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Mekonnen BA, Alene TD, Yimer YA, Lakew AM, Genet GB. Prevalence and associated factors of infection in children with nephrotic syndrome aged 2-18 years in the northwest and east Amhara region, Ethiopia: a multi-center cross-sectional retrospective study. BMC Public Health 2024; 24:1845. [PMID: 38987746 PMCID: PMC11238409 DOI: 10.1186/s12889-024-19408-7] [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: 02/22/2024] [Accepted: 07/08/2024] [Indexed: 07/12/2024] Open
Abstract
BACKGROUND Infection is the most common complication of pediatric patients with nephrotic syndrome. The factors associated with infection in nephrotic syndrome are lacking. The objective of the study was to identify the prevalence and associated factors among children with nephrotic syndrome aged 2 to 18 years. METHODS We conducted a hospital-based retrospective cross-sectional study. The data collector installed an Epi5 collector electronic data-collecting tool from Google Play. Then, we exported the data to Stata version 15.1 for analysis. The mean, standard deviation, frequency, and percentage were used for descriptive statistics. The logistic regression model was used to identify the factors associated with infection. RESULTS In this study, the prevalence of infection among nephrotic syndrome children is 39.8% (95%CI: 30.7, 49.7). The types of infection identified were pneumonia, urinary tract infection, diarrheal disease, cutaneous fungal infection, intestinal parasitic infection, and sepsis. The presence of hematuria increased the odds of infection by 5-times. On the other hand, low level of serum albumin increased the odds of infection by 7%. Being a rural resident increased the odds of infection by 3.3-times as compared to urban. CONCLUSIONS Serum albumin level, presence of hematuria, and rural residence were significantly associated with infection. We recommended a longitudinal incidence study on large sample size at multicenter to strengthen this finding.
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Affiliation(s)
- Birhanu Abie Mekonnen
- Department of Pediatrics and Child Health, School of Medicine, University of Gondar, PO.Box:196, Gondar, Ethiopia.
| | - Tilahun Dessie Alene
- Department of Pediatrics and Child Health, School of Medicine, Wollo University, Dessie, Ethiopia
| | - Yalemwork Anteneh Yimer
- Department of Pediatrics and child health, School of Medicine, Bahir Dar University, Bahir Dar, Ethiopia
| | - Ayenew Molla Lakew
- Department of Epidemiology and Bio-statistics, Institute of Public Health, University of Gondar, Gondar, Ethiopia
| | - Geta Bayu Genet
- Department of Pediatrics and Child Health, School of Medicine, University of Gondar, PO.Box:196, Gondar, Ethiopia
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2
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Ekrikpo UE, Obiagwu PN, Udo AI, Chukwuonye II, Noubiap JJ, Okpechi-Samuel US, Udoudo UAN, Tannor EK, Ngoka SC, Mbah IO, Bello AK, Okpechi IG. Prevalence and distribution of primary glomerular diseases in Africa: a systematic review and meta-analysis of observational studies. Pan Afr Med J 2023; 45:153. [PMID: 37869232 PMCID: PMC10589414 DOI: 10.11604/pamj.2023.45.153.40741] [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: 06/12/2023] [Accepted: 08/03/2023] [Indexed: 10/24/2023] Open
Abstract
Glomerulonephritis (GN) is a predominant cause of kidney failure in Africa. The prevalence of primary GNs varies widely across Africa depending on the relative proportion of secondary GNs and genetic predispositions. We assessed the overall and sub-regional prevalence of primary GN and its histologic subtypes in Africa. We searched PubMed, EMBASE and African Journals Online for studies of biopsy-proven primary GNs across all age groups in Africa published between 2010 and 2022. Data for primary GNs [minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), membranous nephropathy (MN), mesangioproliferative GN (MesPGN), membranoproliferative GN (MPGN), post-infectious GN (PIGN), IgA Nephropathy (IgAN), and crescentic GN (CresGN)] were extracted. Pooled prevalence was determined using the random effects model. Seventeen eligible articles (n = 6,494 individuals) from 8 African countries met the inclusion criteria. The overall pooled prevalence of FSGS, MCD, MN, MPGN, MesPGN, PIGN, IgAN and CresGN was 26.10%, 22.40%, 8.40%, 6.40%, 6.40%, 2.60%, 2.60%, 1.40%, respectively. Only 4 studies (23.5%) used light microscopy (LM), immunofluorescence (IF), and electron microscopy (EM) for diagnosis. There were significant differences in the distribution of histologic subtypes in the paediatric compared to the adult population and across geographic sub-regions, with West Africa having a higher prevalence of FSGS. Overall, the dominance of FSGS across most regions and age groups has implications for disease diagnosis and ongoing care. Research efforts to understand the impact of this trend on kidney disease outcomes and efforts to improve kidney biopsy practice as a means of early disease detection are needed in Africa.
