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- W2022239417 abstract "Platelet activation is an important determinant of acute outcomes of percutaneous intervention. The objective of this study was to assess the effect of rotational atherectomy on platelet activation in an in vitro model. Freshly collected heparinized porcine blood was exposed to a 2.0-mm Rotablator® burr rotating at one of three speeds: 180,000, 140,000, or 0 rpm. The specimens were analyzed immediately for concentration and size of platelet aggregates and plasma-free hemoglobin. There were significantly more platelet aggregates of > 20-μm diameter at higher speeds (7,434 ± 2,193 at 180,000, vs. 2,269 ± 627 at 140,000, vs. 633 ± 258 aggregates/ml at 0 rpm; P< 0.001). Plasma-free hemoglobin, a simple measure of cell damage, decreased with decreasing rotational speed (429 ± 168 mg/dl at 180,000, vs. 88 ± 44 mg/dl at 140,000, vs. 9 ± 9 mg/dl at 0 rpm; P< 0.0001). In vitro, platelet activation decreases with decreasing burr speed, suggesting that the use of the Rotablator® system at its minimum approved speed (140,000 rpm) could prove clinically beneficial. Cathet. Cardiovasc. Diagn. 45:208–214, 1998. © 1998 Wiley-Liss, Inc." @default.
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- W2022239417 date "1998-10-01" @default.
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- W2022239417 title "Analysis of low-speed rotational atherectomy for the reduction of platelet aggregation" @default.
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- W2022239417 doi "https://doi.org/10.1002/(sici)1097-0304(199810)45:2<208::aid-ccd21>3.0.co;2-f" @default.
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