COVID-19 and postoperative complications after plastic surgery procedures: More than just hypercoagulability.

Background: Although plastic surgery procedures generally demonstrate less than 2% incidence of venous thromboembolism (VTE) outcomes, the post-COVID era data remain elusive. This study sought to elucidate the relationship between COVID-19 infection and the risk of VTE outcomes across plastic surgery procedures.

Methods: Plastic surgery procedures were identified in the 2012-2022 National Surgical Quality Improvement Program databases. The outcomes of interest were the postoperative occurrence of VTE, defined as deep vein thrombosis (DVT) or pulmonary embolism (PE), and postoperative complication. Propensity score matching was used to 1) compare overall rates of VTE between the pre-pandemic era and pandemic era cohorts and 2) compare rates of VTE and overall postoperative complications in cases with and without COVID-19 diagnosis in the years 2021-2022 (p < 0.05).

Results: Overall, 269,006 plastic surgery cases were identified, comprising general breast (76%) and trunk (9.4%) procedures. Non-breast free tissue transfer cases were associated with the highest rates of DVT (1.3%) and trunk procedures with the highest rates of PE (0.7%). After propensity score matching, the overall rate of VTE after the onset of the COVID-19 pandemic was not significantly different from the pre-pandemic era (p = 0.40). In a separately matched cohort, COVID-19 diagnosis did not significantly predict the risk for VTE (p = 0.48) but did significantly predict the risk for overall postoperative complications (p < 0.001).

Conclusions: Although COVID-19 diagnosis itself did not predict the risk of VTE in matched analysis, it significantly predicted the overall postoperative complications. Future studies may further investigate the effects of COVID-19 infection over longer periods of follow-up.