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Sphincter preservation therapy for rectal cancer.
Candice Aitken1, Elizabeth Breen, Harvey J Mamon
1Department of Radiation Oncology, Brigham and Women's Hospital and the Dana-Farber Cancer Institute, Boston, MA 02115, USA.
Clinical Advances in Hematology & Oncology : H&O
|November 1, 2005
Summary
Sphincter preservation in rectal cancer is challenging, especially for distal tumors. Preoperative chemoradiotherapy and careful patient selection can improve outcomes and enable sphincter-saving local excision for selected patients.
Area of Science:
- Oncology
- Surgical Oncology
- Gastroenterology
Background:
- Rectal cancer poses challenges due to anatomical location and difficult pre-operative staging.
- Distal rectal tumors present a dilemma between tumor control and sphincter preservation, impacting survival and quality of life.
Purpose of the Study:
- To explore strategies for improving sphincter preservation rates in rectal cancer patients.
- To evaluate the role of preoperative chemoradiotherapy and local excision in managing distal rectal tumors.
Main Methods:
- Review of current treatment options including preoperative radiotherapy, chemotherapy, local excision, and low anterior resection.
- Emphasis on pretreatment evaluation using radiologic studies and pathologic predictors for lymph node involvement to select patients for local excision.
Main Results:
- Preoperative chemoradiotherapy can downstage tumors, potentially making patients candidates for sphincter preservation.
- Local excision, for properly selected patients, shows promise in achieving sphincter preservation.
Conclusions:
- Careful patient selection and pretreatment evaluation are crucial for successful local excision and sphincter preservation.
- Preoperative chemoradiotherapy is a viable option for patients not initially suitable for sphincter-saving surgery.