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Affiliation(s)
| | - Patience Ngozi Obiagwu
- Department of Paediatrics, Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | | | | | - Jean Jacques Noubiap
- Division of Cardiology, Department of Medicine, University of California-San Francisco, San Francisco, California, USA
| | | | | | - Elliot Koranteng Tannor
- Department of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Renal Unit, Department of Medicine, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | | | | | - Aminu Kasarawa Bello
- Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada
| | - Ikechi Gareth Okpechi
- Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada
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3
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Williams AE, Esezobor CI, Lane BM, Gbadegesin RA. Hiding in plain sight: genetics of childhood steroid-resistant nephrotic syndrome in Sub-Saharan Africa. Pediatr Nephrol 2023; 38:2003-2012. [PMID: 36459247 PMCID: PMC10416081 DOI: 10.1007/s00467-022-05831-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 12/03/2022]
Abstract
Steroid-resistant nephrotic syndrome (SRNS) is the most severe form of childhood nephrotic syndrome with an increased risk of progression to chronic kidney disease stage 5. Research endeavors to date have identified more than 80 genes that are associated with SRNS. Most of these genes regulate the structure and function of the podocyte, the visceral epithelial cells of the glomerulus. Although individuals of African ancestry have the highest prevalence of SRNS, especially those from Sub-Saharan Africa (SSA), with rates as high as 30-40% of all cases of nephrotic syndrome, studies focusing on the characterization and understanding of the genetic basis of SRNS in the region are negligible compared with Europe and North America. Therefore, it remains unclear if some of the variants in SRNS genes that are deemed pathogenic for SRNS are truly disease causing, and if the leading causes of monogenic nephrotic syndrome in other populations are the same for children in SSA with SRNS. Other implications of this lack of genetic data for SRNS in the region include the exclusion of children from the region from clinical trials aimed at identifying potential novel therapeutic agents for this severe form of nephrotic syndrome. This review underlines a need for concerted efforts to advance the genetic basis of SRNS in children in SSA. Such endeavors will complement global efforts at understanding the genetic basis of nephrotic syndrome.
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Affiliation(s)
- Anna Elizabeth Williams
- Department of Pediatrics, Division of Nephrology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Christopher I Esezobor
- Department of Pediatrics, Faculty of Clinical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Brandon M Lane
- Department of Pediatrics, Division of Nephrology, Duke University Medical Center, Durham, NC, 27710, USA
- Duke Molecular Physiology Institute, Duke University, Durham, NC, USA
| | - Rasheed A Gbadegesin
- Department of Pediatrics, Division of Nephrology, Duke University Medical Center, Durham, NC, 27710, USA.
- Duke Molecular Physiology Institute, Duke University, Durham, NC, USA.
