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End date: 2020

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    Data Set : Prevalence, characterization and response to chronic kidney disease in an urban and rural setting in South Africa
    (2016-11-18) Naicker, Saraladevi; Fabian, June; Jaya A George; Harriet R Etheredge; Manuel van Deventer; Robert Kalyesubula; Alisha N Wade; Laurie A Tomlinson; Stephen Tollman
    Globally, chronic kidney disease (CKD) is an emerging public health challenge but accurate data on its true prevalence are scarce, particularly in poorly resourced regions such as sub-Saharan Africa (SSA). Limited funding for population-based studies, poor laboratory infrastructure and the absence of a validated estimating equation for kidney function in Africans are contributing factors. Consequently, most available studies used to estimate population prevalence are hospital-based, with small samples of participants who are at high risk for kidney disease. While serum creatinine is most commonly used to estimate glomerular filtration, there is considerable potential bias in the measurement of creatinine that might lead to inaccurate estimates of kidney disease at individual and population level. To address this, the Laboratory Working Group of the National Kidney Disease Education Program published recommendations in 2006 to standardize the laboratory measurement of creatinine. The primary objective of this review was to appraise implementation of these recommendations in studies conducted in SSA after 2006. Secondary objectives were to assess bias relating to choice of estimating equations for assessing glomerular function in Africans and to evaluate use of recommended diagnostic criteria for CKD. This study was registered with Prospero (CRD42017068151), and using PubMed, African Journals Online and Web of Science, 5845 abstracts were reviewed and 252 full-text articles included for narrative analysis. Overall, two-thirds of studies did not report laboratory methods for creatinine measurement and just over 80% did not report whether their creatinine measurement was isotope dilution mass spectroscopy (IDMS) traceable. For those reporting a method, Jaffe was the most common (93%). The four-variable Modification of Diet in Renal Disease (4-v MDRD) equation was most frequently used (42%), followed by the CKD Epidemiology Collaboration (CKD-EPI) equation for creatinine (26%). For the 4-v MDRD equation and CKD-EPI equations, respectively, one-third to one half of studies clarified use of the coefficient for African-American (AA) ethnicity. When reporting CKD prevalence, <15% of studies fulfilled Kidney Disease: Improving Global Outcomes criteria and even fewer used a population-based sample. Six studies compared performance of estimating equations to measured glomerular filtration rate (GFR) demonstrating that coefficients for AA ethnicity used in the 4-v MDRD and the CKD-EPI equations overestimated GFR in Africans. To improve on reporting in future studies, we propose an 'easy to use' checklist that will standardize reporting of kidney function and improve the quality of studies in the region. This research contributes some understanding of the factors requiring attention to ensure accurate assessment of the burden of kidney disease in SSA. Many of these factors are difficult to address and extend beyond individual researchers to health systems and governmental policy, but understanding the burden of kidney disease is a critical first step to informing an integrated public health response that would provide appropriate screening, prevention and management of kidney disease in countries from SSA. This is particularly relevant as CKD is a common pathway in both infectious and non-communicable diseases, and multimorbidity is now commonplace, and even more so when those living with severe kidney disease have limited or no access to renal replacement therapy.
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    WDGMC Paediatric Liver Transplant Research Database
    (REDcap, 2019-12-09) Fabian, June; Botha, Jean; Van der Schyff, Francisca.; Terblanche, Alberta J
    Biliary atresia (BA) is a progressive fibrosing cholangiopathy of infancy, the most common cause of cholestatic jaundice in infants and the top indication for liver transplantation in children. Kasai portoenterostomy (KPE) when successful may delay the requirement for liver transplantation, which in the majority offers the only cure. Good outcomes demand early surgical intervention, appropriate management of liver cirrhosis, and in most cases, liver transplantation. These parameters were audited of children with BA treated at the Steve Biko Academic Hospital (SBAH) in Pretoria, South Africa.
