Abstract
Deep inferior epigastric perforator (DIEP) flap breast reconstruction is among the higher-risk patient groups for venous thromboembolism (VTE) in plastic surgery. Surgeons often opt for a patient-specific approach to postoperative anticoagulation, and the field has yet to come to a consensus on VTE chemoprophylaxis regimens. A new chemoprophylaxis protocol was introduced starting in March of 2019 that involved 2 weeks of treatment with enoxaparin, regardless of patient risk factors. A retrospective chart review was conducted on all patients who underwent DIEP flap breast reconstruction at the authors' institution between January of 2014 and March of 2020. Patients were grouped based on whether they enrolled in the new VTE protocol in the postoperative period or not. Patient demographics, prophylaxis type, and outcomes data were recorded, retrospectively. The primary outcome measure was postoperative VTE incidence. Risk of VTE was significantly higher in patients discharged without VTE prophylaxis compared with patients discharged with prophylaxis (3.7% versus 0%; P = 0.03). Notably, zero patients in the VTE prophylaxis group developed a deep venous thrombosis or pulmonary embolism. In addition, the risk of a VTE event was 25 times greater in patients with a Caprini score greater than or equal to 6 ( P = 0.0002). The authors demonstrate the successful implementation of a 2-week VTE chemoprophylaxis protocol in DIEP flap breast reconstruction patients that significantly reduces the rate of VTE while not affecting the rate of hematoma complications. Therapeutic, III.
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