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Teuwafeu DG, Sehbing M, Halle MP, Mahamat M, Fouda H, Ashuntantang G. Quality of life and social reinsertion of patients on maintenance haemodialysis in four government funded hospitals in Cameroon. BMC Nephrol 2024; 25:335. [PMID: 39379842 PMCID: PMC11459710 DOI: 10.1186/s12882-024-03778-6] [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: 10/03/2023] [Accepted: 09/25/2024] [Indexed: 10/10/2024] Open
Abstract
BACKGROUND Reduced quality of life is associated with shorter survival in chronic illnesses. However, the health-related quality of life (HRQOL) and social reinsertion of patients on maintenance haemodialysis is much more underappreciated in resource-limited countries such as Cameroon. METHOD A hospital-based cross-sectional study was carried out from February 22nd to May 20th, 2022, in 4 government-funded haemodialysis centres in three randomly selected regions of Cameroon. Patients received twice-weekly dialysis sessions. Social reinsertion and HRQOL were assessed using a structured questionnaire and the kidney disease quality of life instrument (KDQOL-36™). HRQOL scores < 50 were categorized as low, while scores > 50 reflected better HRQOL. Data were analysed using the software statistical package for Social Sciences version 25.0. Statistical significance was set at a p value < 0.05. RESULTS The study included 434 patients. The mean age was 48.33 (13.55) years, 65.7% (285/434) were male, 62.3% (269/434) had no monthly income, and the mean dialysis vintage was 3.74 (3.83) years. The mean HRQOL score was 44.34 (9.77), and 76.2% (325/434) had HRQOL scores < 50). Overall HRQOL was associated with older age (aOR: 2.344, CI 1.089-5.04). After the initiation of maintenance haemodialysis, 67.1% (49/73) of students dropped out of school. The main reason for school absenteeism and unemployment was physical insufficiency, with 82.4% (19/24) and 52.4% (75/144), respectively. There were no promotions or marriages after initiation; 51% (221/434) of relationships with relatives and friends were affected negatively, while 83.3% (66/79) of those of marriageable ages could not find suitors. The social participation score was poor in 61.5% (267/434) of participants. There was an association between low QOL and social participation (p = 0.009). CONCLUSION The HRQOL of patients on maintenance haemodialysis is greatly reduced, especially their physical health status. Older age was a determinant of low QOL. Additionally, social reinsertion remains poor due to adverse changes that occur to these patients and their families after dialysis initiation. CLINICAL TRIAL NUMBER Not applicable.
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Affiliation(s)
| | - Mervis Sehbing
- Faculty of Health Sciences, University Of Buea, Buea, Cameroon
| | - Marie-Patrice Halle
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Maimouna Mahamat
- Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaoundé, Cameroon
| | - Hermine Fouda
- Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaoundé, Cameroon
| | - Gloria Ashuntantang
- Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaoundé, Cameroon
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Fiseha T, Ekong NE, Osborne NJ. Chronic kidney disease of unknown aetiology in Africa: A review of the literature. Nephrology (Carlton) 2024; 29:177-187. [PMID: 38122827 DOI: 10.1111/nep.14264] [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: 08/01/2023] [Revised: 11/25/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
During the last two decades, an epidemic of a severe form of chronic kidney disease (CKD) unrelated to traditional risk factors (diabetes and hypertension) has been recognized in low- to middle-income countries. CKD of unknown aetiology (CKDu) mainly affects young working-age adults, and has become as an important and devastating public health issue. CKDu is a multifactorial disease with associated genetic and environmental risk factors. This review summarizes the current epidemiological evidence on the burden of CKDu and its probable environmental risk factors contributing to CKD in Africa. PubMed/Medline and the African Journals Online databases were searched to identify relevant population-based studies published in the last two decades. In the general population, the burden of CKD attributable to CKDu varied from 19.4% to 79%. Epidemiologic studies have established that environmental factors, including genetics, infectious agents, rural residence, low socioeconomic status, malnutrition, agricultural practise and exposure to agrochemicals, heavy metals, use of traditional herbs, and contaminated water sources or food contribute to the burden of CKD in the region. There is a great need for epidemiological studies exploring the true burden of CKDu and unique geographical distribution, and the role of environmental factors in the development of CKD/CKDu.
