PMID- 30997122 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20210203 LR - 20231006 IS - 2053-3624 (Print) IS - 2053-3624 (Electronic) IS - 2053-3624 (Linking) VI - 6 IP - 1 DP - 2019 TI - Intracoronary near-infrared spectroscopy and the risk of future cardiovascular events. PG - e000917 LID - 10.1136/openhrt-2018-000917 [doi] LID - e000917 AB - OBJECTIVES: The objectives of this study were to investigate if findings by intracoronary near-infrared spectroscopy (NIRS) and intravascular ultrasound (IVUS) are associated with future cardiovascular events and if NIRS can differentiate culprit from non-culprit segments in patients with coronary artery disease. METHODS: The study included 144 patients with coronary artery disease undergoing percutaneous coronary intervention and combined NIRS-IVUS imaging at two Swedish hospitals. The NIRS-derived lipid core burden index (LCBI), the 4 mm segment with maximum LCBI (MaxLCBI(4mm)) and the IVUS-derived maximum plaque burden (MaxPB) were analysed within the culprit segment and continuous 10 mm non-culprit segments of the index culprit vessels. The association with future major adverse cardiovascular and cerebrovascular events (MACCE), defined as all-cause mortality, acute coronary syndrome requiring revascularisation and cerebrovascular events during follow-up was evaluated using multivariable Cox regressions. A receiver operating characteristic (ROC) analysis was performed to test the ability of NIRS to discriminate culprit against non-culprit segments. RESULTS: A non-culprit maxLCBI(4mm) >/=400 (HR: 3.67, 95% CI 1.46 to 9.23, p=0.006) and a non-culprit LCBI >/= median (HR: 3.08, 95% CI 1.11 to 8.56, p=0.031) were both significantly associated with MACCE, whereas a non-culprit MaxPB >/=70% (HR: 0.61, 95% CI 0.08 to 4.59, p=0.63) was not. The culprit segments had larger lipid cores compared with non-culprit segments (MaxLCBI(4mm) 425 vs 74, p<0.001), and the ROC analysis showed that NIRS can differentiate culprit against non-culprit segments (c-statistics: 0.85, 95% CI 0.81 to 0.89). CONCLUSION: A maxLCBI(4mm) >/=400 and LCBI >/= median, assessed by NIRS in non-culprit segments of a culprit artery, were significantly associated with patient-level MACCE. NIRS furthermore adequately discriminated culprit against non-culprit segments in patients with coronary disease. FAU - Karlsson, Sofia AU - Karlsson S AD - Department of Cardiology, Clinical Sciences, Lund University, Skane University Hospital, Lund, Sweden. FAU - Anesater, Erik AU - Anesater E AD - Division of Cardiovascular Medicine, Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden. FAU - Fransson, Klara AU - Fransson K AD - Department of Cardiology, Clinical Sciences, Lund University, Skane University Hospital, Lund, Sweden. FAU - Andell, Pontus AU - Andell P AD - Department of Cardiology, Clinical Sciences, Lund University, Skane University Hospital, Lund, Sweden. FAU - Persson, Jonas AU - Persson J AD - Division of Cardiovascular Medicine, Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden. FAU - Erlinge, David AU - Erlinge D AD - Department of Cardiology, Clinical Sciences, Lund University, Skane University Hospital, Lund, Sweden. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190209 PL - England TA - Open Heart JT - Open heart JID - 101631219 PMC - PMC6443121 OTO - NOTNLM OT - intravascular ultrasound OT - lipid-rich plaques OT - near-infrared spectroscopy OT - vulnerable plaques COIS- Competing interests: None declared. EDAT- 2019/04/19 06:00 MHDA- 2019/04/19 06:01 PMCR- 2019/02/09 CRDT- 2019/04/19 06:00 PHST- 2018/08/23 00:00 [received] PHST- 2018/10/04 00:00 [revised] PHST- 2018/10/04 00:00 [accepted] PHST- 2019/04/19 06:00 [entrez] PHST- 2019/04/19 06:00 [pubmed] PHST- 2019/04/19 06:01 [medline] PHST- 2019/02/09 00:00 [pmc-release] AID - openhrt-2018-000917 [pii] AID - 10.1136/openhrt-2018-000917 [doi] PST - epublish SO - Open Heart. 2019 Feb 9;6(1):e000917. doi: 10.1136/openhrt-2018-000917. eCollection 2019.