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4
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Mbanefo NR, Ogbuka FN, Nwaoha CA, Odimegwu CL, Uwaezuoke SN, Okafor HU. The pattern of steroid sensitivity and steroid resistance in childhood idiopathic nephrotic syndrome: A 5-year retrospective observational descriptive study in a South-East Nigerian tertiary hospital. Niger J Clin Pract 2023; 26:1017-1022. [PMID: 37635589 DOI: 10.4103/njcp.njcp_1_23] [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] [Indexed: 08/29/2023]
Abstract
Background/Aim Nephrotic syndrome is the most common glomerular disease of childhood. Majority of the idiopathic cases frequently respond to steroid therapy and are regarded as steroid-sensitive nephrotic syndrome. Several studies have reported a change in this usual pattern to steroid-resistant nephrotic syndrome in Nigerian children. This study aimed to determine the pattern of steroid sensitivity and steroid resistance in childhood idiopathic nephrotic syndrome seen at a tertiary hospital in Enugu, south-east Nigeria. Materials and Methods A retrospective study conducted in children with idiopathic nephrotic syndrome seen at the University of Nigeria Teaching Hospital, Ituku-Ozalla Enugu, over 5 years (from 2016 to 2020). The demographic variables, clinical data, and histopathological pattern were documented. Renal biopsies were studied by light microscope only. Results Of a total of 150 patients, 105 (70%) were males, while 45 (30%) were females. Ninety six (64%) were aged 1-10 years. Fifty four (36%) were aged 11-18 years. Forty eight (32%) were aged 1-5 years. Mean age was 8.67 ± 4.69 years. One hundred and six (71%) initially had steroid-sensitive nephrotic syndrome; 12 (11.3%) and seven (6.6%) later became frequent-relapsers and steroid-dependent, respectively. Forty four (29.3%) had steroid-resistant nephrotic syndrome. Sixty eight had renal biopsy; the most common indication being steroid-resistance. The most common histological pattern was focal segmental glomerulosclerosis seen in 63.2% of these patients. Only four (9%) had renal transplant. Conclusion Although the prevalence of steroid-sensitive nephrotic syndrome is higher in this clime, there is a rising incidence of steroid-resistant pattern attributed to incident cases of focal segmental glomerulosclerosis.
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Affiliation(s)
- N R Mbanefo
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Nigeria
| | - F N Ogbuka
- Department of Paediatrics, Enugu State University of Science and Technology Teaching Hospital, Parklane, Enugu, Nigeria
| | - C A Nwaoha
- Department of Paediatrics, Federal Medical Center, Owerri, Imo, Nigeria
| | - C L Odimegwu
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Nigeria
| | - S N Uwaezuoke
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Nigeria
| | - H U Okafor
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Nigeria
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5
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Abstract
Nephrotic syndrome is a common childhood glomerular disease that is associated with massive proteinuria and edema. Children with nephrotic syndrome are at risk of chronic kidney disease, disease-related complications, and treatment-related complications. Patients with frequently relapsing disease or steroid toxicity may require newer immunosuppressive medications. However, access to these medications is limited in many African countries owing to prohibitive cost, the need for frequent therapeutic drug monitoring, and a lack of appropriate facilities. This narrative review examines the epidemiology of childhood nephrotic syndrome in Africa, including trends in treatment and patient outcomes. In most of North Africa, as well as among White and Indian populations in South Africa, the epidemiology and treatment of childhood nephrotic syndrome closely resembles that of European and North American populations. Historically, secondary causes of nephrotic syndrome (eg, quartan malaria nephropathy and hepatitis B-associated nephropathy) were predominant among Blacks in Africa. Over time, the proportion of secondary cases has decreased, along with rates of steroid resistance. However, focal segmental glomerulosclerosis increasingly has been reported among patients with steroid resistance. There is a need for consensus guidelines for the management of childhood nephrotic syndrome in Africa. Furthermore, establishing an African nephrotic syndrome registry could facilitate monitoring of disease and treatment trends, and provide opportunities for advocacy and research to improve patient outcomes.
