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Randomization (n: 424)

Eight M onths A ngiographic F ollow-up in P atients R andomized to Crush or Culotte S tenting of C oronary A rtery B ifurcation L esions The Nordic Bifurcation Stent Technique Study.

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Randomization (n: 424)

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  1. Eight Months Angiographic Follow-upin Patients Randomized to Crush or CulotteStenting of Coronary Artery Bifurcation LesionsThe Nordic Bifurcation Stent Technique Study PålGunnes, MattiNiemela, Kari Kervinen, AndrejsErglis, IndulisKumsars, Jens F Lassen, Michael Mæng, Jan Skov Jensen, Anders Galløe, TerjeSteigen, Jan Ravkilde, TimoMakikallio, Kari Ylitalo, Inga Narbute, Evald Christiansen, Lars Krusell, SindreStavnes, UlrikAbildgaard, Peter Riis Hansen, Jan Mannsverk, Thor Trovik, Per Thayssen, Steffen Helqvist, SailaVikman, Rune Wiseth, Jens Aarøe, Leif Thuesen For the Nordic-Baltic PCI Study Group

  2. Randomization (n: 424) CULOTTE (n: 215) CRUSH (n: 209) n: 424 (100%) Clinical Follow up, 6 months (n: 215) Clinical Follow up, 6 months (n: 209) n: 424 (100%) Stratification at randomization Scheduled Angiographic Follow up, 8 months (n:189) Scheduled Angiographic Follow up, 8 months (n: 184) n: 373 (88%) Angiographic FU available (n: 160) Angiographic FU available (n: 164) n: 324 (87%)

  3. Rate of mainvesseland/or side branch in-lesion diameter stenosis >50% at 8 monthsfollow-up % 12.1 p=0.10 6.6

  4. Rate of main vessel and/or side branch in-stent diameter stenosis >50% at 8 months follow-up % 10.5 p=0.046 4.5

  5. Rate of mainvessel in-lesion diameter stenosis >50% at 8 monthsfollow-up % p=0.19 4.7 2.0

  6. Rate of side branch in-lesion diameter stenosis >50% at 8 months follow-up % p=0.10 9.2 4.5

  7. Localization of in-stent restenosisat 8 months follow-up CRUSH CULOTTE 0.0% 0.0% 3.8%* 9.8%* 0.6% 2.0% * p=0.04

  8. Conclusion • CRUSH and CULOTTE bifurcation stenting using sirolimus eluting stents were associated with low rates of restenosis at eight months angiographic follow-up • The few restenoses were primarily located in side branches treated with the CRUSH technique • The CULOTTE bifurcation stenting technique was associated with a single digit restenosis rate and may be preferred in suitable bifurcation anatomies • Extended follow-up needed to evaluate the safety of the investigated two-stent bifurcation techniques

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