A to Z: Coarctation of the Aorta (COA)enparentshttps://kidshealth.org/EN/images/headers/P-khAZDictionary-enHD-AR1.jpgLearn about coarctation of the aorta, a treatable congenital heart defect in which a person's aorta is narrowed at some point.coarctation, aorta, heart, congenital, defect, anomaly, COA, aortic, heart defect, high blood pressure, hypertension, blood vessels, veins, arteries10/16/201303/18/201909/02/201934b8a07e-b651-4e3c-8b8b-16c9dc1085b9https://kidshealth.org/ws/RadyChildrens/en/parents/az-coa.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>The aorta is the major artery that carries blood away from the <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/">heart</a> to the body. When someone has <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/coa.html/">coarctation</a> (ko-ark-TAY-shun) of the aorta (COA), it means the&nbsp;aorta is narrowed at some point.</p> <h3>More to Know</h3> <p>When part of the aorta is narrowed, the defect (coarctation) can affect the body's blood circulation because the left side of the heart has to work harder to pump blood through the narrowed aorta. Sometimes the narrowing is minor and might not even cause symptoms. In other cases, the aorta may be more constricted, placing a strain on the heart's left ventricle (the chamber that pumps blood to the aorta and out to the body).</p> <p>A coarctation can occur anywhere in the aorta, but most often is found just beyond the point where the arteries that carry blood to the upper body and head branch off from the aorta.</p> <h3>Keep in Mind</h3> <p>Doctors often recommend that COA be treated quickly, especially in teens and adults. The longer a COA is left untreated, the more likely it is that the person will have high blood pressure even after the COA is fixed. If it's left untreated indefinitely, the defect can be fatal in many people by the age of 40.</p> <p>Surgery and other procedures&nbsp;are used to treat&nbsp;COAs. These include removing the narrow section and reconnecting the two good ends of the aorta, or using a procedure (called balloon dilation or balloon angioplasty) to expand the narrow area.</p> <p><em>All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.</em></p>
A to Z: Atresia, AorticLearn about congenital defects and conditions that affect vessels, valves, and passages in the heart and other organs.https://kidshealth.org/ws/RadyChildrens/en/parents/az-atresia-aortic.html/531db6f2-fb45-4636-b661-0acb38aa6ca3
Coarctation of the AortaWhen someone has coarctation of the aorta, that person's aorta (the major blood vessel that carries blood away from the heart to the body) is narrowed at some point.https://kidshealth.org/ws/RadyChildrens/en/teens/coa.html/85306f7f-1430-420d-9c1b-d7128470a85e
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 and Circulatory SystemThe heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body's tissues.https://kidshealth.org/ws/RadyChildrens/en/teens/heart.html/fde8120a-c54e-4e57-94b8-fb4375c29487
Hypertension (High Blood Pressure)When someone has hypertension (high blood pressure), the heart has to pump harder and the arteries are under more strain as they carry blood.https://kidshealth.org/ws/RadyChildrens/en/parents/hypertension.html/50aff0df-c464-4613-9fa4-6d814ba43a64
The HeartYour heart beats and sends oxygen throughout your entire body. Find out how it works and how heart problems can be fixed.https://kidshealth.org/ws/RadyChildrens/en/kids/center/heart-center.html/d4cb468c-ba42-454a-94bf-4173f8e15a69
Turner SyndromeTurner syndrome is a genetic disorder that affects about 1 in every 2,500 girls. Learn more about the condition and how doctors treat it.https://kidshealth.org/ws/RadyChildrens/en/teens/turner.html/90e5a4f5-a4da-4e94-be47-d5d4e6f4ce21
Word! Blood PressureWhen you go to the doctor, a nurse might put a band around part of your arm and pump air into the band, blowing it up like a balloon.https://kidshealth.org/ws/RadyChildrens/en/kids/word-bloodpressure.html/7f4edbb6-fd97-41f6-ba4f-9bf0ddfe6f26
Your Heart & Circulatory SystemYour heart is a hard-working muscle. Find out more in this article for kids.https://kidshealth.org/ws/RadyChildrens/en/kids/heart.html/9730472f-2ef1-413a-92bf-041c533b9564
kh:age-allAgesOrAgeAgnostickh:clinicalDesignation-cardiologykh:genre-dictionarykh:primaryClinicalDesignation-cardiologyCardiology A to Zhttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/az-cardio/04be85fa-f4f5-44c2-a321-21821f326c6aChttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/c/fdabc7bf-e1f5-4c6b-9f0b-00e1f3eac955https://kidshealth.org/EN/images/buttons/P-atoZDictionary-enBT.jpg