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Association between echocardiographic parameters and brain natriuretic peptide levels in treated hypertensive

Hisashi Masugata1, Shoichi Senda, Koji Murao

  • 1Department of Integrated Medicine, Kagawa University, Kagawa, Japan. masugata@med.kagawa-u.ac.jp

Clinical and Experimental Hypertension (New York, N.Y. : 1993)
|March 31, 2011
PubMed

Insights

Left atrial dimension (LAD) best predicts elevated brain natriuretic peptide (BNP) in treated hypertensive patients. This finding highlights LAD as a key echocardiographic marker for monitoring cardiac health in this population.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Diagnostic Imaging

Background:

  • Hypertension is a major risk factor for cardiovascular disease.
  • Brain natriuretic peptide (BNP) is a biomarker for heart strain.
  • Echocardiography is crucial for assessing cardiac structure and function.

Purpose of the Study:

  • To identify the echocardiographic parameter most strongly correlated with plasma BNP levels in treated hypertensive patients.
  • To determine if left atrial dimension (LAD) or left ventricular mass index (LVMI) is a better predictor of elevated BNP.

Main Methods:

  • Echocardiography was used to measure LAD and LVMI in 122 treated hypertensive patients.
  • Plasma BNP levels were measured and correlated with echocardiographic parameters.
  • Stepwise regression analysis was performed to identify independent predictors of BNP levels.

Main Results:

  • Left atrial dimension (LAD) showed the strongest correlation with BNP levels (r = 0.343, p < 0.001).
  • LAD was independently associated with BNP (β coefficient = 0.513, p < 0.001) in stepwise regression analysis.
  • Left ventricular hypertrophy (assessed by LVMI) was not as strongly correlated with BNP as LAD.

Conclusions:

  • Left atrial enlargement, indicated by LAD, is a significant predictor of elevated BNP levels in treated hypertensive patients.
  • LAD may be a more clinically useful echocardiographic marker than LVMI for predicting elevated BNP.
  • These findings suggest that monitoring LAD can aid in assessing cardiac strain in hypertensive individuals.

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