Research Articles (Nephrology)
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- ItemThe state of kidney transplantation in South Africa(Health & Medical Publishing Group, 2019) Moosa, M. R.Background. Kidney transplantation has been performed in South Africa (SA) since 1966. Transplants were initially limited to public hospitals, and the entry of the private sector heralded a new era in organ transplantation. Objectives. To document kidney transplantation in SA and compare numbers, rates, trends and sources of kidneys transplanted in the public and private sectors in SA over 25 years. Methods. National kidney transplant data collected between 1991 and 2015 by the Organ Donor Foundation of South Africa were analysed. The total number of kidneys transplanted in the country was counted and rates were calculated. The numbers and rates in the private and public sectors were compared. The source of donor kidneys and sites where transplants were performed were documented. Results. Over the 25-year period under review, 7 191 kidney transplants were performed in SA. The overall kidney transplant rate was 6.4 per million population (pmp), averaging 4.8 pmp in the public sector and 15.2 pmp in the private sector; 58.3% of the donor kidneys were derived from deceased donors. Cape Town and Johannesburg hospitals performed 75% of the country’s kidney transplants. Conclusions. The overall transplant rate in SA is declining, especially in the public sector. Most kidney transplants in the country were performed in the public sector, and deceased-donor transplants predominated. Discrepancies exist in the allocation of kidneys. Recommendations are made on how the situation may be improved.
- ItemTrends in the nephrologist workforce in South Africa (2002–2017) and forecasting for 2030(Public Library of Science, 2021) Kumashie, Dominic Dzamesi; Tiwari, Ritika; Hassen, Muhammed; Chikte, Usuf M. E.; Davids, Mogamat RazeenBackground: The growing global health burden of kidney disease is substantial and the nephrology workforce is critical to managing it. There are concerns that the nephrology workforce appears to be shrinking in many countries. This study analyses trends in South Africa for the period 2002–2017, describes current training capacity and uses this as a basis for forecasting the nephrology workforce for 2030. Methods: Data on registered nephrologists for the period 2002 to 2017 was obtained from the Health Professions Council of South Africa and the Colleges of Medicine of South Africa. Training capacity was assessed using data on government-funded posts for nephrologists and nephrology trainees, as well as training post numbers (the latter reflecting potential training capacity). Based on the trends, the gap in the supply of nephrologists was forecast for 2030 based on three targets: reducing the inequalities in provincial nephrologist densities, reducing the gap between public and private sector nephrologist densities, and international benchmarking using the Global Kidney Health Atlas and British Renal Society recommendations. Results: The number of nephrologists increased from 53 to 141 (paediatric nephrologists increased from 9 to 22) over the period 2002–2017. The density in 2017 was 2.5 nephrologists per million population (pmp). In 2002, the median age of nephrologists was 46 years (interquartile range (IQR) 39–56 years) and in 2017 the median age was 48 years (IQR 41–56 years). The number of female nephrologists increased from 4 to 43 and the number of Black nephrologists increased from 3 to 24. There have been no nephrologists practising in the North West and Mpumalanga provinces and only one each in Limpopo and the Northern Cape. The current rate of production of nephrologists is eight per year. At this rate, and considering estimates of nephrologists exiting the workforce, there will be 2.6 nephrologists pmp in 2030. There are 17 government-funded nephrology trainee posts while the potential number based on the prescribed trainer-trainee ratio is 72. To increase the nephrologist density of all provinces to at least the level of KwaZulu-Natal (2.8 pmp), which has a density closest to the country average, a projected 72 additional nephrologists (six per year) would be needed by 2030. Benchmarking against the 25th centile (5.1 pmp) of upper-middle-income countries (UMICs) reported in the Global Kidney Health Atlas would require the training of an additional eight nephrologists per year. Conclusions South Africa has insufficient nephrologists, especially in the public sector and in certain provinces. A substantial increase in the production of new nephrologists is required. This requires an increase in funded training posts and posts for qualified nephrologists in the public sector. This study has estimated the numbers and distribution of nephrologists needed to address provincial inequalities and achieve realistic nephrologist density targets. density of all provinces to at least the level of KwaZulu-Natal (2.8 pmp), which has a density closest to the country average, a projected 72 additional nephrologists (six per year) would be needed by 2030. Benchmarking against the 25th centile (5.1 pmp) of upper-middleincome countries (UMICs) reported in the Global Kidney Health Atlas would require the training of an additional eight nephrologists per year. Conclusions: South Africa has insufficient nephrologists, especially in the public sector and in certain provinces. A substantial increase in the production of new nephrologists is required. This requires an increase in funded training posts and posts for qualified nephrologists in the public sector. This study has estimated the numbers and distribution of nephrologists needed to address provincial inequalities and achieve realistic nephrologist density targets.
