CBS 2019
CBSMD教育中心
中 文

动脉粥样硬化性心血管疾病预防

Abstract

Recommended Article

Low-density lipoproteins cause atherosclerotic cardiovascular disease: pathophysiological, genetic, and therapeutic insights: a consensus statement from the European Atherosclerosis Society Consensus Panel Non-invasive detection of coronary inflammation using computed tomography and prediction of residual cardiovascular risk (the CRISP CT study): a post-hoc analysis of prospective outcome data A Review of the Role of Breast Arterial Calcification for Cardiovascular Risk Stratification in Women Non-obstructive High-Risk Plaques Increase the Risk of Future Culprit Lesions Comparable to Obstructive Plaques Without High-Risk Features: The ICONIC Study Can Biomarkers of Myocardial Injury Provide Complementary Information to Coronary Imaging? Coronary calcium as a predictor of coronary events in four racial or ethnic groups Comprehensive Investigation of Circulating Biomarkers and their Causal Role in Atherosclerosis-related Risk Factors and Clinical Events 2019 AHA/ACC Clinical Performance and Quality Measures for Adults With High Blood Pressure: A Report of the American College of Cardiology/American Heart Association Task Force on Performance Measures

Original Research2018 Oct 30. [Epub ahead of print]

JOURNAL:Eur Radiol. Article Link

Fractional flow reserve derived from CCTA may have a prognostic role in myocardial bridging

Zhou F, Tang CX, Zhang LJ et al. Keywords: cFFR; coronary CT angiography; myocardial bridging

ABSTRACT

PURPOSE - To evaluate the feasibility of fractional flow reserve (cFFR) derivation from coronary CT angiography (CCTA) in patients with myocardial bridging (MB), its relationship with MB anatomical features, and clinical relevance.


METHODS - This retrospective study included 120 patients with MB of the left anterior descending artery (LAD) and 41 controls. MB location, length, depth, muscle index, instance, and stenosis rate were measured. cFFR values were compared between superficial MB (2 mm), deep MB (> 2 mm), and control groups. Factors associated with abnormal cFFR values (0.80) were analyzed.


RESULTS - MB patients demonstrated lower cFFR values in MB and distal segments than controls (all p < 0.05). A significant cFFR difference was only found in the MB segment during systole between superficial (0.94, 0.90-0.96) and deep MB (0.91, 0.83-0.95) (p = 0.018). Abnormal cFFR values were found in 69 (57.5%) MB patients (29 [49.2%] superficial vs. 40 [65.6%] deep; p = 0.069). MB length (OR = 1.06, 95% CI 1.03-1.10; p = 0.001) and systolic stenosis (OR = 1.04, 95% CI 1.01-1.07; p = 0.021) were the main predictors for abnormal cFFR, with an area under the curve of 0.774 (95% CI 0.689-0.858; p < 0.001). MB patients with abnormal cFFR reported more typical angina (18.8% vs 3.9%, p = 0.023) than patients with normal values.


CONCLUSION - MB patients showed lower cFFR values than controls. Abnormal cFFR values have a positive association with symptoms of typical angina. MB length and systolic stenosis demonstrate moderate predictive value for an abnormal cFFR value. KEY POINTSMB patients showed lower cFFR values than controls. Abnormal cFFR values have a positive association with typical angina symptoms. MB length and systolic stenosis demonstrate moderate predictive value for an abnormal cFFR value .