ostium secundum


Also found in: Dictionary, Legal, Encyclopedia, Wikipedia.
Related to ostium secundum: Ostium primum, sinus venosus, Septum secundum

ostium

 [os´te-um] (L.)
an opening or orifice. adj., adj os´tial.
ostium abdomina´le the fimbriated end of the fallopian tube.
ostium cardi´acum the orifice between the esophagus and the stomach.
coronary ostium either of the two openings in the aortic sinuses that mark the origins of the left and right coronary arteries.
ostium inter´num ostium uterinum tubae.
ostium pharyn´geum the nasopharyngeal end of the eustachian tube.
ostium pri´mum an opening in the lower portion of the membrane dividing the embryonic heart into right and left sides. See also atrial septal defect and congenital heart defect.
ostium secun´dum an opening in the upper portion of the membrane dividing the embryonic heart into right and left sides, appearing later than the ostium primum. See also atrial septal defect and congenital heart defect.)
tympanic ostium (ostium tympa´nicum) the opening of the eustachian tube on the carotid wall of the tympanic cavity.
ostium u´teri the external opening of the cervix of the uterus into the vagina.
ostium uteri´num tu´bae the uterine end of the fallopian tube; the point where the cavity of the tube becomes continuous with that of the uterus.
ostium vagi´nae the external orifice of the vagina.

in·ter·a·tri·al fo·ra·men se·cun·'dum

a secondary opening appearing in the upper part of the septum primum in the sixth week of embryonic life, just before the closure of the interatrial foramen primum.

ostium secundum

An opening in the higher part of the septum of the atria of the embryonic heart. This becomes the foramen ovale and closes shortly after birth.
See also: ostium

ostium

pl. ostia [L.] a mouth or orifice; a general term to designate an opening into a tubular organ, or between two distinct body cavities. The names of most ostia are self-defining.

ostium abdominale
the fimbriated end of the uterine tube.
ostium cardiacum
the opening of the esophagus into the stomach.
coronary ostium
either of the two openings in the aortic sinuses which mark the origin of the (left and right) coronary arteries.
ostium ejaculatorium
the common orifice of the ductus deferens and the excretory duct of the seminal vesicle into the urethra.
ostium internum
ostium uterinum tubae.
ostium pharyngeum
the nasopharyngeal end of the auditory tube.
ostium primum
an opening in the lower portion of the membrane dividing the embryonic atria into right and left sides. Called also foramen primum. See also atrial septal defect.
ostium pulmonary vein
the opening of the pulmonary vein into the left atrium.
ostium ruminoreticulare
the opening between the rumen and the reticulum.
ostium secundum
an opening in the upper portion of the membrane dividing the embryonic atria into right and left sides, appearing later than the ostium primum. Called also foramen secundum. See also atrial septal defect.
tympanic ostium, ostium tympanicum
the opening of the auditory tube on the carotid wall of the tympanic cavity.
ostium uteri
the external opening of the cervix of the uterus into the vagina.
ostium uterinum tubae
the point where the cavity of the uterine tube becomes continuous with that of the uterus.
ostium vaginae
the external orifice of the vagina.
References in periodicals archive ?
In conclusion, the percutaneous transcatheter closure of ASD and PFO was shown in this study to be an effective and safe therapeutic intervention for patients with ostium secundum ASD or PFO and recurrent embolic events (with appropriate indications and favorable anatomic characteristics).
El corazon peso 35 g, el epicardio era normal y las cuatro cavidades tenian conformacion y morfologia adecuadas, aunque con comunicacion interauricular de tipo ostium secundum de 0,6 cm (figura 2); los sistemas valvulares eran normales: valvula tricuspide de 3 cm, pulmonar de 2 cm, mitral de 3,5 cm y aortica de 1,8 cm.
This report describes a patient with coarctation of the aorta associated with a bicuspid aortic valve, aortic root dilatation, non coronary sinus of Valsalva aneurysm and a ostium secundum atrial septal defect who suffered a bacterial endocarditis.
Among the common congenital acynotic heart diseases, ASDs are anatomically classified into four types: 1) Ostium secundum (85%), 2) Ostium primum (10%), 3) Sinus venosus (5%), and 4) Coronary sinus defects (rare).
She was investigated and her 2D Echo revealed E/o 24mm ostium secundum atrial septal defect with left to right shunt and grade I tricuspid regurgitation.
The current study reviewed data of 84 patients who had undergone surgical repair of ASD, including the three major forms: ostium primum, ostium secundum and sinus venosus (with or without partial anomalous pulmonary venous connection or PAPVD).
Of these, ostium secundum defects, located in the region of fossa ovalis, are the most commonly diagnosed, noted in as many as 75% of patients.
Indications for Use in the US: The GORE HELEX Septal Occluder is a permanently implanted prosthesis indicated for the percutaneous, transcatheter closure of ostium secundum Atrial Septal Defect (ASD).
Most common form of ASDs is ostium secundum type of PFO, occurs more frequently in females than in males and progressively declines with increasing age.
1] There is an association between MVP and other congenital heart diseases such as ostium secundum atrial septal defect, hypertrophic cardiomyopathy, Marfan's syndrome, Ebstein's anomaly and Wolf Parkinson White (WPW) syndrome, although these are rare occurrences.