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Kim, Hong, Cho, Rhee, Song, Lee, Kang, Song, Kim, Park, and Park: Long-term Outcome of Minor Plaque Prolapsed within Stents Documented with Intravascular Ultrasound
Original Article
Korean Circulation Journal

Korean Circulation Journal 2001; 31(2): 166-172.

Published online: 28 February 2001

DOI: https://doi.org/10.4070/kcj.2001.31.2.166

Long-term Outcome of Minor Plaque Prolapsed within Stents Documented with Intravascular Ultrasound

June Hong Kim, Myeong Ki Hong, Sung Tae Cho, Kyoung Seok Rhee, Jong Min Song, Cheol Whan Lee, Duk Hyun Kang, Jae Kwan Song, Jae Joong Kim, Seong Wook Park, Seung Jung Park

The Heart Center, Chonnam National University Hospital, Kwangju, Korea.

Copyright © 2001 The Korean Society of Circulation

Abstract

Background

The direct relationship between minor plaque prolapsed within stents and late in-stent restenosis is unknown. Therefore, we evaluated the impact of minor plaque prolapse on late angiographic in-stent restenosis.

Materials and Methods

Intravascular ultrasound (IVUS) guided single-coronary stenting was successfully performed in 384 consecutive patients with 407 native coronary lesions. Six-month follow-up angiogram was performed in 315 patients (82.0%) with 334 lesions (82.1%). Minor plaque prolapsed within stent occurred in 75 of 334 lesions (22.5%). Results were evaluated using angiographic and IVUS methodology.

Results

The development of minor plaque prolapse was significantly associated with infarct-related artery (p=.000) and smaller pre-intervention minimal lumen diameter (p=.001). The overall angiographic restenosis rate was 23.1% (77/ 334); 21.3% (16/75) in the lesions with plaque prolapse vs. 23.6% (61/259) in the lesions without plaque prolapse (p=.806).

Conclusion

Minor plaque prolapsed within stents might not be associated with late angiographic in-stent restenosis.

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