Connective Tissue
for hereditary aortopathies and heritable connective tissue disorders with gene panels and exome sequencing
System Profile
Yield Comparison
Clinical Dimensions
- Aortic dilation or aneurysm at young age
- Joint hypermobility
- Recurrent dislocations
- Aortic dissection family history
- Skin fragility or hyperextensibility
- Marfan syndrome
- Loeys-Dietz syndrome
- Vascular Ehlers-Danlos syndrome
- Familial thoracic aortic aneurysm and dissection (FTAAD)
- Hypermobile Ehlers-Danlos syndrome
- Classical Ehlers-Danlos syndrome
- Osteogenesis imperfecta (overlap)
- Stickler syndrome
- Tall stature with marfanoid habitus
- Pectus excavatum or carinatum
- Arachnodactyly
- Scoliosis
- Joint hypermobility (Beighton score)
- Skin hyperextensibility
- Atrophic scarring
- Blue sclerae
- Lens subluxation
- Chronic joint pain and instability
- Easy bruising
- Poor wound healing
- Chronic fatigue
- GI dysfunction (vascular EDS)
- Chest pain (aortic involvement)
- Genetic panel for aortopathies (FBN1, TGFBR1/2, SMAD3, COL3A1, etc.)
- Collagen studies (skin biopsy)
- Echocardiographic aortic root measurements
- Echocardiogram showing aortic root dilation
- CT/MR angiography for arterial tortuosity or aneurysms
- Skeletal imaging for vertebral anomalies
- DEXA scan for low bone density
- Ophthalmologic exam for lens subluxation
- Cardiac evaluation with serial echo
- Beta-blockers or ARBs for aortic dilation management
- Pain management for EDS
- Aortic root replacement
- Valve-sparing aortic surgery
- Joint stabilization procedures
- Scoliosis correction
- Physical therapy for joint stabilization
- Occupational therapy for hypermobility management
- Joint braces and splints
- Compression garments
- Genetics for connective tissue evaluation
- Cardiology for aortic surveillance
- Rheumatology
- Ophthalmology
- Aortic dissection or aneurysm
- Sudden death (vascular complications)
- Marfan syndrome
- Joint hypermobility or dislocations
- Tall stature with connective tissue features
- Tall for gestational age
- Joint laxity noted in infancy
- Hip dysplasia
Red Flag Combinations
Clinical patterns that should prompt consideration of genetic testing
Aortic dilation + lens subluxation + marfanoid habitus
Arterial tortuosity + bifid uvula + hypertelorism
Joint hypermobility + skin fragility + vascular events
Aortic dissection + family history of sudden death
Tall stature + scoliosis + aortic root dilation
Screening Decision Pathway
When to consider genetic testing for connective tissue presentations
graph TD
START["Patient Presents with\nConnective Tissue Concerns"] --> SCREEN{"Screen for\nRed Flags"}
SCREEN --> RF1["Aortic root dilation in young adult or child"]
SCREEN --> RF2["Family history of aortic dissection under 50"]
SCREEN --> RF3["Marfanoid habitus with cardiac findings"]
RF1 --> EVAL{"Multiple\nFlags Present?"}
RF2 --> EVAL{"Multiple\nFlags Present?"}
RF3 --> EVAL{"Multiple\nFlags Present?"}
EVAL -->|Yes| TEST["Order Genetic Testing\n(ES/GS)"]
EVAL -->|No| MONITOR["Continue Monitoring\nRe-evaluate if New Findings"]
TEST --> DX["Molecular Diagnosis\n17-18% yield"]
style TEST fill:#dcfce7,stroke:#16a34a,color:#14532d
style DX fill:#bbf7d0,stroke:#16a34a,color:#14532d
style MONITOR fill:#fef3c7,stroke:#d97706,color:#92400e
Screening Red Flags
Findings on routine screening that may indicate genetic etiology
- Aortic root dilation in young adult or child
- Family history of aortic dissection under 50
- Marfanoid habitus with cardiac findings
Exome / Genome Sequencing Indications
Clinical scenarios supporting ES/GS as a diagnostic approach
- Hereditary thoracic aortic aneurysm/dissection with negative targeted testing
- Clinical suspicion of Marfan with inconclusive FBN1 testing
- Suspected vascular EDS without confirmed COL3A1 variant
- Connective tissue phenotype with multi-system involvement
- Familial aortopathy with unknown genetic basis
Key Evidence
Published studies supporting genetic testing for connective tissue conditions
| Study | Year | Type | Sample | Yield | Key Finding |
|---|---|---|---|---|---|
| Next-Generation Sequencing of 32 Genes Associated with Hered... | 2019 | Cohort | None | 17.1% | 17.1% diagnostic yield with 32-gene panel in 199 hereditary aortopathy patients ... |
| Genetic Diversity and Pathogenic Variants as Possible Predic... | 2019 | Cohort | None | 18% | 18% pathogenic variants in 226 nonsyndromic HTAAD probands; genetic findings pre... |
| Diversity in Heritable Disorders of Connective Tissue at a S... | 2021 | Cohort | None | None | Mutations in 16 genes spanning Marfan, EDS subtypes, OI in 34 patients with heri... |
Updated: 2026-02-25
Curated by: human
Status: human reviewed