Lymphovenous anastomosis improves quality of life in breast cancer-related lymphedema
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Key Takeaway
Consider therapeutic LVA to improve QOL in breast cancer-related lymphedema; preventive ILR lacks significant evidence.
This meta-analysis evaluated the impact of lymphovenous anastomosis (LVA) on quality of life (QOL) in patients with breast cancer-related lymphedema (BCRL). The analysis included 316 patients receiving therapeutic LVA for established lymphedema and 258 patients undergoing immediate lymphatic reconstruction (ILR) plus axillary lymph node dissection (ALND) compared with 400 ALND-only controls for prevention.
For therapeutic LVA, QOL improved significantly (SMD 0.86; 95% CI 0.62-1.10; p < 0.0001), with low heterogeneity (I²=26%). Significant improvements were also seen in physical function (SMD 1.54; 95% CI 0.38-2.71; p=0.02) and mental health (SMD 1.03; 95% CI 0.37-1.68; p=0.01). However, household activities, social activities, and mobility activities did not reach statistical significance (p=0.08, p=0.07, p=0.27, respectively).
For preventive ILR, the QOL benefit was not statistically significant (SMD 0.77; 95% CI -1.17 to 2.70; p=0.23), and the analysis was limited by few studies and substantial heterogeneity (I²=95%). The authors note that the prevention analysis included all ALND patients rather than only those who developed lymphedema.
Clinicians should consider therapeutic LVA as an option to improve QOL in patients with BCRL, particularly for physical and mental health domains. Evidence for prophylactic ILR remains insufficient, and further studies are needed.
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View Original Abstract ↓
BACKGROUND: Breast cancer-related lymphedema (BCRL) substantially impairs quality of life (QOL) following axillary lymph node dissection (ALND). Lymphovenous anastomosis (LVA) is used for prevention (immediate lymphatic reconstruction, ILR) and treatment of BCRL. This meta-analysis evaluated LVA effectiveness in QOL across both settings.
METHODS: Literature search identified 795 studies and 13 met inclusion criteria: 4 (258 ILR + ALND and 400 ALND-only) examined LVA for prevention and 9 (316 patients) evaluated LVA for BCRL treatment. QOL was assessed using different validated questionnaires. Meta-analysis was conducted using random-effects modeling and Hartung-Knapp-Sidik-Jonkman adjustment for conservative confidence intervals. Results are reported as standardized mean differences (SMD) with 95% confidence intervals (CI).
RESULTS: ILR + ALND did not show statistically significant QOL benefits compared to ALND-only (SMD 0.77, 95% CI -1.17 to 2.70, p = 0.23) with substantial heterogeneity (I² = 95%), indicating variability in measurement approaches. However, therapeutic LVA for established BCRL demonstrated statistically significant improvement in QOL (SMD 0.86, 95% CI 0.62-1.10, p < 0.0001) with low heterogeneity (I² = 26%, p = 0.16), suggesting consistent benefit. Subgroup analysis by QOL domains demonstrated significantly improved physical function (SMD 1.54, 95% CI 0.38-2.71, p = 0.02) and mental health (SMD 1.03, 95% CI 0.37-1.68, p = 0.01). However, household (p = 0.08), social (p = 0.07), and mobility activities (p = 0.27), did not reach statistical significance.
CONCLUSION: Therapeutic LVA significantly improved QOL in patients with BCRL across physical function and mental health domains. In contrast, insufficient evidence exists for prophylactic ILR during ALND on QoL outcomes, limited by few studies, substantial heterogeneity, and inclusion of all ALND patients rather than those who developed lymphedema, potentially obscuring its protective effects.
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