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Comparison of contraction-type and noncontraction-type lymphatic vessels in lymphaticovenous anastomosis for cancer-related unilateral lower limb lymphedema: a retrospective cohort propensity-score-matched outcome analysis
M. Knoz, YM. Wang, SD. Luo, SC. Wu, WC. Lin, PY. Tsai, PC. Chien, CH. Hsieh, JC. Yang
Language English Country United States
Document type Journal Article, Comparative Study
- MeSH
- Anastomosis, Surgical * MeSH
- Lower Extremity * surgery MeSH
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Lymphatic Vessels * surgery MeSH
- Lymphedema * surgery etiology MeSH
- Genital Neoplasms, Female surgery complications MeSH
- Retrospective Studies MeSH
- Aged MeSH
- Propensity Score * MeSH
- Treatment Outcome MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Comparative Study MeSH
BACKGROUND: Contraction-type lymphatic vessels (LV) are considered suboptimal for lymphaticovenous anastomosis (LVA). However, despite these pathological changes, their functionality and link to outcomes have not been fully elucidated. The aim of this study was to determine the impact on outcomes when contraction-type LVs were used for LVA compared to the noncontraction-type (normal + ectatic) counterpart for treating lower limb lymphedema. STUDY DESIGN: Eighty-three patients with gynecologic cancer-related unilateral lower-limb lymphedema who underwent LVA as their primary treatment were enrolled in this study. The study group included 20 patients who used only contraction-type LVs. An additional 63 patients (control group) received noncontraction-type LVs only. Patients with a history of LVA, liposuction, or excisional therapy were excluded. Patient characteristics, intraoperative findings, functional parameters, and pre-LVA and post-LVA volume changes were recorded and matched using propensity scores. The primary endpoint was the volume change at 6/12 months after LVA. RESULTS: After matching, 20 patients were included in each group. All parameters were matched, except that the study group still had a significantly inferior indocyanine green (ICG)-positive ratio, lymph flow-positive ratio, and washout-positive ratios ( P <0.001, P =0.003, and P <0.001, respectively) when compared to the control group after matching. However, at 1-year follow-up, the postoperative percentage volume reduction was comparable between the groups ( P= 0.619). CONCLUSION: The use of contraction-type LVs for LVA is encouraged when no other LVs are available.
College of Medicine Chang Gung Universifwardty Taoyuan
Department of Diagnostic Radiology Kaohsiung Chang Gung Memorial Hospital Kaohsiung Taiwan
Department of Radiation Oncology
Department of Surgery Division of Plastic and Reconstructive Surgery
References provided by Crossref.org
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- $a Knoz, Martin $u Department of Plastic and Esthetic Surgery, St Anne's University Hospital, Masaryk University, Brno, Czech Republic $u College of Medicine, Chang Gung Universifwardty, Taoyuan $u Department of Surgery, Division of Plastic and Reconstructive Surgery
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- $a BACKGROUND: Contraction-type lymphatic vessels (LV) are considered suboptimal for lymphaticovenous anastomosis (LVA). However, despite these pathological changes, their functionality and link to outcomes have not been fully elucidated. The aim of this study was to determine the impact on outcomes when contraction-type LVs were used for LVA compared to the noncontraction-type (normal + ectatic) counterpart for treating lower limb lymphedema. STUDY DESIGN: Eighty-three patients with gynecologic cancer-related unilateral lower-limb lymphedema who underwent LVA as their primary treatment were enrolled in this study. The study group included 20 patients who used only contraction-type LVs. An additional 63 patients (control group) received noncontraction-type LVs only. Patients with a history of LVA, liposuction, or excisional therapy were excluded. Patient characteristics, intraoperative findings, functional parameters, and pre-LVA and post-LVA volume changes were recorded and matched using propensity scores. The primary endpoint was the volume change at 6/12 months after LVA. RESULTS: After matching, 20 patients were included in each group. All parameters were matched, except that the study group still had a significantly inferior indocyanine green (ICG)-positive ratio, lymph flow-positive ratio, and washout-positive ratios ( P <0.001, P =0.003, and P <0.001, respectively) when compared to the control group after matching. However, at 1-year follow-up, the postoperative percentage volume reduction was comparable between the groups ( P= 0.619). CONCLUSION: The use of contraction-type LVs for LVA is encouraged when no other LVs are available.
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