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- Title
NORMAL 2-DIMENSIONAL STRAIN VALUES OF THE LEFT VENTRICLE: A SUBSTUDY OF THE NORMAL ECHOCARDIOGRAPHIC MEASUREMENTS IN KOREAN POPULATION STUDY.
- Authors
JAE-HYEONG PARK; JU-HEE LEE; SANG YEUB LEE; JIN-OH CHOI; MI-SEUNG SHIN; MI-JEONG KlM; HAE OK JUNG; JEONG RANG PARK; IL SUK SOHN; HYUNGSEOP KIM; SEONG-MI PARK; NAM JIN YOO; JUNG HYUN CHOI; HYUNG-KWAN KIM; GOO-YEONG CHO; MI-RAE LEE; JIN-SUN PARK; CHI YOUNG SHIM; DAE-HEE KIM; DAE-HEE SHIN
- Abstract
BACKGROUND: It is important to understand the distribution of 2-dimensional strain values in normal population. We performed a multicenter trial to measure normal echocardiographic values in the Korean population. METHODS: This was a substudy of the Normal echOcardiogRaphic Measurements in KoreAn population (NORMAL) study. Echocardiographic specialists measured frequently used echocardiographic indices in healthy people according to a standardized method at 23 different university hospitals. The strain values were analyzed from digitally stored images. RESULTS: Of a total of 1003 healthy participants in NORMAL study, 2-dimensional strain values were measured in 501 subjects (265 females, mean age 47 ± 15 years old) with echocardiographic images only by GE echocardiographic machines. Inter-ventricular septal thickness, left ventricular (LV) posterior wall thickness, systolic and diastolic LV dimensions, and LV ejection fraction were 7.5 ± 1.0 mm, 7.4 ± 1.0 mm, 29.9 ± 2.8 mm, 48.9 ± 3-6 mm, and 62 ± 4%, respectively. LV longitudinal systolic strain (LS) values of apical 4-chamber (A4C) view, apical 3-chamber (A3C) view, apical 2-chamber (A2C) view, and LV global LS (LVGLS) were -20.1 ± 2.3, -19-9 ± 2.7, -21.2 ± 2.6, and -20.4 ± 2.2%, respectively. LV longitudinal systolic strain rate (LVLSR) values of the A4C view, A3C view, A2C view, and LV global LSR (LVGLSR) were -1.18 ± 0.18, -1.20 ± 0.21, -1.25 ± 0.21, and -1.21 ± 0.21-s, respectively. Females had lower LVGLS (-21.2 ± 2.2% vs. -19.5 ± 1.9%,p < 0.001) and LVGLSR (-1.25 ± 0.18-s vs. -1.17 ± 0.15-s, p < 0.001) values than males. CONCLUSION: We measured LV longitudinal strain and strain rate values in the normal Korean population. Since considerable gender differences were observed, normal echocardiographic cutoff values should be differentially applied based on sex.
- Subjects
LEFT heart ventricle; ECHOCARDIOGRAPHY
- Publication
Journal of Cardiovascular Ultrasound, 2016, Vol 24, Issue 4, p285
- ISSN
1975-4612
- Publication type
Article
- DOI
10.4250/jcu.2016.24.4.285