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This is a retrospective single-centre study of 708 adult patients who underwent primary LT between 2010–2022 and underwent rDUS on post-operative day (POD) 0, 1 and 7, followed by Computed Tomography (CT) if abnormal. Timing and outcomes of HAT, PVT and HVOO, number needed to diagnose one complication (NND) and positive predictive value (PPV) of rDUS was calculated. HAT developed in N= 50 (7.1%; 68% in first week), PVT in N= 58 (8.2%) and HVOO in N= 22 (3.1%). Most early complications were diagnosed on POD 0 (26.9%), 1 (17.3%) and 5 (17.3%). Of the 26 vascular events on protocol days (0, 1, 7), 21 (80.7%) were detected by rDUS. PPV of rDUS was 53.8%(21/39), detection rate 1.1%(21/1900 ultrasounds) and NND was 90.5. Median time to diagnosis was 4 days for HAT, 21 days for HVOO and 47 days for PVT. The vascular events detected by rDUS led to surgical re …