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Follow-Up After Treatment
Source: Rectal Cancer Treatment (PDQ®)–Health Professional Version, National Cancer Institute.
Source updated: February 12, 2025 · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.
The primary goals of postoperative surveillance programs for rectal cancer are to:[39]
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Assess the efficacy of initial therapy.
Detect new or metachronous malignancies.
Detect potentially curable recurrent or metastatic cancers.
Routine, periodic studies following treatment for rectal cancer may lead to earlier identification and management of recurrent disease.[39-43] A statistically significant survival benefit has been demonstrated for more intensive follow-up protocols in two clinical trials. A meta-analysis that combined these two trials with four others reported a statistically significant improvement in survival for patients who were intensively followed.[39,44,45]
Guidelines for surveillance after initial treatment with curative intent for colorectal cancer vary between leading U.S. and European oncology societies, and optimal surveillance strategies remain uncertain.[46,47] Large, well-designed, prospective, multi-institutional, randomized studies are required to establish an evidence-based consensus for follow-up evaluation.
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Preserved source evidence · Independent clinical review pending · Not medical advice