Diseases of the colon and rectum · 2019
Local Excision Versus Radical Resection for 1- to 2-cm Neuroendocrine Tumors of the Rectum: A National Cancer Database Analysis.
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Fields Adam C, Saadat Lily V, Scully Rebecca E, Davids Jennifer S, Goldberg Joel E, Bleday Ronald, Melnitchouk Nelya
Аннотация
BACKGROUND: The optimal surgical management for 1- to 2-cm, nonmetastatic rectal neuroendocrine tumors remains unknown.
OBJECTIVE: We sought to determine overall survival and operative outcomes in patients who underwent local excision versus radical resection of rectal neuroendocrine tumors.
DESIGN: The National Cancer Database (2004-2013) was queried to identify patients with nonmetastatic rectal neuroendocrine tumors who underwent local excision or radical resection.
SETTING: The study included national data.
PATIENTS: There were 274 patients in the local excision group and 47 patients in the radical resection group.
MAIN OUTCOME MEASURES: The primary outcome was overall survival. Secondary outcomes included 30-day mortality, hospital length of stay, and procedural outcomes.
RESULTS: There were no differences in demographics between the 2 groups. Patients who underwent radical resection had slightly larger tumors with higher stage and grade. Patients undergoing local excision had higher rates of positive margins (8.23% vs 0%; p = 0.04). There were no deaths within 30 days in either group, but patients who had radical resection had longer median hospital length of stay (0 vs 3 d; p < 0.01). After adjusting with a Cox proportional hazards model, no difference was seen in survival between the 2 patient groups (HR = 2.39 (95% CI, 0.85-6.70); p = 0.10).
LIMITATIONS: There are several limitations, which include that this work is a retrospective review; the data set does not include variables such as depth of tumor invasion, which may influence surgical treatment or local recurrence rates; and patients were not randomly assigned to treatment groups.
CONCLUSIONS: There is no survival benefit to radical resection of 1- to 2-cm, nonmetastatic rectal neuroendocrine tumors. This suggests that local excision may be a feasible and less morbid option for intermediate-sized rectal neuroendocrine tumors. See Video Abstract at http://links.lww.com/DCR/A744.
OBJECTIVE: We sought to determine overall survival and operative outcomes in patients who underwent local excision versus radical resection of rectal neuroendocrine tumors.
DESIGN: The National Cancer Database (2004-2013) was queried to identify patients with nonmetastatic rectal neuroendocrine tumors who underwent local excision or radical resection.
SETTING: The study included national data.
PATIENTS: There were 274 patients in the local excision group and 47 patients in the radical resection group.
MAIN OUTCOME MEASURES: The primary outcome was overall survival. Secondary outcomes included 30-day mortality, hospital length of stay, and procedural outcomes.
RESULTS: There were no differences in demographics between the 2 groups. Patients who underwent radical resection had slightly larger tumors with higher stage and grade. Patients undergoing local excision had higher rates of positive margins (8.23% vs 0%; p = 0.04). There were no deaths within 30 days in either group, but patients who had radical resection had longer median hospital length of stay (0 vs 3 d; p < 0.01). After adjusting with a Cox proportional hazards model, no difference was seen in survival between the 2 patient groups (HR = 2.39 (95% CI, 0.85-6.70); p = 0.10).
LIMITATIONS: There are several limitations, which include that this work is a retrospective review; the data set does not include variables such as depth of tumor invasion, which may influence surgical treatment or local recurrence rates; and patients were not randomly assigned to treatment groups.
CONCLUSIONS: There is no survival benefit to radical resection of 1- to 2-cm, nonmetastatic rectal neuroendocrine tumors. This suggests that local excision may be a feasible and less morbid option for intermediate-sized rectal neuroendocrine tumors. See Video Abstract at http://links.lww.com/DCR/A744.