| Autor: |
Rumbinaitė, Eglė, Karužas, Arnas, Sakavičiūtė, Emilija, Jonauskienė, Ieva, Karaliūtė, Rasa, Lapinskas, Tomas, Vaškelytė, Jolanta Justina |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
European Heart Journal-Cardiovascular Imaging : Abstracts of EUROECHO 2017 : The Twenty-First Annual Meeting of the European Association of Echocardiography : Lisbon, 6-9 December 2017 / European Association of Cardiovascular Imaging (EACVI). European Society of Cardiology (ESC), Oxford : Oxford University Press, 2017, vol. 18, suppl. 3, p. iii65-iii65, no. P302 |
| ISSN: |
2047-2404 |
| Popis: |
Introduction: The role of left ventricle (LV) longitudinal deformation parameters in detecting hemodynamically significant coronary artery disease (CAD) have been shown in previuos studies. However, still little is known about the diagnostic value of longitudinal left atrial (LA) strain/strain rate parameters at rest and at peak dobutamine dose in the assessment of CAD, while their role can be substantial. Purpose: To determine the diagnostic value of left atrial (LA) longitudinal deformation parameters at rest and at peak dose of dobutamine stress echocardiography (DSE) to predict significant coronary artery stenosis in patients with intermmediate pretest probability of CAD. Methods: DSE and adenosine stress magnetic resonance imaging (AMRI) were perfomed to 61 patients with intermmediate pretest probability of CAD. CAD was defined as>70% diameter coronary artery stenosis on invasive coronary angiography or in the presence of intermediate stenosis (50-70%) validated as hemodynamically significant by AMRI. Both conventional and LA miocardial deformation parameters, such as LA peak systolic strain (LA S), peak systolic SR (LAs SR), early diastolic SR (LAe SR), late diastolic SR (LAa SR) were analysed using 2D speckle tracking echocardiography (STE) at rest and at peak dobutamine dose. Patients were divided into two groups: non-obstructive CAD (-) n=22 ( 36%) vs obstructive CAD (þ) n=39 ( 64%). Results: There were no significant differences of clinical characteristics, conventional echocardiography LV and LA parameters and longitudinal LA deformation parameters between the two groups at rest. LAe SR and LAs SR were significantly lower in patients with obstructive CAD at peak dobutamine dose (LAe SR 2,076 0,76 s-1 vs 1,686 0,63 s- 1, p=0.04; LAs SR 2,686 1,51 s-1 vs 2,056 0,98 s- 1, p=0.05). There were no significant differences between other LA deformation parameters at peak dobutamine dose. According to .[...] |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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