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Minerva Cardioangiologica 2018 October;66(5):528-35

DOI: 10.23736/S0026-4725.18.04567-X

Copyright © 2018 EDIZIONI MINERVA MEDICA

language: English

Long-term prognostic impact of non-invasive follow-up with computed tomography angiography in patients with left main coronary artery stenting

Gerard ROURA 1 , Josep GOMEZ-LARA 1, Lara FUENTES CASTILLO 1, José L. FERREIRO 1, Rafael ROMAGUERA 1, Luis TERUEL 1, Montserrat GRACIDA BLANCAS 1, Elena CARREÑO 2, Joan A. GOMEZ-HOSPITAL 1, Angel CEQUIER 1

1 Unit of Interventional Cardiology, Heart Disease Institute, IDIBELL - Bellvitge Biomedical Research Institute, University of Barcelona, Barcelona, Spain; 2 Department of Radiology, IDIBELL - Bellvitge Biomedical Research Institute, University of Barcelona, Barcelona, Spain



BACKGROUND: Left main coronary artery (LMCA) stenting is an evolving technique. Whether follow-up computed tomography angiography (CTA) might have clinical impact in these patients is controversial. The aim of present study is to compare clinical outcomes of patients with LMCA stenting followed with CTA versus patients with conventional clinical follow-up.
METHODS: From 2003 to 2014 all consecutive patients with unprotected LMCA stenosis treated with single DES implantation were prospectively included. Since 2009 all patients underwent CTA at 6-month after LMCA stenting. Therefore, the non-CTA group included all patients treated from 2003 to 2009 and the CTA group included patients treated from 2009 to 2014. Patients with 6-month cardiac events, renal dysfunction or atrial fibrillation were excluded. All patients underwent at least 2-year clinical follow-up. The primary endpoint was a composite of cardiac death, nonfatal myocardial infarction, and LMCA revascularization.
RESULTS: A total of 236 patients were included (119 in the non-CTA and 117 in the CTA group). Nine event-free patients presented with in-stent restenosis as assessed by CTA at 6 months; 5 had angiographic confirmation and were revascularized. At 2 years, the primary end-point was observed in 15.1% and 7.3% of patients of the non-CTA and CTA groups, respectively (P=0.07). All-cause mortality was higher in the non-CTA group (8.4% vs. 2.6%; P=0.05). Euroscore and CTA were found independent predictors of the primary end-point in the multivariate analysis.
CONCLUSIONS: Elective 6-month CTA after LMCA stenting is associated with better outcomes compared to conventional clinical follow-up.


KEY WORDS: Computed tomography angiography - Coronary restenosis - Percutaneous coronary intervention

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