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Affiliation(s)
- Temesgen Fiseha
- Department of Clinical Laboratory Science, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | | | - Nicholas J Osborne
- Faculty of Medicine, School of Public Health, The University of Queensland, Brisbane, Queensland, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
- European Centre for Environment and Human Health (ECEHH), University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro, Cornwall, UK
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3
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Sabra MS, Hemida FK, Allam EAH. Adenine model of chronic renal failure in rats to determine whether MCC950, an NLRP3 inflammasome inhibitor, is a renopreventive. BMC Nephrol 2023; 24:377. [PMID: 38114914 PMCID: PMC10731818 DOI: 10.1186/s12882-023-03427-4] [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: 06/02/2023] [Accepted: 12/06/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Chronic renal failure (CRF) is defined by a significant decline in renal function that results in decreased salt filtration and inhibition of tubular reabsorption, which ultimately causes volume enlargement. This study evaluated the potential renopreventive effects of the NLRP3 inflammasome inhibitor MCC950 in adenine-induced CRF in rats due to conflicting evidence on the effects of MCC950 on the kidney. METHODS Since the majority of the kidney tubular abnormalities identified in people with chronic renal disease are comparable to those caused by adding 0.75 percent of adenine powder to a rat's diet each day for four weeks, this method has received broad approval as a model for evaluating kidney damage. Throughout the test, blood pressure was checked weekly and at the beginning. Additionally, oxidative stress factors, urine sample examination, histological modifications, and immunohistochemical adjustments of caspase-3 and interleukin-1 beta (IL-1) levels in renal tissues were carried out. RESULTS Results revealed that MCC950, an inhibitor of the NLRP3 inflammasome, had a renopreventive effect, which was demonstrated by a reduction in blood pressure readings and an improvement in urine, serum, and renal tissue indicators that indicate organ damage. This was also demonstrated by the decrease in neutrophil gelatinase-associated lipocalin tubular expression (NGAL). The NLRP3 inflammasome inhibitor MCC950 was found to significantly alleviate the worsening renal cellular alterations evidenced by increased expression of caspase-3 and IL-1, according to immunohistochemical tests. CONCLUSION The NLRP3 inflammasome inhibitor MCC950 demonstrated renopreventive effects in the CRF rat model, suggesting that it might be used as a treatment strategy to stop the progression of CRF.
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Affiliation(s)
- Mahmoud S Sabra
- Pharmacology Department, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | - Fahmy K Hemida
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Essmat A H Allam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
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Njamnshi RK, Maimouna M, Ngarka L, Tomta AEN, Njamnshi WY, Ashuntantang GE, Djientcheu VDPN, Njamnshi AK, Shepard DS. A retrospective cohort study on the cost-effectiveness analysis of kidney transplantation compared to dialysis in Cameroon: evidence for policy. Pan Afr Med J 2023; 46:27. [PMID: 38107339 PMCID: PMC10724036 DOI: 10.11604/pamj.2023.46.27.38706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 08/28/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction chronic kidney disease affects one in ten adults in Cameroon. Haemodialysis was the only renal replacement therapy (for adults) in Cameroon and its sub-region until November 10, 2021. Thereafter through May 2022, the Yaoundé General Hospital successfully completed four living-donor kidney transplants. This paper examines policy implications. Methods medical records of cohorts of kidney failure patients who started haemodialysis at Yaoundé General Hospital in 2012 (n=106) and 2017 (n=118) were abstracted retrospectively through 2021 and their survival analyzed with Microsoft Excel and Kaplan-Meier curves. Using hospital data, the literature, and price indexes, the annual medical cost per patient of dialysis and living-donor kidney transplantation in 2022 prices was derived. Results the 9.5-year survival rate for the 2012 cohort was 11% and the 5-year rate for the 2017 cohort was 18%. Annual haemodialysis cost per patient averaged $17,681 (26.5% from households and 73.5% from government). Initial transplantation costs averaged $10,530 per patient, all borne by the government. Under the brand-drug option, first-year transplantation follow-up costs $19,070 (4% for laboratory and 96% for drugs). Conclusion annually, haemodialysis in Cameroon costs per patient 12 times the country's average income ($1,537), driven especially by the costs of equipment purchase, maintenance, and consumables. Cameroon's initial cost of transplantation is lower than in other African countries. Generic drugs could lower annual follow-up costs by 89%. If Cameroon could achieve long-term survival with generic drugs after kidney transplantation, that modality would become a reasonable option for selected kidney failure patients (e.g. younger and without other comorbidities).
