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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pul·mo·nar·y a·tre·si·a

congenital absence of the pulmonary valve orifice.
Farlex Partner Medical Dictionary © Farlex 2012

pulmonary atresia

Pediatric cardiology Stenosis or obstruction of the pulmonary heart valve, a congenital heart disease
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
###11###All patients had pulmonary atresia and 6 patients had undergone a Blalock-###Rastelli procedure and closure of
Definitive repair in patients with pulmonary atresia and intact ventricular septum.
The youngster was just hours old when doctors discovered she was suffering from pulmonary atresia, meaning parts of the heart do not develop properly, meaning it is unable to pump blood effectively.
Doctors discovered Jenson's heart problems during Angela's 20-weeks scan and diagnosed pulmonary atresia, where parts of the heart do not develop properly, leaving it unable to pump blood effectively.
But just after Angela's 20-weeks scan doctors also found Jenson was suffering from pulmonary atresia, a condition whereby parts of the heart do not develop properly, meaning it is unable to pump blood effectively.
These included Pulmonary atresia, uni-ventricular heart, L-TGA and RSOV, RVOTO, Ebstein anomaly, TGA and DORV.
Phoebe suffered from pulmonary atresia with vsd, a form of heart disease which meant she was born with a hole in her heart and her pulmonary valve wasn't formed properly.
Aimee was born with one chamber in her heart instead of four, pulmonary atresia which means her pulmonary valve did not form properly and the artery intended to carry blood to the lungs did not develop.
According to the British Heart Foundation, pulmonary atresia with intact ventricular septum is an abnormality of the heart that develops in the womb.
Type of congenital heart n (%) Tetralogy of Fallot 29 (11.3) Transposition of great arteries 4 (1.6) Ventricular septal defect 99 (38.5) Atrial septal defectCOA 33 (12.8) Coarctation of aorta 16 (6.2) Patent ductus arteriosus 31 (12.1) Atrioventricular septal defect 21 (8.2) Aortic prolapse 9 (3.5) Aortic stenosis 5 (1.9) Double outlet right ventricle 7 (2.7) Pulmonary atresia 13 (5.0) Others 104 (40.5) A patient may have more than one defect.
TOF may have associated cardiac defects in the form of pulmonary atresia, with absent pulmonary valve and with multiple aortopulmonary collateral (MAPCAs).
After a scan at Liverpool Women's Hospital, the unborn Oliver was diagnosed with pulmonary atresia, a kind of heart disease which affects the right-hand heart valve, double outlet right ventricle, which reduces the amount of oxygen being carried into the body by the blood, and a large VSD, which means Oliver had a hole in his heart.

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