title: [Hyperuricemia in sickle cell disease in France].
abstract: OBJECTIVE
  Hyperuricemia has been reported to be a common feature of sickle cell disease occurring between 32 to 41% of the patients, in studies conducted during the 1970's. Since then, this notion has been rarely challenged. The objective of this study was to assess the prevalence of hyperuricemia and gout in adult patients with sickle cell disease in France.
  
  
  METHODS
  Between May 2007 and March 2009, serum and urinary urate concentration, creatininemia and hemogram were prospectively assessed in all consecutive sickle cell patients, followed in our sickle cell disease centre. All subjects were in a clinically steady state. Clinical acute gout history was also recorded.
  
  
  RESULTS
  Sixty-five patients (mean age 31±10.3 years) were investigated. Mean uric acid serum level was 281.6±74μmol/L. Hyperuricemia was evidenced in six patients only (9.2%) (95% IC: 3.5-19.0). None of the patient had a medical history of acute gout. Patients in the higher serum uric acid tertile concentration had higher serum creatinine level (62.3±17.1μmol/L vs 51.5±12.6μmol/L, P<0.01), lower fractional excretion of urate (4.5% vs 6.8%, P<0.03) and higher reticulocyte count (median 219500/mm(3) vs 144000/mm(3), P=0.08) compared to the other patients.
  
  
  CONCLUSIONS
  Hyperuricemia and gout are not a clinical problem in sickle cell disease in our country. Nevertheless, our findings indicate that kidney function has to be fully explored if serum uric acid level is elevated or significantly deteriorates during follow-up. Serum uric acid level could be an early marker of renal dysfunction in sickle cell disease patients.
authors: Hôpital européen Georges-Pompidou, université Paris-Descartes, Paris cedex 15, France. jean-benoit.arlet@egp.aphp.fr
authors: J-B
authors: JB
authors: Arlet
authors: J-A
authors: JA
authors: Ribeil
authors: G
authors: G
authors: Chatellier
authors: J
authors: J
authors: Pouchot
authors: M
authors: M
authors: de Montalembert
authors: D
authors: D
authors: Prié
authors: M
authors: M
authors: Courbebaisse
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000755:Anemia, Sickle Cell / Q000150:complications* / Q000503:physiopathology*; D005260:Female; D005602:France; D006073:Gout / Q000150:complications* / Q000453:epidemiology; D006801:Humans; D033461:Hyperuricemia / Q000150:complications* / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014527:Uric Acid / Q000097:blood*; D055815:Young Adult
chemical_list: D014527:Uric Acid