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Fallot complex - intellectual deficit - growth delay is a rare disorder characterized by tetralogy of Fallot, minor facial anomalies, and severe intellectual deficiency and growth delay.
Features include very common findings: Protruding ear, Severe failure to thrive, and Profound intellectual disability; and common findings: Double outlet right ventricle, Tetralogy of Fallot, Pulmonic stenosis, and Cryptorchidism and others. 37 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Head and neck | 4 | Abnormality of the face, High palate, Microcephaly |
Biomarker and diagnostic research for fallot complex-intellectual disability-growth delay syndrome has been reported in the published literature.
Phenotype severity distribution: 3 very common features, 14 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for fallot complex-intellectual disability-growth delay syndrome.
163 publications have been identified in PubMed for fallot complex-intellectual disability-growth delay syndrome. Research spans Review / Meta-Analysis (61%), Basic Science / Preclinical (14%), and Epidemiology / Natural History (10%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 100 | 61% |
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 1:13 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Brain and nerves |
3 |
Intellectual disability, Profound intellectual disability, Severe global developmental delay |
Arms and legs | 3 | 2-3 toe syndactyly, Clubbing of fingers, Clubbing of toes |
Growth and development | 2 | Failure to thrive, Severe failure to thrive |
Heart and blood vessels | 2 | Ventricular septal defect, Atrial septal defect |
Eyes | 2 | Strabismus, Unilateral ptosis |
Ears | 1 | Recurrent otitis media |
Bones and joints | 1 | Severe backward arching of the body (opisthotonus) |
Laboratory research |
23 |
14% |
Disease patterns and progression | 17 | 10% |
Testing and diagnosis research | 9 | 6% |
Patient case studies | 9 | 6% |
Other research | 4 | 2% |
Clinical study results | 1 | 1% |
Amado C (2026). [PMID: 40975490](https://pubmed.ncbi.nlm.nih.gov/40975490/). *Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology*. [Review / Meta-Analysis]
Papazachariou A (2026). [PMID: 41128447](https://pubmed.ncbi.nlm.nih.gov/41128447/). *Curr Opin Clin Nutr Metab Care*. [Review / Meta-Analysis]
Buel KL (2026). [PMID: 41569909](https://pubmed.ncbi.nlm.nih.gov/41569909/). *FP Essent*. [Review / Meta-Analysis]
Manto M (2026). [PMID: 41663552](https://pubmed.ncbi.nlm.nih.gov/41663552/). *J Neurol*. [Other]
Ferri C (2026). [PMID: 41798958](https://pubmed.ncbi.nlm.nih.gov/41798958/). *Front Immunol*. [Review / Meta-Analysis]
Anderson EN (2026). [PMID: 41468891](https://pubmed.ncbi.nlm.nih.gov/41468891/). *American journal of human genetics*. [Basic Science / Preclinical]
Sebode M (2026). [PMID: 41432137](https://pubmed.ncbi.nlm.nih.gov/41432137/). *Current opinion in gastroenterology*. [Review / Meta-Analysis]
Lee S (2026). [PMID: 41206258](https://pubmed.ncbi.nlm.nih.gov/41206258/). *Am J Geriatr Psychiatry*. [Review / Meta-Analysis]
Paller AS (2025). [PMID: 40184496](https://pubmed.ncbi.nlm.nih.gov/40184496/). *The British journal of dermatology*. [Review / Meta-Analysis]
Li C (2025). [PMID: 40736845](https://pubmed.ncbi.nlm.nih.gov/40736845/). *Advances in experimental medicine and biology*. [Review / Meta-Analysis]