Breast Reconstruction After Mastectomy

This prospective single-arm pilot study will evaluate the application of meshed 5 × 7 cm Restrata® sheets to the abdominal wall donor site following deep inferior epigastric perforator (DIEP) or abdominal wall autologous free tissue transfer in 20 eligible patients.

The purpose of this research study is to understand patient experiences and the feasibility of using a breast heat preconditioning device (Plexaa BLOOM43), designed to improve postoperative outcomes when used prior to mastectomy and breast reconstruction.

The goal of this clinical trial is to learn whether autologous fat transfer (AFT) is as effective and safe as Deep Inferior Epigastric Perforator (DIEP) flap breast reconstruction in irradiated breast cancer patients following mastectomy. It will also evaluate patient satisfaction, quality of life, complication rates, and cost-effectiveness of both reconstruction techniques. The main questions it aims to answer are: Does AFT result in non-inferior patient satisfaction with the reconstructed breast compared to DIEP flap reconstruction 12 months after the final operation? Does AFT result in fewer major complications and improved cost-effectiveness compared to DIEP flap reconstruction? Are quality of life outcomes and oncologic safety comparable between AFT and DIEP flap reconstruction in irradiated patients? Researchers will compare AFT to DIEP flap reconstruction to see if AFT can provide similar reconstructive outcomes with lower morbidity and fewer complications in irradiated breast cancer patients. Participants will: Undergo breast reconstruction using either AFT or DIEP flap reconstruction Attend follow-up visits for clinical examinations, imaging, and assessment of complications Complete questionnaires about breast satisfaction, quality of life, and recovery during follow-up Be monitored for oncologic safety and reconstructive outcomes for 12 months after the final operation

In China, low breast-conserving surgery rates and historically minimal immediate reconstruction following mastectomy have resulted in a significant population of women living without a breast, often leading to long-term psychosocial distress. Current delayed reconstruction options are limited: traditional two-stage implant reconstruction necessitates two surgeries with associated costs and risks like infection and implant exposure, while autologous tissue transfer (e.g., TRAM/DIEP flaps), though offering superior natural aesthetics and patient satisfaction, involves extensive donor-site morbidity, prolonged recovery, and significant scarring, restricting its suitability. To address the drawbacks of both established methods-significant trauma, cost, and complexity-this study evaluates a novel technique for breast cancer patients post-mastectomy: endoscopic delayed direct-to-implant breast reconstruction. This study proposes to conduct a prospective cohort study to analyze complication rates, breast aesthetic scores, quality of life metrics, and other dimensions between delayed direct-to-implant breast reconstruction and abdominal flap breast reconstruction（DIEP and TRAM). The aim is to comprehensively evaluate the safety and clinical feasibility of endoscopic delayed direct-to-implant breast reconstruction.

Patients can undergo breast implant surgery for multiple reasons; cosmetic and reconstructive being the primary indications. In order to confidently state safety and due to strict regulation on medical devices it is important to maintain a record of safety and performance with all medical implants. This study is designed to collect data on a new generation of smooth mammary implants to assess the long term performance and safety data on this type of gel-filled mammary breast implant. The two main complications of breast implants are capsular contracture and rupture; these complications can take years to develop. The study is designed to evaluate the occurrence of these two primary complication as well as other secondary complications over a period of 10 years. Patient follow up will be carried out pre-operatively and post operatively at 12 months and then 3, 5, 8 and 10 years thereafter. The study will be carried out over 10 years to adequately assess complications which may only occur over the lifetime of the device such as systemic complications

Primary objective of this trial: To evaluate the clinical performance (aesthetic outcome and quality of life) and safety of a 3D-printed biodegradable biological mesh in post-mastectomy immediate breast reconstruction. The study targets adult women undergoing total mastectomy for breast cancer followed by implant-based reconstruction. It aims to determine the utility of the 3D-printed biodegradable mesh in implant-based breast reconstruction, assess its influence on tissue regeneration, postoperative cosmetic result, and complication profile.

This clinical trial aims to evaluate whether direct neurotization using fully autologous components during autologous breast reconstruction improves postoperative breast sensation and sensory-related quality of life in women undergoing unilateral mastectomy. Direct neurotization involves coapting the recipient intercostal nerve to an autologous nerve graft placed within the flap to facilitate reinnervation. The study's primary questions are: 1. Does direct neurotization using fully autologous nerve grafts improve cutaneous sensory recovery, as assessed by Semmes-Weinstein monofilament thresholds measured at standardized breast locations? 2. Does neurotization enhance patient-reported sensory outcomes and quality of life, as assessed by the BREAST-Q Sensation Module? As secondary objectives, the study will assess whether biological predictors of nerve regeneration correlate with sensory outcomes. These include: 1. Neuregulin-1 (NRG1) expression in flap tissue biopsy; 2. Cross-sectional area of the recipient nerve fibres; 3. Breast morphometry measured at baseline and follow-up; 4. Intraepidermal nerve fibre density (IENFD) on skin biopsy. Participants will be randomly assigned to receive either: 1. Neurotized autologous breast reconstruction using fully autologous graft components, or 2. Standard (non-neurotized) autologous breast reconstruction. The study will compare these groups to determine whether neurotization accelerates or enhances the return of breast sensation over a 6-month follow-up period, with evaluations at 1 month, 3 months, and 6 months after surgery. Participants will undergo: 1. Autologous breast reconstruction with or without direct neurotization as part of their planned cancer surgery. 2. Sensory testing using Semmes-Weinstein monofilaments at baseline, 1, 3, and 6 months. 3. Completion of BREAST-Q questionnaires evaluating breast sensation, symptoms, and quality of life at each follow-up visit. 3\. Intraoperative tissue sampling for NRG1 analysis and nerve morphometry. 4. Skin biopsy (if applicable) to assess intraepidermal nerve fibre density. 5. Breast morphometry assessment using a breast morphometry measurement software tool. This study seeks to provide high-quality evidence on the effectiveness of direct neurotization using fully autologous components in restoring breast sensation and to explore biological predictors that may influence sensory recovery after autologous breast reconstruction.