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Preoperative radiotherapy in operable rectal cancer
A Horn1, J F Halvorsen, O Dahl
1Department of Surgery, Haukeland Hospital, University of Bergen, Norway.
Diseases of the Colon and Rectum
|October 1, 1990
Summary
Preoperative radiotherapy improved survival and reduced local recurrence for rectal cancer patients undergoing low anterior resection. However, it did not benefit those treated with abdominoperineal resection.
Area of Science:
- Oncology
- Surgical Oncology
- Radiation Oncology
Background:
- Operable rectal cancer treatment involves surgery, with preoperative radiotherapy potentially improving outcomes.
- Two primary surgical procedures are abdominoperineal resection (APR) and low anterior resection (LAR).
Purpose of the Study:
- To evaluate the impact of preoperative radiotherapy on resectability and prognosis in operable rectal cancer patients.
- To compare treatment outcomes between APR and LAR following preoperative radiotherapy.
Main Methods:
- Patients with operable rectal cancer received preoperative radiotherapy (31.5 Gy in 3.5 weeks).
- Surgical outcomes were assessed after either APR or LAR.
- Five-year survival rates and local recurrence incidence were analyzed.
Main Results:
- Preoperative radiotherapy did not alter the choice between LAR (40%) and APR.
- LAR patients receiving radiotherapy showed significantly improved five-year survival and decreased local recurrence.
- APR patients receiving radiotherapy did not experience improved treatment results.
Conclusions:
- Preoperative radiotherapy is beneficial for rectal cancer patients undergoing LAR, enhancing survival and reducing recurrence.
- Radiotherapy offers no discernible advantage for patients treated with APR for operable rectal cancer.