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Normal 2-Dimensional Strain Values of the Left Ventricle: A Substudy of the Normal Echocardiographic Measurements in Korean Population Study.

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Author(s)
Jin-Sun ParkChi Young ShimDae-Hee KimDae-Hee ShinGil Ja ShinSung Hee ShinKye Hun KimWoo-Shik KimSeung Woo ParkJae-Hyeong ParkJu-Hee LeeSang Yeub LeeJin-Oh ChoiMi-Seung ShinMi-Jeong KimHae Ok JungJeong Rang ParkIl Suk SohnHyungseop KimSeong-Mi ParkNam Jin YooJung Hyun ChoiHyung-Kwan KimGoo-Yeong ChoMi-Rae Lee
Keimyung Author(s)
Kim, Hyung Seop
Department
Dept. of Internal Medicine (내과학)
Journal Title
Journal of Cardiovascular Ultrasound
Issued Date
2016
Volume
24
Issue
4
Keyword
EchocardiographyStrainNormal populationReference value
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. Interventricular 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.
Keimyung Author(s)(Kor)
김형섭
Publisher
School of Medicine
Citation
Jin-Sun Park et al. (2016). Normal 2-Dimensional Strain Values of the Left Ventricle: A Substudy of the Normal Echocardiographic Measurements in Korean Population Study. Journal of Cardiovascular Ultrasound, 24(4), 285–293. doi: 10.4250/jcu.2016.24.4.285
Type
Article
ISSN
1975-4612
DOI
10.4250/jcu.2016.24.4.285
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/32446
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
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