Reduction of Arm Volume and Improvement in Lymphedema Via Surgery

This clinical trial aims to explore the effectiveness of surgical interventions for breast cancer-related lymphedema (BCRL), a chronic and often debilitating condition caused by lymphatic system damage following breast cancer treatments, such as lymph node dissection or radiation therapy. BCRL affects a significant proportion of breast cancer survivors, leading to arm swelling, discomfort, restricted mobility, and recurrent infections.

Standard management of BCRL includes conservative measures known as Complex Decongestive Therapy (CDT), which involves manual lymphatic drainage, compression therapy, exercise, and skincare. While CDT offers symptomatic relief, it does not address the underlying lymphatic dysfunction. In contrast, microsurgical procedures like Lymphovenous Anastomosis (LVA) and Vascularized Lymph Node Transfer (VLNT) are emerging as more definitive treatments for BCRL, targeting the lymphatic system itself.

LVA involves connecting small functional lymphatic vessels to nearby veins, allowing lymphatic fluid to bypass damaged lymph nodes and enter the venous system, improving drainage. It is particularly suited for patients with early-stage lymphedema (ISL stage I) where functional lymphatic vessels are still present.

VLNT involves transferring healthy lymph nodes along with their blood supply from a donor site (such as the groin or lateral thorax) to the affected area, promoting lymphangiogenesis and improving lymphatic transport. VLNT is more suitable for advanced stages of lymphedema (ISL stage II), where lymphatic vessels are more severely damaged.

The study will evaluate the outcomes of patients who undergo LVA, VLNT, or a combination of both, in comparison to a control group receiving only CDT. The surgical selection is based on preoperative imaging with indocyanine green (ICG) lymphography to assess the status of the lymphatic system. Each patient's lymphedema stage, severity, and individual characteristics are taken into consideration when choosing the most appropriate treatment.

Patients will be followed for one year postoperatively to measure the effectiveness of each treatment, with the primary outcome being limb volume reduction. Limb volume will be assessed using a perometer, an objective and reliable tool for measuring arm volume. Secondary outcomes include improvement in quality of life, frequency of infections, and the need for ongoing CDT post-surgery.

This study seeks to provide valuable insights into the comparative effectiveness of LVA, VLNT, and CDT in managing BCRL. While the benefits of microsurgical interventions are promising, particularly in reducing limb volume and infections, this trial aims to provide robust evidence to guide clinical decision-making and improve patient outcomes. By comparing different approaches, the study will help to clarify which surgical interventions are most beneficial for different stages of BCRL and establish clearer selection criteria for these treatments.

Inclusion criteria

• at least one of the following persistent complaints of one of the upper extremities: heaviness, pain, recurrent infections

Exclusion criteria

• negative volume difference between affected and normal limb, bilateral mastectomy, bilateral axillary lymph node dissection (ALND), ongoing radio- and chemotherapy, ISL stage III, and receiving other simultaneous debulking procedures during lymphedema surgery.