gap threshold detection, were studied in mature (ovariectomized) female HIV-1 transgenic (Tg) rats, which express 7 of the 9 HIV-1 genes constitutively throughout development. Cross-modal PPI revealed a relative insensitivity to the manipulation of interstimulus interval (ISI) in HIV-1 Tg animals in comparison to control animals, extending previously reported temporal processing deficits in HIV-1 Tg rats to a more advanced age, suggesting the permanence of temporal processing deficits. In gap-PPI, HIV-1 Tg animals exhibited a relative insensitivity to the manipulation of ISI in comparison to control animals. In gap-threshold detection, HIV-1 Tg animals displayed a profound differential sensitivity to the manipulation of gap duration. Presence of the HIV-1 transgene was diagnosed with 91.1 % accuracy using gap threshold detection measures. Understanding the generality and permanence of temporal processing deficits in the HIV-1 Tg rat is vital to modeling neurocognitive deficits observed in HAND and provides a key target for the development of a diagnostic screening tool.
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Affiliation(s)
- Kristen A McLaurin
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA
| | - Landhing M Moran
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA
| | - Hailong Li
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA
| | - Rosemarie M Booze
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA
| | - Charles F Mactutus
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA.
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49
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Kamminga J, Bloch M, Vincent T, Carberry A, Brew BJ, Cysique LA. Determining optimal impairment rating methodology for a new HIV-associated neurocognitive disorder screening procedure. J Clin Exp Neuropsychol 2017; 39:753-767. [PMID: 28052738 DOI: 10.1080/13803395.2016.1263282] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The current study sought to determine the optimal impairment rating definition for a new HIV-associated neurocognitive disorder (HAND) screening procedure as compared to standard neuropsychological testing. METHOD A total of 55 HIV-infected (HIV+; 19% AIDS; 87% on combination antiretroviral therapy, cART; 80% plasma undetectable) and 22 demographically comparable HIV-uninfected (HIV-) control adults (all male) enrolled in an urban Australian primary care cohort study completed the CogState computerized cognitive screen, a standard independence in activities of daily living (ADL) questionnaire, and a standard neuropsychological test battery. Local or American demographically adjusted norms were applied to the neuropsychological data, taking into account premorbid reading level. CogState norms that corrected for age and sex were applied to raw CogState data. The HAND Frascati classification criteria were implemented to determine "impairment" on both the standard neuropsychological test and the CogState-based screen using two established methods: a battery-wide summary score (global deficit score; GDS), and cognitive domain rating, both combined with ADL independence data. Criterion validity was operationalized by comparing rate of impairment derived from the CogState-based screen to that obtained from the standard neuropsychological test battery first in the combined HIV- and HIV+ sample, and then in the HIV+ sample only. RESULTS In the combined sample, CogState-based screen criterion validity was higher using the GDS (79% correct classification, 73% sensitivity, 82% specificity) over the cognitive domain rating (correct classification, sensitivity, specificity all 69%) method. A similar pattern was found for the HIV+ group separately [GDS (74% correct classification, 76% sensitivity, 71% specificity) versus cognitive domain rating (64% correct classification, 72% sensitivity, 57% specificity)]. The cases that resulted in disagreement across the two methods were those with borderline impaired/unimpaired cognitive performance. CONCLUSIONS The GDS is a relatively easy statistical method for computing impairment rate when using the CogState-based screen that yields adequate criterion validity compared to standard neuropsychological testing. Feasibility of standardized test administration and appropriate interpretation of results for this CogState-based screen in primary care was enhanced by the training and consultation provided by study neuropsychologists.
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Affiliation(s)
- Jody Kamminga
- a Neuroscience Research Australia , Randwick , NSW , Australia
| | - Mark Bloch
- b Holdsworth House Medical Practice , Darlinghurst , NSW , Australia
| | - Trina Vincent
- b Holdsworth House Medical Practice , Darlinghurst , NSW , Australia
| | - Angela Carberry
- b Holdsworth House Medical Practice , Darlinghurst , NSW , Australia
| | - Bruce J Brew
- c Departments of Neurology and Infectious Diseases St. Vincent's Hospital , Darlinghurst , NSW , Australia.,d Neuroscience Program, Peter Duncan Neuroscience Unit, St. Vincent's Hospital Centre for Applied Medical Research Centre , Darlinghurst , NSW Australia.,e The University of New South Wales , Sydney , NSW , Australia Bruce
| | - Lucette A Cysique
- a Neuroscience Research Australia , Randwick , NSW , Australia.,d Neuroscience Program, Peter Duncan Neuroscience Unit, St. Vincent's Hospital Centre for Applied Medical Research Centre , Darlinghurst , NSW Australia.,e The University of New South Wales , Sydney , NSW , Australia Bruce
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50
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McLaurin KA, Booze RM, Mactutus CF. Temporal processsing demands in the HIV-1 transgenic rat: Amodal gating and implications for diagnostics. Int J Dev Neurosci 2016; 57:12-20. [PMID: 28040491 DOI: 10.1016/j.ijdevneu.2016.11.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 11/25/2022] Open
Abstract
Despite the success of combination antiretroviral therapy (cART), approximately 50% of HIV-1 seropositive individuals develop HIV-1 associated neurocognitive disorders (HAND). Unfortunately, point-of-care screening tools for HAND lack sensitivity and specificity, especially in low-resource countries. Temporal processing deficits have emerged as a critical underlying dimension of neurocognitive impairments observed in HIV-1 and may provide a key target for the development of a novel point-of-care screening tool for HAND. Cross-modal prepulse inhibition (PPI; i.e., auditory, visual, or tactile prepulse stimuli) and gap-prepulse inhibition (gap-PPI; i.e., auditory, visual or tactile prepulse stimuli), two translational experimental paradigms, were used to assess the nature of temporal processing deficits in the HIV-1 transgenic (Tg) rat. Cross-modal PPI revealed a relative insensitivity to the manipulation of interstimulus interval (ISI) in HIV-1 Tg rats in comparison to controls, regardless of prestimulus modality. Gap-PPI revealed differential sensitivity to the manipulation of ISI, independent of modality, in HIV-1 Tg rats in comparison to control animals. Manipulation of context (i.e., concurrent visual or tactile stimulus) in auditory PPI revealed a differential sensitivity in HIV-1 Tg animals compared to controls. The potential utility of amodal temporal processing deficits as an innovative point-of-care screening tool was explored using a discriminant function analysis, which diagnosed the presence of the HIV-1 transgene with 97.4% accuracy. Thus, the presence of amodal temporal processing deficits in the HIV-1 Tg rat supports the hypothesis of a central temporal processing deficit in HIV-1 seropositive individuals, heralding an opportunity for the development of a point-of-care screening tool for HAND.
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Affiliation(s)
- Kristen A McLaurin
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, Columbia, SC, 29208, United States
| | - Rosemarie M Booze
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, Columbia, SC, 29208, United States
| | - Charles F Mactutus
- Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina, Columbia, SC, 29208, United States.
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