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Affiliation(s)
- Rene Kanjo Njamnshi
- Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, United States of America
- Brain Research Africa Initiative (BRAIN), Yaoundé, Cameroon
| | - Mahamat Maimouna
- Haemodialysis Unit, Yaoundé General Hospital, Yaoundé, Cameroon
- Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
| | - Leonard Ngarka
- Brain Research Africa Initiative (BRAIN), Yaoundé, Cameroon
- Neuroscience Laboratory, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
| | | | - Wepnyu Yembe Njamnshi
- Brain Research Africa Initiative (BRAIN), Yaoundé, Cameroon
- Neuroscience Laboratory, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
- Department of Clinical and Developmental Neuropsychology, University of Bournemouth, England, United Kingdom
| | - Gloria Enow Ashuntantang
- Haemodialysis Unit, Yaoundé General Hospital, Yaoundé, Cameroon
- Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
| | - Vincent de Paul Nguemaleu Djientcheu
- Clinical Neuroscience Division (Neurology-Neurosurgery), Yaoundé General Hospital, Yaoundé, Cameroon
- Department of Surgery and Specialties (Neurosurgery), Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
| | - Alfred Kongnyu Njamnshi
- Brain Research Africa Initiative (BRAIN), Yaoundé, Cameroon
- Neuroscience Laboratory, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
- Clinical Neuroscience Division (Neurology-Neurosurgery), Yaoundé General Hospital, Yaoundé, Cameroon
| | - Donald Sloane Shepard
- Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, United States of America
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Cho-Fon C, Ngokwe ZB, Ines ON. A Rare Presentation of a Bi-Maxillary Brown Tumour due to Secondary Hyperparathyroidism. Case Rep Dent 2023; 2023:6180006. [PMID: 37021075 PMCID: PMC10070017 DOI: 10.1155/2023/6180006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 03/30/2023] Open
Abstract
Brown tumours are localized bone lesions, seen in patients with high parathyroid hormone levels. This can be due to primary hyperparathyroidism, which occurs more often in neoplasms of the parathyroid gland or due to secondary hyperparathyroidism more often seen as a result of renal impairment. Facial involvement is rare, with most reports focusing on long and axial bones. However, the mandibular bone is often the only bone affected. Here, we report a rare case of a bi-maxillary attainment of brown tumour in a patient with secondary hyperparathyroidism due to chronic kidney disease.
