Predictors of Side Branch Occlusion Immediately after Coronary Stenting: an Intravascular Ultrasound Study
Korean Circulation Journal
;
: 655-665, 2002.
Article
in Korean
| WPRIM
| ID: wpr-167233
ABSTRACT
BACKGROUND AND OBJECTIVES:
Previous studies have indicated that side branch occlusion (SBO) remains a significant problem in coronary bifurcation lesions during percutaneous intervention. SUBJECTS ANDMETHODS:
To evaluate the predictors of SBO by intravascular ultrasound (IVUS), 35 patients (28 males, mean age 56+/-11 years) were studied at their left anterior descending artery (LAD)-diagonal branch (DB) bifurcation lesions, prior to coronary intervention for the measurement of the following plaque characteristics total plaque area (PA), PA of the branch-side semicircle, % area stenosis (%AS) of the LAD, the presence of bull's eye in the DB, the diameter of the vessel and the ostial lumen of the DB, and the LAD-DB angle. SBO was defined as a persistant reduction in the TIMI flow to < OR = 1 by the end of the procedure.RESULTS:
The PA of the branch-side semicircle, the vessel diameter and the ostial lumen diameter of the DB all significantly affected the SBO. The total PA and the %AS of the LAD were not related to the SBO. Multivariate analysis identified that the PA of the branch-side semicircle was the only predictor of SBO (odds ratio 3.2, 95% confidence interval 1.3 to 8.6, p=0.015).CONCLUSION:
It appears that the plaque distribution of LAD is a major determinant of SBO. These findings support the theory that the plaque shift ("snow plow effect") may be the mechanism of the SBO following stenting.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Arteries
/
Stents
/
Multivariate Analysis
/
Ultrasonography
/
Ultrasonography, Interventional
/
Constriction, Pathologic
/
Coronary Stenosis
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Humans
/
Male
Language:
Korean
Journal:
Korean Circulation Journal
Year:
2002
Type:
Article
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