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    Dataset from Ark Consortium - Understanding kidney disease in rural central Uganda - Findings from a qualitative study.
    (2016-11-09) Saraladevi, Naicker; June, Fabian; Working group ARK Consortium,; Seeley, Janet; Kabunga, Elizabeth; Laurie, Tomlinson; Liam, Smeeth; Moffat, Nyirenda; Robert, Newton; Robert, Kalyesubula; Dominic, Bukenya; Joseph Ssembatya
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    Audit of acute rejection in renal allografts
    (2020) Thomas, Riju Mathew
    Acute graft rejection is acknowledged to have a negative impact on graft survival in renal transplantation. South Africa provides for limited renal transplantation amidst the increasing burden of chronic kidney disease in the local context. Despite this suboptimal provision and limited resources, amongst many other concerns, the role of acute graft rejection on graft survival has not been characterized in the context of South Africa, as well as the African continent. This study is an audit, characterising acute graft rejection diagnosed at the Charlotte Maxeke Johannesburg Academic Hospital over a ten-year period (2003-2012). The study revealed the incidence of acute rejection in renal transplants to be 34.5%, similar to that reported in international studies. The majority of acute rejections occurred within the first year of transplantation (53.8%), which was lower than that reported in other studies, with 40% of patients having recurrence of acute rejection. The main form of rejection diagnosed was acute cellular rejection (predominantly BANFF grades 1A and 1B), followed by Borderline acute cellular rejection, the combination of which comprised the majority (86.9%) of all rejections diagnosed. This population was found to be a male dominant and Black African dominant study group, in keeping with the racial distribution of the dialysis population of South Africa, commonly influenced by treatment-seeking behaviour. Cadaveric donor grafts were engrafted in 77.7% of this population and 77.8% of the population had less than 40% of HLA antigens in common with their donor. Delayed graft function was observed in 22.4% of recipients with a significant association with more severe acute graft rejection. Hypertension was the most dominant primary aetiology leading to chronic kidney disease of native kidneys in this population. Immunosuppressive regimen, including cyclosporin, mycophenolate mofetil and prednisone, was used in 80% of recipients, with 97.6% of recipients on mycophenolate mofetil and prednisone. The five-year survival of grafts developing acute rejection was 61.7%. Graft function deteriorated more dramatically amongst recipients who progressed to graft loss, with recovery of graft function observed to be more prominent amongst recipients with surviving grafts. This study adds to the literature on this topic, and also describes the characteristics and outcomes of this entity.
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    Factors influencing CD4+ T cell counts in people living with HIV with end-stage kidney disease
    (2020) Pretorius, Melanie
    Introduction: In South Africa, it is estimated that ~7 million people are living with Human Immunodeficiency Virus (HIV). HIV is associated with an increased risk of kidney disease. For people living with HIV (PLWH) who develop end-stage kidney disease (ESKD), access to renal replacement therapy can be difficult. Kidney transplantation is a cost-effective option, with improved overall survival and better quality of life. Eligibility criteria for kidney transplantation in Johannesburg includes a sustained CD4+ T cell count of >200 cells/μl and suppressed HIV replication. This study aimed to investigate the influence of hemodialysis on the lymphocyte subsets in PLWH with ESKD. Methods: Study participants and controls were recruited from renal dialysis centres in Johannesburg. Demographic data, social data, serial CD4+ T cell counts, serial HIV viral load measurements and blood samples were collected (before and after a haemodialysis session). Lymphocyte subsets were then measured. Results: Our cohort showed a statistically significant increase in the post-dialysis % of CD4+ T cells and the absolute CD4+ T cell counts. The longitudinal trend analysis for the % of CD4+ T cells revealed a significant increase in five participants and a single patient had a significant decrease in the longitudinal trend analysis for the absolute CD4+ T cell counts. The longitudinal trend analysis for HIV viral load revealed the majority of our participants were not virologically suppressed. Conclusion: This study showed that haemodialysis does not negatively impact CD4+ T cell count, suggesting that immunologic recovery is not impeded by treatment of the underlying ESKD.
