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Articles

The influence of venous system patterns on DIEP flap viability for breast reconstruction

ORCID Icon, , , , &
Pages 361-367 | Received 14 Jun 2020, Accepted 27 Feb 2021, Published online: 26 Mar 2021
 

Abstract

A deep inferior epigastric artery perforator (DIEP) flap has unique variations in the anatomy of the vascular supply, and this idea has been adapted to the venous system. Venous system patterns, including connections between the superficial and deep inferior epigastric vein (SDC) or connections of the superficial inferior epigastric vein across the midline-crossing linking veins (MCLV), have gradually become recognized as a cause of fat necrosis and induration due to venous congestion. Therefore, it is important to select patients who are appropriate for transplantation by evaluating blood flow in the flap based on these patterns. The subjects were 52 consecutive patients who underwent DIEP flap breast reconstruction. Relationships of fat necrosis and induration of a transplanted flap and venous system patterns (presence of SDC on the contralateral side: cSDC or MCLV, direction and diameter of perforator vein) in the flap were investigated. Logistic regression and univariate and multivariate analyses were used to identify predictors of fat necrosis and induration of the flap. Fat necrosis and induration were detected in 17.4 and 34.8% of cases, respectively. These incidences were significantly linked to the absence of cSDC and MCLV patterns in the flap. Patients without a cSDC or MCLV pattern had harder fat tissue in Zone II, especially in the distal portion. These results suggest that the absence of a cSDC or MCLV pattern causes complications such as fat necrosis and induration in a transplanted flap. If neither pattern is detected before surgery, improvement of venous drainage is recommended.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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