Neoatherosclerosis development following bioresorbable vascular scaffold implantation in diabetic and non-diabetic swine
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Author
van Ditzhuijzen, Nienke S.
Kurata, Mie
van den Heuvel, Mieke
Sorop, Oana
van Duin, Richard W. B.
Krabbendam-Peters, Ilona
Ligthart, Jurgen
Witberg, Karen
Murawska, Magdalena
Garcia-Garcia, Hector M.
Serruys, Patrick W.
Zijlstra, Felix
van Soest, Gijs
Duncker, Dirk-Jan
Regar, Evelyn
van Beusekom, Heleen M. M.
Note: Order does not necessarily reflect citation order of authors.
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https://doi.org/10.1371/journal.pone.0183419Metadata
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van Ditzhuijzen, N. S., M. Kurata, M. van den Heuvel, O. Sorop, R. W. B. van Duin, I. Krabbendam-Peters, J. Ligthart, et al. 2017. “Neoatherosclerosis development following bioresorbable vascular scaffold implantation in diabetic and non-diabetic swine.” PLoS ONE 12 (9): e0183419. doi:10.1371/journal.pone.0183419. http://dx.doi.org/10.1371/journal.pone.0183419.Abstract
Background: DM remains a risk factor for poor outcome after stent-implantation, but little is known if and how DM affects the vascular response to BVS. Aim The aim of our study was to examine coronary responses to bioresorbable vascular scaffolds (BVS) in swine with and without diabetes mellitus fed a ‘fast-food’ diet (FF-DM and FF-NDM, respectively) by sequential optical coherence tomography (OCT)-imaging and histology. Methods: Fifteen male swine were evaluated. Eight received streptozotocin-injection to induce DM. After 9 months (M), 32 single BVS were implanted in epicardial arteries with a stent to artery (S/A)-ratio of 1.1:1 under quantitative coronary angiography (QCA) and OCT guidance. Lumen, scaffold, neointimal coverage and composition were assessed by QCA, OCT and near-infrared spectroscopy (NIRS) pre- and/or post-procedure, at 3M and 6M. Additionally, polarization-sensitive (PS)-OCT was performed in 7 swine at 6M. After sacrifice at 3M and 6M, histology and polymer degradation analysis were performed. Results: Late lumen loss was high (~60%) within the first 3M after BVS-implantation (P<0.01 FF-DM vs. FF-NDM) and stabilized between 3M and 6M (<5% change in FF-DM, ~10% in FF-NDM; P>0.20). Neointimal coverage was highly heterogeneous in all swine (DM vs. NDM P>0.05), with focal lipid accumulation, irregular collagen distribution and neointimal calcification. Likewise, polymer mass loss was low (~2% at 3M, ~5% at 6M;P>0.20) and not associated with DM or inflammation. Conclusion: Scaffold coverage showed signs of neo-atherosclerosis in all FF-DM and FF-NDM swine, scaffold polymer was preserved and the vascular response to BVS was not influenced by diabetes.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5595285/pdf/Terms of Use
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