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Ncheuveu Nkwatoh T, Fon TP, Navti LK. Potassium bromate in bread, health risks to bread consumers and toxicity symptoms amongst bakers in Bamenda, North West Region of Cameroon. Heliyon 2023; 9:e13146. [PMID: 36747561 PMCID: PMC9898660 DOI: 10.1016/j.heliyon.2023.e13146] [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: 12/25/2021] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
This study evaluated the occurrence of potassium bromate in bread, its overall health risks to bread consumers, and its toxicity symptoms amongst bakers in Bamenda. Thirteen bakeries were included in a cross-sectional survey to gather information about the quantities of bread produced and the symptoms of potassium-bromated toxicity experienced by bakers during baking. The concentration of potassium bromate in the most consumed bread types was determined using a spectrophotometric method. The hazard quotient and hazard ratio were computed for each bread type to determine its chemical and carcinogenic risks. Results showed that all bakers had experienced symptoms of potassium bromate toxicity, and painful eyes, cough, diarrhea, and sore throat were the most recurrent symptoms of toxicity. The concentration of potassium bromate in all bread samples (100%) ranged from 48.50 mg/kg to 10148.50 mg/kg, exceeding the maximum acceptable limits by 9-203 times the dose (50 mg/kg) recommended by Food and Drug Administration. There was no significant difference (p = 0.109) in potassium bromate concentration between bread types, and simple bread, milk bread, and French bread had the highest concentration of potassium bromate. The chronic hazard quotient ranged from 277.93 to 2459.36, and the hazard ratio ranged from 251434.30 to 32862.86, indicative of possible chemical and carcinogenic risks after prolonged regular consumption. From the hazard ratios, the chances of having cancer from an average daily consumption of either simple bread or milk bread, or French bread are approximately 290,000 in 1,000,000 or 220,000 in 1,000,000 or 190,000 in 1,000,000. Thus regulatory authorities need to monitor, control or prohibit the use of potassium bromate as a flour additive.
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Affiliation(s)
- Therese Ncheuveu Nkwatoh
- Department of Microbiology, Catholic University of Cameroon (CATUC), Bamenda P.O. 782, Big Mankon, Bamenda, North West Region, Cameroon
- Faculty of Agronomy and Agricultural Science, University of Dschang (CRESA Forêt-Bois), Cameroon
| | - Tayebatu Percline Fon
- Department of Biochemistry, Catholic University of Cameroon (CATUC), Bamenda P.O. 782, Big Mankon, Bamenda, North West Region, Cameroon
| | - Lifoter Kenneth Navti
- Department of Biochemistry, The University of Bamenda (UBa), P.O. Box 39, Bambili, North West Region, Cameroon
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Choumessi AT, Saha BUF, Navti LK, Tibi AS, Njeck AT, Nantia EA. Assessment of visceral adiposity index and lipid accumulation product index as markers of chronic kidney disease among diabetic and hypertensive patients at the Bamenda Regional Hospital, Cameroon: a cross-sectional study. Pan Afr Med J 2022; 42:228. [PMID: 36845245 PMCID: PMC9949295 DOI: 10.11604/pamj.2022.42.228.33499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 07/10/2022] [Indexed: 11/11/2022] Open
Abstract
Introduction very limited studies have emphasized the importance of visceral adiposity index (VAI) and lipid accumulation product index (LAPI) in the prevention and management of chronic kidney disease (CKD) especially in diabetic and hypertension patients in developing countries including Cameroon. This study aimed at assessing whether VAI and LAPI are markers of CKD among diabetic and hypertensive patients at the Bamenda Regional Hospital, Cameroon. Methods this analytical cross-sectional study was conducted at Bamenda Regional Hospital and involved 200 diabetic and/or hypertensive patients, including 77 males and 123 females. The participant´s anthropometric indices, biochemical parameters, VAI, LAPI, and glomerular filtration rate were investigated. A structured questionnaire was used to assess some risk factors of CKD and participant lifestyle. Results the overweight (41%) and obesity (34%) statuses were prevalent in the population. A considerable proportion of subjects had elevated total cholesterol (46%), low-density lipoprotein (LDL) cholesterol (37.50%), triglycerides (24.5%), urea (40.5%) and creatinine (53.5%) levels. Stage 1 to 3 CKD was largely present in the elderly (>54-year-old) affecting the majority of patients (57.5%). Low education level and lack of physical activity were significantly associated with the prevalence of CKD (p < 0.001). On the contrary to creatinine (unadjusted OR = 1.36; 95% CI: 1.13-1.62), urea (unadjusted OR = 1.02; 95% CI: 1.01-1.03), HDL (unadjusted OR = 0.87; 95% CI: 0.78-0.97), total cholesterol/HDL ratio (unadjusted OR = 1.38; 95% CI; 1.12-1.71), VAI (unadjusted OR = 1.13; 95% CI: 1.05-1.22) and LAPI (unadjusted OR = 1.00; 95% CI: 1.00-1.00) were significantly associated with CKD status of the patients while HDL was negatively associated (unadjusted OR = 0.87; 95% CI: 0.78-0.97). The 9.905 and 5679 cut-offs of VAI and LAPI respectively for CKD discrimination obtained high sensitivity (75.0%) and specificity (≥79.6%). Conclusion visceral adiposity index and LAPI were associated with CKD among diabetic and hypertensive patients. Visceral adiposity index and LAPI could be user-friendly tools for the early diagnosis of CKD among these categories of patients in Cameroon.
