Additive effect of multiple high-risk coronary artery segments on patient outcomes: LRP Study sub-analysis.

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Citation: Cardiovascular Revascularization Medicine. 2022 Aug 06PMID: 36058829Institution: MedStar Heart & Vascular Institute | MedStar Washington Hospital CenterDepartment: Interventional Cardiology FellowshipForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: IN PROCESS -- NOT YET INDEXEDYear: 2022ISSN:
  • 1878-0938
Name of journal: Cardiovascular revascularization medicine : including molecular interventionsAbstract: BACKGROUND: The Lipid Rich Plaque (LRP) Study established the association between high volume of lipidic content (maximum Lipid Core Burden Index [maxLCBI4mm] >400) in the coronary arteries and subsequent non-culprit major adverse cardiac events (NC-MACE). This analysis sought to assess the clinical impact of more than one lipid-rich plaque in the coronary tree.CLINICAL TRIAL REGISTRATION: The Lipid-Rich Plaque Study (LRP), https://clinicaltrials.gov/ct2/show/NCT02033694, NCT02033694. Copyright © 2022 Elsevier Inc. All rights reserved.CONCLUSION: There is a stepwise increased risk of all-cause death, cardiac death, any revascularization, and NC-MACE according to the number of coronary segments with maxLCBI4mm > 400. In contrast, maxLCBI4mm = 0 results in a low event rate.METHODS: The LRP patient population was divided into four cohorts: 1) patients with all segments with maxLCBI4mm = 0; 2) patients with all coronary segments maxLCBI4mm < 400, but >0; 3) patients with 1 segment maxLCBI4mm > 400; and 4) patients with 2+ coronary segments with maxLCBI4mm > 400. Baseline characteristics, plaque-level characteristics, and follow-up outcomes were described.RESULTS: Among 1550 patients, only 3.2 % had all segments with maxLCBI4mm = 0; 65.1 % had segments with maxLCBI4mm > 0 but <400; 22.5 % had one segment with maxLCBI4mm > 400; and 9.5 % had 2+ coronary segments with maxLCBI4mm > 400. Distribution within the coronary tree (one versus multiple arteries) did not differ. Overall, 1269 patients were allocated to follow-up (per study design). The composite of all-cause death, cardiac death, any revascularization, and NC-MACE was statistically higher in patients with 1 segment maxLCBI4mm > 400 and numerically even higher in patients with 2+ segments with maxLCBI4mm > 400. Patients with maxLCBI4mm = 0 had no events within two years.All authors: Case BC, Di Mario C, Garcia-Garcia HM, Medranda GA, Mintz GS, Shea C, Torguson R, Waksman R, Zhang CFiscal year: FY2023Digital Object Identifier: Date added to catalog: 2022-10-20
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Journal Article MedStar Authors Catalog Article 36058829 Available 36058829

BACKGROUND: The Lipid Rich Plaque (LRP) Study established the association between high volume of lipidic content (maximum Lipid Core Burden Index [maxLCBI4mm] >400) in the coronary arteries and subsequent non-culprit major adverse cardiac events (NC-MACE). This analysis sought to assess the clinical impact of more than one lipid-rich plaque in the coronary tree.

CLINICAL TRIAL REGISTRATION: The Lipid-Rich Plaque Study (LRP), https://clinicaltrials.gov/ct2/show/NCT02033694, NCT02033694. Copyright © 2022 Elsevier Inc. All rights reserved.

CONCLUSION: There is a stepwise increased risk of all-cause death, cardiac death, any revascularization, and NC-MACE according to the number of coronary segments with maxLCBI4mm > 400. In contrast, maxLCBI4mm = 0 results in a low event rate.

METHODS: The LRP patient population was divided into four cohorts: 1) patients with all segments with maxLCBI4mm = 0; 2) patients with all coronary segments maxLCBI4mm < 400, but >0; 3) patients with 1 segment maxLCBI4mm > 400; and 4) patients with 2+ coronary segments with maxLCBI4mm > 400. Baseline characteristics, plaque-level characteristics, and follow-up outcomes were described.

RESULTS: Among 1550 patients, only 3.2 % had all segments with maxLCBI4mm = 0; 65.1 % had segments with maxLCBI4mm > 0 but <400; 22.5 % had one segment with maxLCBI4mm > 400; and 9.5 % had 2+ coronary segments with maxLCBI4mm > 400. Distribution within the coronary tree (one versus multiple arteries) did not differ. Overall, 1269 patients were allocated to follow-up (per study design). The composite of all-cause death, cardiac death, any revascularization, and NC-MACE was statistically higher in patients with 1 segment maxLCBI4mm > 400 and numerically even higher in patients with 2+ segments with maxLCBI4mm > 400. Patients with maxLCBI4mm = 0 had no events within two years.

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