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Shear Stress

Abstract

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Prediction of progression of coronary artery disease and clinical outcomes using vascular profiling of endothelial shear stress and arterial plaque characteristics: the PREDICTION Study Role of endothelial dysfunction in determining angina after percutaneous coronary intervention: Learning from pathophysiology to optimize treatment High Coronary Shear Stress in Patients With Coronary Artery Disease Predicts Myocardial Infarction Angiographic derived endothelial shear stress: a new predictor of atherosclerotic disease progression Flow-Regulated Endothelial S1P Receptor-1 Signaling Sustains Vascular Development Low Endothelial Shear Stress Predicts Evolution to High-Risk Coronary Plaque Phenotype in the Future: A Serial Optical Coherence Tomography and Computational Fluid Dynamics Study Evolving understanding of the heterogeneous natural history of individual coronary artery plaques and the role of local endothelial shear stress TAVI Represents an Anti-Inflammatory Therapy via Reduction of Shear Stress Induced, Piezo-1-Mediated Monocyte Activation
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Clinical TrialVolume 71, Issue 19, May 2018

JOURNAL:J Am Coll Cardiol. Article Link

4-Step Protocol for Disparities in STEMI Care and Outcomes in Women

CP Huded, M Johnson, UN Khot et al. Keywords: acute myocardial infarction; door-to-balloon time; sex disparity; women; PCI; STEMI

ABSTRACT


BACKGROUND - Women with ST-segment elevation myocardial infarction (STEMI) receive suboptimal care and have worse outcomes than men. Whether strategies to reduce STEMI care variability impact disparities in the care and outcomes of women with STEMI is unknown.


OBJECTIVES - The study assessed the care and outcomes of men versus women with STEMI before and after implementation of a comprehensive STEMI protocol.

METHODS - On July 15, 2014, the authors implemented: 1) emergency department catheterization lab activation; 2) STEMI Safe Handoff Checklist; 3) immediate transfer to an immediately available catheterization lab; and 4) radial first approach to percutaneous coronary intervention (PCI). The authors prospectively studied consecutive patients with STEMI and assessed guideline-directed medical therapy (GDMT) before PCI, median door-to-balloon time (D2BT), in-hospital adverse events, and 30-day mortality stratified by sex before (January 1, 2011 to July 14, 2014; control group) and after (July 15, 2014 to December 31, 2016) implementation of the STEMI protocol.

RESULTS - Of 1,272 participants (68% men, 32% women), women were older with more comorbidities than men. In the control group, women had less GDMT (77% vs. 69%; p = 0.019) and longer D2BT (median 104 min; [interquartile range (IQR): 79 to 133] min vs. 112 [IQR: 85 to 147] min; p = 0.023). Women had more in-hospital stroke, vascular complications, bleeding, transfusion, and death. In the comprehensive 4-step STEMI protocol, sex disparities in GDMT (84% vs. 80%; p = 0.32), D2BT (89 [IQR: 68 to 106] min vs. 91 [IQR: 68 to 114] min; p = 0.15), and in-hospital adverse events resolved. The absolute sex difference in 30-day mortality decreased from the control group (6.1% higher in women; p = 0.002) to the comprehensive 4-step STEMI protocol (3.2% higher in women; p = 0.090).

CONCLUSIONS - A systems-based approach to STEMI care reduces sex disparities and improves STEMI care and outcomes in women.