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Affiliation(s)
| | | | - Lifoter Kenneth Navti
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Ateh Sheron Tibi
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Anweck Thecla Njeck
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon
| | - Edouard Akono Nantia
- Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon,Corresponding author: Edouard Akono Nantia, Department of Biochemistry, Faculty of Science, University of Bamenda, Bambili, Cameroon.
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8
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Ashuntantang G, Miljeteig I, Luyckx VA. Bedside rationing and moral distress in nephrologists in sub- Saharan Africa. BMC Nephrol 2022; 23:196. [PMID: 35614418 PMCID: PMC9131991 DOI: 10.1186/s12882-022-02827-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 05/11/2022] [Indexed: 11/11/2022] Open
Abstract
Background Kidney diseases constitute an important proportion of the non-communicable disease (NCD) burden in Sub-Saharan Africa (SSA), though prevention, diagnosis and treatment of kidney diseases are less prioritized in public health budgets than other high-burden NCDs. Dialysis is not considered cost-effective, and for those patients accessing the limited service available, high out-of-pocket expenses are common and few continue care over time. This study assessed challenges faced by nephrologists in SSA who manage patients needing dialysis. The specific focus was to investigate if and how physicians respond to bedside rationing situations. Methods A survey was conducted among a randomly selected group of nephrologists from SSA. The questionnaire was based on a previously validated survey instrument. A descriptive and narrative approach was used for analysis. Results Among 40 respondents, the majority saw patients weekly with acute kidney injury (AKI) or end-stage kidney failure (ESKF) in need of dialysis whom they could not dialyze. When dialysis was provided, clinical compromises were common, and 66% of nephrologists reported lack of basic diagnostics and medication and > 80% reported high out-of-pocket expenses for patients. Several patient-, disease- and institutional factors influenced who got access to dialysis. Patients’ financial constraints and poor chances of survival limited the likelihood of receiving dialysis (reported by 79 and 78% of nephrologists respectively), while a patient’s being the family bread-winner increased the likelihood (reported by 56%). Patient and institutional constraints resulted in most nephrologists (88%) frequently having to make difficult choices, sometimes having to choose between patients. Few reported existence of priority setting guidelines. Most nephrologists (74%) always, often or sometimes felt burdened by ethical dilemmas and worried about patients out of hospital hours. As a consequence, almost 46% of nephrologists reported frequently regretting their choice of profession and 26% had considered leaving the country. Conclusion Nephrologists in SSA face harsh priority setting at the bedside without available guidance. The moral distress is high. While publicly funded dialysis treatment might not be prioritized in essential health care packages on the path to universal health coverage, the suffering of the patients, families and the providers must be acknowledged and addressed to increase fairness in these decisions. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02827-2.
