PMID- 27482258 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160802 LR - 20201001 IS - 1738-5520 (Print) IS - 1738-5555 (Electronic) IS - 1738-5520 (Linking) VI - 46 IP - 4 DP - 2016 Jul TI - Multimodality Intravascular Imaging Assessment of Plaque Erosion versus Plaque Rupture in Patients with Acute Coronary Syndrome. PG - 499-506 LID - 10.4070/kcj.2016.46.4.499 [doi] AB - BACKGROUND AND OBJECTIVES: We assessed plaque erosion of culprit lesions in patients with acute coronary syndrome in real world practice. SUBJECTS AND METHODS: Culprit lesion plaque rupture or plaque erosion was diagnosed with optical coherence tomography (OCT). Intravascular ultrasound (IVUS) was used to determine arterial remodeling. Positive remodeling was defined as a remodeling index (lesion/reference EEM [external elastic membrane area) >1.05. RESULTS: A total of 90 patients who had plaque rupture showing fibrous-cap discontinuity and ruptured cavity were enrolled. 36 patients showed definite OCT-plaque erosion, while 7 patients had probable OCT-plaque erosion. Overall, 26% (11/43) of definite/probable plaque erosion had non-ST elevation myocardial infarction (NSTEMI) while 35% (15/43) had ST elevation myocardial infarction (STEMI). Conversely, 14.5% (13/90) of plaque rupture had NSTEMI while 71% (64/90) had STEMI (p<0.0001). Among plaque erosion, white thrombus was seen in 55.8% (24/43) of patients and red thrombus in 27.9% (12/43) of patients. Compared to plaque erosion, plaque rupture more often showed positive remodeling (p=0.003) with a larger necrotic core area examined by virtual histology (VH)-IVUS, while negative remodeling was prominent in plaque erosion. Overall, 65% 28/43 of plaque erosions were located in the proximal 30 mm of a culprit vessel-similar to plaque ruptures (72%, 65/90, p=0.29). CONCLUSION: Although most of plaque erosions show nearly normal coronary angiogram, modest plaque burden with negative remodeling and an uncommon fibroatheroma might be the nature of plaque erosion. Multimodality intravascular imaging with OCT and VH-IVUS showed fundamentally different pathoanatomic substrates underlying plaque rupture and erosion. FAU - Kwon, Jee Eun AU - Kwon JE AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Lee, Wang Soo AU - Lee WS AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Mintz, Gary S AU - Mintz GS AD - Cardiovascular Research Foundation, New York, USA. FAU - Hong, Young Joon AU - Hong YJ AD - Chonnam National University Hospital, Gwangju, Korea. FAU - Lee, Sung Yun AU - Lee SY AD - Inje University Ilsan Paik Hospital, Koyang, Korea. FAU - Kim, Ki Seok AU - Kim KS AD - Jeju National University Hospital, Jeju, Korea. FAU - Hahn, Joo-Yong AU - Hahn JY AD - Samsung Medical Center, Seoul, Korea. FAU - Kumar, Kaup Sharath AU - Kumar KS AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Won, Hoyoun AU - Won H AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Hyeon, Seong Hyeop AU - Hyeon SH AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Shin, Seung Yong AU - Shin SY AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Lee, Kwang Je AU - Lee KJ AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Kim, Tae Ho AU - Kim TH AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Kim, Chee Jeong AU - Kim CJ AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. FAU - Kim, Sang Wook AU - Kim SW AD - Heart Research Institute, Cardiovascular-Arrhythmia Center, College of Medicine, Chung-Ang University Hospital, Seoul, Korea. LA - eng PT - Journal Article DEP - 20160721 PL - Korea (South) TA - Korean Circ J JT - Korean circulation journal JID - 101247141 PMC - PMC4965428 OTO - NOTNLM OT - Acute coronary syndrome OT - Atherosclerotic plaque OT - Optical coherence tomography COIS- The authors have no financial conflicts of interest. EDAT- 2016/08/03 06:00 MHDA- 2016/08/03 06:01 PMCR- 2016/07/01 CRDT- 2016/08/03 06:00 PHST- 2015/08/11 00:00 [received] PHST- 2015/11/12 00:00 [revised] PHST- 2015/12/24 00:00 [accepted] PHST- 2016/08/03 06:00 [entrez] PHST- 2016/08/03 06:00 [pubmed] PHST- 2016/08/03 06:01 [medline] PHST- 2016/07/01 00:00 [pmc-release] AID - 10.4070/kcj.2016.46.4.499 [doi] PST - ppublish SO - Korean Circ J. 2016 Jul;46(4):499-506. doi: 10.4070/kcj.2016.46.4.499. Epub 2016 Jul 21.