. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: J Am Soc Echocardiogr. 2015 Mar 7;28(5):559–569. doi: 10.1016/j.echo.2015.01.024

Table 2.

Change in RV areas and fractional area of change in the first month of age

	Birth	One month	Slope of change	P-value
Full term	(n=25)	(n=35)
RVEDA (cm2)	3.7 ± 0.7	4.8 ± 0.6	0.38	<0.001
RVESA (cm2)	2.4 ± 0.4	2.9 ± 0.4	0.26	<0.001
RV FAC	33 ± 5	39 ± 4	1	<0.001
Preterm Infants	(n=20)	(n=20)
RVEDA (cm2)	1.8 ± 0.2	2.3 ± 0.2	0.12	<0.001
RVESA (cm2)	1.3 ± 0.2	1.5 ± 0.3	0.05	<0.001
RV FAC	26 ± 4	35 ± 5	1.8	<0.001

Data are presented as mean ± SD

RVEDA, Right ventricle end diastolic area

RVESA, Right ventricle end systolic area

RV FAC, Right ventricle fractional area of change