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Tricuspid atresia is (TA) a rare congenital heart malformation characterized by the congenital agenesis of tricuspid valve leading to severe hypoplasia of right ventricle (functionally univentricular). TA is associated with normally related or transposed great vessels (TGV), an obligatory interatrial connection that is crucial for survival (patent foramen ovale or atrial septal defect, osteum secondum type), ventricular septal defect (in 90% cases), pulmonary outflow obstruction - pulmonary atresia, stenosis or hypoplasia (usually in TA with normally related vessels but also in TGV), aortic coarctation and/or aortic arch interruption (usually in TA with TGV).
Biomarker and diagnostic research for tricuspid atresia has been reported in the published literature.
Estimated prevalence: 1-9 in 100,000 (Uncommon).
2 clinical trials registered, 2 recruiting. Interventions under study include drug therapy and medical devices. Pipeline includes 1 PHASE2. Research is primarily sponsored by academic and government institutions.
117 publications have been identified in PubMed for tricuspid atresia. Research spans Case Report / Case Series (39%), Epidemiology / Natural History (23%), and Review / Meta-Analysis (12%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 45 |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 4:18 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Disease patterns and progression | 26 | 23% |
Research summaries | 14 | 12% |
Clinical study results | 11 | 10% |
Testing and diagnosis research | 8 | 7% |
Laboratory research | 8 | 7% |
Other research | 2 | 2% |
New treatment approaches | 1 | 1% |
Coacci S (2026). [PMID: 41215553](https://pubmed.ncbi.nlm.nih.gov/41215553/). *Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society*. [Review / Meta-Analysis]
Grabinski Z (2026). [PMID: 41237673](https://pubmed.ncbi.nlm.nih.gov/41237673/). *The American journal of emergency medicine*. [Review / Meta-Analysis]
Massad F (2026). [PMID: 41288546](https://pubmed.ncbi.nlm.nih.gov/41288546/). *JACC. Case reports*. [Case Report / Case Series]
Chappell G (2026). [PMID: 40818789](https://pubmed.ncbi.nlm.nih.gov/40818789/). *The Journal of thoracic and cardiovascular surgery*. [Clinical Trial Publication]
Catalano MA (2026). [PMID: 41093007](https://pubmed.ncbi.nlm.nih.gov/41093007/). *The Journal of thoracic and cardiovascular surgery*. [Epidemiology / Natural History]
Rajiah PS (2026). [PMID: 41886301](https://pubmed.ncbi.nlm.nih.gov/41886301/). *Radiographics : a review publication of the Radiological Society of North America, Inc*. [Review / Meta-Analysis]
Padalino MA (2026). [PMID: 41127893](https://pubmed.ncbi.nlm.nih.gov/41127893/). *European heart journal*. [Epidemiology / Natural History]
Kleinsasser RR (2026). [PMID: 41572642](https://pubmed.ncbi.nlm.nih.gov/41572642/). *Cardiology in the young*. [Case Report / Case Series]
Șuteu CC (2026). [PMID: 41515665](https://pubmed.ncbi.nlm.nih.gov/41515665/). *Diagnostics (Basel, Switzerland)*. [Basic Science / Preclinical]
Cortez D (2026). [PMID: 41542781](https://pubmed.ncbi.nlm.nih.gov/41542781/). *J Cardiovasc Electrophysiol*. [Case Report / Case Series]