Optimizing DIEP Flap Insetting for Immediate Unilateral Breast Reconstruction: A Prospective Cohort Study of Patient-Reported Aesthetic Outcomes

Background: To improve the aesthetic outcome of deep inferior epigastric perforator (DIEP) flap breast reconstruction, flaps should be tailored to the patient's characteristics. A single method of DIEP flap insetting will not suffice for all women seeking breast reconstruction. The authors share the outcomes of a prospective longitudinal study on DIEP flap insetting and present an algorithm for reconstruction. Methods: Over 4 years, 70 consecutive immediate unilateral DIEP flap breast reconstructions were prospectively evaluated. DIEP insetting was based on the characteristics of the donor site and contralateral breast, according to the authors' algorithm. Baseline and outcome data were collected. Aesthetic outcomes were evaluated by a panel of three independent assessors, and patient-reported outcomes were quantified using the BREAST-Q at 1 year after reconstruction. Results: Seventy women underwent reconstruction. There were no total or partial flap failures, four cases of fat necrosis, and 14 revision operations. Women reported a mean overall BREAST-Q score of 82 of 100, representing excellent satisfaction but poor satisfaction with sexual well-being. BREAST-Q scores were not associated with age or body mass index. Fat necrosis reduced satisfaction with the chest (absolute mean reduction, 13; 95 percent CI, 8 to 18; p = 0.002). Independent assessors scored the outcomes favorably, but there was no agreement between surgeons, nurses, and lay assessors. Conclusions: The authors' algorithm can support surgeons in selecting individually tailored DIEP flap insetting to achieve excellent aesthetic outcomes. Further research is needed as to the relevance of scores from BREAST-Q in relation to interventions. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

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