aortic cystic medionecrosis

aortic [a-or´tik]

pertaining to the aorta.

aortic arch syndrome any of a group of disorders adding to occlusion of the arteries arising from the aortic arch; such occlusion may be caused by atherosclerosis, arterial embolism, or other conditions. See also pulseless disease.

aortic septal defect a congenital anomaly in which there is abnormal communication between the ascending aorta and the pulmonary artery just above the semilunar valves.

aortic

pertaining to or emanating from the aorta. See also aortic arch.

aortic aneurysm

occurs most often in dogs, where it is caused by Spirocerca lupi larvae, turkeys and primates, causing dyspnea, cyanosis and coughing. May be congenital affecting the aortic trunk and the arch sometimes associated with aneurysm of an aortic sinus. See also copper nutritional deficiency.

aortic aneurysm, inherited

see inherited aortic aneurysm.

aortic annulus fibrosus

the fibrous ring in the wall of the root of the aorta. In the bovine heart the ring carries the ossa cordis (see os² cordis).

aortic base rupture

rupture of the vessel just above the semilunar valves.

aortic bodies

small neurovascular structures on either side of the aorta in the region of the aortic arch. The left body is located at the angle between the left subclavian artery and the aorta, and the right at the junction of the right subclavian and right common carotid arteries. They contain chemical receptors which send impulses through the afferent branches of the vagus nerve and are involved in regulating respiration so as to ensure an appropriate partial pressure of oxygen in the arterial blood.

aortic body tumors

single or multiple nodules within the pericardial sac near the base of the heart. Malignant tumors may invade the anterior mediastinum. Called also heart base tumor.

aortic bulb

the dilated part of the aorta at its origin, caused by the swellings of the aortic sinuses.

aortic coarctation

constriction of the aorta at the site of entry of the ductus arteriosus causing a syndrome similar to that of stenosis of the aortic valve.

aortic cystic medionecrosis

pools of ground substance within the elastic media of the aorta. May predispose to arterial aneurysm but this material is present in the aortas of normal horses.

aortic depressor nerve

pressure receptors in the aortic arch and thoracic aorta which assist in maintaining circulatory equilibrium by communicating pressure changes through the aortic depressor nerve, an afferent branch of the vagus nerve; stimulation causes heart slowing and vasodilation.

aortic dextraposition

the aorta receives blood from the right ventricle. There are a number of variations of the basic defect. The common one is the aorta overriding the septum, which is defective, so that the aorta receives blood from both ventricles. The clinical syndrome includes dyspnea and cyanosis from birth, usually with a loud systolic murmur. Affected animals are not viable.

aortic embolism

occurs in cats in association with feline cardiomyopathy and rarely in dogs. Acute pain with paresis to paralysis in the hindlegs, cold, cyanotic feet and no femoral pulse are signs of the condition.

aortic hiatus

an opening in the diaphragm through which the aorta, thoracic duct, the right and/or left azygos veins pass.

aortic-ilial embolism

see iliac artery thrombosis.

aortic mineralization

is one of the early lesions in poisoning by plants that induce mineralization of tissues, e.g. solanummalacoxylon. In combination with lesions in the myocardium causes a syndrome of congestive heart failure.

aortic nerve

see cardiac depressor nerve.

aortic palpation

the aorta is easily palpable per rectum in cattle and horses; valuable as a clinical sign only in cases of thrombosis at the bifurcation; incision at this point has been used as a means of euthanasia in an emergency.

aortic-pulmonary window

an anomaly of the aorta in which there is an opening between the ascending portion of the aorta and the pulmonary artery; clinical signs are similar to those of patent ductus arteriosus, but surgical correction is much more difficult.

aortic regurgitation

see valvular regurgitation.

aortic root

the part of the aorta attached to the atrioventricular fibrous rings and myocardium.

aortic rupture

1. in horses is caused by weakening of the wall of the aorta by migrating strongyle larvae. In cattle the cause may be onchocerciasis, in pigs experimental diets deficient in copper. Sudden death results from cardiac tamponade or dissecting aneurysm into the ventricular muscle.

2. sudden death in growing turkeys due to dissecting aneurysmal rupture of the aorta and death due to internal hemorrhage; the cause is unknown. Copper deficiency is suspected as a cause in several animal species.

aortic sac

the merged ventral aortae of the embryo which supplies blood to the aortic arches.

aortic septal defect

a congenital anomaly in which there is abnormal communication between the ascending aorta and the pulmonary artery just above the semilunar valves.

aortic sinus

the three pouch-like dilatations of the aortic bulb which carry the cusps of the aortic valve. The coronary arteries arise from the left caudal and the cranial sinuses.

aortic subvalvular stenosis

in dogs and pigs is possibly an inherited defect. Characterized by stenosis of the aorta just below the semilunar valves. In pigs, it causes congestive heart failure in the newborn, but in affected dogs severity increases with age so that clinical effects may not be apparent until the patients are older.

aortic thromboembolism

thrombosis is the usual forerunner of embolism, pieces of the thrombus breaking off the main mass and lodging in more distal parts of the vascular system. See also aortic embolism (above), verminous mesenteric arteritis, iliac artery thrombosis.

