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Ontology Browser
Term:
Parent Terms Term With Siblings Child Terms
Complete atrioventricular canal defect  
Intermediate atrioventricular canal defect 
Partial atrioventricular canal defect  
Patent foramen ovale  
Primum atrial septal defect  
An ostium primum atrial septal defect is located in the most anterior and inferior aspect of the atrial septum. The ostium primum refers to an anterior and inferior opening (ostium) within the septum primum, which divides the rudimentary atrium during fetal development. The ostium primum is normally sealed by fusion of the superior and inferior endocardial cushions around 5 weeks' gestation. Ostium primum defects result from a failure of the fusion of the embryologic endocardial cushion and septum primum.
Secundum atrial septal defect  
Sinus venosus atrial septal defect  
Swiss cheese atrial septal defect 
Transitional atrioventricular canal defect 
Unbalanced atrioventricular canal defect  
Unroofed coronary sinus  

Synonyms
Exact Synonyms: ATRIAL SEPTAL DEFECT, PRIMUM TYPE ;   Ostium primum atrial septal defect ;   Primum atrioventricular canal defect ;   Septum primum defect ;   ostium primum ASD
Xrefs: Fyler:1110 ;   SNOMEDCT_US:253373002 ;   UMLS:C0344735 ;   UMLS:C0741296
Definition Sources: HPO_CONTRIBUTOR:DDD_dbrown, https://orcid.org/0000-0002-0736-9199

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