Study design
We retrospectively reviewed medical records from five pregnant women with complicated TBAD admitted to Zhongnan Hospital of Wuhan University from Jan 2022 to Jun 2023. Stanford classification was adopted in the study, and TBAD refers to the absence of involvement of the ascending aorta. Complicated TBAD is defined as the presence of malperfusion syndrome or rupture. Diagnosis of complicated TBAD was based on clinical features and CT angiography (CTA) according to the Society of Thoracic Surgeons/American Association for thoracic surgery clinical practice guidelines on the management of TBAD6. This study was reviewed and approved by the Medical Ethical Committee of Zhongnan Hospital of Wuhan University (approval number 2023216K). Obtaining patient consent was not required according to the committee’s procedures.