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Journal of the American Society of Nephrology ; 33:177, 2022.
Article in English | EMBASE | ID: covidwho-2125798


Introduction: Collapsing focal segmental glomerulosclerosis (cFSGS) refers to a distinct pattern of glomerulopathy characterized by a glomerular capillary collapse in a segmental global manner, podocyte proliferation, and tubulointerstitial injury. Viral infections like HIV, Parvovirus B19, and CMV seem to be prominent triggers for the development of a conventional histological pattern of FSGS. CMV-associated renal disease has been described only in transplant and immunocompromised patients. Case Description: Case 1 18-year-old female with history of asthma and HbSS disease presented with fever, nausea, vomiting, and neck pain Physical examination revealed a temperature of 102 F, icterus, negative meningeal signs, no rales, rhonchi or wheezing. Initial creatinine 0.2 mg/dL. COVID-19 PCR was negative but IgG antibodies positive. Patient developed non-oliguric AKI with fluid overload requiring hemodialysis. CMV IgM and CMV PCR were positive. She recieved antibiotic therapy and also ganciclovir. Biopsy revealed collapsing FSGS with acute tubular injury. A week after completion of ganciclovir therapy creatinine returned to baseline of 1.7 mg/dL. Case 2 40-year-old African American male with history of diabetes and asthma presented with fever, fatigue, epigastric pain and chest pain. Initial creatinine 1.2 mg/dl, hepatic function (AST 333 U/L, ALT 265 U/L, ALK 207 U/L), ferritin (13682 ng/ml), triglycerides (276 mg/dl) and proteinuria (urine protein /creatinine ratio: 2, urine albumin/creatinine:1016 mg/gm). Patient developed anuric renal failure which required hemodialysis. Biopsy revealed collapsing FSGS with diffuse podocyte effacement, moderate tubular atrophy, and interstitial fibrosis. CMV DNA antibodies were positive. Methylprednisolone and valganciclovir were started with patient creatinine trending down to 3.7 mg/dL. Three weeks following discharge, creatinine levels were 1.5 mg/dL with decreased proteinuria. Discussion(s): Collapsing FSGS in immunocompetent patients is uncommon. Reports mention benefits of ganciclovir and steroid therapy for CMV infection in immunocompromised patients. CMV infection should be considered in patients with systemic inflammatory disease and severe renal failure, as early treatment with steroids and antivirals helps preserve renal function.