Duplex Ultrasound Surveillance After Transcarotid Artery Revascularization (TCAR) in Clinical Practice

A retrospective study from two centers March 2017 to January 2020. For 97 patients who had undergone transcarotid artery revascularization (TCAR), the average duplex ultrasound (DU) findings at 12 months after procedure (36% of reached this time point date) were a peak systolic velocity (PSV) 167 ± 153 cm/s, end-diastolic (EDV) 51 55 and internal carotid artery/common (ICA/CCA) ratio 2.3 1.9. Five (5%) exhibited velocities indicative ≥80% in-stent restenosis, defined as PSV >340 cm/s an ICA/CCA >4.2, procedure. Two (2%) underwent repeat intervention for restenosis based on high velocities. >4.2 was consistent with 80% 99% TCAR.