Reference normal echocardiographic values in young male subjects

1. Refference Normal Values Of
Morphologic And Functional
2d-echocardiographic Parameters
Evaluated In A Group Of Young Healt
Adults
Authors: Al.Andritoiu, N.Gavrila
Military hospital CRAIOVA
Romania

2. Introduction
Despite an over two decades experience in echocardiography, Romanian cardiology do not knows
some reference studies involving health people
and also differing by age category
Romanian military cardiology also, needs some
modern studies based by evaluation with an actual
US- technique of the principal morphologic and
functional parameters, specific to the young adult
age

3. Objectives
determination by ultrasonographic investigation
of principal morphologic and functional cardiac
parameters, in a group of young adults without
heart diseases
need of reference standard values for our own
echo- laboratory and also in Romanian cardiology
literature

4. Method
SIEMENS SONOLINE Versa Plus-echocardiograph
2.5 MHz- electronic ultrasound probe
Standard approach
- left parasternal LAX- view
- apical - 4 C and apical 5- C views
the pacient positioned in left- lateral decubitus at an
angle of 90 degrees
the measurements were made in 2D-Echo
ASE recommendations were respected
Spectral Doppler (PWD) with theta angle correction

5. The Study Group
N = 80
Males
Mean age (yr.)…….. 21.35+/-1.76
(18 - 29)
Height (cm)……….….175+/-6.35
(163 - 189)
Weight (kg)…………..72+/-13.75
( 53 - 117)
BS Area (m2)...…..…1.86+/- 0.17
(1.56 - 2.41)
BMI (kg/m2)………..22.66+/- 3.68
( 21 - 37 )

6. Statistics
The results were represented as:
- Mean value
- Standard deviation
- Maximal value
- Minimal value
The correlations were determined by Pearson
equation

7. Results
1. Morphologic Parameters
Aor Aov IVSd PWd LVd LVs
0.85
LA
RA
3.1
2. 2
2.62
3.28
Mean 1.94
2.85
0.84
Sd
0.17
0.26
0.06
0.06
0.36
0.38
0.33 0.42
0.32
Max
2.17
2.9
1
1
5.5
4.2
3
3.9
3.8
Min
1.6
2.1
0.7
0.7
3.4
2.5
1.6
1.9
2.8
Results are expressed in cm.
4.45
RD

8. Results
2. Lv Mass Indicators
LV Mass(g) =1.04((LVd+IVSd+PWd)3-LVd)3-14 (Devereux)
Mean LV mass = 134 +/- 27,4 g
Max. LV mass = 235 g
Min. LV mass = 70 g
LV Mass Index = LV Mass (g) / BSA(m2)
Mean LVMIx = 71,54+/-14.2 g/m2
Max. LVMIx = 110 g/m2
Min. LVMIx = 45 g/m2

9. Results
3. LV Diastolic Function
Pick E
(m/s)
Pick A
(m/s)
E/A
IVRT
(ms)
EF-S
(mm/s)
Mean
0.91
0.51
1.91
64.86
121.4
Sd
0.17
0.13
0.36
9.04
19.6
Max.
1.37
0.79
2.6
90
165
Min.
0.56
0.25
1.13
50
75

10. Results
4. LV Systolic Function
(Evaluation by PWD in LV Ejection Tract)
Vmx
(m/s)
ACC
(m/s)
AT
(ms)
VTI
(cm)
LVET
(ms)
Mean
1.11
15.81
75.14
19.4
Sd
0.19
2.02
8.22
3.7
28.36
Max.
1. 8
21.5
90
28
300
Min.
0. 8
12.12
50
14.5
180
267.5

11. Statistical Corelations
BSA vs LV Mass ; r = 0.51 (p<0.01)
BMI vs LV Mass ; r = 0.42 (p<0.01)

12. Conclusions
The morphologic parameters found in our study
group are similar with the literature data; they are
related with somatic indicators of the subjects
which were studied
In young adults, LV systolic and diastolic functional
parameters appear with high amplitudes in comparison with the values reported in health adults and
olds; these data are useful in a correct estimation of
LV hemodynamic performance