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Vol 69, No 4 (2011)
Original articles
Published online: 2011-04-26
Submitted: 2012-12-28
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Two-dimensional longitudinal strain for the assessment of the left ventricular systolic function as compared with conventional echocardiographic methods in patients with acute coronary syndromes

Robert Ryczek, Paweł Krzesiński, Paweł Krzywicki, Paweł Smurzyński, Andrzej Cwetsch
Kardiol Pol 2011;69(4):357-362.

open access

Vol 69, No 4 (2011)
Original articles
Published online: 2011-04-26
Submitted: 2012-12-28

Abstract


Background: The evaluation of the left ventricular (LV) function is one of the most important elements of diagnosis in patients with cardiovascular (CV) diseases. A low LV ejection fraction (LVEF) is a strong and independent predictor of CV events. Traditionally, echocardiography characterises the LV systolic function by the estimation of LVEF with use of the Simpson method, supported by the wall motion score index (WMSI). Speckle tracking imaging is a new method of LV function imaging based on the estimation of longitudinal peak systolic strain (LPSS), by tracing of the automatically detected myocardial speckles.
Aim: To evaluate the usefulness of global longitudinal peak systolic strain (GLPSS) and regional longitudinal peak systolic strain (r-LPSS) in LV systolic function assessment and to compare LPSS with conventional parameters such as LVEF, WMSI and regional wall motion score index (r-WMSI).
Methods: The study was performed in a group of 44 patients with a clinical diagnosis of acute coronary syndrome (mean age 63.6 ± 12.2 years). The LVEF, WMSI, r-WMSI were estimated by echocardiography (VIVID 7 Dimension, GE Healthcare, USA). Moreover, LPSS (GLPSS and r-LPSS) with use of automated function imaging (AFI) were also estimated.
Results: In the study group mean LVEF was 43.1 ± 12.7%, mean WMSI: 1.68 ± 0.52, and GLPSS: -13.8 ± 5.6%. A very strong linear correlation between the conventional and new parameters was observed - for GLPSS and LVEF: r = -0.86 (p < 0.00001), for GLPSS and WMSI: r = 0.88 (p < 0.00001). The results of the regional myocardial contractility assessment (r-LPSS and r-WMSI) were also in agreement, especially for LV anterior wall (r = 0.87, p < 0.00001).
Conclusions: These results suggest a considerable usefulness of LPSS - a new method of echocardiographical imaging - in the estimation of global and regional LV function in patients with acute coronary syndrome and its agreement with conventional parameters such as LVEF and WMSI.
Kardiol Pol 2011; 69, 4: 357-362

Abstract


Background: The evaluation of the left ventricular (LV) function is one of the most important elements of diagnosis in patients with cardiovascular (CV) diseases. A low LV ejection fraction (LVEF) is a strong and independent predictor of CV events. Traditionally, echocardiography characterises the LV systolic function by the estimation of LVEF with use of the Simpson method, supported by the wall motion score index (WMSI). Speckle tracking imaging is a new method of LV function imaging based on the estimation of longitudinal peak systolic strain (LPSS), by tracing of the automatically detected myocardial speckles.
Aim: To evaluate the usefulness of global longitudinal peak systolic strain (GLPSS) and regional longitudinal peak systolic strain (r-LPSS) in LV systolic function assessment and to compare LPSS with conventional parameters such as LVEF, WMSI and regional wall motion score index (r-WMSI).
Methods: The study was performed in a group of 44 patients with a clinical diagnosis of acute coronary syndrome (mean age 63.6 ± 12.2 years). The LVEF, WMSI, r-WMSI were estimated by echocardiography (VIVID 7 Dimension, GE Healthcare, USA). Moreover, LPSS (GLPSS and r-LPSS) with use of automated function imaging (AFI) were also estimated.
Results: In the study group mean LVEF was 43.1 ± 12.7%, mean WMSI: 1.68 ± 0.52, and GLPSS: -13.8 ± 5.6%. A very strong linear correlation between the conventional and new parameters was observed - for GLPSS and LVEF: r = -0.86 (p < 0.00001), for GLPSS and WMSI: r = 0.88 (p < 0.00001). The results of the regional myocardial contractility assessment (r-LPSS and r-WMSI) were also in agreement, especially for LV anterior wall (r = 0.87, p < 0.00001).
Conclusions: These results suggest a considerable usefulness of LPSS - a new method of echocardiographical imaging - in the estimation of global and regional LV function in patients with acute coronary syndrome and its agreement with conventional parameters such as LVEF and WMSI.
Kardiol Pol 2011; 69, 4: 357-362
Get Citation

Keywords

left ventricular systolic function; 2D strain imaging; echocardiography; acute coronary syndrome

About this article
Title

Two-dimensional longitudinal strain for the assessment of the left ventricular systolic function as compared with conventional echocardiographic methods in patients with acute coronary syndromes

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 69, No 4 (2011)

Pages

357-362

Published online

2011-04-26

Bibliographic record

Kardiol Pol 2011;69(4):357-362.

Keywords

left ventricular systolic function
2D strain imaging
echocardiography
acute coronary syndrome

Authors

Robert Ryczek
Paweł Krzesiński
Paweł Krzywicki
Paweł Smurzyński
Andrzej Cwetsch

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