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It was reported via literature article that burr was stuck in lesion.Current guidelines recommend rotational atherectomy (ra) as a rescue treatment for calcified or fibrotic lesions that cannot be fully expanded before stent implantation.Present study compared the procedural and one-year clinical outcome of planned (pra) or rescue ra (rra) for patients undergoing percutaneous coronary intervention with severe coronary stenosis and calcification.A total of 111 consecutive patients who underwent ra at (b)(6) hospital of (b)(6) from (b)(6) 2021 to (b)(6) 2023 were enrolled.Percutaneous coronary intervention was performed through the radial artery, brachial artery or femoral artery, and unfractionated heparin 70 to 100 u/kg was given before pci.The boston scientific rotablator tm was used for ra, and the ra head was rota link tm (diameters: 1.25 mm, 1.50 mm, and 1.75 mm, respectively).The size of the ra head was selected to have a ratio of 0.5 to 0.6 between the ra head diameters and the vessel diameter, and the ra speed was 140,000 to 160,000 rpm, and each ra lasted 10 to 15 s.During ra, continuous intracoronary infusion of a mixture containing unfractionated heparin and nitroglycerin was used.The success of ra was defined as complete balloon dilatation of the target lesion after ra.Before ra, all patients received 300 mg aspirin and an oral loading dose of a p2y12 inhibitor (clopidogrel or ticagrelor).At discharge, all patients received aspirin (100 mg daily) plus clopidogrel (75 mgdaily) or ticagrelor (90 mg twice daily) for at least 1 year.According to the timing of initiation of ra, patients were stratified into pra group (n = 84) or rra group (n = 27).Baseline clinical characteristics were similar between the two groups.The number of stents implanted was similar in the two groups.The rra group required more pre dilation balloons (1.7 0.7 vs.3.4 0.5, p < 0.001), exhibited a higher rate of coronary artery dissection (29.6% vs.7.1%, p = 0.02) and consumed a larger volume of contrast (189.8 59 ml vs.139.9 46 ml, p < 0.001).Additionally, the incidence of contrast induced nephropathy was significantly greater in the rra group (29.6% vs.9.5%, p = 0.01), and the procedure duration was markedly longer in this group compared to the pra group (91.5 24.3 min vs.77.9 25.2 min, p < 0.001).Multivariable logistic regression identified rra as an independent predictor of periprocedural complications (adjusted or = 2.83; 95% ci:1.01 to 7.99; p = 0.048).Perioperative complication included ra head incarceration that could not be evacuated.
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B3 date of event: earliest possible date of event as the patients underwent ra from (b)(6) 2021 - (b)(6) 2023 detailed product information was not provided to bsc, because the product is unknown, we are unable to provide the unique identifier (udi) # and other specific product information.Liu x, wan l, liu y, gu y and hu l (2025) planned vs.Rescue rotational atherectomy in severe coronary calcification: procedural complications and one-year clinical outcomes.Front.Cardiovasc.Med.12:1599091.Doi: 10.3389/fcvm.2025.1599091.
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