Background: In this study, we analyzed epidemiologic characteristics and
morphologic differences between Asian and European population in patients
with abdominal aorta aneurysm (AAA). Method: We conducted concomitant study
in Japan and Europe , in 31 Asian patients (AP) with AAA and 130 control
subjects of the same population, and in 30 European patients with AAA and 126
control subjects (EP). We observed various demographic and anthropologic
parameters. Aortography was performed in all patients at the same type of
CT-scanners using the same examination protocol and postprocessing. For data
analysis, various statistical models were used. Results: There are
statistically significant differences in multiple epidemiologic and
morphologic findings in AAA patients, as well as in comparison with controls
in both groups. This is most distinct in terms of anthropologic
characteristics and number of risk-factors, and in terms of morphologic
findings, in the length of neck of the aneurysm, transverse diameter of
abdominal aorta (AA) and common iliac artery (c.i.a), and volumes of c.i.a.
We obtained paradoxical results considering diabetes mellitus, which
presented itself as a protective factor for AAA. Conclusion:
Demographic-epidemiologic analysis accompanied with morphologic measurements
using modern imaging modalities enables obtaining new information on
pathology of AAA in different races. There are differences in number of
risk-factors, and in terms of morphologic findings, in the length neck, angle
of the aneurysm, transverse diameters of abdominal aorta (AA) and in the
length of common iliac artery (c.i.a), and volume of c.i.a.
Coexistence of cystic medial necrosis and segmental arterial mediolysis in a patient with aneurysms of the abdominal aorta and the iliac artery