title: A retrospective comparative analysis of the effect of Y90-radioembolization on the survival of patients with unresectable hepatocellular carcinoma.
abstract: OBJECTIVE
  to determine the impact of Y90-Radioembolization on survival when used as a first-line treatment for unresectable HCC.
  
  
  METHODS
  We retrospectively analyzed 35 consecutive patients with unresectable HCC who received 90Y-labeled resin microspheres as first-line treatment and compared their overall survival from the time of diagnosis with that of a cohort of 43 patients with unresectable HCC that were potential candidates for Y90-Radioembolization but had received conventional care due to unavailability or technical contraindications. Patients in both groups had a similar liver function and tumor burden.
  
  
  RESULTS
  Median survival from diagnosis was significantly higher in the radioembolization group compared with controls (16 vs. 8 months; p < 0.05), even after adjusting for cirrhosis, multinodular disease, bilobar involvement or vascular invasion. In a multivariate analysis, treatment by radioembolization was the only prognostic factor independently associated with improved survival. In an intention-to-treat analysis, patients evaluated for radioembolization (finally treated or not) survived longer than controls (13 vs. 10 months; p < 0.05).
  
  
  CONCLUSIONS
  Y90-Radioembolization is likely to improve survival among patients with unresectable HCC compared with conventional treatment. Further prospective studies are needed to evaluate the potential of this new treatment modality in unresectable HCC.
authors.affiliation: Liver Unit, Clinica Universitaria, Pamplona, Spain.
authors.forename: Delia
authors.initials: D
authors.lastname: D'Avola
authors.forename: Mercedes
authors.initials: M
authors.lastname: Lñarrairaegui
authors.forename: Jose I
authors.initials: JI
authors.lastname: Bilbao
authors.forename: Antonio
authors.initials: A
authors.lastname: Martinez-Cuesta
authors.forename: Felix
authors.initials: F
authors.lastname: Alegre
authors.forename: Jose I
authors.initials: JI
authors.lastname: Herrero
authors.forename: Jorge
authors.initials: J
authors.lastname: Quiroga
authors.forename: Jesus
authors.initials: J
authors.lastname: Prieto
authors.forename: Bruno
authors.initials: B
authors.lastname: Sangro
mesh_terms: D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000401:mortality / Q000628:therapy*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D012189:Retrospective Studies; D015021:Yttrium Radioisotopes / Q000627:therapeutic use*
chemical_list: D015021:Yttrium Radioisotopes