Optical coherence tomography assessment of a new dedicated bifurcation stent

Pawel Tyczynski, Giuseppe Ferrante, Neville Kukreja, Cristina Moreno-Ambroj, Peter Barlis, Nandakumar Ramasami, Ranil De Silva, Kevin Beatt, Carlo Di Mario

Research output: Contribution to journalArticlepeer-review

Abstract

Aims: Dedicated bifurcation stents should facilitate deployment and improve coverage of bifurcational lesions. We used optical coherence tomography (OCT) to assess bifurcation lesions treated with a dedicated stent implanted in the side branch (SB) in conjunction with drug eluting stents in the main vessel (MV) in a culotte-like fashion. Methods and results: Nine patients treated with the Tryton stent underwent postprocedural OCT examination. Total percent of malapposed struts per patient was 18.1±8.7%. The longitudinal distribution of the percent of malapposed struts per patient showed that the prevalence of malapposed struts was significantly higher at the level of the bifurcation (33.3%), than in both the proximal segment and the distal segment (18.5% and 9.8%, respectively, p=0.011). When the bifurcation was divided into two halves (opposite SB and toward SB), the highest percent of malapposed struts was toward the SB (47.6%). Also the wall-strut distance for malapposed struts was significantly higher in the bifurcation half toward the SB than in the proximal and the distal segment. Conclusions: Malapposed struts are frequent in bifurcations despite the use of a dedicated stent. The highest frequency and largest vessel wall-stent strut distance are observed in the bifurcation half toward the SB.

Original languageEnglish
Pages (from-to)544-551
Number of pages8
JournalEuroIntervention
Volume5
Issue number5
DOIs
Publication statusPublished - Nov 2009

Keywords

  • Bifurcation
  • Optical coherence tomography
  • Percutaneous coronary intervention
  • Tryton

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Medicine(all)

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