Microsurgical Lymphovenous Bypass for Upper Extremity Lymphedema

Abstract

Introduction: Upper extremity lymphedema following axillary dissection significantly impacts quality of life. This review evaluates lymphovenous bypass outcomes in reducing limb volume and symptoms.

Methods: A literature search identified studies of lymphovenous anastomosis for breast cancer-related lymphedema. Inclusion: objective volume measurement pre- and post-operatively, minimum six-month follow-up. Outcomes: volume reduction, cellulitis episodes, and patient-reported outcomes.

Results: Eighteen studies (n=604 patients) were included. Mean volume reduction was 25-40% at one year. Cellulitis episodes decreased by 60%. Patient-reported outcomes (LYMQOL) improved significantly in all domains. Best results occurred in early-stage (ISL stage I-II) lymphedema. Failure was associated with proximal obliteration or radiation fibrosis.

Discussion: Lymphovenous bypass addresses physiologic flow restoration. Success depends on patient selection, imaging guidance, and surgeon skill. Volume reduction is modest but clinically meaningful. Combined with compression, results are durable.

Conclusions: Lymphovenous bypass is effective for early-stage upper extremity lymphedema. Multidisciplinary management including conservative therapy remains essential.