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6
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Mattoo TK, Sanjad S. Current Understanding of Nephrotic Syndrome in Children. Pediatr Clin North Am 2022; 69:1079-1098. [PMID: 36880923 DOI: 10.1016/j.pcl.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Nephrotic syndrome in children is mostly idiopathic in origin. About 90% of patients respond to corticosteroids; 80-90% have at least one relapse and 3-10% become corticosteroid resistant after the initial response. A kidney biopsy is seldom indicated for diagnosis except in patients with atypical presentation or corticosteroid resistance. For those in remission, the risk of relapse is reduced by the administration of daily low dose corticosteroids for 5-7 days at the onset of an upper respiratory infection. Some patients may continue having relapses through adult life. Many country-specific practice guidelines have been published, which are very similar with clinically insignificant differences.
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Affiliation(s)
- Tej K Mattoo
- Department of Pediatrics, Wayne State University School of Medicine, 400 Mack Avenue, Suite 1 East, Detroit, MI 48201, USA.
| | - Sami Sanjad
- American University of Beirut Medical Center, Beirut, Lebanon
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Sakr HI, Edrees B, Taher HO, Miliany TT, Gazzaz RY, AlRuwaithi AO, Alamer MF, Metawee ME. Combined Methylprednisolone Pulse Therapy plus Rituximab for Treating a Rare Juvenile Steroid-Resistant Nephrotic Syndrome with Cerebral Venous Sinus Thrombosis: A Case Report. J Cardiovasc Dev Dis 2022; 9:383. [PMID: 36354782 PMCID: PMC9692607 DOI: 10.3390/jcdd9110383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 10/03/2024] Open
Abstract
Background: Cerebral venous sinus thrombosis (CVST) secondary to nephrotic syndrome (NS) is rarely reported. Additionally, treating steroid-sensitive nephrotic syndrome (SSNS) that changes to steroid resistance (SRNS) is difficult, with many relapses and side effects. Case presentation: A 32-month-old SSNS male child turned into SRNS and developed cerebral venous sinus thrombosis (CVST), a rare complication of NS. As a result of the administration of combined pulse methylprednisolone and IV Rituximab (RTX) therapy, the patient showed marked improvement, the results of urine analysis were remarkably improved, and the child started to respond to treatment. Conclusion: Successful treatment of a rare case of juvenile SSNS behaving as SRNS with the development of CVST could be established using combined steroid pulse therapy, Enoxaparin, and the B lymphocytes monoclonal antibodies RTX.
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Affiliation(s)
- Hader I. Sakr
- Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo 11511, Egypt
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Burhan Edrees
- Department of Pediatrics, Umm Al-Qura University, Makkah 24451, Saudi Arabia
| | - Hussein Omar Taher
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Tuleen Talal Miliany
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Raneem Yasser Gazzaz
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Asma Omar AlRuwaithi
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Mohammed Fouad Alamer
- Medicine Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Mostafa E. Metawee
- Department of Histology and Cytology, Faculty of Medicine, Al-Azhar University, Cairo 11511, Egypt
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8
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Welegerima Y, Feyissa M, Nedi T. Treatment Outcomes of Pediatric Nephrotic Syndrome Patients Treated in Ayder Comprehensive Specialized and Mekelle General Hospitals, Ethiopia. Int J Nephrol Renovasc Dis 2021; 14:149-156. [PMID: 34079333 PMCID: PMC8163966 DOI: 10.2147/ijnrd.s310567] [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: 03/11/2021] [Accepted: 05/06/2021] [Indexed: 11/23/2022] Open
Abstract
Background Nephrotic syndrome is a common glomerular disease in children with a relapsing course that leads to complications and steroid-related toxicities. In Ethiopia, data on the outcomes of steroid therapy in pediatric nephrotic syndrome patients are limited. Objective The aim of the study was to assess the treatment outcomes of pediatric nephrotic syndrome patients in Ayder Specialized Comprehensive and Mekelle General Hospitals. Methods A retrospective study was conducted among children treated for nephrotic syndrome from 2010 to 2017 in Ayder Comprehensive Specialized and Mekelle General Hospitals. Univariate and multivariate logic regression analyses were performed to identify determinants of treatment outcome with a p-value <0.05 considered statistically significant. Results A total of 159 pediatric patients treated for nephrotic syndrome in both hospitals were included in this study. The mean age of participants at the initial diagnosis was 5.21 ± 2.66 years. Most of the patients 150 (94.3%) achieved remission within 4 weeks of steroid therapy. Among initial responders, the majority of the patients 117 (78%) encountered relapses of which 65 (40.9%) were developed frequent relapse/steroid-dependent nephrotic syndrome. Also, the majority of patients 102 (64.5%) encountered steroid-related toxicities. The predictors of frequent relapse/steroid-dependent nephrotic syndrome were age of ≤6 years (AOR=3.16; p=0.00), hematuria (AOR=6.74; p=0.00), infection (AOR=3.28; p=0.01), acute renal failure (AOR=6.09; p=0.01), serum albumin below 1.5g/dl (8.38, p=0.01) and lack of remission within 2 weeks (AOR=3.69; p=0.00). Conclusion Most of the pediatric NS patients treated in ACSH and MGH have achieved remission with initial to steroid therapy. However, there was a higher relapse rate and steroid-related toxicities among pediatric NS patients who achieved remission. Early age at diagnosis, hematuria, reduced GFR, infection, and remission time were the independent predictors of the frequent relapsing/steroid-dependent nephrotic disease course.
