Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance

Objective: The correlation between left atrial (LA) enlargement and obesity has been previously reported. However, most studies primarily evaluated LA diameter using echocardiography, which is less accurate and reliable than assessing LA volume with cardiac magnetic resonance (CMR). This study aime...

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Main Authors: Solos Jaturapisanukul, Yodying Kaolawanich, Methat Meechuen, Thananya Boonyasirinant
Format: Article
Language:English
Published: Faculty of Medicine Siriraj Hospital 2025-02-01
Series:Siriraj Medical Journal
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Online Access:https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/271916
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author Solos Jaturapisanukul
Yodying Kaolawanich
Methat Meechuen
Thananya Boonyasirinant
author_facet Solos Jaturapisanukul
Yodying Kaolawanich
Methat Meechuen
Thananya Boonyasirinant
author_sort Solos Jaturapisanukul
collection DOAJ
description Objective: The correlation between left atrial (LA) enlargement and obesity has been previously reported. However, most studies primarily evaluated LA diameter using echocardiography, which is less accurate and reliable than assessing LA volume with cardiac magnetic resonance (CMR). This study aimed to explore the correlation between obesity and LA volume by using CMR imaging. Materials and Methods: We prospectively enrolled consecutive eligible patients aged 18 years or older who underwent CMR at a tertiary academic hospital. Clinical variables, including body mass index (BMI), were collected from the medical records. LA volume classification was based on the current guideline recommendations. Results: A total of 140 patients (41% men), with a mean age of 66.5 ± 10.5 years, were studied. The mean BMI was 25.7 ± 4.2 kg/m2. CMR parameters revealed an LA volume of 75.7 ± 22.5 mL, a left ventricular (LV) ejection fraction of 71.1 ± 9.5%, and an LV mass index of 46.1 ± 27.4 g/m2. Univariable analysis indicated that the factors affecting LA volume included BMI (r = 0.3, p < 0.001), LV mass index (r = 0.3, p = 0.001), waist circumference (r = 0.3, p < 0.001), male sex (p = 0.01), and hypertension (p = 0.01). In stepwise multivariable analysis, BMI (p < 0.001), LV mass index (p = 0.02), and male sex (p = 0.03) were independently associated with LA volume. Conclusion: Obesity, as represented by BMI, was independently associated with LA enlargement. Other independent factors correlated with LA volume included the LV mass index and male sex.
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spelling doaj-art-656712219bbf465f90fd80decc20e5012025-02-03T07:37:10ZengFaculty of Medicine Siriraj HospitalSiriraj Medical Journal2228-80822025-02-0177210.33192/smj.v77i2.271916Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic ResonanceSolos Jaturapisanukul0Yodying Kaolawanich1Methat Meechuen2Thananya Boonyasirinant3Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Division of Nephrology, Department of Internal Medicine, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, ThailandDepartment of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Division of Cardiology, Department of Medicine Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, ThailandDepartment of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Division of Cardiology, Department of Medicine Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, ThailandDepartment of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Division of Cardiology, Department of Medicine Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand Objective: The correlation between left atrial (LA) enlargement and obesity has been previously reported. However, most studies primarily evaluated LA diameter using echocardiography, which is less accurate and reliable than assessing LA volume with cardiac magnetic resonance (CMR). This study aimed to explore the correlation between obesity and LA volume by using CMR imaging. Materials and Methods: We prospectively enrolled consecutive eligible patients aged 18 years or older who underwent CMR at a tertiary academic hospital. Clinical variables, including body mass index (BMI), were collected from the medical records. LA volume classification was based on the current guideline recommendations. Results: A total of 140 patients (41% men), with a mean age of 66.5 ± 10.5 years, were studied. The mean BMI was 25.7 ± 4.2 kg/m2. CMR parameters revealed an LA volume of 75.7 ± 22.5 mL, a left ventricular (LV) ejection fraction of 71.1 ± 9.5%, and an LV mass index of 46.1 ± 27.4 g/m2. Univariable analysis indicated that the factors affecting LA volume included BMI (r = 0.3, p < 0.001), LV mass index (r = 0.3, p = 0.001), waist circumference (r = 0.3, p < 0.001), male sex (p = 0.01), and hypertension (p = 0.01). In stepwise multivariable analysis, BMI (p < 0.001), LV mass index (p = 0.02), and male sex (p = 0.03) were independently associated with LA volume. Conclusion: Obesity, as represented by BMI, was independently associated with LA enlargement. Other independent factors correlated with LA volume included the LV mass index and male sex. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/271916cardiac magnetic resonancecorrelationleft atriumleft atrial volumeobesityoverweight
spellingShingle Solos Jaturapisanukul
Yodying Kaolawanich
Methat Meechuen
Thananya Boonyasirinant
Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
Siriraj Medical Journal
cardiac magnetic resonance
correlation
left atrium
left atrial volume
obesity
overweight
title Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
title_full Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
title_fullStr Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
title_full_unstemmed Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
title_short Correlation between Obesity and Left Atrial Enlargement in Patients Using Cardiac Magnetic Resonance
title_sort correlation between obesity and left atrial enlargement in patients using cardiac magnetic resonance
topic cardiac magnetic resonance
correlation
left atrium
left atrial volume
obesity
overweight
url https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/271916
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AT yodyingkaolawanich correlationbetweenobesityandleftatrialenlargementinpatientsusingcardiacmagneticresonance
AT methatmeechuen correlationbetweenobesityandleftatrialenlargementinpatientsusingcardiacmagneticresonance
AT thananyaboonyasirinant correlationbetweenobesityandleftatrialenlargementinpatientsusingcardiacmagneticresonance