title: Hemolytic uremic syndrome in families-an Argentinian experience.
abstract: Six hundred and thirty-one patients with hemolytic uremic syndrome (HUS) were treated from 1960 to 1992; 19 (3%) were familial cases, of which 9 were classified as concomitant (including twins), 6 as non-concomitant, and 4 as recurrent. In the recurrent group there were 15 HUS episodes, 10 being concomitant in 2 patients. Prodromal diarrhea was present only in concomitant and non-concomitant cases. Patients with recurrences were sisters from a single family. Concomitant and non-concomitant cases had clinical features, course, and age similar to typical endemoepidemic forms of HUS, in which an association with verocytotoxin-producing Escherichia coli has been reported. There may be a genetic determinant in concomitant cases; these occurred outside the season during which endemoepidemic forms are typically detected. In patients with recurrent disease a genetic factor which may lead to the development of the disease when triggered by viral infections is likely.
authors.affiliation: Nephrology Unit, Hospital General de Niños Pedro de Elizalde, Buenos Aires, Argentina.
authors.forename: L E
authors.initials: LE
authors.lastname: Voyer
authors.forename: R E
authors.initials: RE
authors.lastname: Wainsztein
authors.forename: B E
authors.initials: BE
authors.lastname: Quadri
authors.forename: S E
authors.initials: SE
authors.lastname: Corti
mesh_terms: D001118:Argentina; D002675:Child, Preschool; D004927:Escherichia coli Infections / Q000652:urine; D005260:Female; D006461:Hemolysis; D006801:Humans; D007223:Infant; D008297:Male; D012008:Recurrence; D006435:Renal Dialysis; D013577:Syndrome; D014511:Uremia / Q000235:genetics* / Q000473:pathology* / Q000652:urine