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Updated: Jul 24, 2025

Author Spotlight: Using Point-of-Care Ultrasound for Comprehensive Evaluation of the Abdominal Aorta
Published on: September 8, 2023
Normalization of ascending aorta dimension for body size influences pathophysiologic correlation in hypertensive
Costantino Mancusi1, Maria Virginia Manzi1, Maria Lembo1
1Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University, Via S. Pansini 5, Naples 80131, Italy.
Insights
Ascending aorta (AscAo) measurements in hypertensive patients vary by method. AscAo and AscAo normalized for height (AscAo/HT) show physiological consistency and predict cardiovascular risk, unlike AscAo normalized for body surface area (AscAo/BSA).
Area of Science:
- Cardiology
- Medical Imaging
- Hypertension Research
Background:
- Systemic hypertension can lead to aortic remodeling.
- Accurate measurement of the ascending aorta (AscAo) is crucial for assessing cardiovascular risk.
- Different normalization methods (e.g., height, body surface area) may influence AscAo measurements.
Purpose of the Study:
- To assess the correlates and consistency of ascending aorta (AscAo) measurements in treated hypertensive patients.
- To compare the physiological consistency of AscAo, AscAo normalized for height (AscAo/HT), and AscAo normalized for body surface area (AscAo/BSA).
- To evaluate the association of these aortic measures with cardiovascular outcomes.
Main Methods:
- Included 1634 adult patients with treated hypertension and available AscAo ultrasound.
- Measured AscAo at end-diastole using the leading edge to leading edge method.
- Explored correlations with demographics and metabolic profile; used multivariable regression and sensitivity analysis with cardiovascular outcomes.
Main Results:
- AscAo, AscAo/HT, and AscAo/BSA showed similar correlations with age, eGFR, BP, and HR.
- Obesity and diabetes were associated with greater AscAo and AscAo/HT but smaller AscAo/BSA.
- Dilated AscAo and AscAo/HT, but not AscAo/BSA, were significantly associated with increased cardiovascular event risk.
Conclusions:
- Aortic remodeling magnitude in hypertensive patients depends on the measurement method used.
- AscAo and AscAo/HT measurements demonstrate physiological consistency.
- AscAo/BSA is less physiologically consistent and does not reliably predict cardiovascular risk in this cohort.
Aims:
In the present study, we assessed correlates and their consistency of ascending aorta (AscAo) measurement in treated hypertensive patients.
Methods And Results:
A total of 1634 patients ≥ 18 years old with available AscAo ultrasound were included. Ascending aorta was measured at end-diastole with leading edge to leading edge method, perpendicular to the long axis of the aorta in parasternal long-axis view at its maximal identifiable dimension. Correlations of AscAo and AscAo normalized for height (AscAo/HT) or body surface area (AscAo/BSA) with demographics and metabolic profile were explored. Multi-variable regression was also used to identify potential confounders influencing univariate correlations. Sensitivity analysis was performed using cardiovascular (CV) outcome. Correlations with age, estimated glomerular filtration rate, systolic blood pressure (BP), and heart rate (HR) were similar among the three aortic measures. Women exhibited smaller AscAo but larger AscAo/BSA than men with AscAo/HT offsetting the sex difference. Obesity and diabetes were associated with greater AscAo and AscAo/HT but with smaller AscAo/BSA (all P < 0.001). In multi-variable regression model, all aortic measure confirmed the sign of their relations with sex and metabolic profile independently of age, BP, and HR. In Kaplan-Mayer analysis, only dilated AscAo and AscAo/HT were significantly associated with increased risk of CV events (both P < 0.008).
Conclusions:
Among patients with long-standing controlled systemic hypertension, magnitude of aortic remodelling is influenced by the type of the measure adopted, with physiological consistency only for AscAo and AscAo/HT, but not for AscAo/BSA.
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