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Affiliation(s)
- Yainu Welegerima
- Department of Pharmacy, College of Health Sciences, Mekelle University, Mekelle, Tigray, Ethiopia
| | - Mamo Feyissa
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Teshome Nedi
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
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9
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Lee JM, Kronbichler A, Shin JI, Oh J. Current understandings in treating children with steroid-resistant nephrotic syndrome. Pediatr Nephrol 2021; 36:747-761. [PMID: 32086590 PMCID: PMC7910243 DOI: 10.1007/s00467-020-04476-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 12/22/2019] [Accepted: 01/07/2020] [Indexed: 12/27/2022]
Abstract
Steroid-resistant nephrotic syndrome (SRNS) remains a challenge for paediatric nephrologists. SRNS is viewed as a heterogeneous disease entity including immune-based and monogenic aetiologies. Because SRNS is rare, treatment strategies are individualized and vary among centres of expertise. Calcineurin inhibitors (CNI) have been effectively used to induce remission in patients with immune-based SRNS; however, there is still no consensus on treating children who become either CNI-dependent or CNI-resistant. Rituximab is a steroid-sparing agent for patients with steroid-sensitive nephrotic syndrome, but its efficacy in SRNS is controversial. Recently, several novel monoclonal antibodies are emerging as treatment option, but their efficacy remains to be seen. Non-immune therapies, such as angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers, have been proven efficacious in children with SRNS and are recommended as adjuvant agents. This review summarizes and discusses our current understandings in treating children with idiopathic SRNS.
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Affiliation(s)
- Jiwon M. Lee
- Department of Pediatrics, Chungnam National University Hospital, Daejeon, South Korea
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, C.P.O. Box 8044, Seoul, 120-752 South Korea ,Division of Pediatric Nephrology, Severance Children’s Hospital, Seoul, South Korea ,Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Jun Oh
- Department of Pediatrics Nephrology, University Hamburg-Eppendorf, Martinistrasse, 52 20246, Hamburg, Germany.
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McCulloch M, Luyckx VA, Cullis B, Davies SJ, Finkelstein FO, Yap HK, Feehally J, Smoyer WE. Challenges of access to kidney care for children in low-resource settings. Nat Rev Nephrol 2020; 17:33-45. [PMID: 33005036 DOI: 10.1038/s41581-020-00338-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2020] [Indexed: 12/11/2022]
Abstract
Kidney disease is a global public health concern across the age spectrum, including in children. However, our understanding of the true burden of kidney disease in low-resource areas is often hampered by a lack of disease awareness and access to diagnosis. Chronic kidney disease (CKD) in low-resource settings poses multiple challenges, including late diagnosis, the need for ongoing access to care and the frequent unavailability of costly therapies such as dialysis and transplantation. Moreover, children in such settings are at particular risk of acute kidney injury (AKI) owing to preventable and/or reversible causes - many children likely die from potentially reversible kidney disease because they lack access to appropriate care. Acute peritoneal dialysis (PD) is an important low-cost treatment option. Initiatives, such as the Saving Young Lives programme, to train local medical staff from low-resource areas to provide care for AKI, including acute PD, have already saved hundreds of children. Future priorities include capacity building for both educational purposes and to provide further resources for AKI management. As local knowledge and confidence increase, CKD management strategies should also develop. Increased awareness and advocacy at both the local government and international levels will be required to continue to improve the diagnosis and treatment of AKI and CKD in children worldwide.
