University of California San Francisco

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Heart Valve Disease
Tetralogy of Fallot
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Patent Ductus Arteriosus

Patent ductus arteriosus (PDA) is a heart problem that occurs soon after birth in some babies. In PDA, abnormal blood flow occurs between two of the major arteries connected to the heart. Before birth, the two major arteries-the aorta and the pulmonary (PULL-mun-ary) artery-…

Pericarditis

Pericarditis (PER-i-kar-DI-tis) is a condition in which the membrane, or sac, around your heart is inflamed. This sac is called the pericardium (per-i-KAR-de-um). The pericardium holds the heart in place and helps it work properly. The sac is made of two thin layers of tissue…