Infectious mononucleosis and renal failure

Ozgurhan G, et al. Acute kidney injury complicated Epstein-Barr virus infection in infancy. Case Rep Pediatr. 2015; 848959.

Infectious mononucleosis is an acute lymphoproliferative disorder caused by the Epstein-Barr virus (EBV) and seen most commonly in children and young adults. Clinical presentation of the disease is characterized by fever, tonsillopharyngitis, lymphadenopathy, and hepatosplenomegaly, whereas serological findings of this benign disorder include positive heterophilic antibody formation (transient increase in heterophilic antibodies) and prominence of hematological lymphocytosis of more than 10% of atypical lymphocytes. An EBV infection is usually asymptomatic in childhood, but acute kidney injury can be a rare complication during its course. Most cases recover from the disease completely. Early recognition of EBV infection and estimation of its complication are important for its prognosis. In light of previous literature, we discuss the case evaluated as an EBV infection complicated by acute kidney injury in early childhood and results of tubulointerstitial nephritis shown on a renal biopsy that was later diagnosed as an EBV infection by serological examination.

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Tsai JD, et al. Epstein-Barr virus-associated acute renal failure: diagnosis, treatment, and follow-up. Pediatr Nephrol. 2003 Jul;18(7):667-74.

We retrospectively reviewed our experience of Epstein-Barr virus (EBV)-associated acute renal failure. Of 165 previously healthy children hospitalized with serologically proven primary EBV infection, 8 had acute renal failure, of whom 5 (group A) did not have virus-associated hemophagocytic syndrome (VAHS), while 3 (group B) did have VAHS. All had complications in four or more organ systems. Two patients in group A had renal biopsies showing acute tubulointerstitial nephritis, and the clinical and laboratory findings in the other 3 group A patients were consistent with acute tubulointerstitial nephritis. Acyclovir was used in 1 patient, but she died of hepatic failure and pulmonary hemorrhage. The other 4 spontaneously recovered renal function after supportive care, including hemodialysis in 1 patient. Our experience does not support the routine use of corticosteroids or antiviral agents in these patients. Children in group B had a relatively normal urinalysis. Renal biopsies were not performed, but their presentations were compatible with acute tubular necrosis. We conclude that EBV should be considered as a possible etiological agent in all children presenting with acute renal failure of unknown cause. The diagnosis depends on a high index of suspicion and careful serological evaluation in atypical cases.

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Lei PS, Lowichik A, Allen W, Mauch TJ. Acute renal failure: unusual complication of Epstein-Barr virus-induced infectious mononucleosis. Clin Infect Dis. 2000 Dec; 31(6): 1519-24.

A 17-year-old boy with juvenile rheumatoid arthritis presented with jaundice, confusion, hemolytic anemia, thrombocytopenia, and acute renal failure secondary to titer-confirmed acute Epstein-Barr virus (EBV). Renal biopsy specimen revealed interstitial nephritis with an inflammatory infiltrate composed of cytotoxic/suppressor T cells, and interstitial mononuclear cell nuclei expressed EBV encoded RNA-1 (EBER-1) mRNA. Methylprednisolone treatment resulted in rapid improvement.

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Mayer HB, et al. Epstein-Barr virus-induced infectious mononucleosis complicated by acute renal failure: case report and review. Clin Infect Dis. 1996 Jun;22(6):1009-18.

Infectious mononucleosis, most commonly caused by Epstein-Barr virus (EBV), is generally a benign, self-limited illness. Occasionally, however, more severe complications may arise such as acute renal insufficiency. While subclinical renal involvement appears to be relatively common in patients with infectious mononucleosis, patients with significant renal parenchymal dysfunction have rarely been described in the English-language literature. In this report, we review 27 previous cases ad present a case of oliguric renal failure complicating heterophil-positive infectious mononucleosis. The patient required hemodialysis but recovered promptly with treatment with the combination of corticosteroids plus acyclovir. Renal biopsy revealed interstitial nephritis, and immunoperoxidase studies demonstrated a predominance of suppressor/cytotoxic T cells, which has been described in only one previous case report. In situ hybridization done on renal biopsy tissue failed to reveal evidence of EBV-encoded RNA-1. Acute renal failure in infectious mononucleosis is rare, often self-limited, and usually caused by interstitial nephritis that is likely the result of immunopathologic injury precipitated by EBV infection.

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More PubMed results on IM and renal failure.

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