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Original Research2018 Jan 25. [Epub ahead of print]

JOURNAL：J Interv Cardiol. Article Link

Long-term outcomes of rotational atherectomy of underexpanded stents. A single center experience

Hernández-Enríquez M, Campelo-Parada F, Lhermusier T et al. Keywords: outcomes; rotational atherectomy; stentablation; underexpanded stents

ABSTRACT


OBJECTIVES - To analyze the procedural and long-term outcomes of the use of rotational atherectomy (RA) in underexpanded stents in our cohort and to provide an overview of currently available data on this technique.


BACKGROUND - Stent underexpansion (SU) has been related to stent thrombosis and restenosis. RA has been used to treat undilatable SU as a bail-out strategy with encouraging results.


METHODS - This is an observational, single-center study. We included patients who underwent stentablation between 2013 and 2017. Baseline demographics, procedural results, in-hospital major adverse cardiac events (MACE), and long-term follow-up MACE were retrospectively collected.


RESULTS - A total of 11 patients (90.9% males, mean age 65.4 ± 18.6) were included in this study. Median left ventricle ejection fraction was 53.5% [46.2-55]. Median calculated Syntax score was 16 [9-31] and 45.5% of patients were admitted for acute coronary syndrome. Radial approach was used in 63.6% of cases. Most patients only required one burr (45% used a 1.5 mm diameter burr) during the intervention. Procedural success was achieved in 90.9% of the cases. Acute lumen gain was 42.7% [30.7-61.49]. There were no in-hospital deaths or MACE. At a median follow-up of 26 months, only one patient (9.1%) suffered MACE in the context of acute coronary syndrome, and two patients (18.2%) required non-target lesion revascularization. No deaths were reported.


CONCLUSIONS - RA of under expanded stents is a feasible option with a high rate of procedural success. At long-term follow-up, all of them were alive and 90.9% of patients remained free from MACE.


© 2018 The Authors. Journal of Interventional Cardiology Published by Wiley Periodicals, Inc.

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