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Affiliation(s)
- Gloria Ashuntantang
- Yaoundé General Hospital Faculty of Medicine & Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon.,Faculty of Health Sciences, The University of Bamenda, Bamenda, Cameroon
| | - Ingrid Miljeteig
- Bergen Centre for Ethics and Priority Setting, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway. .,Department of Research and Development, Helse Bergen Health Trust, Bergen, Norway.
| | - Valerie A Luyckx
- Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa.,Renal Division, Brigham and Women's Hospital, Harvard medical School, Boston, MA, USA.,Department of Nephrology, University Children's Hospital, Zurich, Switzerland
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Jingi AM, Nkoke C, Noubiap JJ, Teuwafeu D, Mambap AT, Nkouonlack C, Gobina R, Njume D, Dzudie A, Ashuntantang G. Prevalence, correlates and in-hospital outcomes of kidney dysfunction in hospitalized patients with heart failure in Buea-Cameroon. BMC Nephrol 2022; 23:8. [PMID: 34979971 PMCID: PMC8722319 DOI: 10.1186/s12882-021-02641-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022] Open
Abstract
Background Kidney dysfunction is common in patients with heart failure (HF) and has been associated with poor outcomes. This study aimed to determine the prevalence, correlates, and prognosis of kidney dysfunction in patients with HF in Cameroon, an understudied population. Methods We conducted a cross-sectional study in consecutive patients hospitalized with HF between June 2016 and November 2017 in the Buea Regional Hospital, Cameroon. Kidney dysfunction was defined as an estimated glomerular filtration rate < 60 ml/min/1.73m2. Prognostic outcomes included death and prolonged hospital stay (> 7 days). We also performed a sensitivity analysis excluding racial considerations. Results Seventy four patients (86.1% of those eligible) were included. Their median age was 60 (interquartile range: 44–72) years and 46.0% (n = 34) were males. Half of patients (n = 37) had kidney dysfunction. Correlates of kidney dysfunction included previous diagnosis of HF (adjusted odds ratio [aOR]4.3, 95% CI: 1.1–17.5) and left ventricular hypertrophy (aOR3.4, 95% CI: 1.1–9.9). Thirty-six (48.9%) had prolonged hospital stay, and seven (9.5%) patients died in hospital. Kidney dysfunction was not associated with in-hospital death (aOR 0.4, 95% CI: 0.1–2) nor prolonged hospital stay (aOR 2.04, 0.8–5.3). In sensitivity analysis (excluding racial consideration), factors associated with Kidney dysfunction in HF were; anemia (aOR: 3.0, 95% CI: 1.1–8.5), chronic heart failure (aOR: 4.7, 95% CI: 0.9–24.6), heart rate on admission < 90 bpm (aOR: 3.4, 95% CI: 1.1–9.1), left atrial dilation (aOR: 3.2, 95% CI: 1.04–10), and hypertensive heart disease (aOR: 3.1, 95% CI: 1.2–8.4). Kidney dysfunction in HF was associated with hospital stay > 7 days (OR: 2.6, 95% CI: 1–6.8). Conclusion Moderate-to-severe kidney dysfunction was seen in half of the patients hospitalized with HF in our setting, and this was associated with a previous diagnosis of HF and left ventricular hypertrophy. Kidney dysfunction might not be the main driver of poor HF outcomes in this population. In sensitivity analysis, this was associated with anemia, chronic heart failure, heart rate on admission less than 90 bpm, left atrial dilatation, and hypertensive heart disease. Kidney dysfunction was associated with hospital stay > 7 days. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02641-2.
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Affiliation(s)
| | - Clovis Nkoke
- Buea Regional Hospital, Buea, Cameroon. .,Clinical Research Education, Networking and Consultancy (CRENC), Douala, Cameroon.
