Abstract
Introduction - Patients with Type B aortic dissection (TBD) in whom the proximal entry tear is located within 2 cm from the left subclavian (i.e. in Zone 3 for TEVAR) have been reported to have a worse prognosis suggesting the presence of an anatomic risk factor (1). We previously showed that in Type III arches, Zone 3 is associated with a consistent pattern of severe angulation and tortuosity (2), and higher pulsatile forces (3). Our aim was to investigate the prevalence of Type III arch configuration in TBD patients.
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