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  • Title: Percutaneous intervention in chronic total coronary occlusions caused by in-stent restenosis: procedural results and long-term clinical outcomes in the TORO (Spanish registry of chronic TOtal occlusion secondary to an occlusive in-stent RestenOsis) multicentre registry.
    Author: de la Torre Hernandez JM, Rumoroso JR, Subinas A, Gonzalo N, Ojeda S, Pan M, Martín Yuste V, Suárez A, Hernández F, Teruel L, Moreu J, Cubero JM, Cascón JD, Vinhas H, Lozano Í, Martin Moreiras J, Pérez de Prado A, Goicolea J, Escaned J.
    Journal: EuroIntervention; 2017 Jun 02; 13(2):e219-e226. PubMed ID: 27993757.
    Abstract:
    AIMS: Limited data exist on the treatment and outcomes of patients with chronic total occlusions due to in-stent restenosis (CTO-ISR). We sought to evaluate results and clinical outcomes in percutaneous interventions over CTO-ISR. METHODS AND RESULTS: We conducted a registry in 16 centres involving consecutive patients undergoing attempted percutaneous intervention over CTO-ISR. A total of 233 patients were included, 192 (82.4%) with a successful acute result. The success rate was significantly lower in patients with: lesion in the circumflex artery, ostial lesions, J score >3 and no femoral access. The presence of tandem lesions (OR 0.19, 95% CI: 0.06-0.68; p=0.01) was identified as an independent predictor for outcome. After a median follow-up of 20 months, cardiac death in the successful vs. failed groups was 3% and 8.3%, respectively (p=0.09). Independent predictors for mortality were previous CABG (HR 8, 95% CI: 1.3-50; p=0.02) and multivessel disease (HR 2.3, 95% CI: 1.2-4.3; p=0.01). In the successful group, TLR was 15%, re-occlusion 6% and definite/probable stent thrombosis 1.8%. CONCLUSIONS: Percutaneous treatment of CTO due to ISR in contemporary practice shows a high success rate, resulting in good long-term results. The angiographic and procedural predictors identified may contribute to improving procedural outcome through better patient selection.
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