Intravascular Ultrasound Predictors of Side Branch Occlusion in Bifurcation Lesions After Percutaneous Coronary Intervention

Eri Furukawa; Kiyoshi Hibi; Masami Kosuge; Tomoyori Nakatogawa; Noritaka Toda; Takeshi Takamura; Kengo Tsukahara; Jun Okuda; Fumiyuki Ootsuka; Yoshio Tahara; Teruyasu Sugano; Tsutomu Endo; Kazuo Kimura; Satoshi Umemura

doi:10.1253/circj.69.325

Clinical Investigation

Intravascular Ultrasound Predictors of Side Branch Occlusion in Bifurcation Lesions After Percutaneous Coronary Intervention

Eri Furukawa, Kiyoshi Hibi, Masami Kosuge, Tomoyori Nakatogawa, Noritaka Toda, Takeshi Takamura, Kengo Tsukahara, Jun Okuda, Fumiyuki Ootsuka, Yoshio Tahara, Teruyasu Sugano, Tsutomu Endo, Kazuo Kimura, Satoshi Umemura

Author information

Eri Furukawa
Cardiovascular Division, Yokohama City University Medical Center
Kiyoshi Hibi
Cardiovascular Division, Yokohama City University Medical Center
Masami Kosuge
Cardiovascular Division, Yokohama City University Medical Center
Tomoyori Nakatogawa
Cardiovascular Division, Yokohama City University Medical Center
Noritaka Toda
Cardiovascular Division, Yokohama City University Medical Center
Takeshi Takamura
Cardiovascular Division, Yokohama City University Medical Center
Kengo Tsukahara
Cardiovascular Division, Yokohama City University Medical Center
Jun Okuda
Cardiovascular Division, Yokohama City University Medical Center
Fumiyuki Ootsuka
Cardiovascular Division, Yokohama City University Medical Center
Yoshio Tahara
Cardiovascular Division, Yokohama City University Medical Center
Teruyasu Sugano
Cardiovascular Division, Yokohama City University Medical Center
Tsutomu Endo
Cardiovascular Division, Yokohama City University Medical Center
Kazuo Kimura
Cardiovascular Division, Yokohama City University Medical Center
Satoshi Umemura
Second Department of Internal Medicine, Yokohama City University Medical School

Keywords: Atherosclerosis, Coronary angioplasty, Ultrasonics

JOURNAL FREE ACCESS

2005 Volume 69 Issue 3 Pages 325-330

DOI https://doi.org/10.1253/circj.69.325

Details

Abstract

Background Percutaneous coronary intervention (PCI) of bifurcation lesion has been associated with a low success rate and a high incidence of procedural complications, including side branch occlusion and myocardial infarction. It remains controversial whether preintervention intravascular ultrasound (IVUS) findings can help to identify side branches likely to occlude after PCI of bifurcation lesions. Methods and Results From our IVUS database we identified 81 bifurcation lesions in 72 patients. Side branches were classified into 2 groups: group 1 had ostial side branch stenosis due to atherosclerotic plaque only in the main vessel (n=61), and group 2 had plaque truly involved in the side branch ostium (n=20). There was no significant difference between the 2 groups in the extent of ostial stenosis as assessed by angiography. After PCI, 7 side branches occluded in group 2, compared with 5 side branches occluded in group 1 (35% vs 8%, p=0.003). Conclusion Ostial plaque distribution as assessed by IVUS may be one of the consistent predictors of side branch occlusion after PCI. (Circ J 2005; 69: 325 - 330)

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