"Late Clinical Outcomes of Cordis Tantalum Coronary Stenting without Anticoagulation : Validation of Angiographic Measurement and In-stent Restenosis by Intravascular Ultrasound"
Korean Circulation Journal
;
: 971-978, 1997.
Article
in Korean
| WPRIM
| ID: wpr-165009
ABSTRACT
BACKGROUND:
The Cordis coronary stent is a flexible, balloon expandable, radiopaque tantalum stent. Previous reports have shown excellent initial clinical outcomes. To our knowledge, there is no report of the long-term clinical outcomes. The intensely radiopaque tantalum may interfere with the angiographic assessment. We intended to evaluate long-term clinical and angiographic restenosis rates after successful implantation of the Cordis tantalum coronary stent.METHOD:
Two hundred and eighty-five consecutive patients with 300 lesions were treated with 366 Cordis stents. An angiographic follow-up substudy was performed in 190 lesions ; 6 month follow-up angiograms were available in 167(88%). At follow-up, intravascular ultrasound(IVUS) was performed to (1) determine the pattern of restenosis and (2) to validate the quantitative coronary angiographic(QCA) caliper measurements.RESULTS:
IVUS and QCA caliper measurement of minimal luminal diameter correlated reliably (r=0.767, p<0.001). The QCA analysis detected diffuse in-stent restenosis more reliably than focal in-stent restenosis(p<0.01). The overall angiographic restenosis rate was 19%, The factors affecting angiographic restenosis were post-stent minimum lumen diameter, type C lesion, and reference vessel size.CONCLUSION:
We concluded 1) The angiographic restenosis rate of Cordis stent was comparable to that of other slotted-tube stent. 2) The QCA caliper method is reliable for the assessment of Cordis in-stent restenosis, especially in the detection of diffuse in-stent restenosis. However, QCA may miss focal in-stent restenosis only detectable by IVUS
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenobarbital
/
Tantalum
/
Coronary Artery Disease
/
Stents
/
Follow-Up Studies
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Korean Circulation Journal
Year:
1997
Type:
Article
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