| | - Jean Jacques Noubiap
- Center for Heart Rhythm Disorders, University of Adelaide, Adelaide, SA, Australia
| | - Denis Teuwafeu
- Buea Regional Hospital, Buea, Cameroon.,Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | - Alex T Mambap
- Faculty of Health Sciences, University of Bamenda, Bamenda, Cameroon
| | - Cyrille Nkouonlack
- Buea Regional Hospital, Buea, Cameroon.,Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | | | - Debimeh Njume
- Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, Yaoundé, Cameroon
| | - Anastase Dzudie
- Clinical Research Education, Networking and Consultancy (CRENC), Douala, Cameroon.,Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, Yaoundé, Cameroon
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Prevalence, incidence and predictors of renal impairment in persons with HIV receiving protease-inhibitors in rural Tanzania. PLoS One 2021; 16:e0261367. [PMID: 34910776 PMCID: PMC8673654 DOI: 10.1371/journal.pone.0261367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/30/2021] [Indexed: 11/25/2022] Open
Abstract
Objective Ritonavir-boosted protease inhibitors (bPI) in people living with HIV (PLWH) have been associated with renal impairment. Limited data are available from rural sub-Saharan Africa. Methods Using data from the Kilombero and Ulanga Antiretroviral Cohort Study (KIULARCO) in rural Tanzania from 2005-01/2020, we assessed the prevalence of renal impairment (estimated glomerular filtration rate <60 mL/min/1.73m2) at the time of switch from first-line antiretroviral treatment (ART) to bPI-regimen and the incidence of renal impairment on bPI. We assessed risk factors for renal impairment using logistic and Cox regression models. Results Renal impairment was present in 52/687 PLWH (7.6%) at the switch to bPI. Among 556 participants with normal kidney function at switch, 41 (7.4%) developed renal impairment after a median time of 3.5 (IQR 1.6–5.1) years (incidence 22/1,000 person-years (95%CI 16.1–29.8)). Factors associated with renal impairment at switch were older age (adjusted odds ratio (aOR) 1.55 per 10 years; 95%CI 1.15–2.11), body mass index (BMI) <18.5 kg/m2 (aOR 2.80 versus ≥18kg/m2; 95%CI 1.28–6.14) and arterial hypertension (aOR 2.33; 95%CI 1.03–5.28). The risk of renal impairment was lower with increased duration of ART use (aOR 0.78 per one-year increase; 95%CI 0.67–0.91). The renal impairment incidence under bPI was associated with older age (adjusted hazard ratio 2.01 per 10 years; 95%CI 1.46–2.78). Conclusions In PLWH in rural sub-Saharan Africa, prevalence and incidence of renal impairment among those who were switched from first-line to bPI-regimens were high. We found associations between renal impairment and older age, arterial hypertension, low BMI and time on ART.
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Hashimoto A, Sonohata M, Kii S, Kawano S, Mawatari M. Hydroxyapatite-coated cementless total hip arthroplasty for patients undergoing dialysis: a study of 30 hips with a minimum follow-up period of 5 years. BMC Musculoskelet Disord 2021; 22:842. [PMID: 34592965 PMCID: PMC8485528 DOI: 10.1186/s12891-021-04718-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/09/2021] [Indexed: 11/10/2022] Open
Abstract
Background The number of total hip arthroplasties (THAs) performed for patients undergoing dialysis is increasing. However, there are few reports of cementless THA for patients undergoing dialysis. This study investigated the mid-term to long-term results of hydroxyapatite (HA)-coated cementless THA for dialysis patients. Methods This single-center, retrospective study enrolled dialysis patients undergoing primary HA-coated cementless THA. A total of 24 patients (30 hips) were included in the final analyses. The Harris hip score and radiographic results were assessed preoperatively and during the final follow-up examination. Postoperative complications and mortality rates were recorded. The mean follow-up period was 109 months (range, 60–216 months). Results The total Harris hip score significantly improved from 40 to 84 points. The overall cumulative survival rates with revision as the endpoint were 100% at 5 years and 90.4% at both 10 and 15 years. Stress shielding was observed in 24 hips (80%). No deaths were related to the primary THA. Complications included periprosthetic fracture for one patient (3.3%), blood transfusion for nine patients (30%), shunt blockage for two patients (6.7%), deep infection for one patient (3.3%), and dislocation for two patients (6.7%). Conclusions HA-coated cementless THA resulted in good mid-term outcomes for patients undergoing dialysis with no mortality risk. However, the procedure involved a relatively high perioperative risk of blood transfusion. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-021-04718-3.
