Thoracic aortopathy with aneurysm can be associated with a number of genetic disorders, which often affect other organs as well.
Syndrome |
Gene |
Name |
Marfan Syndrome (MFS) |
FBN-1 |
fibrillin |
Loeys-Dietz syndrome (LDS) |
5 (see below) |
see below |
vascular Ehlers-Danlos syndrome (vEDS) |
COL3A1 |
type III procollagen |
familial thoracic aortic aneurysm and dissection (FTAAD) |
5 (see below) |
see below |
LDS Gene |
Name |
TGFBR1 |
TGF-beta receptor 1 |
TGFBR2 |
TGF-beta receptor 2 |
SMAD3 |
SMAD family member 3 |
TGFB2 |
TGF-beta 2 ligand |
TGFB3 |
TGF-beta 3 ligand |
FTAAD Gene |
Name |
ACRA1 |
smooth muscle alpha-2-actin |
MYH11 |
smooth muscle myosin heavy chain |
TGFBR2 |
TGF-beta receptor 2 |
MYLK |
myosin light chain kinase |
PRKG1 |
type I cGMP-dependent protein kinase regulating smooth muscle cell relaxation |
Syndrome |
Clinical Findings |
MFS |
aortic dilation at sinuses of Valsalva; skeletal, ocular, and cardiovascular defects |
LDS |
fast-growing thoracic aortic aneurysm with death in early adulthood |
vEDS |
spontaneous intestinal, arterial or uterine rupture; joint and cutaneous manifestation; high surgical mortality |
FTAAD ACTA2 |
livedo reticularis; iris floculi; patent ductus arteriosus; nonthoracic aneurysm; premature coronary artery disease; ischemic stroke; moyamoya |
FTAAD MYH11 |
patent ductus arteriosus |
FTAAD TGFBR2 |
abdominal, cerebral and coronary aneurysms |
FTAAD MYLK |
aortic dissection with or without preceding aneurysm |
FTAAD PRKG1 |
aortic dissection at young age; coronary artery aneurysm with dissection |
Specialty: Cardiology