Abstract
Background: In pediatric patients, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection has been mostly associated with mild symptoms. However, as in adults, renal involvement has been reported in children and adolescents with Coronavirus Disease 2019 (COVID-19).
Objective: This review aimed to report data about renal involvement in pediatric COVID-19 patients. The focuses were on the pathophysiology of acute kidney injury in Pediatric Inflammatory Multisystem Syndrome Temporally Associated (PIMS-TS) with SARS-CoV-2 and the possible impact of SARS-CoV-2 infection upon kidney function, as well as data concerning patients with previous kidney diseases, including Nephrotic Syndrome and Chronic Renal Disease. The implications for COVID-19 outcomes in pediatric patients were also discussed.
Methods: This integrative review searched for articles on renal involvement in pediatric COVID-19 patients. The databases evaluated were PubMed and Scopus.
Results: The emergence of PIMS-TS with SARS-CoV-2 has shown that pediatric patients are at risk of severe COVID-19, with multi-organ involvement and dysfunction. In addition to intense inflammation, several systems are affected in this syndrome, collectively creating a combination of factors that results in acute kidney injury. Several studies have proposed that kidney cells, including the podocytes, might be at risk of direct infection by SARS-CoV-2, as high levels of ACE2, the virus receptor, are expressed on the membrane of such cells. Some cases of glomerular diseases triggered by SARS-CoV-2 infection and relapses of previous renal diseases have been reported.
Conclusion: Further studies are necessary to establish risk factors for renal involvement in pediatric COVID-19 and to predict disease outcomes.
Keywords: COVID-19, SARS-CoV-2, pediatrics, children, kidney, acute kidney injury, nephrotic syndrome, chronic kidneydisease.
Graphical Abstract
[http://dx.doi.org/10.1016/S2665-9913(20)30212-5] [PMID: 32838308]
[http://dx.doi.org/10.1001/jamapediatrics.2020.1467] [PMID: 32320004]
[http://dx.doi.org/10.1016/S2352-4642(20)30177-2] [PMID: 32593339]
[http://dx.doi.org/10.1038/s41591-020-0968-3] [PMID: 32651579]
[http://dx.doi.org/10.1016/j.kint.2020.03.001] [PMID: 32204907]
[http://dx.doi.org/10.1016/j.kint.2020.03.005] [PMID: 32247631]
[http://dx.doi.org/10.1016/j.kint.2020.05.006] [PMID: 32416116]
[http://dx.doi.org/10.1016/j.eclinm.2020.100527] [PMID: 32923992]
[http://dx.doi.org/10.1001/jama.2020.10374] [PMID: 32511676]
[http://dx.doi.org/10.1016/S0140-6736(20)31094-1] [PMID: 32386565]
[http://dx.doi.org/10.1016/S0140-6736(20)31103-X] [PMID: 32410760]
[http://dx.doi.org/10.1093/cid/ciaa1042] [PMID: 32710613]
[http://dx.doi.org/10.1056/NEJMoa2021680] [PMID: 32598831]
[http://dx.doi.org/10.1016/S2352-4642(20)30178-4] [PMID: 32553126]
[http://dx.doi.org/10.1016/j.jpeds.2020.07.039] [PMID: 32681989]
[http://dx.doi.org/10.1097/CCM.0000000000004662] [PMID: 33044282]
[http://dx.doi.org/10.1136/bmj.m2094] [PMID: 32493739]
[http://dx.doi.org/10.1164/rccm.201211-1983OC] [PMID: 23348975]
[http://dx.doi.org/10.1016/S0140-6736(57)91069-3] [PMID: 13407077]
[http://dx.doi.org/10.1016/S0140-6736(19)32563-2] [PMID: 31777389]
[http://dx.doi.org/10.1172/JCI45161] [PMID: 22045571]
