Objective To explore the correlation between gender and long-term prognosis of patients with type-B acute aortic dissection (AAD) after endovascular therapy (EVT). Methods From January to December 2012, all patients with type-B AAD undergoing EVT were enrolled by retrospective and observational study. They were divided into male and female groups. Kaplan-Meier analysis was used to analyze the correlation between gender and the cumulative survival rate. Results A total of 131 tyep-B AAD patients who had undergone EVT were selected, including 97 males (74.0%), and 34 females (26.0%). The medium follow-up duration was 2.1 years. Smoking history, cholesterol, white blood cell count, hemoglobin, creatinine and uric acid of the patients in males were higher than those in females (P<0.05); while the difference in other indexes were not significant (P>0.05). The inhospital mortality of male patients was 10 (10.3%), and was 3 (8.8%) in female patients; there was no significant difference between the two groups (P=0.803). Kaplan-Meier analysis showed that there was no significant difference in cumulative survival rate between the two groups (84.5% vs. 82.4%; Logrank test χ2=0.023, P=0.880). Conclusion No correlation between gender and long-term prognosis in patients with type-B AAD after EVT is found.
In recent years, the diagnosis and management technology of type B aortic dissection (TBAD) has developed rapidly worldwide along with evidence-based medicine practice and clinical research data. But the standard clinical criteria are still limited. Based on this, the Society of Thoracic Surgeons (STS) and the American Association for Thoracic Surgery (AATS) established an expert group dominated by aortic surgeons to collate and analyze the comprehensive literature data of acute and chronic, complicated and uncomplicated TBAD. And then, the group formulated and officially released the clinical practice guidelines for TBAD in 2022. In this paper, we interpreted and analyzed the main contents of the guideline in combination with domestic research, in order to provide reference and help for the clinical diagnosis and treatment of TBAD at the present stage in China.