AUTHOR=Zhao Kaiwen , Zhu Hongqiao , He Xiaomin , Liang Taiping , Sun Yudong , Zhou Jian , Jing Zaiping 

TITLE=The intervention seasons of thoracic endovascular aortic repair impacted the outcomes for patients with type B aortic dissection

JOURNAL=Frontiers in Cardiovascular Medicine

VOLUME=10

YEAR=2023

URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2023.1100075

DOI=10.3389/fcvm.2023.1100075

ISSN=2297-055X

ABSTRACT=<sec><title>Purpose</title><p>The objective of this research was to investigate whether seasonal variations influence the outcomes of type B aortic dissection (TBAD) patients with thoracic endovascular aortic repair (TEVAR).</p></sec><sec><title>Patients and methods</title><p>From 2003 to 2020, a retrospective cohort study was performed, which included 1,123 TBAD patients who received TEVAR. Medical records were used to gather data on baseline characteristics. Outcomes including all-cause mortality and aortic-related adverse events (ARAEs) were tracked and analyzed.</p></sec><sec><title>Results</title><p>Of the 1,123 TBAD patients in this study, 308 received TEVAR in spring (27.4%), 240 cases in summer (21.4%), 260 cases in autumn (23.2%), and 315 cases in winter (28.0%). Patients in the autumn group had a significantly lower risk of 1-year mortality than those in the spring group (hazard ratio: 2.66, 95% confidence interval: 1.06–6.67, <italic>p</italic> = 0.037). Kaplan–Meier curves revealed that patients who underwent TEVAR in autumn had a lower risk of 30-day ARAEs (<italic>p</italic> = 0.049) and 1-year mortality (<italic>p</italic> = 0.03) than those in spring.</p></sec><sec><title>Conclusion</title><p>This study confirmed that TEVAR operated in autumn for TBAD was associated with a lower risk of 30-day ARAEs and 1-year mortality than in spring.</p></sec>