Pulmonary hypertension
Dr. Ronald Day, a cardiologist at Primary Children's Medical Center, says it is a condition that is as diverse as the people who have it. It can show up in the young, as it did with Katy. It can run in families or it may not. It may first appear in adulthood. It can be its own disease, called primary pulmonary hypertension, or it can be incident to other diseases, arising as a complication of an atrial or ventricular septal defect or an inflammatory or collagen vascular disease, for instance. It can be related to emphysema or bronchitis, HIV or liver disease.
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