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Surgical resection for second primary colorectal cancer: a population-based study
Ting Li1, Zhenyang Liu1, Fei Bai2
1Department of Gastroenterology and Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.
Frontiers in Medicine
|July 10, 2023
Summary
For patients with second primary colorectal cancer (CRC), surgical resection significantly improves survival. Segmental resection is superior to radical resection, offering better outcomes and fewer complications.
Area of Science:
- Oncology
- Surgical Oncology
- Cancer Epidemiology
Background:
- Second primary colorectal cancer (CRC) presents unique treatment challenges due to prior cancer history and limited evidence.
- Identifying optimal surgical strategies for second primary CRC is crucial for improving patient outcomes.
Purpose of the Study:
- To determine the most effective surgical resection method for second primary colorectal cancer (CRC) in patients with a history of prior cancer.
Main Methods:
- A retrospective cohort study analyzed data from 38,669 patients with second primary stage 0-III CRC (2000-2017) from the Surveillance, Epidemiology, and End Results database.
- Evaluated the prevalence of surgical resection and compared overall survival (OS) and disease-specific survival (DSS) between different surgical interventions.
Main Results:
- Surgical resection was performed in 93.2% of cases and significantly improved OS and DSS compared to no surgery.
- Segmental resection (39.2%) outperformed radical colectomy/proctectomy (54.0%) in terms of OS and DSS.
- Segmental resection was associated with reduced mortality from postoperative non-cancer comorbidities.
Conclusions:
- Surgical resection is oncologically superior for second primary CRC.
- Segmental resection provides a better prognosis and fewer non-cancer complications than radical resection.
- Surgical intervention for second primary CRC is recommended when feasible.
