coarctation

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coarctation

 [ko″ahrk-ta´shun]
coarctation of aorta a congenital heart defect consisting of localized deformity of the tunica media of the aorta, causing narrowing (usually severe) of the lumen of the vessel
 Coarctation of the aorta. Flow patterns are normal but are diminished distal to the coarctation. Blood pressure is increased in vessels leaving the aorta proximal to the coarctation. From Betz et al., 1994.
.
reversed coarctation pulseless disease.

co·arc·ta·tion

(kō'ark-tā'shŭn),
A constriction, stricture, or stenosis.

coarctation

/co·arc·ta·tion/ (ko″ahrk-ta´shun) narrowing.
coarctation of aorta  a local malformation marked by deformed aortic media, causing narrowing of the lumen of the vessel.
reversed coarctation  Takayasu's arteritis.

coarctation

(kō′ärk-tā′shən)
n.
A narrowing or constricting, especially of the aorta or of a blood vessel.

coarctation

[kō′ärktā′shən]
a compression, shriveling, or stricture of the walls of a vessel, such as the aorta.

coarctation

A stricture or point of contraction. See Aortic coarctation.

co·arc·ta·tion

(kō'ahrk-tā'shŭn)
A constriction, stricture, or stenosis, particularly of the aorta.

coarctation

A constriction or narrowing, especially of a blood vessel.

coarctation

arterial stenosis

coarctation

stricture or narrowing.

coarctation of aorta
a localized malformation characterized by deformity of the tunica media of the aorta, causing narrowing, usually severe, of the lumen of the vessel. See also aortic coarctation.
reversed coarctation
pulseless disease.
References in periodicals archive ?
Of the four patients that died two patients had an isolated coarctation repair and the other two patients had an additional PAB.
The rate of reintervention for coarctation was 8% of the total surviving 34 patients.
Delayed detection of coarctation in infancy: implications for timing of newborn follow-up.
Coarctation of the aorta in the newborn: a clinical study.
The CP stent-short, long, covered-for the treatment of aortic coarctation, stenosis of pulmonary arteries and caval veins, and Fontan anastomosis in children and adults: an evaluation of 60 stents in 53 patients.
Role of transcatheter therapy in the treatment of coarctation of the aorta.
Middle aortic syndrome: distal thoracic and abdominal coarctation, a disorder with multiple etiologies.
Coarctation of the abdominal aorta with renal arterial stenosis: surgical considerations.
The patient is a 22 year old male with coarctation of the aorta diagnosed since childhood.
A transthoracic echocardiogram was done which showed biatrial dilatation, right ventricular dilatation, slightly decreased left ventricular systolic function, severe aortic regurgitation, a possible bicuspid aortic valve with vegetation, an enlarged aortic root, severe tricuspid regurgitation with moderate to severe pulmonary hypertension, tricuspid valve vegetation, a possible non coronary sinus of Valsalva aneurysm with perforation to the right atrium and severe coarctation at the aortic isthmus with a maximum peak gradient of 77 mmHg (Figure 1).
Due to ductus constriction, Coarctation of the aorta imposes significant afterload on the left ventricle (LV), resulting into increased wall stress, increase left ventricular pressure and compensatory ventricular hypertrophy.