Because of the inadequate lesion preparation, a decision was made to proceed with rotablation. The Fielder wire was exchanged for a rota floppy wire and a temporary pacing wire was inserted. Rotablation with a 1.5 mm burr (Fig. 23.2, Video 23.3) was performed. Resistance was encountered on advancing the burr and the proximal RCA rotawire was inadvertently sheared off (Fig. 23.3, Videos 23.3 and 23.4). The ostium of the RCA was ballooned to facilitate access of a snare, and several unsuccessful attempts to snare the proximal end of the rotawire with a 4 mm Gooseneck snare (Videos 23.5 and 23.6) were made. Two additional guide-wires were introduced in an attempt to retrieve the fractured wire with the twisting wire technique (Figs. 23.4 and 23.5, and Videos 23.7 and 23.8) but this was unsuccessful.