Takayasu arteritis can be classified based on the distribution of disease seen on angiography. The authors are from Tokyo Medical and Dental University.
Patient selection: Takayasu arteritis
Type
Involvement
I
branches of the aortic arch
IIa
Type I plus ascending aorta
IIb
Type IIa plus descending aorta
III
Type IV plus descending aorta
IV
abdominal aorta and/or renal arteries
V
both IIb and IV (diffuse)
Additional codes:
C(+) indicates coronary artery involvement
P(+) indicates pulmonary artery involvement
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