A to Z: Truncus Arteriosusenparentshttps://kidshealth.org/EN/images/headers/P-khAZDictionary-enHD-AR1.jpgIn the womb, a child's heart may develop a single large artery rather than separate aortic and pulmonary arteries. Learn about the condition here.Truncus arteriosus, persistent truncus arteriosus, common truncus, truncus, heart, aorta, pulmonary artery, lungs, blood, right ventricle, left ventricle, congenital heart defects, ventricular septal defect, cyanosis, blue skin, heart murmur, heart palpitations, open-heart surgery01/05/201503/18/201909/02/2019d82edd24-52d1-4e61-ba92-cf68a9780d18https://kidshealth.org/ws/RadyChildrens/en/parents/az-truncus-arteriosus.html/<p><a href="https://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/"><img class="right" title="Parents image" src="https://kidshealth.org/EN/images/buttons/P-atoZDictionary-enBT.jpg" alt="A to Z Dictionary 500 Go" name="5093-P_ATOZDICTIONARY2_ENBT.JPG" /></a></p> <p><strong>May also be called: Persistent Truncus Arteriosus; Common Truncus; Truncus</strong></p> <p>Truncus arteriosus (TRUNG-kus ar-teer-ee-OH-sus) is a <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/if-heart-defect.html/">heart defect</a> that happens when a child is born with one large artery carrying blood to the lungs and body instead of two separate ones.</p> <h3>More to Know</h3> <p>Two arteries carry blood out of the <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/">heart</a>. The pulmonary artery carries oxygen-poor blood from the right ventricle to the lungs. The aorta carries oxygen-rich blood from the left ventricle to the rest of the body.</p> <p>In an embryo, the aorta and the pulmonary artery begin as a single vessel. During normal development, this large vessel splits in two to form the two arteries. If that split does not happen, the child is born with a single common blood vessel called the truncus arteriosus.</p> <p>The truncus arteriosus is attached to the heart over both the right ventricle and the left ventricle. A hole called a <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/vsd.html/">ventricular septal defect (VSD)</a> also exists between the two ventricles of the heart. All of these changes cause the oxygen-rich blood and oxygen-poor blood to get mixed together. This means the body gets less oxygen and more blood flowing to the lungs, which can cause breathing problems. Other symptoms of truncus arteriosus include a blue or purple tint to the skin, problems with&nbsp;feeding, failure to gain weight, sleepiness, excessive sweating, and an abnormal heartbeat.</p> <p>A child born with truncus arteriosus might not look sick right away. But if it goes untreated, truncus arteriosus can quickly lead to heart failure and other life-threatening complications. Most babies who have it will undergo surgery in the first few months of life. In some cases, more than one operation is needed to separate the aorta and pulmonary artery and repair any associated heart defects.</p> <h3>Keep in Mind</h3> <p>Untreated truncus arteriosus will cause death, often in the first year of life. Surgery to repair it is usually successful, and the outlook for children after surgery is good. However, many children need more surgeries as they grow, and all need to be watched closely to help prevent future complications.</p> <p><em>All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.</em></p>
Congenital Heart DefectsHeart defects happen when there's a problem with a baby's heart development during pregnancy. Most heart defects can be treated during infancy.https://kidshealth.org/ws/RadyChildrens/en/parents/if-heart-defect.html/3dd23fa7-906f-4df9-8638-7400b77bed42
Heart HealthAre you heart smart? Learn about this amazing muscle, including how to care for kids with heart conditions.https://kidshealth.org/ws/RadyChildrens/en/parents/center/heart-health-center.html/88f2105c-8446-4576-bb5e-078f57766557
Heart and Circulatory SystemThe heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/52398b6a-54a6-4272-a569-42ed5b12aeac
Patent Ductus Arteriosus (PDA)The ductus arteriosus is a blood vessel that connects two major arteries before birth and normally closes after a baby is born. If it stays open, the result is a condition called patent ductus arteriosus (PDA).https://kidshealth.org/ws/RadyChildrens/en/parents/patent-ductus-arteriosus.html/1220a363-ed10-4541-94c6-ecb923902cd8
Ventricular Septal Defect (VSD)Ventricular septal defect (VSD) — also known as a "hole in the heart" — is a congenital heart defect. Most VSDs are diagnosed and treated successfully.https://kidshealth.org/ws/RadyChildrens/en/parents/vsd.html/21135699-6b44-43bd-96b1-618186631849
kh:age-allAgesOrAgeAgnostickh:clinicalDesignation-cardiologykh:genre-dictionarykh:primaryClinicalDesignation-cardiologyCardiology A to Zhttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/az-cardio/04be85fa-f4f5-44c2-a321-21821f326c6aThttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/t/43c185a2-6bf4-4283-b27b-c17577050c89https://kidshealth.org/EN/images/buttons/P-atoZDictionary-enBT.jpg