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Statin therapy decreases myocardial function as evaluated via strain imaging

Jack Rubinstein1, Feras Aloka, George S Abela

  • 1Cardiology Division, Department of Medicine, Michigan State University, East Lansing, MI 48824, USA.

Clinical Cardiology
|December 23, 2009
PubMed

Insights

Statin therapy may negatively impact heart muscle function, as indicated by strain imaging (SI) results. Further research is needed to understand these effects beyond lipid reduction.

Area of Science:

  • Cardiology
  • Pharmacology
  • Medical Imaging

Background:

  • Statins improve cardiovascular outcomes but can cause myopathy.
  • The impact of statins on myocardial function independent of lipid levels requires investigation.
  • Tissue Doppler Imaging (TDI) and Strain Imaging (SI) are advanced echocardiographic techniques for assessing cardiac function.

Purpose of the Study:

  • To evaluate the effects of statin therapy on myocardial function using TDI and SI.
  • To determine if statin use impacts cardiac function irrespective of its lipid-lowering effects.

Main Methods:

  • Echocardiography with TDI and SI was performed on 28 patients.
  • 12 patients on statin therapy were compared to 16 matched controls without overt cardiovascular disease.
  • Diastolic (E/A, E/E) and systolic (S') function were measured using TDI, and regional systolic function was assessed via SI.

Main Results:

  • No significant differences in myocardial function were observed with Doppler or TDI between groups.
  • Strain imaging (SI) revealed significantly reduced myocardial function in the statin group compared to controls across multiple views (4-chamber, 2-chamber, long axis, global).
  • Specific SI values showed statistically significant decreases in systolic function for the statin group (P < 0.05 for all views).

Conclusions:

  • Statin therapy is associated with diminished myocardial function as detected by strain imaging (SI).
  • These findings suggest a potential direct effect of statins on cardiac muscle function.
  • Further studies are warranted to elucidate the clinical implications of these observed functional changes.
Abstract

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