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Preparation of the “flying V” inner-surface denuded guidewire. (A) Two to three millimeters of guidewire is scraped noncircumferentially immediately distal to the locked Piggyback. (B) Using the back end of the scalpel, the guidewire is kinked against fingers behind a raised towel. (C) Noncircumferential inner-surface denudation (arrow) near the Piggyback in a “flying V” configuration.
