Incidence of VTE in the First Postoperative 24 Hours after Abdominopelvic Surgery: A Single-Centre Observational Study

1. Abstract
1.1. Background: A good number of research reports the incidence of postoperative venous thromboembolism (VTE) mostly looks at longer postoperative duration, usually days after surgery.
1.2. Objective: We investigated the incidence of early asymptomatic VTE (24 hours postoperatively) to assess the relevance of generalisation of extended post-hospital discharge chemoprophylaxis.
1.3. Methods: We conducted a single-centre, observational study. Data from patients undergoing surgery were recorded, and the 24 hours post-op VTE incidence was determined primarily by Doppler ultrasound of the lower limbs. Statistical analysis controlling for age, sex, body mass index, laboratory results, medical history, surgery type, and details were performed to determine the risk of VTE.