CRT-44 Multivessel Chronic Total Occlusion Outcomes Can Be Different with Single Vessel Chronic Total Occlusion?
- Cardiovascular Center, Korea University Guro Hospital, Seoul, Korea, Republic of
Background: Chronic
total occlusion (CTO) intervention is still challenging because of the limited
procedural success rate and higher recurrence. It is not clear whether the angiographic
and clinical outcomes may different between patients (pts) with single vessel CTO
(SV-CTO) and multi-vessel CTO (MV-CTO). Methods:
A total of 238 consecutive pts underwent CTO intervention were divided according
to the number of target CTO vessels (SV-CTO: n=220 pts, MV-CTO: n=18 pts). Six-month angiographic and 24-month clinical
outcomes were compared between the two groups. Results: The
baseline clinical characteristics were balanced between the two groups except
that incidence of myocardial infarction (MI, 61.1 vs. 23.6%, p<0.001) and a
lower left ventricular ejection fraction% (LVEF%, 42.0 ± 11.80 vs. 50.28 ±
11.15 p= 0.003) was higher in the MV-CTO group. The overall procedural success
rate was a lower in the MV-CTO group (77.7% vs. 94.0 % p=0.009). Procedural
characteristics and procedure related complications including perforation and
dissection were not different between the two groups. Once the CTO was
successfully treated, the anngiographic outcomes at 6 months and major clinical
outcomes up to 24 months were similar between the two groups (Table).
Conclusions:
Baseline characteristics were worse and
the procedural success rate was lower in the MV-CTO group. However, once the
CTO lesion was successfully recanalyzed, the safety profiles, complications, mid-term angiographic and clinical
outcomes up to 24 months were similar between the two groups. Figures and tables from this article: Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
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