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  • Title: Local excision of rectal cancer followed by radical surgery because of poor prognostic features does not compromise the long term oncologic outcome.
    Author: Gagliardi G, Newton TR, Bailey HR.
    Journal: Colorectal Dis; 2013 Nov; 15(11):e659-64. PubMed ID: 24033889.
    Abstract:
    AIM: The outcome of patients undergoing full-thickness local excision (LE) of rectal cancers may be compromised if poor prognostic features are found in the LE specimen. Our aim was to evaluate the long-term results of radical surgery performed after LE because poor prognostic factors are identified. METHOD: Patients with biopsy-proven rectal cancer who had undergone full-thickness LE followed by radical surgery because of a positive margin, T stage ≥3, lymphovascular invasion, poor differentiation or mucinous histology were identified from a prospective database. Their records were retrospectively reviewed and follow up was updated. RESULTS: Between 1995 and 2003, 17 patients underwent LE followed by radical surgery because of poor prognostic features. Combined chemotherapy and radiotherapy was given to 11 (65%) patients before radical surgery. Patients underwent radical surgery after a median of 14 (range: 0-40) weeks from LE. Nine underwent a low anterior resection and eight an abdominoperineal resection. At the time of radical surgery, residual disease was found in six (35%) patients (in lymph nodes in three; intramural in two; and both lymph nodes and intramural in one). Four of the patients with residual disease had undergone neoadjuvant therapy before radical surgery. The mean follow up was 110 (95% CI: 92-129) months. Recurrence-free survival at 10 years was 88%. There was no case of local recurrence, and two patients died of metastatic disease. CONCLUSION: In this series patients who underwent early radical surgery because of poor prognostic features found at LE had good overall and cancer-specific long-term survival. Even after neoadjuvant therapy, more than a third of patients had residual disease at the time of radical surgery. We therefore recommend radical surgery with neoadjuvant therapy when poor prognostic features are found at LE.
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