title: [Systematic conservative surgery for kidney cancer smaller than 4 cm: multicenter study].
abstract: OBJECTIVE
  To evaluate tumour control and morbidity of systematic conservative surgery for patients with a renal cancer < or = 4 cm.
  
  
  METHODS
  A retrospective multicentre study was performed in 73 patients undergoing systematic conservative surgery for renal cancer < or = 4 cm. The mean age of the patients was 55.8 years (range: 19-82). The mean diameter of the tumour was 2.8 cm +/- 0.9. Tumour stage was pT1 in 97% of cases and pT3a in 3% of cases. The mean follow-up was 46.2 months (range: 12-138).
  
  
  RESULTS
  The postoperative morbidity was 11%, including urinary fistulas in 5 cases and haemorrhage in 3 cases. No patient has developed local recurrence. One patient died from metastases. The 5-year recurrence-free survival was 97.4%.
  
  
  CONCLUSIONS
  Systematic partial nephrectomy has a low morbidity in patients with a renal cancer less than 4 cm. It ensures satisfactory medium-term tumour control. However, only long-term follow-up can establish the place of systematic partial nephrectomy in the treatment of renal cancer.
authors.affiliation: Service de Chirurgie Urologique, Hôpital Ambroise Paré, 9, avenue Charles de Gaulle, 92100 Boulogne. eric.fontaine@apt.ap-hop-paris.fr
authors.forename: E
authors.initials: E
authors.lastname: Fontaine
authors.forename: Y
authors.initials: Y
authors.lastname: Chretien
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged
vernacular_title: Chirurgie conservatrice de principe pour cancer du rein inférieur à 4 cm: étude multicentrique.