Korean Circ J.
2003 Sep;33(9):827-831. 10.4070/kcj.2003.33.9.827.
A Case of Recurrent In-Stent Restenosis with Abundant Proteoglycan Component
- Affiliations
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- 1The Heart Center of Chonnam National University Hospital, Gwangju, Korea. myungho@chollian.net
- 2Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea.
- KMID: 2145629
- DOI: http://doi.org/10.4070/kcj.2003.33.9.827
Abstract
- A percutaneous coronary intervention (PCI) is known to be one of effective methods in the treatment of coronary artery disease. However, restenosis remains a major limitation to a PCI. Although neointimal cell proliferation is suspected to be the major cause of coronary stent restenosis, few histological characterizations of recurrent instent restenosis exist. We report a case of a 61-year-old man suffering from unstable angina due to secondary coronary in-stent restenosis in the proximal left anterior descending artery (LAD). An atherectomized tissue, obtained by a directional coronary atherectomy, showed myxoid tissue, characterized by a few stellate smooth muscle cells in the abundant extracellular matrix, which was blue-colored proteoglycan on modified Movat staining.
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