Cognitive Deficits and HIV Associated Psychotic Disorders in Uganda

Introduction: HIV infection is known to cause neuro-psychiatric disturbances whose prevalence ranges between 74-83%. The prevalence of HIV in patients with psychosis has been found at 18%. Cognitive dysfunction occurs in 37% of HIV individuals with advanced HIV/AIDS even after the initiation of antiretroviral therapy. This thesis presents the feasibility of a rapid screening test for HIV dementia in a resource limited setting; the nature of HIV related psychoses and the impact of HIV infection on the cognitive function of patients with and without psychosis. Methods: Four studies (1-IV) were conducted using multiple methods. We determined the validity of the International HIV Dementia Scale (IHDS) through administering standardized neurological and neuropsychological assessments to 66 HIV-positive individuals in the USA, 81 HIV positive individuals and 100 HIV negative individuals in Uganda (Study I). We recruited 102 HIV positive individuals from the Infectious Diseases Institute and 25 HIV negative individuals from the AIDS Information Centre. Depression and cognitive function were assessed at 0, 3 and 6 months (Study II). One hundred and fifty six HIV positive and 322 HIV negative patients with psychosis were consecutively recruited from two national referral hospitals. Psychiatric, physical, and laboratory assessments were conducted at 0, 3 and 6 months (Study III & Study IV). Data was analyzed using univariate, bivariate and multivariable methods including linear and logistic regression analysis to test for predictors of the different types of psychosis and the relationship to cognitive impairment. Results: The sensitivity and specificity for HIV dementia with the IHDS was 80% and 57% in the US part of the study, and 80% and 55% in the Uganda part of the study (I). We found higher scores (equal to or greater than 16) on the Centre for Epidemiologic Depression Scale in the HIV-positive group at all 3 clinic visits (54% vs 28%; 36% vs 13%; and 30% vs 24% respectively; all p < 0.05 (II). The HIV positive group had higher likelihood for cognitive impairment (OR 8.9; 95% CI 2.6-29.9). Mania, major depression and schizophrenia occurred more in the HIV negative group, 67%:62%:80% respectively, while psychotic disorder not otherwise specified occurred more in the HIV positive individuals 88% vs 12 %, (p < 0.001) (III). The HIV positive individuals were more likely to be impaired in the following domains, verbal memory (OR 1.8, 95% CI 1.0-2.9), verbal fluency (OR 3.4; 95% CI 2.2-5.2), Colour trails 1(OR 2.0; 95% CI 1.3-3.0 and Colour trail 2 (OR 3.5; 95% CI 2.0-6.1). Conclusion: We found it feasible to screen for HIV dementia using the IHDS and suggest this is implemented in routine clinical care. Depression symptomatology and the presentation of psychosis are distinct and common among HIV infected individuals compared to HIV negative individuals. The cognitive function of individuals with psychosis is worsened by HIV infection. Treatment algorithms for the different types of psychoses and the cognitive impairment that occur in HIV infection should be developed. There is need for policy changes that can improve guidelines for the care of HIV infected individuals with neuropsychiatric complications in resource limited settings

Classification and description of chronic pain among HIV positive patients in Uganda

Introduction: Chronic pain classification in HIV positive patients is essential for diagnosis and treatment. However, this is rarely done despite association with poor outcomes.Methods: A cross-sectional survey of 345 consented patients at a specialized HIV care center in Uganda was conducted. Chronic pain was defined as pain of more than two weeks duration. Data was collected using a socio-demographic questionnaire, the IASP classification of chronic pain; the StEP; Mini Mental Status Examination, Patient Health Questionnaire, Mini International Neuropsychiatric Interview and the World Health Organization quality of life instrument brief version. Chi-square, Fisher’s exact, t-test and logistic regression analyses were carried out to determine factors associated with chronic pain.Results: Description of pain aetiology was difficult. Chronic pain was reported in 21.5% of the participants. Non-neuropathic (92.0%) was more common than neuropathic pain (8.0%). Chronic pain was found to be associated with feeling ill [OR=6.57 (3.48 – 12.39)], and worse scores in the quality of life domain for physical health [OR=0.71 (0.60 – 0.83)].Conclusion: People living with HIV/AIDS commonly have chronic pain that is associated with poor quality of life. More sensitive tools are needed to accurately describe chronic pain in resource limited settings.Keywords: Chronic pain, classification, HIV/AIDS

