Abstract
Background
Bailout stenting after suboptimal paclitaxel-coated balloon (PCB) angioplasty is required in up to 28% of cases. We sought to compare the safety of bailout stenting with drug-eluting stents (DES) compared with the more established combination of PCB with bare metal stents (BMS).
Methods
We retrospectively evaluated all patients who had stents implanted owing to suboptimal PCB angioplasty results between January 2010 and April 2015. Endpoints analyzed were major adverse cardiac events (MACE) – defined as cardiovascular death, nonfatal myocardial infarction (MI), and target lesion revascularization (TLR) – as well as major and minor bleeding.
Results
Baseline clinical characteristics were comparable with a high proportion of diabetics in both groups (50.0% vs. 45.8%, p = 0.74). BMS and DES sizes were similar (mean diameter 2.72 ± 0.50 mm vs. 2.89 ± 0.56 mm, p = 0.20, length 25.22 ± 13.47 mm vs. 28.08 ± 9.08 mm, p = 0.47). Outcomes were comparable at the end of 1 year (MACE 12.2% vs. 9.5%, p = 1.00, TLR 6.1% vs. 4.8%, p = 1.00, MI 0% vs. 4.8%, p = 0.30). There was no case of stent thrombosis or major bleeding, and the rates of minor bleeding were similar (4.2% vs. 4.8%, p = 1.00).
Conclusion
Our initial experience using DES instead of BMS as a bailout after suboptimal PCB results shows that the procedure is safe and effective at 1 year.
Zusammenfassung
Hintergrund
Eine Notfallstenteinlage nach suboptimaler Angioplastie mit einem paclitaxelbeschichteten Ballon („paclitaxel-coated balloon“, PCB) ist in bis zu 28% der Fälle erforderlich. Ziel der vorliegenden Arbeit war ein Vergleich der Sicherheit der Notfallstentversorgung mit medikamentenfreisetzenden Stents („drug-eluting stents“, DES) gegenüber der etablierten Kombination aus PCB und reinen Metallstents („bare metal stents“, BMS).
Methoden
Dazu wurden die Daten aller Patienten retrospektiv ausgewertet, bei denen zwischen Januar 2010 und April 2015 Stents aufgrund suboptimaler Ergebnisse nach PCB-Angioplastie implantiert wurden. Ausgewertete Endpunkte waren hierbei schwerere unerwünschte kardiale Ereignisse („major adverse cardiac events“, MACE), nichtletaler Myokardinfarkt (MI) und die Revaskularisierung der Zielläsion („target lesion revascularization“, TLR) sowie größere und kleinere Blutungen.
Ergebnisse
Die klinischen Merkmale mit einem hohen Anteil an Diabetikern bei Studienbeginn waren in beiden Gruppen vergleichbar (50,0% vs. 45,8%; p = 0,74). Die Größen der BMS und DES waren ähnlich (durchschnittlicher Durchmesser: 2,72 ± 0,50 mm vs. 2,89 ± 0,56 mm; p = 0,20; Länge: 25,22 ± 13,47 mm vs. 28,08 ± 9,08 mm; p = 0,47). Nach Ende eines Jahren waren die Ergebnisse vergleichbar (MACE: 12,2% vs. 9,5%; p = 1,00; TLR 6,1% vs. 4,8%; p = 1,00; MI 0% vs. 4,8%; p = 0,30). Es gab keinen Fall einer Stentthrombose oder einer schweren Blutung, und die Rate kleinerer Blutungen war in beiden Gruppen ähnlich (4,2% vs. 4,8%; p = 1,00).
Schlussfolgerung
Die anfänglichen Erfahrungen der Autoren mit dem Einsatz von DES anstelle von BMS zur Notfalltherapie nach suboptimalen PCB-Ergebnissen zeigen nach einem Jahr, dass dieses Vorgehen sicher und wirksam ist.
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K.H. Mok, U. Wickramarachchi, T. Watson, H.H. Ho, S. Eccleshall, and P.J.L. Ong declare that they have no competing interests.
This article is based on retrospective registry data of real-world patients.
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Mok, K.H., Wickramarachchi, U., Watson, T. et al. Safety of bailout stenting after paclitaxel-coated balloon angioplasty. Herz 42, 684–689 (2017). https://doi.org/10.1007/s00059-016-4502-9
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DOI: https://doi.org/10.1007/s00059-016-4502-9