32 Correlation Between Left Atrial Volume Index and Spatial QRS-T Angle in Hypertensive Heart Disease Patients. (November 2017)

• Record Type: Journal Article
• Authors: Tanaka, Michael; Achmad, Chaerul; Sihite, Teddy Arnold; Purnomowati, Augustine; Aprami, Toni Mustahsani
• Is Part Of: Journal of hypertension. Volume 35(2017)Supplement 3
• Publication Date: 2017-11
• Subjects: Hypertension -- Periodicals; Hypertension -- Periodicals; 616.132005
• DOI: 10.1097/01.hjh.0000527414.29139.dc
• Languages: English
• ISSNs: 1473-5598

Abstract

Abstract : Background: Hypertension causes left ventricular remodeling that can manifest as diastolic dysfunction. Left atrial size has been known as an accurate diastolic function parameter that shows left ventricular filling pressure chronically. Remodeling also causes ventricular heterogenity and alters the depolarization and repolarization process as shown by the wide spatial QRS-T angle. Objective of this study wasto assess correlation between left atrial volume index (LAVI) and spatial QRS-T angle in hypertensive heart disease patients. Methods: This cross-sectional study was conducted in dr. Hasan Sadikin hospital Bandung from June to September 2016 with hypertensive heart disease patients as the subject. LAVI was calculated by echocardiography using biplane area length method and indexed to body surface area. Spatial QRS-T angle was measured from standard surface ECG using Kors regression matrix method. Pearson's correlation was used to analyze the correlation between LAVI and spatial QRS-T angle. Results: Thirty seven hypertensive heart disease patients were included in this study (70.3% female, mean age 58 ± 9 years old). Mean LAVI was 26.96 ± 7.95 ml/m 2 and median spatial QRS-T angle was 28.52°(2.21–118.25°). There was a correlation between LAVI and spatial QRS-T angle (r = 0.479; p = 0.001). Left ventricular hypertrophy with typical strain showed in ECG had higher LAVI and wider spatial QRS-T angle. This was the first study that analyzed the correlation between LAVI and spatial QRS-T angle in hypertensive heart disease patients. Conclusion: Left atrial volume index was significantly correlated with spatial QRS-T angle in hypertensive heart disease patients.