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Pelvic local recurrence from colorectal cancer: surgical challenge with changing preconditions.
Colorectal Disease 2018 May
AIM: Although the rate of local recurrence (LR) after colorectal cancer surgery has decreased, it still poses major surgical and oncological challenges. The aims of this study, based on an audit from a tertiary referral centre, was to evaluate determinants associated with outcomes after surgery for pelvic LR and how these have changed over time.
METHOD: Retrospective analysis of all resections for pelvic LR of colorectal cancer performed at the Karolinska University Hospital from January 2003 until August 2009 (period 1) and from September 2009 until November 2013 (period 2) .
RESULTS: Ninety-five patients with pelvic LR were operated on with a curative intent. An R0 resection was achieved in 77% and an R1 resection in 23%. Lateral compartments were invaded in 48% and this proportion increased in resections performed in period 2 (37% vs 60%, P = 0.05). R1 resections were associated with a higher risk of local re-recurrence than R0 resections (64% vs 16%; OR = 8.90, 95% CI: 2.71-29.78). Lateral recurrences were associated with a lower R0-resection rate than nonlateral recurrences (63% vs 90%; OR = 0.20, 95% CI: 0.05-0.64) and a higher risk of treatment failure in terms of local re-recurrence or distant metastases, or death, as first event (hazard ratio [HR] = 1.75, 95% CI: 1.06-2.75). However, in a multivariate analysis only R1 resections remained a significant prognostic factor for treatment failure (HR = 2.37, 95% CI: 1.32-4.27).
CONCLUSION: The proportion of lateral pelvic recurrences has increased over time. In comparison with non-lateral LRs, lateral LRs are more difficult to resect radically and are associated with worse overall and disease-free survival. However, with radical surgery many patients with pelvic locally recurrent colorectal cancer may be offered curative treatment.
METHOD: Retrospective analysis of all resections for pelvic LR of colorectal cancer performed at the Karolinska University Hospital from January 2003 until August 2009 (period 1) and from September 2009 until November 2013 (period 2) .
RESULTS: Ninety-five patients with pelvic LR were operated on with a curative intent. An R0 resection was achieved in 77% and an R1 resection in 23%. Lateral compartments were invaded in 48% and this proportion increased in resections performed in period 2 (37% vs 60%, P = 0.05). R1 resections were associated with a higher risk of local re-recurrence than R0 resections (64% vs 16%; OR = 8.90, 95% CI: 2.71-29.78). Lateral recurrences were associated with a lower R0-resection rate than nonlateral recurrences (63% vs 90%; OR = 0.20, 95% CI: 0.05-0.64) and a higher risk of treatment failure in terms of local re-recurrence or distant metastases, or death, as first event (hazard ratio [HR] = 1.75, 95% CI: 1.06-2.75). However, in a multivariate analysis only R1 resections remained a significant prognostic factor for treatment failure (HR = 2.37, 95% CI: 1.32-4.27).
CONCLUSION: The proportion of lateral pelvic recurrences has increased over time. In comparison with non-lateral LRs, lateral LRs are more difficult to resect radically and are associated with worse overall and disease-free survival. However, with radical surgery many patients with pelvic locally recurrent colorectal cancer may be offered curative treatment.
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