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Relationship of left atrial global peak systolic strain with left ventricular diastolic dysfunction and brain natriuretic peptide level in patients presenting with non-ST elevation myocardial infarction.

Değirmenci H, Bakırcı EM, Demirtaş L, Duman H, Hamur H, Ceyhun G, Topal E - Med. Sci. Monit. (2014)

Bottom Line: Left atrium peak systolic global longitudinal strain was significantly correlated with left ventricular ejection fraction.There was a significant inverse correlation between left atrium peak systolic global longitudinal strain and brain natriuretic peptide level, left atrium volume maximum, and left atrium volume minimum.Left atrium peak systolic global longitudinal strain measurements may be helpful as a complimentary method to evaluate diastolic function in this patient population.

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology, Mengücek Gazi Education and Research Hospital, Erzincan University, Erzincan, Turkey.

ABSTRACT

Background: In patients presenting with non-ST elevation myocardial infarction, we investigated the relationship of left atrial deformational parameters evaluated by 2-dimensional speckle tracking imaging (2D-STI) with conventional echocardiographic diastolic dysfunction parameters and brain natriuretic peptide level.

Material and methods: We enrolled 74 non-ST segment elevation myocardial infarction patients who were treated with percutaneous coronary intervention and 58 healthy control subjects. Non-ST segment elevation myocardial infarction patients had echocardiographic examination 48 h after the percutaneous coronary intervention procedure and venous blood samples were drawn simultaneously. In addition to conventional echocardiographic parameters, left atrial strain curves were obtained for each patient. Average peak left atrial strain values during left ventricular systole were measured.

Results: BNP values were higher in non-ST segment elevation myocardial infarction patients compared to controls. Mean left atrium peak systolic global longitudinal strain in Group 2 (the control group) was higher than in the non-ST segment elevation myocardial infarction group. Left atrium peak systolic global longitudinal strain was significantly correlated with left ventricular ejection fraction. There was a significant inverse correlation between left atrium peak systolic global longitudinal strain and brain natriuretic peptide level, left atrium volume maximum, and left atrium volume minimum.

Conclusions: Our study shows that Left atrium peak systolic global longitudinal strain values decreased consistently with deteriorating systolic and diastolic function in non-ST segment elevation myocardial infarction patients treated with percutaneous coronary intervention. Left atrium peak systolic global longitudinal strain measurements may be helpful as a complimentary method to evaluate diastolic function in this patient population.

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Measurements of LAGLSs on an image obtained from apical 4-chamber view (LAGLSs: peak left atrial strain during left ventricular systole).
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f1-medscimonit-20-2013: Measurements of LAGLSs on an image obtained from apical 4-chamber view (LAGLSs: peak left atrial strain during left ventricular systole).

Mentions: Two-dimensional echocardiography views for the LA were attained from the apical 4-chamber image. All views were attained with patients holding their breath at end-expiration and the views were stored in a cineloop format from 3 sequential beats. The frame rate for views was set at 60–90 frames/second. After determining the endocardial border manually, the software system was automatically improved for each frame. If the automatically attained tracking segments were sufficient for analysis, the software system was allowed to read the data, and analytically insufficient tracking segments were either corrected manually or excluded from the analysis. The view-tracking algorithm automatically divided the LA wall into 6 segments. The typical LA strain graph was attained for each patient. Mean peak LA strain valuations during LV systole (LAGLSs) for 6 segments were evaluated (Figure 1).


Relationship of left atrial global peak systolic strain with left ventricular diastolic dysfunction and brain natriuretic peptide level in patients presenting with non-ST elevation myocardial infarction.

Değirmenci H, Bakırcı EM, Demirtaş L, Duman H, Hamur H, Ceyhun G, Topal E - Med. Sci. Monit. (2014)

Measurements of LAGLSs on an image obtained from apical 4-chamber view (LAGLSs: peak left atrial strain during left ventricular systole).
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4214700&req=5

f1-medscimonit-20-2013: Measurements of LAGLSs on an image obtained from apical 4-chamber view (LAGLSs: peak left atrial strain during left ventricular systole).
Mentions: Two-dimensional echocardiography views for the LA were attained from the apical 4-chamber image. All views were attained with patients holding their breath at end-expiration and the views were stored in a cineloop format from 3 sequential beats. The frame rate for views was set at 60–90 frames/second. After determining the endocardial border manually, the software system was automatically improved for each frame. If the automatically attained tracking segments were sufficient for analysis, the software system was allowed to read the data, and analytically insufficient tracking segments were either corrected manually or excluded from the analysis. The view-tracking algorithm automatically divided the LA wall into 6 segments. The typical LA strain graph was attained for each patient. Mean peak LA strain valuations during LV systole (LAGLSs) for 6 segments were evaluated (Figure 1).

Bottom Line: Left atrium peak systolic global longitudinal strain was significantly correlated with left ventricular ejection fraction.There was a significant inverse correlation between left atrium peak systolic global longitudinal strain and brain natriuretic peptide level, left atrium volume maximum, and left atrium volume minimum.Left atrium peak systolic global longitudinal strain measurements may be helpful as a complimentary method to evaluate diastolic function in this patient population.

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology, Mengücek Gazi Education and Research Hospital, Erzincan University, Erzincan, Turkey.

ABSTRACT

Background: In patients presenting with non-ST elevation myocardial infarction, we investigated the relationship of left atrial deformational parameters evaluated by 2-dimensional speckle tracking imaging (2D-STI) with conventional echocardiographic diastolic dysfunction parameters and brain natriuretic peptide level.

Material and methods: We enrolled 74 non-ST segment elevation myocardial infarction patients who were treated with percutaneous coronary intervention and 58 healthy control subjects. Non-ST segment elevation myocardial infarction patients had echocardiographic examination 48 h after the percutaneous coronary intervention procedure and venous blood samples were drawn simultaneously. In addition to conventional echocardiographic parameters, left atrial strain curves were obtained for each patient. Average peak left atrial strain values during left ventricular systole were measured.

Results: BNP values were higher in non-ST segment elevation myocardial infarction patients compared to controls. Mean left atrium peak systolic global longitudinal strain in Group 2 (the control group) was higher than in the non-ST segment elevation myocardial infarction group. Left atrium peak systolic global longitudinal strain was significantly correlated with left ventricular ejection fraction. There was a significant inverse correlation between left atrium peak systolic global longitudinal strain and brain natriuretic peptide level, left atrium volume maximum, and left atrium volume minimum.

Conclusions: Our study shows that Left atrium peak systolic global longitudinal strain values decreased consistently with deteriorating systolic and diastolic function in non-ST segment elevation myocardial infarction patients treated with percutaneous coronary intervention. Left atrium peak systolic global longitudinal strain measurements may be helpful as a complimentary method to evaluate diastolic function in this patient population.

Show MeSH
Related in: MedlinePlus