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Evaluation of Common Carotid Stiffness via Echo Tracking in Hypertensive Patients Complicated by Acute Aortic

Wenhui Gu1, Juan Wu1, Yongkai Pei1

  • 1Department of Ultrasound, Second Affiliated Hospital of Dalian Medical University, Dalian, China.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|September 5, 2020
PubMed

Insights

Hypertension patients with acute aortic dissection show increased common carotid artery stiffness and decreased arterial compliance. Systolic blood pressure, stiffness index, pulse wave velocity, and compliance are key predictors of AD in hypertensive individuals.

Area of Science:

  • Vascular Medicine
  • Cardiovascular Imaging
  • Hypertension Research

Background:

  • Hypertension is a major risk factor for cardiovascular diseases, including acute aortic dissection (AD).
  • Assessing arterial stiffness in hypertensive patients is crucial for predicting adverse cardiovascular events.
  • Echo tracking offers a non-invasive method to evaluate common carotid artery (CCA) biomechanical properties.

Purpose of the Study:

  • To evaluate CCA stiffness and compliance using echo tracking in hypertensive patients with and without AD.
  • To identify independent predictors for AD occurrence in hypertensive patients.

Main Methods:

  • Fifty hypertensive patients with AD (AD group), 50 hypertensive patients without AD (HP group), and 50 healthy controls were enrolled.
  • Common carotid artery stiffness index (β), single-point pulsed wave velocity (PWVβ), and arterial compliance (AC) were measured via echo tracking.
  • Multivariate logistic regression analysis was used to identify independent predictors of AD.

Main Results:

  • The AD group exhibited significantly higher CCA intima-media thickness, diameter, β, and PWVβ compared to HP and control groups (P < .05).
  • Arterial compliance (AC) was significantly lower in the AD group (P < .05).
  • Systolic blood pressure (SBP), β, PWVβ, and AC were identified as independent predictors of AD in hypertensive patients (all P < .05).

Conclusions:

  • Hypertensive patients with AD demonstrate significantly increased CCA stiffness and decreased compliance.
  • CCA arterial compliance (AC), stiffness index (β), pulse wave velocity (PWVβ), and systolic blood pressure (SBP) are independent predictors for AD occurrence in hypertensive patients.
Abstract

Keywords:
aortic dissectionarterial stiffnessecho trackinghypertension

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