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- W2034302318 abstract "Abstract Background and objective Endovascular procedures for heart valve replacement provide an alternative to open surgery. It might be necessary to remove the native valve before implantation of a new valve mounted in a collapsible stent. The aim of this study was to evaluate the feasibility of using an Er:YAG laser for the resection of human calcified valves and to quantify this process. Materials and methods A commercially available Er:YAG laser with a specially designed fiber coupling device and fiber tip was used to cut calcified aortic and mitral valve leaflets (n=12) in vitro . Light and electron microscopic analyses of the debris were performed. Results Cutting velocities of up to 15.3 mm per minute were achieved with an average of 7.67±4.28 mm per minute. The cutting efficiency depended on the rate of tissue calcification. The debris particle size ranged from smaller than 10 μm to 1 mm. Conclusions Calcified heart valves can be cut using an Er:YAG laser system in vitro . Nonetheless, cutting times were rather long considering a future in vivo use of this technique." @default.
- W2034302318 created "2016-06-24" @default.
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- W2034302318 date "2007-06-01" @default.
- W2034302318 modified "2023-09-23" @default.
- W2034302318 title "Er:YAG laser-assisted resection of human calcified heart valves" @default.
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- W2034302318 doi "https://doi.org/10.1016/j.mla.2006.09.001" @default.
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