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Aortic Aneurysm
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D001014 |
[An abnormal balloon- or sac-like dilatation in the wall of AORTA.
] |
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Aortic Aneurysm, Abdominal
|
D017544 |
[An abnormal balloon- or sac-like dilatation in the wall of the ABDOMINAL AORTA which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.
] |
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Aortic Aneurysm, Thoracic
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D017545 |
[An abnormal balloon- or sac-like dilatation in the wall of the THORACIC AORTA. This proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.
] |
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Aortic Arch Syndromes
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D001015 |
[Conditions resulting from abnormalities in the arteries branching from the ASCENDING AORTA, the curved portion of the aorta. These syndromes are results of occlusion or abnormal blood flow to the head-neck or arm region leading to neurological defects and weakness in an arm. These syndromes are associated with vascular malformations; ATHEROSCLEROSIS; TRAUMA; and blood clots.
] |
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Aortic Bodies
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D001016 |
[Small clusters of chemoreceptive and supporting cells located near the ARCH OF THE AORTA; the PULMONARY ARTERIES; and the CORONARY ARTERIES. The aortic bodies sense PH; CARBON DIOXIDE; and OXYGEN concentrations in the BLOOD and participate in the control of RESPIRATION. The aortic bodies should not be confused with the PARA-AORTIC BODIES in the abdomen (which are sometimes also called aortic bodies).
] |
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Aortic Coarctation
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D001017 |
[A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.
] |
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Aortic Diseases
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D001018 |
[Pathological processes involving any part of the AORTA.
] |
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Aortic Rupture
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D001019 |
[The tearing or bursting of the wall along any portion of the AORTA, such as thoracic or abdominal. It may result from the rupture of an aneurysm or it may be due to TRAUMA.
] |
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Aortic Stenosis, Subvalvular
|
D001020 |
[A pathological constriction occurring in the region below the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.
] |
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Aortic Stenosis, Supravalvular
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D021921 |
[A pathological constriction occurring in the region above the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.
] |
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Aortic Valve
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D001021 |
[The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.
] |
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Aortic Valve Disease
|
D000082862 |
[Diseases involving the AORTIC VALVE functionality. Aortic valve disease often results in a backward and/or regurgitated blood flow into the LEFT VENTRICLE or a decreased blood flow from the heart. It includes congenital (e.g., bicuspid aortic valve), syndromic, and acquired (e.g., age-related, infection-associated) conditions.
] |
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Aortic Valve Insufficiency
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D001022 |
[Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).
] |
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Aortic Valve Prolapse
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D001023 |
[The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.
] |
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Aortic Valve Stenosis
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D001024 |
[A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.
] |
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Aortico-Ventricular Tunnel
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D000082903 |
[Congenital anomaly characterized by an extra-cardiac channel connecting the AORTA either to the right or left HEART VENTRICLE.
] |
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Aortitis
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D001025 |
[Inflammation of the wall of the AORTA.
] |
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Aortography
|
D001027 |
[Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.
] |
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Aortopulmonary Septal Defect
|
D001028 |
[A developmental abnormality in which the spiral (aortopulmonary) septum failed to completely divide the TRUNCUS ARTERIOSUS into ASCENDING AORTA and PULMONARY ARTERY. This abnormal communication between the two major vessels usually lies above their respective valves (AORTIC VALVE; PULMONARY VALVE).
] |
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Aotidae
|
D016645 |
[A family of the New World monkeys inhabiting the forests of South and Central America. There is a single genus (Aotus) and several species occurring in this family, including AOTUS TRIVIRGATUS (Northern night monkeys).
] |
