Impact of Lipidic Plaque on In-Stent and Stent Edge-Related Events After PCI in Myocardial Infarction: A PROSPECT II Substudy

Lars Kjøller-Hansen*, Akiko Maehara, Henning Kelbæk, Mitsuaki Matsumura, Michael Maeng, Thomas Engstrøm, Ole Fröbert, Jonas Persson, Rune Wiseth, Alf Inge Larsen, Lisette Okkels Jensen, Jan Erik Nordrehaug, Elmir Omerovic, Claes Held, Stefan James, Gary S Mintz, Ziad A Ali, Gregg W Stone, David Erlinge

*Corresponding author af dette arbejde
3 Citationer (Scopus)

Abstract

BACKGROUND: Lipid content in untreated nonobstructive coronary artery lesions is associated with adverse clinical outcomes, and residual in-stent or stent edge lipid may worsen outcomes after percutaneous coronary intervention (PCI).

METHODS: Near-infrared spectroscopy-intravascular ultrasound was performed before and after PCI in patients with myocardial infarction. We evaluated the impact of lipid assessed by near-infrared spectroscopy (maximal lipid core burden index over 4 mm [maxLCBI4mm]) along with intravascular ultrasound information including residual plaque burden on in-stent or edge-related major adverse cardiac events (MACE) in de novo PCI-treated culprit coronary artery lesions. The primary end point was culprit lesion-related MACE (CL-MACE), defined as cardiac death, myocardial infarction, or unstable or progressive angina either requiring revascularization or with rapid lesion progression and classified as in-stent or stent edge-related.

RESULTS: During a median follow-up of 3.8 years, 25 CL-MACE (11 stent edge-related, 13 in-stent, and 1 in-lesion without a stent) occurred in 1041 PCI-treated lesions in 768 patients. Pre-PCI or post-PCI measures of lipid content were not related to in-stent CL-MACE. However, stent edge-related CL-MACE was increased if both the post-PCI stent edge maxLCBI4mm was greater than the upper quartile (108.7) and the stent edge plaque burden was >50% (adjusted odds ratio, 4.11 [95% CI, 1.12-15.2]; P=0.03).

CONCLUSIONS: In PROSPECT II (Providing Regional Observations to Study Predictors of Events in the Coronary Tree), CL stent implantation leaving behind greater stent edge-related lipid and uncovered plaque burden was associated with an increased risk of stent edge-related CL-MACE during follow-up. In contrast, CL lipid content was not related to in-stent CL-MACE.

REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT02171065.

OriginalsprogEngelsk
TidsskriftCirculation. Cardiovascular interventions
Vol/bind17
Udgave nummer10
Sider (fra-til)e014215
Antal sider10
ISSN1941-7640
DOI
StatusUdgivet - okt. 2024

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