Disease or Syndrome
aortic aneurysm
a·or·tic an·eu·rysm [ ey-awr-tik an-yuh-riz-uhm ]
Subclass of:
Aortic Diseases;
Aneurysm
Definitions related to aortic aneurysm:
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(aorta aneurysm) Sac formed by the dilatation of the wall of the aorta.CRISP ThesaurusNational Institutes of Health, 2006
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A sac formation resulting from the localized dilatation of the wall of the aorta.NCI ThesaurusU.S. National Cancer Institute, 2021
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An abnormal balloon- or sac-like dilatation in the wall of AORTA.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death. Most aneurysms are in the aorta, the main artery that runs from the heart through the chest and abdomen. There are two types of aortic aneurysm: Thoracic aortic aneurysms (TAA) - these occur in the part of the aorta running through the chest; Abdominal aortic aneurysms (AAA) - these occur in the part of the aorta running through the abdomen. Most aneurysms are found during tests done for other reasons. Some people are at high risk for aneurysms. It is important for them to get screening, because aneurysms can develop and become large before causing any symptoms. Screening is recommended for people between the ages of 65 and 75 if they have a family history, or if they are men who have smoked. Doctors use imaging tests to find aneurysms. Medicines and surgery are the two main treatments. NIH: National Heart, Lung, and Blood InstituteMedlinePlusU.S. National Library of Medicine, 2021
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Aortic dilatation refers to a dimension that is greater than the 95th percentile for the normal person age, sex and body size. In contrast, an aneurysm is defined as a localized dilation of the aorta that is more than 150 percent of predicted (ratio of observed to expected diameter 1.5 or more). Aneurysm should be distinguished from ectasia, which represents a diffuse dilation of the aorta less than 50 percent of normal aorta diameter.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Aneurysms are abnormal dilations of arteries caused by weakening of the arterial wall. Common causes include hypertension, atherosclerosis, infection, trauma, and hereditary or acquired connective tissue disorders (eg, Marfan syndrome, Ehlers-Danlos syndrome). Aneurysms are usually asymptomatic but can cause pain and lead to ischemia,...Merck & Co., Inc., 2020
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An aortic aneurysm is an abnormal bulge that occurs in the wall of the major blood vessel (aorta) that carries blood from your heart to your body. Aortic aneurysms can occur anywhere in your aorta and may be tube-shaped (fusiform) or round (saccular).Mayo Foundation for Medical Education and Research
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