SNOMED CT

Last uploaded: January 16, 2025
Id http://purl.bioontology.org/ontology/SNOMEDCT/718216009
http://purl.bioontology.org/ontology/SNOMEDCT/718216009
Preferred Name

Partial defect of atrioventricular canal

Definitions
A congenital heart malformation characterized by an atrial septal defect, clefts of mitral and occasionally tricuspid valves, two separate atrioventricular valve annuli and an intact ventricular septum. The typical symptoms are impaired exercise capacity and exertional dyspnea. The age of onset is variable, but clinical features may not appear until later in life. In contrast to the complete form, patients with partial atrioventricular canal have two separate AV valves, (resulting from fusion of the superior and inferior bridging leaflets), and no large intraventricular communication. A congenital heart malformation characterised by an atrial septal defect, clefts of mitral and occasionally tricuspid valves, two separate atrioventricular valve annuli and an intact ventricular septum. The typical symptoms are impaired exercise capacity and exertional dyspnoea. The age of onset is variable, but clinical features may not appear until later in life. In contrast to the complete form, patients with partial atrioventricular canal have two separate AV valves, (resulting from fusion of the superior and inferior bridging leaflets), and no large intraventricular communication.
Synonyms
Partial defect of atrioventricular canal (disorder)
Partial atrioventricular canal
Type http://www.w3.org/2002/07/owl#Class
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