STENTY WEWNATRZWIENCOWE. ANGIOGRAFICZNA I ULTRASONOGRAFICZNA OCENA PO WSZCZEPIENIU I W BADANIACH ODLEGLYCH

Translated title of the contribution: Angiographic and ultrasonographic assessment of intracoronary stents immediately after implantation and during follow-up

J. Kubica, F. Marsico, A. Sukiennik, S. DeServi, E. Bramucci, L. Angoli, G. Specchia

Research output: Contribution to journalArticle

Abstract

Introduction of intracoronary stents to the clinical practise improved treatment of complications of percutaneous transluminal coronary angioplasty (PTCA) and reduced restenosis rate. The purpose of the present study was to assess the long-term effectiveness of the Palmaz-Schatz stent implantation following coronary dissection after PTCA in 21 patients, and to compare the accuracy of quantitative coronary angiography (QCA) and intravascular ultrasound (IVUS) in assessment of coronary flow immediately after stent implantation and 6-8 months later, during follow-up. Stent implantation was successful in all patients. The IVUS revealed asymmetric deployment of stent in 4 (19%) patients. At the follow-up visit, angigraphically diagnosed restenosis was found in 7 (33%) patients: lumen diameter (LD) decreased by 0.75 ± 0.18 mm (p2 (p2) and by the elastic recoil and stent collapse (decrease of LD by 0.16 ± 0.08 mm and LA by 0.86 ± 0.32 mm2). The results of QCA and IVUS were similar immediately after stent implantation, however, at the follow-up assessment the LD and LA values were significantly higher using QCA compared with IVUS measurements. In conclusion, (1) stent implantation is a highly effective method for treatment of coronary dissections complicating PTCA; (2) endoluminal proliferation is a predominant mechanism of restenosis, whereas stent collapse plays a minor role in this process; and (3) IVUS is better than QCA for monitoring stent implantation and for stent assessment during follow-up.

Original languagePolish
Pages (from-to)502-507
Number of pages6
JournalKardiologia polska.
Volume45
Issue number12
Publication statusPublished - 1996

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Keywords

  • Intracoronary stent
  • Intravascular ultrasound
  • Quantitative angiography

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Kubica, J., Marsico, F., Sukiennik, A., DeServi, S., Bramucci, E., Angoli, L., & Specchia, G. (1996). STENTY WEWNATRZWIENCOWE. ANGIOGRAFICZNA I ULTRASONOGRAFICZNA OCENA PO WSZCZEPIENIU I W BADANIACH ODLEGLYCH. Kardiologia polska., 45(12), 502-507.