Sizes of Cypher drug eluting stent marketed by Cordis
| Stent calibre (mm) | ||||||
|---|---|---|---|---|---|---|
| Stent length (mm) | 2.25 | 2.5 | 2.75 | 3 | 3.5 | 4 |
| Bold figures indicate stent sizes which should be considered for implantation in place of bare stents if the desired restenosis threshold is 15%. As can be seen, these only comprise seven sizes, of which two (3 × 18 mm and 3 × 23 mm) are required only for diabetics. The figures outside the parentheses are the per cent of drug eluting stents as a proportion of all stents used (total=18% for a 15% restenosis threshold). The figures in parentheses are the per cent of all the Cypher stents (total=100%). | ||||||
| *Insufficient stents of this size are implanted to make it worthwhile obtaining this size of Cypher. | ||||||
| †Restenosis rate <15%, so no Cypher is necessary. Equivalent numbers for any desired restenosis threshold (for example, 10% or 5%) can be constructed by the reader from table 1. | ||||||
| 8 | * | † | † | † | † | † |
| 13 | * | 5.8 (32) | † | † | † | † |
| 18 | * | 2.3 (13) | 3.2 (18) | 2.2 (12) | † | † |
| 23 | * | * | 0.2 (1) | 0.2 (1) | † | † |
| 28 | * | * | * | 4.1 (23) | *† | *† |
| 33 | * | * | * | * | *† | *† |