CFD and VH-IVUS Biomechanical Analysis of Coronary Artery Disease With One Year Follow-Up

Author(s):  
David S. Molony ◽  
Lucas H. Timmins ◽  
Parham Eshtehardi ◽  
Habib Samady ◽  
Don P. Giddens

Coronary atherosclerotic plaques are frequently focal lesions that have variable rates of progression. Wall shear stresses (WSS) create a number of responses in endothelial cells that can lead to the localization and progression of these lesions, and in vivo coronary segments with low WSS have been found to develop greater plaque progression than segments of higher WSS.

2019 ◽  
Vol 21 (10) ◽  
pp. 725-733 ◽  
Author(s):  
Wei-Yuan Xu ◽  
Wei-Liang Tang ◽  
Min Yuan ◽  
Yong Sun ◽  
Feng Xu ◽  
...  

Background: Circulating endothelial progenitor cells (EPCs) have regenerative capacities and play an important role in vessel wall homeostasis. When attracted to the site of vessel wall injury, EPCs rapidly differentiate into a functional layer as part of the healing process. The Genous TM endothelial progenitor cell (EPC) capturing stent is coated with anti-human CD34+ antibodies which combine with circulating EPCs from the peripheral blood to the stent surface. Objective: This meta-analysis aims to explore the Genous TM endothelial progenitor cell capturing stent in coronary artery disease (CAD) adverse event rate after one-year follow-up. Methods: PubMed, EMBASE and, Google Scholar databases were searched for eligible studies. CAD survival data and clinicopathological features were analyzed by expected shortfall (ES) and 95% CI. Fixed-effect model and random-effect model are used for summary statistics. Results: 12 studies, including 15985 coronary artery disease (CAD) patients who received PCI treatment were included in this study. After 1-year follow-up, the rate of adverse event showed that the target vessel failure (TVF) was 8.5% (7.6%-17.4%), target vessel revascularization was 4.1% (TVR, 0-15.6%), target lesion revascularization was 4.2% (TLR, 3.7%-22%), myocardial infarction was 2.0% (MI, 1.8%-5.2%), major adverse cardiac events was 8.7% (MACE, 6.4%-28%), and the all-cause death was 4.0% (0-9.2). Conclusion: After one-year follow-up, the incidence rate of Genous stent adverse events was stable in CAD patients. The study showed a better evaluation of Genous stent, and it provides a better reference for CAD clinical treatment.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Abdulhamied Alfaddagh ◽  
Francine K Welty

Introduction: Poor physical function impairs fitness and is associated with worse cardiovascular outcomes and all-cause mortality. Arthritis and joint dysfunction limit physical function in coronary artery disease (CAD) patients. Hypothesis: Omega-3 fatty acids (FA) improve physical function in CAD patients through reducing inflammation. Methods: We randomized 249 subjects with stable CAD to 3.6 of omega-3 FA (1.86 g of eicosapentaenoic acid + 1.5 g of docosahexaenoic acid) per day or no omega-3 (control) for one year. The Western Ontario and McMaster Universities Arthritis Index (WOMAC) was used to evaluate pain, stiffness and physical function at baseline and one year follow-up. Inflammation was assessed by total white blood cell (WBC) count and its subsets as well as urine microalbumin-creatinine ratio (MCR). Results: Mean age was 63.0 ± 7.58 years; 17% were women. Controls had worsening stiffness (% Δ = 8.4%; p = 0.036) at 1 year follow-up while those on omega-3 FA had no change (% Δ = 0.4%, p = 0.886 - see Table)(a lower percent change indicates better functioning). Compared to controls, those on omega-3 FA had better physical function (% Δ = 8.5% vs. -2.8%, p = 0.011), and total WOMAC scores (% Δ = 7.8% vs. -2.5%, p = 0.011) and a significant decrease in WBC (% Δ = -3.5 vs. -9.4%; p=0.009) and neutrophils (% Δ = -3.5% vs. -11.6%; p=0.005) at one year follow-up. MCR significantly worsened only in the control group (% Δ = 53.3%, p = 0.037) at one year follow-up (p-value for control vs. omega-3 FAs groups = 0.026). Monocytes were decreased in the omega-3 FAs group at one year compared to baseline (% Δ = -11.1%, p < 0.001) and directly correlated with physical function and total scores (p = 0.033 and p = 0.024, respectively). Conclusions: Omega-3 FAs attenuate worsening of physical function over a one year period in CAD patients possibly mediated through an anti-inflammatory effect. Therefore, omega-3 FA may benefit CAD patients by improving their physical function.


1988 ◽  
Vol 115 (6) ◽  
pp. 1263-1267 ◽  
Author(s):  
Kyung J Chung ◽  
David R Fulton ◽  
Richard Lapp ◽  
Stephen Spector ◽  
David J Sahn

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