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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
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Which factors impact myocardial function in systemic sclerosis?

Branislava A Ivanovic1, Marijana V Tadic, Maja M Zlatanovic

  • 1Faculty of Medicine, Belgrade University, Doktora Subotica, Belgrade, Serbia. lole@scnet.rs

Echocardiography (Mount Kisco, N.Y.)
|November 10, 2011
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Summary

Brain natriuretic peptide (BNP), diffusion capacity for carbon monoxide (DLCO), and pulmonary vascular resistance (PVR) are key noninvasive markers for detecting early heart involvement in systemic sclerosis (SSc) patients.

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Area of Science:

  • Cardiology
  • Rheumatology
  • Medical Imaging

Background:

  • Systemic sclerosis (SSc) can affect cardiac function, particularly diastolic function of the left and right ventricles.
  • Early detection of myocardial involvement is crucial for managing SSc patients.

Purpose of the Study:

  • To identify clinical and echocardiographic parameters influencing left (LV) and right ventricular (RV) diastolic and global function in SSc patients.
  • To establish noninvasive markers for early myocardial involvement in SSc.

Main Methods:

  • Studied 50 SSc patients and 48 healthy controls using clinical examination, serology, pulmonary function tests, and echocardiography (including tissue Doppler).
  • Assessed diastolic function via E/e' ratios and global function using the Tei index.
  • Calculated pulmonary vascular resistance (PVR) using echocardiographic data.

Main Results:

  • SSc patients showed impaired diastolic function (decreased E/A and e'/a' ratios, increased E/e') and elevated RV Tei index and PVR compared to controls.
  • Multivariate analysis identified brain natriuretic peptide (BNP), DLCO, RV systolic pressure, and PVR as independent predictors of RV diastolic function and Tei index.
  • BNP, DLCO, and PVR were also independently associated with LV diastolic function and Tei index.

Conclusions:

  • BNP, DLCO, and PVR are valuable noninvasive parameters for assessing early myocardial involvement in SSc.
  • These markers can aid in routine clinical practice for timely diagnosis and management of cardiac complications in SSc.