Pulmonary hypertension is high blood pressure in the blood vessels supplying the lungs. In this study Andrew Berenz, from the University of Virginia, led a team of researchers looking into how pulmonary hypertension affects very-low-birth-weight babies in the first two weeks after their birth. Early pulmonary hypertension was linked to birth weight and having a black mother. Babies suffering from early pulmonary hypertension had a lower chance of survival and were more likely to suffer from lung problems later on.
You can read the abstract of this article here.