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Affiliation(s)
- Akira Hashimoto
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, 849-8501, Japan
| | - Motoki Sonohata
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, 849-8501, Japan.
| | - Sakumo Kii
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, 849-8501, Japan
| | - Shunsuke Kawano
- Research Center of Arthroplasty, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, 849-8501, Japan
| | - Masaaki Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, 849-8501, Japan
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Sonfack CS, Nguelefack-Mbuyo EP, Kojom JJ, Lappa EL, Peyembouo FP, Fofié CK, Nolé T, Nguelefack TB, Dongmo AB. The Aqueous Extract from the Stem Bark of Garcinia lucida Vesque (Clusiaceae) Exhibits Cardioprotective and Nephroprotective Effects in Adenine-Induced Chronic Kidney Disease in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:5581041. [PMID: 33790975 PMCID: PMC7984895 DOI: 10.1155/2021/5581041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 11/18/2022]
Abstract
Chronic kidney disease (CKD) is a serious health problem with high morbidity and mortality, mainly attributable to cardiovascular risk. Garcinia lucida is traditionally used in Cameroon for the management of cardiovascular diseases. The aim of this study was to evaluate the cardioprotective and nephroprotective effects of the aqueous extract from the stem bark of G. lucida (AEGL). The in vitro antioxidant effect of AEGL was assessed at concentrations ranging 1-300 μg/mL against DPPH, lipid peroxidation, and AAPH-induced hemolysis. The reducing power and phenolic and flavonoids contents were also determined. CKD was induced by intraperitoneal bolus injection of adenine (50 mg/kg/day) for 4 consecutive weeks to male Wistar rats. AEGL (150 and 300 mg/kg/day) or captopril (20 mg/kg/day) was concomitantly administered with adenine per os. Bodyweight and blood pressure were monitored at baseline and weekly during the test. At the end of the experiment, plasma creatinine, urea, AST, and ALT were quantified. Proteinuria, creatinine excretion, and creatinine clearance were also assessed. The effect on GSH, CAT, and SOD activity was evaluated in cardiac and renal homogenates. Sections of the heart and kidney were stained with hematoxylin and eosin. AEGL exhibited a potent in vitro antioxidant activity and was shown to possess a large amount of phenolic compounds. Adenine alone increased blood pressure, cardiac and kidney mass, proteinuria, protein to creatinine ratio, plasma creatinine, AST, and urea levels (p < 0.05, 0.01, and 0.001). Besides, the bodyweight and creatinine clearance were significantly reduced (p < 0.05 and p < 0.01). All these alterations were blunted by the plant extract, except the bodyweight loss. In addition, AEGL improved GSH levels and CAT and SOD activities. AEGL attenuated adenine-induced glomerular necrosis, tubular dilatation, and cardiac inflammation. AEGL exhibits cardioprotective and nephroprotective effects that may be ascribed to its antihypertensive and antioxidant activities.
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Affiliation(s)
- Christelle Stéphanie Sonfack
- Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
- Department of Animal Biology and Physiology, Faculty of Sciences, University of Douala, P.O. Box 24157, Douala, Cameroon
| | - Elvine Pami Nguelefack-Mbuyo
- Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Jacquy Joyce Kojom
- Department of Animal Biology and Physiology, Faculty of Sciences, University of Douala, P.O. Box 24157, Douala, Cameroon
| | - Edwige Laure Lappa
- Department of Animal Biology and Physiology, Faculty of Sciences, University of Douala, P.O. Box 24157, Douala, Cameroon
| | - Fernande Petingmve Peyembouo
- Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Christian Kuété Fofié
- Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Tsabang Nolé
- Higher Institute of Environment Sciences, P.O. Box 16317, Yaounde, Cameroon
| | - Télesphore Benoît Nguelefack
- Laboratory of Animal Physiology and Phytopharmacology, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Alain Bertrand Dongmo
- Department of Animal Biology and Physiology, Faculty of Sciences, University of Douala, P.O. Box 24157, Douala, Cameroon
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