partial atrioventricular canal
Findings
No curated finding names partial atrioventricular canal yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Partial atrioventricular canal (PAVC) is a congenital heart malformation characterized by an atrial septal defect (ASD; ostium primum), clefts of mitral and occasionally tricuspid valves, two separate atrioventricular (AV) valve annuli and an intact ventricular septum. The typical symptoms of PAVC are impaired exercise capacity and exertional dyspnea.
Definition from the Mondo Disease Ontology (MONDO:0015275), read 2026-09-29. CC BY 4.0.
Features
25 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Partial atrioventricular canal defectHPOHP:0011577
- Obligate (100% of cases)
- Exercise-induced muscle fatigueHPOHP:0009020
- Frequent (30% to 79% of cases)
- Exertional dyspneaHPOHP:0002875
- Frequent (30% to 79% of cases)
- Heart murmurHPOHP:0030148
- Frequent (30% to 79% of cases)
- Mitral regurgitationHPOHP:0001653
- Frequent (30% to 79% of cases)
- PalpitationsHPOHP:0001962
- Frequent (30% to 79% of cases)
- Recurrent respiratory infectionsHPO
Show the remaining 13
- Atrial flutterHPOHP:0004749
- Occasional (5% to 29% of cases)
- Bacterial endocarditisHPOHP:0006689
- Occasional (5% to 29% of cases)
- Bicuspid aortic valveHPOHP:0001647
- Occasional (5% to 29% of cases)
- Coarctation of aortaHPOHP:0001680
- Occasional (5% to 29% of cases)
- Common atriumHPOHP:0011565
- Occasional (5% to 29% of cases)
- Coronary sinus enlargementHPOHP:0031298
- Occasional (5% to 29% of cases)
Where it sits
Other names
2 names
Resolves to: partial atrioventricular canal
- Also called
- partial atrioventricular canal defectPAVC