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Affiliation(s)
- Mignon McCulloch
- Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa.
| | - Valerie A Luyckx
- Institute of Biomedical Ethics and the History of Medicine, University of Zurich, Zurich, Switzerland.,Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Pediatric and Adult Renal Units, University of Cape Town, Cape Town, South Africa
| | - Brett Cullis
- Pediatric and Adult Renal Units, University of Cape Town, Cape Town, South Africa.,Nelson Mandela School of Medicine, University of Kwazulu Natal, Durban, South Africa
| | - Simon J Davies
- Faculty of Medicine and Health Sciences, Keele University, Keele, UK
| | | | - Hui Kim Yap
- Khoo Teck Puat - National University Children's Medical Institute, National University Hospital, Kent Ridge, Singapore
| | - John Feehally
- International Society of Nephrology, Brussels, Belgium
| | - William E Smoyer
- Nationwide Children's Hospital, Columbus, OH, USA.,The Ohio State University, Columbus, OH, USA
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Esezobor CI, Solarin AU, Gbadegesin R. Changing epidemiology of nephrotic syndrome in Nigerian children: A cross-sectional study. PLoS One 2020; 15:e0239300. [PMID: 32956418 PMCID: PMC7505420 DOI: 10.1371/journal.pone.0239300] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/02/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Recent reports from small studies in West Africa suggest that Black children may have high rate of steroid sensitivity nephrotic syndrome (SSNS) contrary to long held knowledge. Herein, we determined the proportion of children with idiopathic nephrotic syndrome (INS) who achieved complete remission with steroid therapy and identified factors associated with complete remission. METHODS We reviewed the medical records of 241 children with INS in two centres in Lagos from 2010 to 2019. We extracted demographic data, clinical features, laboratory values at the time of diagnosis, and receipt and response to steroids and other immunosuppressants. RESULTS The median (interquartile range) age at diagnosis of INS was 5.1 (3.0-8.7) years and boys were 60.2% of the study population. Children with SSNS made up 85.9% (n = 207) of the study cohort. Among those aged 0-5 years, 92.6%were SSNS compared with 69.2% in those aged 11-17 years at the time of diagnosis. In addition, the proportion of children with SSNS increased from 73.8% between year 2010 and 2012 to 88.4% afterwards. Also, children with SSNS had lower serum creatinine (0.44 vs 0.70; p<0.001) and higher estimated glomerular filtration rate (101 vs 74.3 ml/min/1.73 m2; p = 0.008) at the time of diagnosis than those with steroid resistant nephrotic syndrome (SRNS). CONCLUSION Among Black children in Lagos, the proportion with SSNS is comparable to proportions described in children of Asian and European descent. Furthermore, children with SSNS had lower serum creatinine and higher glomerular filtration rate than those with SRNS.
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Affiliation(s)
- Christopher I. Esezobor
- Department of Paediatrics, Faculty of Clinical Sciences, College of Medicine University of Lagos, Idi-Araba, Lagos, Nigeria
- Department of Paediatrics, Lagos University Teaching Hospital, Idi-Araba, Lagos, Nigeria
- * E-mail:
| | - Adaobi U. Solarin
- Department of Paediatrics, Faculty of Clinical Sciences, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria
- Department of Paediatrics, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
| | - Rasheed Gbadegesin
- Division of Nephrology, Departments of Pediatrics and Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
- Duke Molecular Physiology Institute, Duke University Medical Center, Durham, North Carolina, United States of America
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