• Annals of surgery · Mar 2024

    Intraoperative Completion Studies and their Associations with Carotid Endarterectomy Outcomes.

    • Christoph Knappich, Bianca Bohmann, Felix Kirchhoff, Vanessa Lohe, Shamsun Naher, Michael Kallmayer, Hans-Henning Eckstein, and Andreas Kuehnl.
    • Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
    • Ann. Surg. 2024 Mar 28.

    ObjectiveThis study aimed at assessing outcomes after carotid endarterectomy (CEA) in dependence of center policy with respect to imaging intraoperative completion study (ICS i ) usage.Summary Background DataAlthough randomized controlled studies are missing, a beneficial effect was shown for ICS i techniques (i.e., angiography and intraoperative duplex ultrasound) after CEA.MethodsThis secondary data analysis is based on the German statutory quality assurance database. Research was funded by Germany's Federal Joint Committee Innovation Fund (G-BA Innovationsfonds, 01VSF19016 ISAR-IQ). According to their ICS i policy, hospitals were categorized as routine ICSi (>90%), selective ICSi (10-90%), or sporadic ICSi (<10%) centers . Primary study outcome was in-hospital stroke or death. Multivariable regression analyses were performed.ResultsBetween 2012 and 2016, a total of 119,800 patients underwent CEA. In-hospital stroke or death rates were lower in routine ICSicenters (1.7%) compared to selective (2.1%) and sporadic ICSicenters (2.0%). The multivariable regression analysis showed, that in routine ICSicenters , ICS i use was associated with lower rates of stroke or death (aOR 0.64; 95% CI 0.44-0.93). In selective ICSicenters , ICS i was not associated with the occurrence of either of the assessed outcomes. In sporadic ICSicenters , ICS i was associated with higher rates of stroke or death (aOR 1.91; 95% CI 1.26-2.91).ConclusionsLowest in-hospital stroke or death rates are achieved in r outine ICSicenters . While ICS i is associated with a lower perioperative risk in r outine ICSicenters , it might act as a surrogate marker for worse outcomes due to intraoperative irregularities in sporadic ICSicenters . Routine use of ICS i is advisable.Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.

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