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    Graft survival in South African renal transplant patients during the transition period at Charlotte Maxeke Johannesburg Academic Hospital (graft-sat study)
    (2020) Chhiba, Priya Darshani
    Introduction: In the developed world, studies performed on the transition of adolescent renal transplant patients have noted high rates of rejection, non-adherence and graft loss. However, there is paucity of data in developing countries, and none in a South African setting. Objectives: The purpose of this study was to assess the rates of acute and chronic rejection, graft and patient survival in adolescents at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH). Methods:This study was a retrospective analysis of patients who received a renal transplant from 1 January 1990 to 31 December 2010, in the Paediatric Nephrology Department at CMJAH, in Parktown, Johannesburg, and entered the adolescent period (10 to 19 years old) with a functioning graft. Patients were included whether or not they were transferred to the Adult Nephrology Department at CMJAH.Results: 162 recipients were patients were transplanted during the study period, of which 80 (49.4%) were of black race, 63 (38.9%) were white, 10 (6.2%) were Asian and 9 (5.5%) were of mixed race. 65 (40.1%) were female and 97 (59.9%) were male. The median age at transplant was 13.8 years old (Interquartile range (IQR): 10.6 to 15.9). One hundred, twenty-eight (79.0%) patients received a renal transplant during the adolescent period and 34 (21.0%) were transplanted prior to adolescence. Fifty-four (33.3%) patients were transferred to the adult unit during adolescence. Graft failure occurred in 60 (37.0%) of the patients during the adolescent period, of which 54 (90.0%) occurred in the paediatric unit and 6 (10.0%) occurred in the adult unit. The median age at graft failure in the adolescent period was 16.1 years old (IQR: 14.5 to 17.9). Kaplan-Meier curves were used to analyse graft and patient survival. The following factors were identified as statistically significant in contributing to graft failure: if the transplant occurred during adolescence, previous renal transplant,non-compliance and rejection episodes in the adult unit, (p value <0.05). The 1, 3, 5, and 10-year patient survival rates were 98.8%, 97.6%, 95.1% and 93.9% respectively. Conclusion: This study revealed high rates of graft rejection and loss in South African renal transplant recipients in the adolescent period highlighting the vulnerability of this population group. Consideration should be given to the creation of transition clinics to potentially improve the graft outcomes of this vulnerable group. Further studies are needed on the transition period of adolescent renal transplant patients.
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    The influence of dialysis modality on post-transplant outcomes
    (2020) Boosi, Reece
    Introduction: Renal transplantation is the therapy of choice for end stage kidney disease, offering mortality risk reduction and improved morbidity over dialytic therapies. Limited data is available evaluating the effect of pre-engraftment dialysis modality on transplant outcomes. Methods: A retrospective review was conducted of all adult patients undergoing renal transplantation at Charlotte Maxeke Johannesburg Academic Hospital for the period 01/01/2006 – 31/12/2011 (n=103). Transplant outcomes were assessed by dialysis modality. c2 testing was used to compare dialysis modalities; Cox proportional hazard modelling was used to assess effect on graft outcomes. A p < 0.05 was deemed statistically significant. Results: Antecedent dialytic modality was as follows: 55 patients (53.4%) received haemodialysis (HD), 35 (34%) received peritoneal dialysis (PD), and 13 (12.6%) received a combination of both (HD+PD, defined as either modality for > 3 months). Acute rejection (AR) was documented in 43.7% of patients; 54.3% of PD patients developed AR compared to 38.2% of HD patients and 38.5% of HD+PD patients (p=0.29). No significant difference in the number of episodes of AR was detected between modality groups (p=0.44). Chronic rejection (CR) developed in 22.3% of patients overall; 21.8% of HD patients, 25.8% of PD and 15.9% of HD+PD patients (p=0.74). PD was associated with an increased risk of developing any rejection (HR=2.4, 95% CI 0.9–6.4, p=0.02). Whereas dialysis modality did not affect graft survival (for HD b= 0.57, SE=0.5, Wald=1.2, 95% CI -0.4-1.6, p=0.27; for PD b=0.58, SE=0.5, Wald = 1.4, 95% CI -0.4-1.6, p=0.24), AR was found to be associated with futuregraft loss (b=1.29, SE=0.3, Wald = 18.1, 95% CI 0.7-1.9, p<0.001).Conclusions: Antecedent PD is associated with an increased risk of graft rejection. Although AR is associated with graft loss, antecedent dialysis modality does not directly predict graft survival, likely reflecting the multifactorial nature of cumulative allograft injury.