- ItemQuality of life among patients with moderate to advanced chronic kidney disease in Ghana - a single centre study(BMC (part of Springer Nature), 2019) Tannor, Elliot K.; Norman, Betty R.; Adusei, Kwame K.; Sarfo, Fred S.; Davids, Mogamat R.; Bedu-Addo , GeorgeBackground: The prevalence of chronic kidney disease (CKD) is increasing worldwide and in Africa. Health related quality of life (QOL) has become an essential outcome measure for patients with CKD and end stage renal disease (ESRD). There is growing interest worldwide in QOL of CKD patients but paucity of data in Ghana. This study sought to assess QOL in patients with moderate to advanced CKD (not on dialysis) and establish its determinants. Methods: We conducted a cross sectional observational study at the renal outpatient clinic at Komfo Anokye Teaching Hospital (KATH). We collected demographic, clinical and laboratory data. A pretested self-administered Research and Development corporation (RAND®) 36-Item Health Survey questionnaire was administered and QOL scores in physical component summary (PCS) and mental component summary (MCS) were computed. Determinants of QOL were established by simple and multiple linear regression. P value of < 0.05 was considered statistically significant. Results: The study included 202 patients with CKD not on dialysis. There were 118(58.5%) males. Mean age was 46.7 ± 16. 2 years. The majority, 165(81.7%) of patients were on monthly salaries of less than GHS 500 (~USD 125). Chronic glomerulonephritis was the most common cause of CKD in 118 (58.5%) patients followed by diabetes mellitus in 40 (19.8%) patients and hypertension in 19 (9.4%) patients. The median serum creatinine was 634.2 μmol/L (IQR 333–1248) and the median eGFR was 7 ml/min/1.73m2 (IQR 3–16). The most common stage was CKD stage 5 accounting for 143 (71.1%), followed by CKD stage 4 with 45 (22.4%) of cases and 13 (6.5%) of CKD stage 3. The overall mean QOL score was 40.3 ± 15.4. MCS score was significantly lower than PCS score (37.3 ± 10.8 versus 43.3 ± 21.6, P < 0.001). Multiple linear regression showed that low monthly income (p = 0.002) and low haemoglobin levels (p = 0.003) were predictive of overall mean QOL. Conclusion: Patients with moderate to advanced CKD had low-income status, presented with advanced disease and had poor QOL. Anaemia and low-income status were significantly associated with poor QOL.
- ItemGuidelines for the prevention, detection and management of the renal complications of COVID-19 in Africa(African Association of Nephrology, 2020) Elsayed, Hesham M.; Wadee, Shoyab; Zaki, Mohamad S.; Were, Anthony J. O.; Ashuntantang, Gloria E.; Bamgboye, Ebun L.; Davids, Mogamat Razeen; Hafez, Mohamed H.; Mahamat, Maimouna; Naicker, Saraladevi; Niang, Abdou; Seck, Sidy M.; Swanepoel, Charles R.; Tannor, Elliot K.; Twahir, Ahmed; Yao, K. HubertENGLISH ABSTRACT: Africa trails the rest of the world in COVID-19 cases and deaths. However, as the pandemic spreads through the continent, we expect increases in community infection in the months ahead. Patients with kidney infection, especially those with end-stage kidney disease and those with kidney transplants, are at high risk for acquiring the disease and dying from it. While there is limited evidence for the benefit of interventions, we have the advantage of learning from the experiences of those in China, Europe and the Americas. This document sets forth guidance for dealing with our patients who have acute and chronic kidney disease, including those on renal replacement therapy and the staff involved in their care. Emphasis is placed on preparedness and prevention strategies. As evidence and experience accumulate, it is likely that updated guidance will be needed. L’Afrique suit le reste du monde en termes de nombre de cas et de décès dus à COVID-19. Cependant, alors que la pandémie se propage à travers le continent, nous prévoyons une augmentation de l’infection communautaire dans les mois à venir. Les patients atteints d’une maladie rénale, en particulier ceux atteints d’une maladie rénale chronique en phase terminale et ceux ayant subi une transplantation rénale, courent un risque élevé de contracter la maladie et d’en mourir. Bien que les preuves d’interventions soient limitées, nous avons l’avantage de tirer des enseignements des expériences de ceux qui se trouvent en Chine, en Europe et dans les Amériques. Ce document présente des conseils pour traiter nos patients atteints d’insuffisance rénale aiguë et chronique, y compris ceux sous thérapie de suppléance rénale et le personnel impliqué dans leurs soins. L’accent est mis sur les stratégies de préparation et de prévention. Au fur et à mesure que les preuves et l’expérience s’accumulent, il est probable que des directives actualisées seront nécessaires.
- ItemPattern of renal amyloidosis in South Africa(BMC (part of Springer Nature), 2019) Hassen, Muhammed; Bates, William; Moosa, Mohammed RafiqueBackground: Kidney disease is a serious manifestation of systemic amyloidosis and a major cause of morbidity and mortality. Tuberculosis (TB) occurs up to 27 times more commonly in human immunodeficiency virus (HIV) infected patients and is also an important cause of renal amyloid; there are however no reports of renal amyloidosis in South Africa in the HIV era. Methods: This was a retrospective record review of cases of amyloidosis diagnosed on renal biopsies at our tertiary referral hospital between January 1985 and December 2016. Results: Forty-six cases of amyloidosis were identified over the study period. The calculated biopsy prevalence was 1.38 per 100 non-transplant renal biopsies (95% Confidence Interval 1.02–1.86). AL amyloidosis was identified in 26 (57%) cases and AA in 20 (43%). The median age at presentation was 51 years and 52% of cases were female. Patients with AA amyloidosis were significantly younger compared to their AL counterparts (age 42 years vs. 58 years, p = < 0.001) and were all significantly non-white. The main clinical presentation was nephrotic syndrome (85%) and 52% of cases also had a serum creatinine value of greater than 120 μmol/L. Of the 20 cases of AA amyloidosis, 12 (60%) were associated with tuberculosis. HIV infection was noted in only two (10%) of the 20 AA cases. Median survival after diagnosis was 2 months. Conclusion: Amyloidosis is a rare cause of kidney disease and typically presents with nephrotic syndrome. A similar number of AA and AL types were observed, and outcomes are worse in cases of AA amyloid. While TB remains the major underlying disease in this type, HIV infection was infrequent in cases of AA renal amyloidosis.