PMC4817202_01
Symplicity Spyral  renal ablation catheter is an overthe- wire system that enables simultaneous quadripolar renal artery ablation.
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F1A
A Symplicity SpyralTM (Medtronic) catheter was then introduced over the guidewire, after removing the straightening tool, resulting in approximately 125 cm of catheter length (Fig. 1B).
Symplicity Spyral  catheter threaded through the multipurpose guiding catheter with right brachial access point.
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F1B
Access to both arteries was readily attained, and 17 and 13 lesions were created in the right and left renal arteries, respectively (Fig. 2).
PMC4817202_02
Bilateral renal artery denervation was successfully performed.
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F2
ThunderTM guide wire (Medtronic). The Spyral catheter was then introduced over the guidewire, after removing the straightening tool, resulting in approximately 125 cm of catheter length (Fig. 3).