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In this paper, we report on the demonstration of a portable immunoassay system consisting of a small centrifugal microfluidic device driver (bento box) and a centrifugal microfluidic device made of polypropylene and fabricated by injection molding.

Background Transient tachypnea of the newborn (TTN) is a respiratory disorder that results from inadequate or delayed clearance of fetal lung fluid following delivery. At present, supportive care is generally practiced for the treatment of TTN. In this study, we focused on inhaled beta‐agonists for the treatment of TTN, and the aim was to verify the efficacy and the safety of inhaled procaterol for the treatment of TTN. Methods Inhaled procaterol or normal saline solution was administered to infants. Respiratory rate and mixed venous carbon dioxide (PvCO2) were evaluated as the primary outcomes. The duration of hospitalization, duration of oxygen therapy, and changes in respiratory support were evaluated as secondary outcomes. Results Thirty‐seven neonates diagnosed with TTN were randomly assigned to the procaterol group (n = 18) or the placebo group (n = 19). There were no differences in PvCO2 or respiratory rate between the two groups before and after intervention. Median duration of oxygen therapy (3 days; IQR, 3–6.5 days vs 2 days, IQR, 2–4.75 days; P = 0.13) and of hospitalization (15 days; IQR, 11.25–20 days vs 11 days, IQR, 8–15.5 days; P = 0.14) were not significantly different. Conclusions Inhaled procaterol was not effective for the treatment of TTN.

The aim of this study is to investigate whether it is possible to detect future behavioral and emotional problems in extremely low-birth-weight infants by evaluating the neonatal head magnetic resonance imaging (MRI) using a scoring system. This study included 62 extremely low-birth-weight infants born between April 2015 and March 2017 and those who had undergone MRI at 36 to 42 weeks of gestation. These subjects were administered with the Strength and Difficulties Questionnaire (SDQ) at age 4–5, and the patients who responded to the questionnaire were included in the study. A positive correlation was observed between the Global Brain Abnormality Score and Total Difficulties Score of the SDQ (r = 0.26, p = 0.038). However, no significant difference was observed between the median Global Brain Abnormality Score of the normal and borderline-range group and the Total Difficulties Score of the clinical-range group (p = 0.51). This study demonstrated the relationship between the MRI findings in the newborn period and the emotional and behavioral problems in early childhood, but it is not clinically useful as a predictive marker.

Key Clinical MessageThe causes of pleural effusions in children are various. This case demonstrates the importance of considering rib fractures associated with child abuse in the differential diagnosis of pleural effusion in infants.