pulmonary atresia


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atresia

 [ah-tre´zhah]
congenital absence or closure of a normal body opening or tubular structure; see also obstruction. adj., adj atret´ic.
anal atresia (atresia a´ni) imperforate anus.
aortic atresia
1. congenital absence of the aortic orifice.
2. absence or closure of the aortic orifice, a rare congenital anomaly in which the left ventricle is hypoplastic, so that oxygenated blood passes from the left into the right atrium through a septal defect, and the mixed venous and arterial blood passes from the pulmonary artery to the aorta by way of a patent ductus arteriosus.
aural atresia absence of closure of the auditory canal.
biliary atresia congenital obliteration or hypoplasia of one or more components of the bile ducts, resulting in persistent jaundice and liver damage.
choanal atresia blockage of the posterior nares. When the blockage is bilateral in a newborn, it produces acute respiratory distress because neonates are nose-breathers. Diagnosis is confirmed if a catheter cannot be passed through the nares. Until surgery is done to relieve the obstruction, insertion of an airway may be necessary.
esophageal atresia congenital lack of continuity of the esophagus, commonly accompanied by tracheoesophageal fistula, and characterized by accumulations of mucus in the nasopharynx, gagging, vomiting when fed, cyanosis, and dyspnea. Treatment should begin with suction of the upper esophageal pouch, followed by surgical repair by esophageal anastomosis and division of the fistula as soon as the infant's general condition permits.
follicular atresia (atresia folli´culi) the normal death of the ovarian follicle when unfertilized.
laryngeal atresia congenital lack of the normal opening into the larynx.
mitral atresia congenital obliteration of the mitral orifice; it is associated with hypoplastic left heart syndrome and transposition of great vessels.
prepyloric atresia congenital membranous obstruction of the gastric outlet, characterized by vomiting of gastric contents only. Called also pyloric atresia.
pulmonary atresia congenital severe narrowing or obstruction of the pulmonary orifice, with cardiomegaly, reduced pulmonary vascularity, and right ventricular atrophy. It is usually associated with tetralogy of fallot, transposition of great vessels, or other cardiovascular anomalies.
pyloric atresia prepyloric atresia.
tricuspid atresia absence of the tricuspid orifice, circulation being made possible by an atrial septal defect.
 Tricuspid atresia, here displaying a ventricular septal defect and normally related great arteries, the arrows showing the altered flow of blood through the heart. From Dorland's, 2000.
urethral atresia imperforation of the urethra.

pul·mo·nar·y a·tre·si·a

congenital absence of the pulmonary valve orifice.

pulmonary atresia

Etymology: L, pulmoneus, lungs; Gk, a + tresis, without perforation
a congenital heart defect of the right ventricular outflow tract. One form consists of an intact ventricular septum with an interatrial communication and a persistent patent ductus arteriosus. A more extreme form is the four-defect tetralogy of Fallot.

pulmonary atresia

Pediatric cardiology Stenosis or obstruction of the pulmonary heart valve, a congenital heart disease
References in periodicals archive ?
The pulmonary artery is absent in type IV (absence of the 6th aortic arches) and blood supply to the lungs is via the bronchial arteries and is now considered to be pulmonary atresia with a VSD [4, 23].
The current patient's cardiac malformation, pulmonary atresia, was palliated with a Waterston shunt (side-to-side anastomosis of the ascending aorta to the right pulmonary artery).
2 Deletion Syndrome is underrecognised in adult patients with tetralogy of Fallot and pulmonary atresia.
Velo-cardio-facial syndrome associated with ventricular septal defect, pulmonary atresia, and hypoplastic pulmonary arteries.
A significantly lower proportion of neonatal deaths with transposition of the great arteries as the underlying cause occurred in infants of black mothers (2%) compared with white mothers (6%), but a significantly higher proportion of neonatal deaths caused by pulmonary atresia occurred in infants of black mothers (3%) compared with white mothers (2%).
CryoPatch SG is indicated for the repair or reconstruction of the right ventricular outflow tract (RVOT), which is a surgery commonly performed in children with congenital heart defects, such as Tetralogy of Fallot, Truncus Arteriosus, and Pulmonary Atresia.
CryoPatch is indicated for the repair or reconstruction of the right ventricular outflow tract (RVOT), a surgery commonly performed in children with congenital heart defects, such as Tetralogy of Fallot, Truncus Arteriosus, and Pulmonary Atresia.
He has pulmonary atresia, a rare form of congenital heart disease, and two holes in the heart, and underwent his first major operation at the age of four.
The association of pulmonary atresia (PA) with anomalous origin of the left pulmonary artery and an absent right pulmonary artery is, however, a very rare occurrence.
Lily Cater has a rare heart defect - pulmonary atresia - which is a life-threatening condition linked to the under-development of the heart, which as a result has to work harder to pump blood around her body.
Andrew was born in Bridgend on December 31, 1963, but a serious heart condition - Complex Pulmonary Atresia - meant that he was blue at birth.

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