title: Incidence of renal insufficiency in cancer patients and evaluation of information available on the use of anticancer drugs in renally impaired patients.
abstract: BACKGROUND
  Chronic renal failure is a common pathology. The high frequency of this disease in the general US population has been assessed in the NHANES III study. However, the frequency of chronic renal insufficiency among cancer patients remains unclear.
  
  
  METHODS
  316 cancer patients were in a one-month study, included regardless of their pathology, treatment (antineoplastic drugs used or programmed to be used, pretreated, or no treatment), or any other criteria.
  
  
  RESULTS
  Among the patients, 287 (90.8%) had normal serum creatinine levels (<110 micromol/l), i.e. a frequency of 9.2% for renal insufficiency in our population. However, when renal function was estimated by calculating creatinine clearance using the Cockcroft and Gault formula, 33% of the patients had an estimated GFR of less than 80 ml/min. Among these, 28% had a creatinine clearance ranging form 80 to 50 ml/min and 5% had a creatinine clearance of less than 50 ml/min. Renal insufficiency is frequent in cancer patients since almost one third of the patients present renal insufficiency. Furthermore, among patients with normal serum creatinine levels, one patient out of five has asymptomatic renal insufficiency.
  
  
  CONCLUSIONS
  Therefore, it is of major importance that renal function be assessed by calculation of creatinine clearance using the Cockcroft and Gault formula in every patient, even when serum creatinine is within the normal range.
authors.affiliation: Department of Nephrology, Pitié-Salpetricre Hospital, Paris, France. vincent.launay-vacher@psl.ap-hop-paris.fr
authors.forename: Vincent
authors.initials: V
authors.lastname: Launay-Vacher
authors.forename: Hassane
authors.initials: H
authors.lastname: Izzedine
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Rey
authors.forename: Olivier
authors.initials: O
authors.lastname: Rixe
authors.forename: Sophie
authors.initials: S
authors.lastname: Chapalain
authors.forename: Souraya
authors.initials: S
authors.lastname: Nourdine
authors.forename: Angelo
authors.initials: A
authors.lastname: Paci
authors.forename: Philippe
authors.initials: P
authors.lastname: Bourget
authors.forename: Gilbert
authors.initials: G
authors.lastname: Deray
mesh_terms: D000368:Aged; D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000494:pharmacology; D003404:Creatinine / Q000097:blood; D005260:Female; D005919:Glomerular Filtration Rate; D006801:Humans; D015994:Incidence; D007668:Kidney / Q000473:pathology; D007676:Kidney Failure, Chronic / Q000150:complications* / Q000209:etiology; D007677:Kidney Function Tests; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications* / Q000188:drug therapy
chemical_list: D000970:Antineoplastic Agents; D003404:Creatinine