Abstract 19445: Gender-Related Differences in Long-Term Outcomes of Hospital Survivors With Acute Type B Aortic Dissection

Introduction: While previous research has demonstrated that men and women differ in presentation and management of Type B aortic dissection (TBAD) in the acute phase, there is little data evaluating whether these differences persist post-discharge. Methods: TBAD patients (N=2222) enrolled in The International Registry of Acute Aortic Dissection between January 1996 and February 2016 were stratified by male (N=1456, 65.5%) and female (N=766, 34.5%) gender. Of the patients that survived to discharge (N=2012 overall; 1318 (90.5%) men vs. 694 (90.6%) women, p=0.914), 724 men (54.9%) and 360 women (51.9%) had follow-up data available. Mean follow-up length was 2.8 years for men and 2.7 years for women (p=0.193). Results: At the time of acute dissection, women were older (66.0±15.2 vs. 62.0±13.8, p Conclusion: Men were more likely to have aortic growth and surgical or endovascular intervention at 5 years post-discharge, indicating that a gender-based approach to follow-up may be useful. Kaplan-Meier analysis of 5-year morality was similar between men and women.