J Reconstr Microsurg 2024; 40(05): 334-347
DOI: 10.1055/a-2181-7559
Original Article

Lymphovenous Coupler-Assisted Bypass for Immediate Lymphatic Reconstruction

1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
2   Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
3   Department of Plastic and Reconstructive Surgery, MedStar Washington Hospital Center, Washington, District of Columbia
,
1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
4   Plastic & Reconstructive Surgery Division, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
Parhom N. Towfighi
5   Department of Surgery, University of Pittsburgh Medical Center (UPMC) Mercy Hospital, Pittsburgh, Pennsylvania
,
Romina Deldar
1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
,
Nisha Gupta
2   Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
,
1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
2   Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
,
Banafsheh Sharif-Askary
1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
,
Kenneth L. Fan
1   Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
,
Rajiv P. Parikh
4   Plastic & Reconstructive Surgery Division, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
,
4   Plastic & Reconstructive Surgery Division, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
› Author Affiliations
Funding None.

Abstract

Background Breast cancer-related lymphedema is the most common cause of lymphedema in the United States and occurs in up to 50% of individuals receiving axillary lymph node dissection (ALND). Lymphovenous bypass (LVB) at the time of ALND may prevent lymphedema, but long-term results and anastomotic patency are unclear. This study evaluates the feasibility and outcomes of performing immediate lymphatic reconstruction via coupler-assisted bypass (CAB).

Methods This is a retrospective review of all patients undergoing prophylactic LVB following ALND at two tertiary care centers between 2018 and 2022. Patients were divided into cohorts based on whether they received the “standard” end-to-end (E-E) suturing or CAB technique. The primary outcome of interest was development of lymphedema. Quantitative and qualitative assessments for lymphedema were performed preoperatively and at 3, 6, 12, and 24 months postoperatively.

Results Overall, 63 LVBs were performed, of which 24 lymphatics underwent immediate reconstruction via “CAB” and 39 lymphatics via “standard” end-to-end suture. Patient characteristics, including body mass index, and treatment characteristics, including radiation therapy, did not significantly differ between groups. CAB was associated with a greater mean number of lymphatics bypassed per vein (standard 1.7 vs. CAB 2.6, p = 0.0001) and bypass to larger veins (standard 1.2 vs. CAB 2.2 mm, p < 0.0001). At a median follow-up of 14.7 months, 9.1% (1/11) of individuals receiving CAB developed lymphedema. These rates were similar to those seen following standard bypass at 4.8% (1/21), although within a significantly shorter follow-up duration (standard 7.8 vs. CAB 14.7 months, p = 0.0170).

Conclusion The CAB technique is a viable, effective technical alternative to the standard LVB technique. This comparative study of techniques in prophylactic LVB suggests that CABs maintain long-term patency, possibly due to the ease of anastomosing several lymphatics to single large caliber veins while reducing the technical demands of the procedure.



Publication History

Received: 27 January 2023

Accepted: 18 September 2023

Accepted Manuscript online:
26 September 2023

Article published online:
15 February 2024

© 2024. Thieme. All rights reserved.

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333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

 
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