Postoperative irradiation following immediate breast reconstruction using a temporary tissue expander

Area of Science:

• Oncology
• Plastic Surgery
• Radiation Oncology

Background:

• Modified radical mastectomy is a common breast cancer treatment.
• Immediate breast reconstruction aims to improve patient outcomes and body image.
• Postoperative irradiation is often necessary after mastectomy to reduce recurrence risk.

Purpose of the Study:

• To assess the feasibility of immediate breast reconstruction using temporary tissue expanders following mastectomy.
• To evaluate the impact of saline-filled tissue expanders on the delivery of postoperative irradiation.
• To determine the cosmetic outcomes and complication rates associated with this combined approach.

Main Methods:

• Ten patients underwent modified radical mastectomy with immediate reconstruction using temporary tissue expanders.
• Dosimetric measurements using thermoluminescent dosimeters assessed radiation attenuation by the expander.
• Cosmetic outcomes were evaluated over a 2-year follow-up period.

Main Results:

• Saline-filled expanders attenuated photon beams 3% less than tissue-equivalent material, a negligible variation.
• Six patients completed reconstruction and irradiation without complications, with good to fair cosmetic results.
• Three patients experienced complications leading to the loss of the reconstructed breast.

Conclusions:

• Immediate breast reconstruction with temporary tissue expanders is a viable option following mastectomy and adjuvant irradiation.
• The impact of tissue expanders on radiation dosimetry is minimal and does not necessitate treatment adjustments.
• Careful patient selection and close multidisciplinary follow-up are crucial for successful outcomes.