Journal
INTERNATIONAL JOURNAL OF COLORECTAL DISEASE
Volume 38, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1007/s00384-023-04448-z
Keywords
Colorectal cancer; Endoscopic gastrointestinal surgery; Recurrence; Prognosis
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This study examined the effects of endoscopic resection (ER) performed prior to surgery on long-term survival in patients with T1 colorectal cancer. The results showed that ER before surgery did not affect the long-term outcomes of T1 colorectal cancer or significantly increase medical costs.
PurposeEndoscopic resection (ER) is a reliable treatment for early colorectal cancer without lymph node metastasis. We aimed to examine the effects of ER performed prior to T1 colorectal cancer (T1 CRC) surgery by comparing long-term survival after radical surgery with prior ER to that after radical surgery alone.MethodsThis retrospective study included patients who underwent surgical resection of T1 CRC at the National Cancer Center, Korea, between 2003 and 2017. All eligible patients (n = 543) were divided into primary and secondary surgery groups. To ensure similar characteristics between the groups, 1:1 propensity score matching was used. Baseline characteristics, gross and histological features, along with postoperative recurrence-free survival (RFS) between the two groups were compared. Cox proportional hazard model was used to identify the risk factors affecting recurrence after surgery. Cost analysis was performed to examine the cost-effectiveness of ER and radical surgeries.ResultsNo significant differences were observed in 5-year RFS between the two groups in matched data (96.9% vs. 95.5%, p = 0.596) and in the unadjusted model (97.2% vs. 96.8%, p = 0.930). This difference was also similar in subgroup analyses based on node status and high-risk histologic features. ER before surgery did not increase the medical costs of radical surgery.ConclusionER prior to radical surgery did not affect the long-term oncologic outcomes of T1 CRC or significantly increased the medical costs. Attempting ER first for suspected T1 CRC would be a good strategy to avoid unnecessary surgery without concerns of worsening cancer-related prognosis.
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