Venous thromboembolism chemoprophylaxis in mastectomy patients: A 5‐year follow‐up study

Background Venous thromboembolism (VTE) chemoprophylaxis in breast surgery remains controversial. In 2012, we instituted a practice change of routine chemoprophylaxis for patients with invasive cancer undergoing mastectomy. Herein, we report the effects of this on rates of VTE and hematoma. Methods Our 30‐day rates of VTE and hematoma requiring reoperation among patients with mastectomy since the practice change were retrospectively collected from National Surgical Quality Improvement Program (NSQIP). The subsequent 5‐year data (2012‐2017) was compared with historic NSQIP data (2006‐2010). We utilized information from our 30‐day follow‐up databank to assess patients not sampled by NSQIP. Results After the practice change, the heparin prophylaxis rate rose from 19.5% to 95.6% (P