ArticleThe international journal of cardiovascular imaging2024
Correlation of left atrial strain with invasively measured left ventricular end-diastolic pressure; determining LA strain cut-off value.
Article in The international journal of cardiovascular imaging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Mitral annular plane systolic excursion to left atrial volume ratio as a novel index to assess ventricular filling pressure in dogs with myxomatous mitral valve disease.Veterinary research communications · 2026Article
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9 authors.
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Abstract
Left atrium longitudinal strain (LAS) with speckle tracking method has been proposed as a non-invasive method for the assessment of left ventricular filling pressure and diastolic dysfunction. This study aimed to investigate left atrial strain compared to invasively measured left ventricular filling pressure. All Patients candidates for coronary angiography were consecutively recruited. LAS measured by transthoracic echocardiography. Left ventricular end-diastolic pressure (LVEDP) pressure was invasively measured. Current echocardiographic modalities for diastolic function evaluated. A total of 125 people were included. 45 patients had preserved ejection fraction (EF ≥ 50%) and 85 patients had reduced EF (EF < 50%) and compared two groups. LVEDP was significantly higher in reduced EF compared to preserved EF (p-value < 0.001). LA-reservoir and LA-booster strains were significantly lower in patients with reduced EF compared to preserved EF (p-value = 0.008, mean Reservoir = 16.4% ± 6.4, mean Reservoir = 19.5% ± 5.6, respectively) and (p-value = 0.009, mean Booster = 9.09% ± 4.0, mean Booster =11. 9% ± 4.3, respectively). LA 4ch-reservoir strain <14.4%, and LA 2ch-reservoir strain <14.1% were related to LVEDP≥20 mmHg (sensitivity 63.5% and specificity 75%) (sensitivity 77.9% and specificity of 60%) respectively. LAS is significantly lower in patients with elevated LVEDP (≥ 20mmHg). LAS is significantly lower in patients with reduced EF. Both LA-reservoir and LA-booster strains have a significant relation to predicting LVFP but LA-reservoir strain is more accurate. The mean LA-reservoir strain less than 12.4% is associated with LVEDP ≥ 20mmHg.
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