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Published on: February 7, 2015

Carotid resistive index in treated hypertensive patients: relationship with target organ damage

Pedro Morillas1, Juan Quiles, Irene Mateo

  • 1Arterial Hypertension Unit, Cardiology Department, Hospital Universitario de San Juan, Alicante, Spain. pedromorillas@teleline.es

Blood Pressure
|July 4, 2012
PubMed

Insights

Common carotid resistive index (RI) in hypertensive patients correlates with age, blood pressure, and left ventricular mass index. This measure can help predict early cardiovascular damage and overall risk.

Area of Science:

  • Cardiovascular Medicine
  • Nephrology
  • Vascular Ultrasound

Background:

  • The resistive index (RI) is a hemodynamic parameter reflecting vascular resistance and wall elasticity.
  • Hypertension is a major risk factor for target organ damage.
  • Assessing early signs of damage is crucial for managing hypertensive patients.

Purpose of the Study:

  • To investigate the relationship between common carotid artery RI and target organ damage in treated hypertensive individuals.
  • To determine if carotid RI can serve as a predictor of cardiovascular complications.

Main Methods:

  • Analysis of 265 treated hypertensive patients.
  • Collection of risk factors, medical history, and laboratory tests.
  • Carotid echo-Doppler ultrasound to measure RI, intima-media thickness (IMT), and plaque presence; echocardiography for left ventricular mass index (LVMI); ankle-brachial index (ABI) measurement.

Main Results:

  • Carotid RI positively correlated with age, systolic blood pressure, heart rate, carotid IMT, LVMI, and urinary albumin excretion (UAE).
  • Negative correlation observed between carotid RI and diastolic blood pressure and ABI.
  • Higher carotid RI quartiles were associated with increased prevalence of left ventricular hypertrophy and peripheral artery disease.

Conclusions:

  • Common carotid RI is significantly associated with age, blood pressure, and LVMI in hypertensive patients.
  • Carotid RI serves as a valuable indicator for predicting early cardiovascular damage.
  • This parameter aids in providing a more accurate estimation of overall cardiovascular risk in hypertensive populations.
Abstract

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