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E-ISSN : 2148-9696
Crescent Journal of
Medical and Biological Sciences
Jan 2022, Vol 9, Issue 1
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Original Article
The Association Between Left Atrial Strain and Left Ventricular Ejection Fraction in a 3D Heart Model in Patients With Severe Aortic Stenosis
Kamran Mohammadi1,2, Azin Alizadehasl2, Mehrdad Jafari Fesharaki3, Reza Hajizadeh4, Farshad Javadieh2
1Cardiovascular Resch Center, Tabriz University of Medical Sciences, Tabriz, Iran.
2Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
3Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4Department of Cardiology, Urmia University of Medical Sciences, Urmia, Iran


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Keywords : Left atrial strain, Left ventricular ejection fraction, 3D heart model, Severe aortic stenosis
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Abstract
Objectives: Aortic stenosis (AS) is a common valvular disease diagnosed in nearly 3% of adults who are older than 65 years. Echocardiography is the main modality for the diagnosis of an AS. The left atrial (LA) strain can help in a better evaluation of heart failure and predict left-side pressures. Considering that a left ventricular ejection fraction (LVEF) is an important factor for cardiologists regarding better selection of surgery treatment in these patients, the evaluation of the LA strain and LVEF, as well as their association can help physicians in a better evaluation of borderline patients who are asymptomatic with borderline LVEF.

Materials and Methods: Atrial mechanics were prospectively evaluated in 43 consecutive patients with severe AS referring to Shahid Rajaee Heart Center (Tehran, Iran), echocardiography laboratory for their regular valve disease follow-ups from July 2018 to February 2019. The LA strain, the LVEF, and their association were analyzed by a 3D heart model.

Results: The mean age of patients was 56.6±18.9 years. The LA strain did not have any association with age (P = 0.09). In addition, no association was found among LA strains, hypertension, and smoking in patients with severe AS (P > 0.05). Finally, the results showed that an LA strain had a significant association with a 3D method of LVEF (P = 0.02).

Conclusions: In general, an LA longitudinal strain has a significant association with a 3D LVEF in patients with severe AS and can help physicians better evaluate patients with severe AS.

 

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