Int J Angiol 2009; 18(1): 22-24
DOI: 10.1055/s-0031-1278317
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© Georg Thieme Verlag KG Stuttgart · New York

A novel method of coronary stent sizing using intravascular ultrasound: Safety and clinical outcomes

Christopher B Wong, Norman D Hansen
  • Conroe Regional Medical Center, Conroe, Texas, USA
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Publikationsdatum:
28. April 2011 (online)

Abstract

OBJECTIVES: The use of intravascular ultrasound (IVUS) in guiding coronary stenting has increased in recent years. The feasibility, safety and clinical outcomes of a novel method of sizing coronary stents using IVUS have not been established. The main end points of the current study are the incidence of acute and short-term complications, and the need for target vessel revascularization at six months.

METHODS: Eighty-six patients underwent coronary stenting using IVUS imaging during the procedure. The optimal size of the stents was determined by using a novel method (the 'aggressive IVUS method'), ie, measuring the media-to-media dimensions of the coronary vessels at the site of the lesions using IVUS. A six-month follow-up chart review was performed following the initial stenting.

RESULTS: At six months, there were two noncardiac deaths in the group. There were no acute, subacute or late stent thromboses. Target vessel revascularization and major adverse cardiac event rates remained low - at 5.8% and 9.3%, respectively. The mean (± SD) IVUS-derived coronary stent size (3.89±0.98 mm) using the aggressive IVUS method was significantly different from the mean IVUS-derived coronary stent size (3.46±0.96 mm) using the 'traditional IVUS method'.

CONCLUSION: Aggressive sizing of the coronary stents by IVUS guidance is feasible and safe, and is associated with a favourable clinical outcome.