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Extending the limits of lung cancer resection
R W Aye1, T P Mate, H N Anderson
1Department of Surgery, Swedish Hospital Medical Center, Seattle, Washington.
American Journal of Surgery
|May 1, 1993
Summary
Thoracic brachytherapy effectively treated locally advanced lung cancer in patients with positive or suspicious margins after surgery. This technique achieved high local control rates and improved survival, offering a potential cure for previously inoperable cases.
Area of Science:
- Thoracic oncology
- Radiation oncology
- Surgical oncology
Background:
- Locally advanced bronchogenic carcinoma often presents unresectable disease or involves positive margins after resection, leading to local recurrence.
- Standard treatment for such cases is challenging due to invasion into vital structures and the risk of recurrence.
- Brachytherapy, a localized radiation technique, offers targeted tumoricidal doses with minimal toxicity to surrounding tissues.
Purpose of the Study:
- To evaluate the efficacy and safety of thoracic brachytherapy in patients with locally advanced bronchogenic carcinoma and positive or suspicious resection margins.
- To assess local control rates and survival outcomes in patients treated with postoperative brachytherapy.
Main Methods:
- Fifteen highly selected patients with histologically positive (n=8) or suspicious (n=7) margins after resection for locally advanced bronchogenic carcinoma were treated.
- One of two brachytherapy techniques was utilized for direct application of radioactive sources to the tumor bed.
- Patient outcomes were assessed with a mean follow-up of 38 months.
Main Results:
- Brachytherapy techniques were easily applied and not associated with treatment-related complications.
- Local control was achieved in 12 out of 14 evaluable patients (86%).
- At follow-up, 8 patients were alive, with 7 disease-free.
Conclusions:
- Postoperative thoracic brachytherapy is a safe and effective treatment for selected patients with locally advanced bronchogenic carcinoma and positive or suspicious margins.
- This approach demonstrates a high rate of local control and offers the potential for cure in patients with otherwise inoperable disease.
- Thoracic brachytherapy represents a valuable option for improving outcomes in challenging lung cancer cases.