A Randomized Controlled Trial to Evaluate if Computerized Cognitive Rehabilitation Improves Neurocognition in Ugandan Children with HIV

Objectives: Clinically stable children with HIV can have neuromotor, attention, memory, visual?spatial, and executive function impairments. We evaluated neuropsychological and behavioral benefits of computerized cognitive rehabilitation training (CCRT) in Ugandan HIV children. Design: One hundred fifty-nine rural Ugandan children with WHO Stage I or II HIV disease (6 to 12 years; 77 boys, 82 girls; M?=?8.9, SD?=?1.86 years) were randomized to one of three treatment arms over a 2-month period. Methods: The CCRT arm received 24 one-hour sessions over 2 months, using Captain's Log (BrainTrain Corporation) programmed for games targeting working memory, attention, and visual?spatial analysis. These games progressed in difficulty as the child's performance improved. The second arm was a ?limited CCRT? with the same games rotated randomly from simple to moderate levels of training. The third arm was a passive control group receiving no training. All children were assessed at enrollment, 2 months (immediately following CCRT), and 3 months after CCRT completion. Results: The CCRT group had significantly greater gains through 3 months of follow-up compared to passive controls on overall Kaufman Assessment Battery for Children?second edition (KABC-II) mental processing index (p?Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140132/1/aid.2016.0026.pd

Major depressive disorder and suicidality in early HIV infection and its association with risk factors and negative outcomes as seen in semi-urban and rural Uganda.

INTRODUCTION: There is a paucity of research into the psychiatric problems associated with early stage HIV clinical disease in sub-Saharan Africa. METHODS: A cross sectional study was undertaken among 899 adult ART naïve persons in early stage HIV clinical disease (participants with CD4≥250 and who were at WHO clinical Stage I or II) attending a semi-urban and a rural clinic in Uganda. RESULTS: The prevalence of major depressive disorder in this study was 14.0% [95% CI 11.7-6.3%] while that of 'moderate to high risk for suicidality' was 2.8% [95% CI 1.7%; 3.9%]. Multivariable analyses found that factors in the socio-demographic, vulnerability/protective and stress (only for major depressive disorder) domains were significantly associated with both major depressive disorder and 'moderate to high risk for suicidality'. Major depressive disorder but not 'moderate to high risk for suicidality' was significantly associated with impaired psychosocial functioning, greater utilisation of health services and non-adherence to septrin/dasone. Neither major depressive disorder nor 'moderate to high risk for suicidality' was associated with CD4 counts, risky sexual behaviour nor with non-utilisation of condoms. LIMITATIONS: The bidirectional nature of some of the relationships between the investigated psychiatric problems, risk factors and outcomes in this cross sectional study makes it difficult to elucidate the actual direction of causality. CONCLUSION: Early stage HIV clinical disease is associated with considerable major depressive disorder and 'moderate to high risk for suicidality'. Therefore there is a need to integrate mental health into HIV interventions that target early stage HIV disease

Association of caregiver quality of care with neurocognitive outcomes in HIV-affected children aged 2–5 years in Uganda

