RESUMO
BACKGROUND: Prolonged drain placement occasionally causes complications such as infection in patients who have undergone implant-based breast reconstruction; therefore, the drainage period must be shortened to avoid complications. PURPOSE: To identify the factors that prevent prolonged drain placement in patients who have undergone immediate breast reconstruction with tissue expanders. METHODS: This was a retrospective medical chart review of all patients who underwent immediate breast reconstruction with tissue expanders at a single center from April 2013 to March 2016. Closed-suction drains were placed in and on the implant pocket. An extra drain was positioned in the axilla in patients undergoing axillary lymph node dissection. The drains were removed at a drainage volume of ≤50 ml per 24 hours. Prolonged drain placement was defined as a period greater than the 75th percentile among all patients. Nine potential risk factors associated with prolonged drain placement were analyzed with multivariate logistic regression analysis. RESULTS: In total, 89 tissue expanders in 89 patients were placed in this study. Prolonged drain placement, determined as ≥9 days (range, 5-14 days), was significantly associated with body mass index ≥25 kg/m2, tissue expander size ≥500 ml, and intraoperative bleeding ≥100 ml, in the multivariate analysis. Axillary lymph node dissection with extra-axillary drainage did not prolong the drainage period. CONCLUSIONS: Our findings suggested that placing an extra-axillary closed-suction drain following axillary dissection, and reducing intraoperative bleeding and surgical trauma, could prevent prolonged drain placement in immediate breast reconstruction with tissue expanders.
