Safety of surgical tracheostomy under continued antithrombotic therapy: A retrospective cohort study.

OBJECTIVE: Although various guidelines have been established for the management of antithrombotic therapy during surgical treatments, surgical tracheostomy (ST) under continued antithrombotic therapy (CAT) remains challenging. Here, we investigated the risk factors for complications after ST by focusing on the application of CAT during ST. DESIGN: A retrospective cohort study with medical records from 2009 to 2020. SETTING: A single-center study. PARTICIPANTS: This study included patients who had undergone ST at the Department of Otolaryngology of our hospital MAIN OUTCOME MEASURES: The primary outcomes were the incidence of complications and blood test results. Secondary outcomes were risk factors for postoperative complications. RESULTS: We identified 288 patients (median age: 64 years; 184 men [64%]), among whom 40 (median age: 67 years; 29 men [73%]) underwent CAT. Although the patients undergoing CAT had significantly longer activated partial thromboplastin time (p=0.002) and a higher prothrombin time-international normalized ratio (p=0.006) compared to antithrombotic naïve patients, no statistically significant intergroup differences were observed for the risk of bleeding, infection, or subcutaneous emphysema. Instead, ST under local anesthesia (p=0.01) and ST for airway emergency (p=0.02) significantly increased the risk of early postoperative complications. CONCLUSION: These results suggest that ST under CAT can be safely performed without any increased risk of postoperative complications. Nevertheless, surgeons should be extra cautious about early complications after ST under local anesthesia without intubation or ST for airway emergencies.