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. Author manuscript; available in PMC: 2015 Jan 14.
Published in final edited form as: Circulation. 2013 Oct 25;129(2):211–223. doi: 10.1161/CIRCULATIONAHA.113.001790

Figure 7.

Figure 7

Stent fracture in CoCr-EES. (A) Bar graph showing observed frequency of overall fracture, grade V fracture (acquired transection with gap in the stent body), and fracture-related thrombosis or restenosis, in CoCr-EES versus SES and PES. The analyses include duration of implant as a covariate. Multiple-comparison threshold is used as in Table 1. (B to D) A case of grade V CoCr-EES fracture showing restenosis at fracture site (Case #3 in Table 3). Radiograph of left obtuse marginal branch (B) shows a single CoCr-EES with multiple grade V fractures, which are highlighted in (C) (arrows=fracture sites). (D) Histologic sections of the fracture site (corresponding with [a] to [e] in panel C) showing focal restenosis. Note single stent struts (*) in the most severely narrowed section in b.