[http://dx.doi.org/10.1056/NEJMc2011400] [PMID: 32402155]
[http://dx.doi.org/10.1159/000512211] [PMID: 33352576]
[PMID: 32663827]
[http://dx.doi.org/10.1016/j.jped.2020.08.007] [PMID: 32980319]
[http://dx.doi.org/10.1007/s00134-020-06026-1] [PMID: 32236644]
[http://dx.doi.org/10.3389/fcell.2020.559841] [PMID: 33042994]
[http://dx.doi.org/10.1007/s00467-020-04759-1] [PMID: 32995920]
[http://dx.doi.org/10.2174/1389450121666201020154033] [PMID: 33081670]
[http://dx.doi.org/10.1016/j.kint.2020.04.003] [PMID: 32327202]
[http://dx.doi.org/10.1007/s00134-019-05869-7] [PMID: 31820034]
[http://dx.doi.org/10.1038/s41581-020-0284-7] [PMID: 32273593]
[http://dx.doi.org/10.1016/S0140-6736(20)30920-X] [PMID: 32311318]
[http://dx.doi.org/10.1016/j.kint.2019.05.026] [PMID: 31443997]
[http://dx.doi.org/10.1056/NEJMc2005073] [PMID: 32187458]
[http://dx.doi.org/10.1001/jama.2020.10369] [PMID: 32511692]
[http://dx.doi.org/10.1038/pr.2016.81] [PMID: 27064240]
[http://dx.doi.org/10.1007/s00467-015-3180-9] [PMID: 26260379]
[http://dx.doi.org/10.1016/j.jmii.2013.06.005] [PMID: 23927822]
[http://dx.doi.org/10.15585/mmwr.mm6932e2] [PMID: 32790663]
[http://dx.doi.org/10.1002/jmv.26224] [PMID: 32584487]
[http://dx.doi.org/10.1053/j.gastro.2020.05.079] [PMID: 32505742]
[http://dx.doi.org/10.1186/s13613-020-00690-8] [PMID: 32488505]
[http://dx.doi.org/10.1172/jci.insight.123158] [PMID: 30830861]
[http://dx.doi.org/10.1016/j.jpeds.2020.06.044] [PMID: 32553873]
[http://dx.doi.org/10.1017/S095026882000196X] [PMID: 32854812]
[http://dx.doi.org/10.1086/428291] [PMID: 15655771]
[http://dx.doi.org/10.1038/s41584-020-0426-0] [PMID: 32457494]
[http://dx.doi.org/10.1016/S0140-6736(20)31129-6] [PMID: 32410759]
[http://dx.doi.org/10.1155/2013/831834] [PMID: 24288547]
[http://dx.doi.org/10.3389/fimmu.2019.01156] [PMID: 31263461]
[http://dx.doi.org/10.1136/bmj.290.6480.1456] [PMID: 3922532]
[http://dx.doi.org/10.1016/j.cell.2020.09.016] [PMID: 32966765]
[http://dx.doi.org/10.1620/tjem.248.63] [PMID: 31178527]
[http://dx.doi.org/10.2215/CJN.11470720] [PMID: 33144276]
[http://dx.doi.org/10.1016/j.jped.2016.08.006] [PMID: 28126563]
[http://dx.doi.org/10.1016/S0140-6736(20)31041-2] [PMID: 32423587]
[http://dx.doi.org/10.1186/s12882-021-02389-9] [PMID: 34059010]
[http://dx.doi.org/10.1007/s00467-020-04715-z] [PMID: 32844290]
[http://dx.doi.org/10.3389/fped.2020.00471] [PMID: 32974243]
[http://dx.doi.org/10.1007/s00467-020-04724-y] [PMID: 32852576]
[http://dx.doi.org/10.1007/s00467-020-04782-2] [PMID: 32990810]
[http://dx.doi.org/10.1542/pir.36-3-117] [PMID: 25733763]
[http://dx.doi.org/10.1007/s00467-020-04814-x] [PMID: 33123772]
[http://dx.doi.org/10.1038/s41390-020-0881-y] [PMID: 32244248]
[http://dx.doi.org/10.1007/s40121-020-00338-x] [PMID: 32936438]
[http://dx.doi.org/10.1007/s00467-020-04597-1] [PMID: 32435879]
[http://dx.doi.org/10.1016/S2352-4642(20)30145-0] [PMID: 32411815]
[http://dx.doi.org/10.2215/CJN.06400420] [PMID: 32718953]
[http://dx.doi.org/10.1056/NEJMp2002125] [PMID: 32074416]
[http://dx.doi.org/10.1136/archdischild-2020-319903] [PMID: 32709685]
[http://dx.doi.org/10.1136/archdischild-2020-319474] [PMID: 32371442]
[http://dx.doi.org/10.2215/CJN.13120820] [PMID: 33318026]
[http://dx.doi.org/10.1007/s00467-020-04555-x] [PMID: 32333285]