A unique stenosis in saphenous vein graft visualized by optical coherence tomography
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- 作者：Yorihiko Koeda (1)
Tomonori Itoh (1)
Tetsuya Fusazaki (1)
Motoyuki Nakamura (2)
Yoshihiro Morino (1) - 关键词：Optical coherence tomography ; Saphenous vein graft ; Venous valve ; Coronary artery bypass graft
- 刊名：Heart and Vessels
- 出版年：2014
- 出版时间：March 2014
- 年：2014
- 卷：29
- 期：2
- 页码：278-281
- 全文大小：1,220 KB
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Tomonori Itoh (1)
Tetsuya Fusazaki (1)
Motoyuki Nakamura (2)
Yoshihiro Morino (1)
1. Division of Cardiology, Department of Internal Medicine and Memorial Heart Center, Iwate Medical University School of Medicine, 1-2-1 Chuo-dori, Morioka, Iwate, 020-8505, Japan
2. Division of Cardiovascular Medicine, Nephrology and Endocrinology, Department of Internal Medicine, School of Medicine, Iwate Medical University, 1-2-1 Chuo-dori, Morioka, Iwate, 020-8505, Japan - ISSN：1615-2573
文摘
We present a case of a unique stenosis in a 12-year-old saphenous vein graft (SVG), to the right coronary artery, which was visualized by optical coherence tomography (OCT), before percutaneous coronary intervention. The patient was an 80-year-old man in whom the stenosis was documented by area-detector coronary computed tomography. OCT imaging demonstrated that the culprit lesion was a venous valve containing a thrombus before preintervention imaging. Coronary stenting was performed with a distal protection device, and pathologic examination of the aspirate verified the OCT findings. Coronary angiography 12 years previously, just after coronary artery bypass surgery (CABG), had shown a completely normal SVG without any suspicion of a venous valve. These OCT images suggested the possibility that the culprit lesion was an “upside down-venous valve that was not visualized by angiography just after surgery, but could be a cause of late SVG stenosis following CABG. OCT imaging is very useful for clarifying the etiology of the stenosis in cases of ambiguous angiographic lesions.