Background:Type A aortic intramural hematoma(IMH)is characterized by aortic lesions involving the ascending aorta and aortic arch,with no detectable intimal tear on imaging,no true or false lumen,and no direct communi...Background:Type A aortic intramural hematoma(IMH)is characterized by aortic lesions involving the ascending aorta and aortic arch,with no detectable intimal tear on imaging,no true or false lumen,and no direct communication between the hematoma and the vascular lumen.The typical pathological changes present as annular or crescent-shaped thickening of the ascending aortic wall.Due to the substantially higher risk associated with Type A IMH compared to Type B IMH,treatment approaches vary across countries and medical centers,with the primary treatment strategies being closely related to surgical interventions.Previous risk factors for Type A IMH mainly focused on aortic diameter and hematoma thickness;however,our research group is the first to consider hematoma volume as a risk factor.This article provides a comprehensive review of Type A IMH and an outlook on its risk factors.展开更多
基金supported by research grants from the Guangzhou Science and Technology Program key projects(No.202002020037)
文摘Background:Type A aortic intramural hematoma(IMH)is characterized by aortic lesions involving the ascending aorta and aortic arch,with no detectable intimal tear on imaging,no true or false lumen,and no direct communication between the hematoma and the vascular lumen.The typical pathological changes present as annular or crescent-shaped thickening of the ascending aortic wall.Due to the substantially higher risk associated with Type A IMH compared to Type B IMH,treatment approaches vary across countries and medical centers,with the primary treatment strategies being closely related to surgical interventions.Previous risk factors for Type A IMH mainly focused on aortic diameter and hematoma thickness;however,our research group is the first to consider hematoma volume as a risk factor.This article provides a comprehensive review of Type A IMH and an outlook on its risk factors.
