CBS 2019
CBSMD教育中心
中 文

血流储备分数

Abstract

Recommended Article

Diagnosis of ischemia-causing coronary stenoses by noninvasive fractional flow reserve computed from coronary computed tomographic angiograms. Results from the prospective multicenter DISCOVER-FLOW Fractional Flow Reserve-Guided Complete Revascularization Improves the Prognosis in Patients With ST-Segment-Elevation Myocardial Infarction and Severe Nonculprit Disease: A DANAMI 3-PRIMULTI Substudy (Primary PCI in Patients With ST-Elevation Myocardial Infarction and Multivessel Disease: Treatment Physiologic Characteristics and Clinical Outcomes of Patients With Discordance Between FFR and iFR Prognostic Implication of Thermodilution Coronary Flow Reserve in Patients Undergoing Fractional Flow Reserve Measurement Impact of myocardial supply area on the transstenotic hemodynamics as determined by fractional flow reserve Relationship between fractional flow reserve value and the amount of subtended myocardium Fractional Flow Reserve-Guided Multivessel Angioplasty in Myocardial Infarction High-Resolution Cardiac Magnetic Resonance Imaging Techniques for the Identification of Coronary Microvascular Dysfunction

Original Research2019 Jan 8;73(1):58-66.

JOURNAL:J Am Coll Cardiol. Article Link

Association of the PHACTR1/EDN1 Genetic Locus With Spontaneous Coronary Artery Dissection

Adlam D, Olson TM, Bouatia-Naji N et al. Keywords: cardiovascular disease in women; fibromuscular dysplasia; genetic association; myocardial infarction

ABSTRACT


BACKGROUND - Spontaneous coronary artery dissection (SCAD) is an increasingly recognized cause of acute coronary syndromes (ACS) afflicting predominantly younger to middle-aged women. Observational studies have reported a high prevalence of extracoronary vascular anomalies, especially fibromuscular dysplasia (FMD) and a low prevalence of coincidental cases of atherosclerosis. PHACTR1/EDN1 is a genetic risk locus for several vascular diseases, including FMD and coronary artery disease, with the putative causal noncoding variant at the rs9349379 locus acting as a potential enhancer for the endothelin-1 (EDN1) gene.


OBJECTIVES - This study sought to test the association between the rs9349379 genotype and SCAD.


METHODS - Results from case control studies from France, United Kingdom, United States, and Australia were analyzed to test the association with SCAD risk, including age at first event, pregnancy-associated SCAD (P-SCAD), and recurrent SCAD.


RESULTS - The previously reported risk allele for FMD (rs9349379-A) was associated with a higher risk of SCAD in all studies. In a meta-analysis of 1,055 SCAD patients and 7,190 controls, the odds ratio (OR) was 1.67 (95% confidence interval [CI]: 1.50 to 1.86) per copy of rs9349379-A. In a subset of 491 SCAD patients, the OR estimate was found to be higher for the association with SCAD in patients without FMD (OR: 1.89; 95% CI: 1.53 to 2.33) than in SCAD cases with FMD (OR: 1.60; 95% CI: 1.28 to 1.99). There was no effect of genotype on age at first event, P-SCAD, or recurrence.


CONCLUSIONS - The first genetic risk factor for SCAD was identified in the largest study conducted to date for this condition. This genetic link may contribute to the clinical overlap between SCAD and FMD.

 

Copyright © 2019 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.