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  • Title: Early hemodynamic characteristics of eversion and patch carotid endarterectomies.
    Author: Chait J, Nicoara M, Kibrik P, Ostrozhynskyy Y, Marks N, Rajaee S, Hingorani A, Ascher E.
    Journal: J Ultrasound; 2019 Dec; 22(4):433-436. PubMed ID: 31069757.
    Abstract:
    OBJECTIVE: Carotid endarterectomy (CEA) is currently the gold standard in the operative management of carotid artery stenosis. While eversion and patch CEAs vary greatly in technique, various studies have determined equivalence with regard to clinical outcomes. However, the hemodynamic differences following each procedure are not known. This study aimed to investigate any early hemodynamic differences between eversion and patch CEAs. METHODS: All CEAs performed at our institution from March 2012 to June 2018 were aggregated in a retrospective database by querying the 35301 CPT code from the electronic medical record system. Variables collected included gender, age, laterality of CEA, type of procedure, and pre- and post-operative duplex ultrasound (DUS) date and quantitative findings. Exclusion criteria included any procedure with incomplete data, a post-operative DUS > 90 days following the procedure, CEAs with concomitant bypass(es), isolated external carotid artery (ECA) endarterectomies, and re-do CEAs. RESULTS: One hundred and seventy-one CEAs were performed in 161 unique patients. There were 101 males and 60 females, with an average age of 69.7 (38-96; ± 9.36). 63 CEAs were excluded from analysis: 51 due to incomplete data, eight with a > 90 day post-operative DUS, 2 isolated ECA endarterectomies, 1 CEA with a carotid-subclavian bypass, and 1 re-do CEA secondary to an infected patch. Twenty-seven eversion and 81 patch CEAs were included in analysis. There was no difference in procedure laterality or gender between the two cohorts (p > 0.05); however, patients who received an eversion CEA were older on average (73.3 vs 67.5; p = 0.002). Pre-operative peak systolic velocities (PSV) of the proximal internal carotid artery (ICA), distal ICA, and distal common artery (CCA) were all similar (p > 0.05). Post-operative DUS was performed at 17.0 and 12.9 days in the eversion and patch CEA cohorts, respectively (p = 0.12). Post-operative PSV and change in PSV were similar for all three aforementioned segments (p > 0.05). CONCLUSION: Although eversion and patch CEAs vary greatly in technique and post-procedure anatomy, there was no significant difference in post-operative PSV or change in PSV at or around the carotid bifurcation.
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