Brachytherapy tubes and free tissue transfer after soft tissue sarcoma resection

Area of Science:

• Oncology
• Surgical Oncology
• Radiation Oncology

Background:

• Post-resection irradiation is standard for soft tissue sarcomas to reduce recurrence.
• Brachytherapy offers advantages over external beam irradiation by sparing normal tissues and allowing immediate postoperative irradiation.
• Concerns exist regarding flap survival due to potential vascular complications following anastomosis and irradiation.

Purpose of the Study:

• To evaluate the survival of free tissue transfer when combined with brachytherapy after soft tissue sarcoma resection.
• To assess the safety and efficacy of this combined approach in a retrospective study.

Main Methods:

• Retrospective analysis of 36 patients undergoing wide resection of extremity soft tissue sarcomas.
• Free flap reconstruction followed by brachytherapy administered 5 days post-surgery.
• Follow-up averaged 54 months to assess outcomes and complications.

Main Results:

• Low complication rates were observed: 3 major and 4 minor complications.
• Major complications included two anastomosis revisions before radiotherapy and one secondary flap for deep infection.
• Brachytherapy at the microvascular anastomosis site in the immediate postoperative period was found to be safe.

Conclusions:

• Free tissue transfer combined with brachytherapy is a safe and viable option for soft tissue sarcoma management.
• This combined approach demonstrates acceptable flap survival rates and manageable complication profiles.
• The study supports the safety of performing brachytherapy at the microvascular anastomosis site postoperatively.