Abstract: Children affected by HIV are at increased risk of developmental and neuropsychological disturbances due to direct effects of HIV on the brain and direct effects associated with living in poverty. Caregivers can play an important role, through quality caregiving, in mitigating the negative effect of these stressors. This study used baseline data from an ongoing caregiver training intervention trial to evaluate the association between quality of caregiver-child interactions and neurocognitive outcomes in rural HIV-infected and HIV-exposed but uninfected children in Uganda. We also assessed the extent to which caregiver distress moderated this relationship. Data on 329 caregiver-child dyads were collected between March 2012 and July 2014, when the children were between 2 and 5 years of age. Child outcomes include the Mullen Scales of Early Learning to assess general cognitive ability and the Color Object Association Test to assess immediate memory and total recall. Caregiving quality was assessed using the Home Observation for the Measurement of the Environment (HOME) total and subscale scores. Caregiver distress was assessed using the Hopkins Symptom Checklist. General linear regression models assessed the association between the HOME total and subscale scores and child outcomes, with interaction terms used to test moderation by caregiver distress. Total HOME scores were positively and significantly associated with Mullen scores of cognitive ability; HOME acceptance subscale scores were positively and significantly associated with immediate recall scores. No other associations were statistically significant. As hypothesized, there is a strong association between the HOME and Mullen scores of cognitive ability in our study population, such that children who were assessed as living in environments with more stimulation also presented with a higher level of general neurocognitive development. Our results support the view of program guidance for HIV-affected children that suggest family-oriented care with emphasis on parent-child relationships for optimal child development

Depression symptoms and cognitive function among individuals with advanced HIV infection initiating HAART in Uganda

Background Among patients with HIV infection, depression is the most frequently observed psychiatric disorder. The presence of depressive symptoms and cognitive dysfunction among HIV patients has not been well studied in Sub-Saharan Africa. Initiation of highly active antiretroviral therapy (HAART) may have an effect on the prevalence and the change over time of depression symptoms and cognitive impairment among HIV-positive individuals. Methods We recruited 102 HIV-positive individuals at risk of cognitive impairment who were initiating HAART and 25 HIV-negative individuals matched for age and education. Depression was assessed using the Centre for Epidemiologic Studies Depression Scale (CES-D). Neurocognitive assessment included the International HIV Dementia Scale (IHDS), an 8 test neuropsychological battery and the Memorial Sloan Kettering scale. Assessments were carried out at 0, 3 and 6 months. Results The HIV-positive group had more respondents with CES-D score > 16 than the HIV-negative group at all 3 clinic visits (54%Vs 28%; 36% Vs 13%; and 30% Vs 24% respectively; all p < 0.050 OR 2.86, 95% CI: 1.03, 7.95, p = 0.044). The HIV positive group had higher likelihood for cognitive impairment (OR 8.88, 95% CI 2.64, 29.89, p < 0.001). A significant decrease in the mean scores on the CES-D (p = 0.002) and IHDS (p = 0.001) occurred more in the HIV-positive group when compared to the HIV-negative group. There was no association between clinical Memorial Sloan Kettering score and depression symptoms (p = 0.310) at baseline. Conclusion Depression symptomatology is distinct and common among cognitively impaired HIV patients. Therefore individuals in HIV care should be screened and treated for depression

Incidence and Persistence of Major Depressive Disorder Among People Living with HIV in Uganda.

Data on the course of major depressive disorder (MDD) among people living with HIV (PLWH) are needed to inform refinement of screening and interventions for MDD. This paper describes the incidence and persistence rate of MDD in PLWH in Uganda. 1099 ART-naïve PLWH attending HIV clinics in Uganda were followed up for 12 months. MDD was assessed using the DSM IV based Mini-International Neuropsychiatric Interview with a prevalence for MDD at baseline of 14.0 % (95 % CI 11.7-16.3 %) reported. Multivariable logistic regression was used to determine predictors of incident and persistent MDD. Cumulative incidence of MDD was 6.1 per 100 person-years (95 % CI 4.6-7.8) with significant independent predictors of study site, higher baseline depression scores and increased stress. Persistence of MDD was 24.6 % (95 % CI 17.9-32.5 %) with independent significant predictors of study site, higher baseline depression scores, and increased weight. Risks of incident and persistent MDD observed in this study were high. Potentially modifiable factors of elevated baseline depressive scores and stress (only for incident MDD) were important predictors of incident and persistent MDD