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  • Title: Prognostic Impact of Scoring Balloon Angioplasty After Rotational Atherectomy in Heavily Calcified Lesions Using Second-Generation Drug-Eluting Stents: A Multicenter Registry-Based Study.
    Author: Kawashima H, Kyono H, Nakashima M, Okai I, Jujo K, Dohi T, Otsuki H, Tanaka K, Nagura F, Okazaki S, Hagiwara N, Daida H, Kozuma K.
    Journal: Cardiovasc Revasc Med; 2020 Mar; 21(3):322-329. PubMed ID: 31201059.
    Abstract:
    BACKGROUND: We aimed to assess the impact of scoring balloon angioplasty (SBA) after rotational atherectomy (RA) on long-term clinical outcomes in patients who underwent percutaneous coronary intervention (PCI) using second-generation drug-eluting stents (DES). The long-term outcomes associated with SBA after RA in severely calcified lesions is unknown. METHODS: Using the J2T ROTA registry data, we evaluated the clinical events of patients who underwent PCI using RA for heavily calcified lesions from January 2004 to December 2015. A total of 307 patients who underwent PCI with second-generation DES were analyzed and divided into the SBA (n = 96) and conventional balloon angioplasty (CBA) groups (n = 211). Eighty-two and 189 patients comprised the "SBA after small burr (SBA-SB)" and "CBA after small burr (CBA-SB)" subgroups, respectively, for the subgroup analysis. Study endpoints were incidence of 3-year major adverse cardiac events (MACE), target vessel revascularization (TVR), and target lesion revascularization (TLR). RESULTS: Kaplan-Meier analysis revealed that the incidence of 3-year cumulative MACE, TVR, and TLR were comparable between groups, and that the incidences of 3-year cumulative MACE, TVR, and TLR were significantly lower in the SBA-SB subgroup than in the CBA-SB subgroup (log-rank p = 0.008; log-rank p = 0.047; log-rank p = 0.045; respectively). Multivariate Cox regression model indicated that SBA after RA was an independent predictor of MACE (hazard ratio: 0.337; 95% confidence interval: 0.139 to 0.817; p = 0.016). CONCLUSIONS: Additional SBA following RA was associated with lower MACE incidence in patients undergoing RA with a small-sized burr.
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