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    Exploring a South African Indian Woman Poet and her Poetry from an Indigenous Perspective: Interviews with Francine Simon and Readings of Selected Poems from Thungachi.
    (University of the Witwatersrand, 2019-07-30) Govender, Arushani
    This dissertation executes a critical reading of Francine Simon’s poetry in relation to contemporary perspectives of indigenous knowledge (IK), and against the political background and socio-cultural context of the poet’s lived experiences. Simon is an emerging South African Indian (SAI) woman poet in the contemporary poetry scene, and has recently published a debut poetry collection titled Thungachi. I unpack instances of IK from selected poems in Thungachi, through use of an indigenous language of critique. Linda Tuhiwai Smith conceptualises indigenous language of critique as a form of theory that indigenous research scholars should engage with, by combining questions of indigeneity with attributes of decolonisation (24). Framed by decolonial theory, this study serves the interests of decolonising research praxis, and thereby the nature of the knowledge produced. I have executed in-depth interviews with the poet to determine how she came to acquire IK and how such knowledge is conveyed and dealt with in her poetry. The interviews are presented as an experiential montage, countering the “objective” nature of academic research that distances the knower from the known. The dissertation is thus composed of theoretical analysis and creative reflections, which together offer a textured exploration of the selected poems and an experience of the poetry. Using the interview data as a supplementary device, I conduct the poetry analysis with the following questions, which pertain to examining the data from an indigenous perspective: What indigenous worldviews are prevalent in Simon’s poetry? To what culture/s may those worldviews be attributed? How is IK affected by diaspora, gender and cultural hybridity? This study finds that it is necessary to critique Simon’s poetry from an indigenous perspective in order to uncover its cultural complexities, ontological insights and social commentary. Additionally, Simon’s poetry demonstrates artistry, experimentation with language and form, and innovates a genre of decolonised feminist poetics that creates room for the heterogeneity of South African Indian women.
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    Challenges faced by Gauteng nephrology nurses regarding implementing evidence based practice
    (2020) Dube, Elizabeth Lerato
    Introduction: Evidence-based practice is an expected core competence of all health care clinicians regardless of discipline. Melnyk and Fineout-Overholt (2014) noted that although there is an explosion of scientific evidence available to guide clinical practice, the implementation of evidence-based care by health professionals is typically not the norm in many healthcare systems across the globe. The researcher undertook this study to gain an understanding of what is preventing the nurses from implementing EBP in the nephrology nursing departments in Gauteng. Purpose of the study was to describe challenges related to EBP implementation that were faced by nephrology nurses in clinical practice and to describe the recommendations that will assist them to successfully implement. Methods. This study followed a qualitative, exploratory, descriptive and contextual approach and was conducted in nephrology units in Gauteng Province. The population of this study included trained nephrology nurses registered with the South African Nursing Council (SANC) and meeting the eligibility criteria. Data was collected from three phases and analysed using Hsieh and Shannon (2005) conventional data analysis method. Results: Sixteen sub categories emerged which were condensed to three categories of Management Practices, Perceived organizational support and leadership practices and Training and Development. Results included studies recommending the middle manager to be the link between nurses at the operational level and top management, who can successfully drive EBP and assist in alleviating experienced challenges. Recommendations were described