Background: Excessive coronary calcification can lead to adverse outcomes after percutaneous coronary intervention (PCI). We therefore evaluated the impact of coronary calcium score (CCS) measured by multidetector computed tomography (MDCT) on immediate complications of PCI and rate of restenosis.
Methods: We performed a single-center retrospective analysis of 84 patients with coronary stenosis diagnosed by MDCT who underwent PCI. The Agatston method was used to measure total, target-vessel, and segmental (stent deployment site) CCS.
Results: In 108 PCI procedures, 32 lesions (29.5%) were American College of Cardiology/American Heart Association type A, 60 (55.5%) were type B, and 16 (15%) were type C. ANOVA showed significantly higher segmental CCS in type C than in type A lesions (29 ± 51 vs. 214 ± 162; = 0.03). Six patients (7.1%) had periprocedural complications and seven (8.3%) had in-stent restenosis and angina. Mean total, target-vessel, and segmental CCS was significantly higher in complicated than in successful PCI (199 ± 325 vs. 816 ± 624, = 0.001; 92 ± 207 vs. 337 ± 157, = 0.001; and 79 ± 158 vs. 256 ± 142, = 0.003, respectively), but there was no significant difference in CCS between successful PCI and PCI complicated by late restenosis.
Conclusions: CCS measured by MDCT has an important role in predicting early, but not late, complications from PCI.
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| http://dx.doi.org/10.1016/j.jsha.2016.05.002 | DOI Listing |
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