Table 3.

RV areas and fractional area of change in preterm infants by weight

Weight (grams)	Infants (n)	RVEDA (cm2)	RVESA (cm2)	RV %FAC
600	3	1.5 ± 0.2	1.2 ± 0.1	23 ± 2
700	3	1.9 ± 0.3	1.3 ± 0.2	29 ± 8
800	6	1.8 ± 0.2	1.3 ± 0.1	27 ± 5
900	6	1.9 ± 0.2	1.3 ± 0.2	28 ± 7
1000	5	2.3 ± 0.4	1.4 ± 0.2	36 ± 6
1100	11	2.3 ± 0.5	1.5 ± 0.3	34 ± 5
1200	10	2.3 ± 0.4	1.6 ± 0.2	34 ± 6
1300	13	2.4 ± 0.5	1.7 ± 0.4	34 ± 6
1400	14	2.6 ± 0.4	1.8 ± 0.3	33 ± 4
1500	13	2.7 ± 0.4	1.8 ± 0.4	36 ± 4
1600	4	2.8 ± 0.3	2.0 ± 0.2	37 ± 5
1700	10	2.9 ± 0.4	1.9 ± 0.3	36 ± 5
1800	5	3.2 ± 0.7	2.3 ± 0.5	33 ± 4
1900	6	3.2 ± 0.7	2.2 ± 0.6	34 ± 4
2000	9	3.4 ± 0.5	2.4 ± 0.3	35 ± 6
2100	5	3.5 ± 0.6	2.3 ± 0.4	37 ± 6
2200	8	3.6 ± 0.4	2.3 ± 0.3	37 ± 7
2300	8	3.8 ± 0.7	2.5 ± 0.5	35 ± 4
2400	6	3.8 ± 0.6	2.7 ± 0.5	36 ± 5
2500	7	3.9 ± 0.3	2.6 ± 0.4	34 ± 7
2600	4	4.3 ± 0.7	3.1 ± 0.6	34 ± 5
2700	4	4.4 ± 0.4	2.8 ± 0.2	36 ± 3

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