Aortic thromboembolism in a cat. By permission from Nelson RW, Couto CG, Small Animal Internal Medicine, Mosby, 2003

aortic valve

the valve at the entrance to the aorta from the left ventricle made up of three semilunar leaflets or valvulae.

aortic valve rupture

rupture of the medial cusp is recorded as a cause of sudden death in horses usually as a sequel to endocarditis.

aortic valvular disease

stenosis is rarely an acquired disorder, but may be an inherited defect in several species. In cats and rarely dogs, restrictive cardiomyopathy may be a cause of subvalvular aortic obstruction. Valvular incompetence may be congenital or acquired and results in diastolic overloading of the left ventricle with a characteristic water-hammer pulse and diastolic murmur. See also aortic stenosis, aortic subvalvular stenosis (above).

aortic vestibule

the cranial part of the left ventricular cavity leading to the root of the aorta in the avian heart.

Patient discussion about aortic.

Q. Is there a good screening test for aortic abdominal aneurysm? A friend of mine was diagnosed with an aortic abdominal aneurysm. I am afraid i might have this condition too. is there any screening test that is good for me?

A. The answer to your question depends on your age your sex and your history of smoking. 3 years ago when my husband was diagnosed with an aortic abdominal aneurysm our GP said that the screening is good only for males age 65-75 that smoke.
Go to your GP and ask him even if you are not in those criteria, maybe the rules have changed.

Q. Why does Aortic stenosis causes an enlarged heart? My father was recently diagnosed as suffering from enlarged heart due to his Aortic stenosis. what is the connection between those to conditions? As far as I understand that aortic stenosis mean that the aortic valve is too small not too large...

A. The connection between those pathologies is mainly mechanical. because your father's valve is smaller, less amount of blood can be ejected in every heart bit. because of that the heart is working harder. the heart is a muscle and like other muscles in our body when it "works out" it gets bigger

Q. How does alcohol affect someone who has been diagnosed with aortic valve stenosis? My brother has been diagnosed with aortic valve stenosis and also is a smoker and does drink alcohol on the weekends. He knows that he should stop smoking but what about the effects of alcohol? Does this also contribute to his stenosis?

A. Alcohol changes blood pressure and speed of the heart- that is not a good idea if you have an Aortic stenosis. Could probably makes things worst. I would avoid alcohol… but he should ask GP.

Mentioned in	?		Medical browser	?		Full browser	?
aortic aneurysm aortic arch aortic arch syndrome aortic bulb aortic coarctation aortic dissection aortic hiatus aortic insufficiency aortic murmur aortic regurgitation aortic septal defect aortic sinus aortic stenosis aortic valve aortic vestibule apex murmur arterial murmur Austin Flint murmur cardiac murmur			Anxira Any Willing Provider Policy anything new, fear of Anzemet Anzepam AO Foundation (Association for the Study of Internal Fixation) AOA AOC AODM AOMA AOmegaA Aonyx AORN aorta aortalgia aortic aortic aneurysm aortic angiogram aortic arch aortic arch syndrome aortic atresia aortic balloon pump aortic body aortic bulb aortic coarctation aortic cystic medionecrosis aortic dissection aortic ectasia aortic foramen aortic glycosaminoglycans aortic hiatus aortic insufficiency aortic murmur Aortic Nipple Sign aortic notch aortic obstruction aortic occlusion aortic ostium aortic plexus aortic reconstruction aortic regurgitant murmur aortic regurgitation aortic septal defect aortic sinus aortic stenosis aortic thrill aortic ultrasound aortic valve Aortic Valve Insufficiency aortic valve stenosis aortic valvular stenosis			aortic b aortic b aortic balloon pump Aortic baroreceptors Aortic baroreceptors aortic base rupture aortic base rupture Aortic bodies Aortic bodies Aortic bodies Aortic bodies Aortic bodies aortic body aortic body aortic body tumors aortic body tumors Aortic Bovine Arch Endothelial aortic bulb aortic bulb aortic bulb Aortic Carboxypeptidase-Like Protein aortic cartilage aortic cartilage aortic cartilage Aortic coarctation Aortic coarctation Aortic coarctation Aortic coarctation Aortic Coronary Bypass Aortic Cross-Clamping aortic cystic medionecrosis aortic depressor nerve aortic depressor nerve Aortic Depressor Nerves Intact aortic dextraposition aortic dextraposition Aortic diseases Aortic diseases Aortic diseases aortic dissection aortic dissection aortic dissection aortic dissection aortic ectasia Aortic Effective Orifice Area aortic embolism aortic embolism Aortic End Diastolic Pressure Aortic Flow Time Velocity Integral aortic foramen aortic foramen aortic foramen aortic foramen Aortic Forward Flow Mapping Area Aortic glands Aortic glands aortic glomus aortic glomus aortic glomus aortic glycosaminoglycans Aortic hiatus

aortic (redirected from aortic cystic medionecrosis)

aortic
(redirected from aortic cystic medionecrosis)