Table 5.

Echocardiography indices of the study population.

Parameters	Infants with hsPDA (n = 30)	Infants without PDA (n = 18)	p-value
La/Ao ratio, day 1 median (range)	1.7 (1.2–2.8)	1.3 (1–2.3)	0.009
La/Ao ratio, day 2 median (range)	1.6 (1.3–3.4)	1.2 (0.9–1.8)	<0.001
La/Ao ratio, day 3 median (range)	1.6 (1.2–2.9)	1.2(0.9–1.5)	<0.001
PDA diameter/weight, day 1 median (range)	2.1 (1.1–3.7)	1.9 (1.2–2.7)	0.27
PDA diameter/weight, day 2 median (range)	2.1 (1.1–3.8)	1.6 (1.3–2.3)	<0.001
PDA diameter/weight, day 3 median (range)	2.3 (0.9–3.5)	1.3 (1.1–2.1)	<0.001

La, left atrium; Ao, aorta.