Operator volumes and in-hospital outcomes: an analysis of 7,740 rotational atherectomy procedures from the BCIS national database

Kinnaird, Tim, Gallagher, Sean, Sharp, Andrew, Protty, Majd, Salim, Tariq, Ludman, Peter, Copt, Samuel, Curzen, Nick and Mamas, Mamas A. 2021. Operator volumes and in-hospital outcomes: an analysis of 7,740 rotational atherectomy procedures from the BCIS national database. JACC: Cardiovascular Interventions 14 (13) , pp. 1423-1430. 10.1016/j.jcin.2021.04.034

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Abstract

Objectives The aims of this study were to use a national percutaneous coronary intervention (PCI) registry to study temporal changes in procedure volumes of PCI using rotational atherectomy (ROTA-PCI), the patient and procedural factors associated with differing quartiles of operator ROTA-PCI volume, and the relationship between operator ROTA-PCI volumes and in-hospital patient outcomes. Background Whether higher operator volume is associated with improved outcomes after ROTA-PCI is poorly defined. Methods Data from the British Cardiovascular Intervention Society national PCI database were analyzed for all ROTA-PCI procedures performed in the United Kingdom between 2013 and 2016. Individual logistic regressions were performed to quantify the independent association between annual operator ROTA-PCI volume and in-hospital outcomes. Results In total, 7,740 ROTA-PCI procedures were performed, with a negatively skewed distribution and an annualized operator volume median of 2.5 procedures/year (range: 0.25 to 55.25). Higher volume operators undertook more complex procedures in patients with greater comorbid burdens than lower volume operators. A significant inverse association was observed between operator ROTA-PCI volume and in-hospital mortality (odds ratio [OR]: 0.986/case; 95% confidence interval (CI): 0.975 to 0.996; p = 0.007) and major adverse cardiac and cerebral events (OR: 0.983/case; 95% CI: 0.975 to 0.993; p < 0.001). Additionally, lower rates of emergency cardiac surgery (OR: 0.964/case; 95% CI: 0.939 to 0.991; p = 0.008), arterial complications (OR: 0.975/case; 95% CI: 0.975 to 0.982; p < 0.001) and in-hospital major bleeding (OR: 0.985/case; 95% CI: 0.977 to 0.993; p < 0.001) were associated with higher ROTA-PCI operator volume. Sensitivity analyses in several subgroups demonstrated a consistency of improved outcomes as annual ROTA-PCI volume increased. An annual volume of <4 ROTA-PCI procedures/year was observed to be associated with increased major adverse cardiac and cerebral events, with 239 of 432 operators (55%) not exceeding this threshold. Conclusions In-hospital adverse outcomes occurred less frequently as ROTA-PCI operator volume increased. These data suggest that operator volume is an important factor determining outcome after ROTA-PCI.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Publisher:	Elsevier
ISSN:	1936-8798
Date of Acceptance:	20 April 2021
Last Modified:	31 Jan 2022 07:16
URI:	https://orca.cardiff.ac.uk/id/eprint/142041

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