Persistent Pulmonary Hypertension- Newborn

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Persistent pulmonary hypertension of the newborn (PPHN) can occur in babies when the circulatory system does not adapt to conditions outside the mother’s uterus. Before birth, the baby’s oxygen needs are met through the placenta in the mother’s uterus. After birth, the baby’s lungs take over this function. After being born, the baby inflates its lungs with its first breaths. Then, a series of changes take place to decrease resistance to blood flowing through the newborn’s lungs. This allows the…

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A ventricular septal defect (VSD) refers to a hole in the ventricular septum, the wall dividing the left and right ventricles of the heart. VSDs are the most common congenital cardiac anomalies. They are found in30-60% of all newborns with a congenital heart defect, or about 2-6 per 1000 births. During heart formation, when the heart begins life as a hollow tube, it begins to partition, forming a septa. If this does not occur properly it can lead to an…

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