J Reconstr Microsurg 2024; 40(05): 379-383
DOI: 10.1055/a-2181-7034
Original Article

The Influence of the Superficial Venous System on DIEP Flap Drainage in Breast Reconstruction

1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Renan Diego Américo Ribeiro
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Eduardo Montag
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Thiago Ueda
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Alberto Yoshikazu Okada
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Alexandre Mendonça Munhoz
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Fabio de Freitas Busnardo
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
,
Rolf Gemperli
1   Hospital das Clínicas, University of São Paulo School of Medicine, São Paulo, Brazil
2   Department of Plastic Surgery, São Paulo State Cancer Institute, São Paulo, Brazil
› Author Affiliations
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Abstract

Background Autologous tissue has become the gold standard in breast reconstruction. The use of a deep inferior epigastric perforator (DIEP) flap has the advantages of giving a natural appearance to the reconstructed breast and being associated with lower morbidity at the donor site when compared with the transverse rectus abdominis myocutaneous flap. Venous complications such as venous thrombosis and insufficiency remain the main causes of flap loss and surgical revisions. The aim of this study was to evaluate the influence of superficial venous drainage of the DIEP flap and the addition of a second venous anastomosis have on flap survival.

Methods This was a retrospective cohort study collected from a prospective database maintained by our institution. Data was obtained from the medical records of female patients who underwent mastectomy and breast reconstruction with a DIEP flap between March 2010 and March 2017. We evaluated 137 DIEP patients with unilateral breast reconstructions. In 64 (46.7%) the deep venous system was chosen and 73 (53.3%) had an additional superficial vein anastomosed.

Results Out of the 137 patients evaluated, there were 16 (11.67%) cases of revision, 14 (10.21%) were due to venous thrombosis. Twelve cases (8.75%) of flap loss were reported. Reoperation rate was lower in the dual venous drainage group when compared with the single venous drainage group (p = 0.005), as was the rate of flap loss (p = 0.006) and reoperation due to venous thrombosis (p = 0.002). Out of the 125 DIEP flaps, fat necrosis was clinically identified in 7 (5.1%) cases, and the rate was lower in the dual venous drainage system group (p = 0.01).

Conclusion Dual venous drainage of a DIEP flap appears to reduce the rates of venous thrombosis, reoperation, total flap loss, and fat necrosis.



Publication History

Received: 04 April 2023

Accepted: 18 September 2023

Accepted Manuscript online:
26 September 2023

Article published online:
03 November 2023

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