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Absent atherosclerotic risk factors are associated with carotid stiffening quantified with ultrafast ultrasound imaging

  • Ultrasound
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Abstract

Objectives

To evaluate carotid stiffening in participants without conventional cardiovascular risk factors (CVRFs) by using ultrafast pulse wave velocity (ufPWV).

Methods

The present study enrolled 517 participants without conventional CVRFs (CVRF-Free total population). Subjects in this population were defined as current non-smokers with untreated blood pressure < 140/90 mmHg, fasting blood glucose (FBG) < 7.0 mmol/L, total cholesterol (TC) < 6.2 mmol/L, low-density lipoprotein cholesterol < 4.1 mmol/L, and high-density lipoprotein cholesterol ≥ 1.0 mmol/L. Participants in the subgroup with optimal CVRFs (CVRF-Optimal subgroup; n = 188) were defined as having blood pressure < 120/80 mmHg, TC < 5.2 mmol/L, and FBG < 5.6 mmol/L. Clinical interviews, physical examinations, serum draw, carotid intima-media thickness (cIMT), and ufPWV were evaluated. Adjusted odds ratios (ORs) with 95% confidence intervals and ordinal logistic regression models were used.

Results

Carotid stiffening was present in 46.2–54.5% of CVRF-Free subjects. Age, male sex, and body mass index (BMI) were independently associated with carotid stiffening in both the CVRF-Free total population and CVRF-Optimal subgroup (OR for age = 1.10–1.11, OR for male sex = 2.65–7.19, OR for BMI = 1.34–1.62; p < 0.05). Carotid stiffening was associated with TC only in the CVRF-Free total population (OR for TC = 1.84; p = 0.034).

Conclusions

Many CVRF-Free individuals have carotid stiffening. ufPWV for atherosclerotic stiffening aids the assessment of early atherogenesis and may further clarify the true status of healthy adults without CVRFs.

Key Points

CVRF-Optimal individuals have a lower carotid stiffness than CVRF-Free populations.

ufPWV is a quantitative predictor for the early assessment of AS.

Absent major CVRFs cannot be considered low risk for carotid stiffening and atherosclerosis.

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Abbreviations

ACAMS:

Aixplorer cIMT automatic measure system

ALT:

Alanine aminotransferase

AS:

Atherosclerosis

BMI:

Body mass index

CCA:

Common carotid artery

cfPWV:

Carotid-femoral pulse wave velocity

CI:

Confidence interval

cIMT:

Carotid intima-media thickness

CVRF:

Cardiovascular risk factor

DBP:

Diastolic blood pressure

DICOM:

Digital Imaging and Communications in Medicine

eGFR:

Estimated glomerular filtration rate

ESC:

European Society of Cardiology

FBG:

Fasting blood glucose

HDL:

High-density lipoprotein

IMT:

Intima-media thickness

LDL:

Low-density lipoprotein

OR:

Odds ratio

PESA:

Progression of Early Subclinical Atherosclerosis

PWV:

Pulse wave velocity

PWV-BS:

Pulse wave velocity-beginning of systole

PWV-ES:

Pulse wave velocity-end of systole

ROI:

Region of interest

SBP:

Systolic blood pressure

TC:

Total cholesterol

TG:

Triglyceride

ufPWV:

Ultrafast pulse wave velocity

UUI:

Ultrafast ultrasound imaging

vEDS:

Vascular Ehlers-Danlos syndrome

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Funding

This work was supported by the National Natural Science Foundation of China (grant number: 81901756), the Team Project of Jiangsu Provincial Six Talent Peaks (grant number: TD-SWYY-069), the Key Project of Jiangsu Administration of Chinese Medicine (grant number: ZD201906), the Research Project of National Administration of Chinese Medicine (grant number: YB2015020), and the Research of Jiangsu Province Hospital of Chinese Medicine (grant number: Y20044).

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Correspondence to Fu-Ming Liu or Hui Huang.

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Guarantor

The scientific guarantors of this publication are Hui Huang, M.D. (Department of Ultrasound, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China) and Fu-Ming Liu, Ph.D. (Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China).

Conflict of interest

The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.

Statistics and biometry

No complex statistical methods were necessary for this paper.

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Written informed consent was obtained from all subjects (patients) in this study.

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Institutional Review Board approval was obtained.

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• performed at one institution

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Zhu, ZQ., Chen, LS., Jiang, XZ. et al. Absent atherosclerotic risk factors are associated with carotid stiffening quantified with ultrafast ultrasound imaging. Eur Radiol 31, 3195–3206 (2021). https://doi.org/10.1007/s00330-020-07405-4

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  • DOI: https://doi.org/10.1007/s00330-020-07405-4

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