Dynamics of vessel wall changes following the implantation of the Absorb everolimus-eluting bioresorbable vascular scaffold: a multi-imaging modality study at 6, 12, 24 and 36 months

Serruys, Patrick W; Onuma, Yoshinobu; Garcia-Garcia, Hector M; Muramatsu, Takashi; van Geuns, Robert-Jan; de Bruyne, Bernard; Dudek, Dariusz; Thuesen, Leif; Smits, Pieter C; Chevalier, Bernard; McClean, Dougal; Koolen, Jacques; Windecker, Stephan; Whitbourn, Robert; Meredith, Ian; Dorange, Cecile; Veldhof, Susan; Hebert, Karine Miquel; Rapoza, Richard and Ormiston, John A (2014). Dynamics of vessel wall changes following the implantation of the Absorb everolimus-eluting bioresorbable vascular scaffold: a multi-imaging modality study at 6, 12, 24 and 36 months. EuroIntervention, 9(11), pp. 1271-1284. Europa Digital & Publishing

Full text not available from this repository.

Aims: To assess observations with multimodality imaging of the Absorb bioresorbable everolimus-eluting vascular scaffold performed in two consecutive cohorts of patients who were serially investigated either at 6 and 24 months or at 12 and 36 months. Methods and results: In the ABSORB multicentre single-arm trial, 45 patients (cohort B1) and 56 patients (cohort B2) underwent serial invasive imaging, specifically quantitative coronary angiography (QCA), intravascular ultrasound (IVUS), radiofrequency backscattering (IVUS-VH) and optical coherence tomography (OCT). Between one and three years, late luminal loss remained unchanged (6 months: 0.19 mm, 1 year: 0.27 mm, 2 years: 0.27 mm, 3 years: 0.29 mm) and the in-segment angiographic restenosis rate for the entire cohort B (n=101) at three years was 6%. On IVUS, mean lumen, scaffold, plaque and vessel area showed enlargement up to two years. Mean lumen and scaffold area remained stable between two and three years whereas significant reduction in plaque behind the struts occurred with a trend toward adaptive restrictive remodelling of EEM. Hyperechogenicity of the vessel wall, a surrogate of the bioresorption process, decreased from 23.1% to 10.4% with a reduction of radiofrequency backscattering for dense calcium and necrotic core. At three years, the count of strut cores detected on OCT increased significantly, probably reflecting the dismantling of the scaffold; 98% of struts were covered. In the entire cohort B (n=101), the three-year major adverse cardiac event rate was 10.0% without any scaffold thrombosis. Conclusions: The current investigation demonstrated the dynamics of vessel wall changes after implantation of a bioresorbable scaffold, resulting at three years in stable luminal dimensions, a low restenosis rate and a low clinical major adverse cardiac events rate.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology
UniBE Contributor:	Windecker, Stephan
Subjects:	600 Technology > 610 Medicine & health
ISSN:	1774-024X
Publisher:	Europa Digital & Publishing
Language:	English
Submitter:	Judith Liniger
Date Deposited:	24 Mar 2014 10:27
Last Modified:	05 Dec 2022 14:28
PubMed ID:	24291783
URI:	https://boris.unibe.ch/id/eprint/41644