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Shortening the stent length reduces restenosis with bare metal stents: matched pair comparison of short stenting and conventional stenting
  1. U Dietz,
  2. N Holz,
  3. C Dauer,
  4. H Lambertz
  1. Deutsche Klinik für Diagnostik, Wiesbaden, Germany
  1. Correspondence to:
    Dr Ulrich Dietz
    Deutsche Klinik für Diagnostik, Aukammallee 33, D-65191 Wiesbaden, Germany; dietz.kardio{at}


Objective: To investigate the effect of reducing stent length on the rate of target lesion restenosis.

Design: In a prospective investigation, acute and long term results of a short stenting procedure were analysed by quantitative angiography and compared with results of a conventional stenting procedure selected according to a matched pairs analysis.

Patients: Short stents were implanted in 400 consecutive patients with 464 lesions and conventional stents in 430 patients. Demographic and lesion characteristics were comparable between groups.

Interventions: In short stenting, the shortest stent length to cover only segments with > 30% reduction in vessel diameter was used. In conventional stenting, full coverage of a stenotic vessel segment was intended.

Main outcome measures: The mean stent lengths of the short stent group (9.8 (4) mm) and the conventional stent group (16.3 (7) mm) differed significantly (p < 0.0001); all other procedural and angiographic parameters were the same. Procedural success was similar for both groups. Control angiography after six months was conducted in 92% of patients.

Results: Short stenting resulted in both less restenosis (68 of 431 (15.8%)) than conventional stenting (93 of 381 (24.4%), p  =  0.007) and less late lumen loss (0.6 (0.6) mm v 0.75 (0.5) mm, p  =  0.0001). Residual stenosis (< 45%) in adjacent vessel segments after short stenting did not affect the restenosis rate. Only the implantation of a ⩽ 9 mm stent predicted the absence of restenosis in a multivariate analysis.

Conclusion: Shortening the length of bare metal stents reduces the restenosis rate as compared with conventional stenting.

  • DES, drug eluting stents
  • MACE, major adverse cardiac events
  • PTCA, percutaneous transluminal coronary angioplasty
  • TVR, target vessel revascularisation
  • stent
  • balloon dilatation
  • restenosis

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  • Published Online First 9 May 2005