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左主干支架

Abstract

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Original Research2016 Feb 1;87(2):232-40.

JOURNAL：Catheter Cardiovasc Interv. Article Link

Impact of intravascular ultrasound on the long-term clinical outcomes in the treatment of coronary ostial lesions

Patel Y, Depta JP, Patel JS et al. Keywords: IVUS-guided PCI; coronary ostial; outcome

ABSTRACT

OBJECTIVES - To evaluate the long-term outcomes of patients with ostial lesions who underwent percutaneous coronary intervention (PCI) with and without the use of intravascular ultrasound (IVUS).


BACKGROUND - A higher rate of adverse cardiac events is associated with PCI of ostial lesions as compared with nonostial disease.


METHODS - From 7/2002 to 8/2010, 225 patients with 233 coronary ostial lesions underwent PCI with (n = 82) and without (n = 143) IVUS guidance. Ostial lesions included both native aorto-ostial or major coronary vessel (left anterior descending, left circumflex, and ramus intermedius) lesions. Clinical outcomes [cardiovascular death, myocardial infarction (MI), and target lesion revascularization (TLR)] at a mean follow-up of 4.2 ± 2.5 years were compared between patients undergoing PCI of an ostial lesion with and without use of IVUS using univariate and propensity score adjusted analyses.


RESULTS - Aorto-ostial lesions (n = 109) comprised 47% of lesions, whereas the remaining lesions (53%) involved major coronary vessels. After propensity score adjustment, IVUS use was associated with lower rates of the composite of cardiovascular death, MI, or TLR (HR 0.54, 95% CI 0.29-0.99; P = 0.04), composite MI or TLR (HR 0.39, 95% CI 0.18-0.83; P = 0.01), and MI (HR 0.31, 95% CI 0.11-0.85; P = 0.02) as compared with no IVUS. The use of IVUS was also associated with a trend towards a lower rate of TLR (HR 0.42, 95% CI 0.17-1.02; P = 0.06).


CONCLUSIONS - PCI of coronary ostial lesions with the use of IVUS was associated with significantly lower rates of adverse cardiac events.


 © 2015 Wiley Periodicals, Inc.

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