title: Outcomes of simultaneous and delayed resections of synchronous colorectal liver metastases.
abstract: BACKGROUND
  The optimal strategy for the treatment of synchronous colorectal liver metastases has not been established yet. In this study, we present the outcomes and survival rates of the patients who underwent simultaneous or delayed resections.
  
  
  METHODS
  We performed a retrospective analysis of liver resections in our institution between 1997 and 2006.
  
  
  RESULTS
  Among the 89 patients presenting with synchronous colorectal liver metastases, 28 underwent simultaneous and 61 underwent delayed resection. Age, sex and localization of the primary tumour were similar in the 2 groups. Duration of surgery and hospital stay were longer in the simultaneous resection group, and blood loss was also greater in this group. However, these factors did not influence the frequency of complications, which did not differ between the groups. When we included data from initial colectomy, these differences were either not significant or in favour of synchronous resection. In the delayed resection group, colon resection was performed in different hospitals. The 1-, 3- and 5-year survival rates were 78%, 70% and 45%, respectively, in the simultaneous and 88%, 55% and 38%, respectively, in the delayed resection groups.
  
  
  CONCLUSIONS
  In select patients, the risk of simultaneous resection of synchronous colorectal liver metastases is comparable to delayed resection, and increases in blood loss and operating time associated with simultaneous resections do not have a negative influence on long-term outcome. Positive outcomes of simultaneous liver resections in our study could be a result of good patient selection or experience with oncological liver surgery.
authors.affiliation: Departament of Transplantology and General Surgery, CM UMK, Bydgoszcz, Poland. maciejslupski@wp.pl
authors.forename: Maciej
authors.initials: M
authors.lastname: Slupski
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Wlodarczyk
authors.forename: Milosz
authors.initials: M
authors.lastname: Jasinski
authors.forename: Marek
authors.initials: M
authors.lastname: Masztalerz
authors.forename: Jerzy
authors.initials: J
authors.lastname: Tujakowski
mesh_terms: D003082:Colectomy / Q000401:mortality; D015179:Colorectal Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D006498:Hepatectomy / Q000401:mortality; D006801:Humans; D008113:Liver Neoplasms / Q000556:secondary / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome