Value of bedside echocardiography in predicting persistent patency of the ductus arteriosus during the early postnatal period in very low birth weight infants.

Objectives: To study the value of bedside echocardiography in predicting persistent patency of the ductus arteriosus during the early postnatal period in very low birth weight (VLBW) infants.

Methods: A retrospective analysis was performed for 51 VLBW infants who were admitted from March 2020 to June 2021, with an age of ≤3 days and a length of hospital stay of ≥14 days. According to the diameter of patent ductus arteriosus (PDA) on days 14 and 28 after birth, the infants were divided into three groups: large PDA group (PDA diameter ≥2 mm), small PDA group (PDA diameter <2 mm), and PDA closure group (PDA diameter =0 mm).

[Clinical features of neonatal enterovirus infection].

Objective: To study the clinical features of neonatal enterovirus infection, especially severe enterovirus infection.

Methods: A retrospective analysis was performed for the clinical data of 244 neonates with enterovirus infection. According to the severity of infection, they were divided into a common infection group with 231 neonates and a severe infection group with 13 neonates.