{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T14:01:56Z","timestamp":1788184916657,"version":"build-2803163510"},"reference-count":39,"publisher":"American Medical Association (AMA)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Cardiol"],"published-print":{"date-parts":[[2023,1,1]]},"abstract":"Importance<\/jats:title>Thoracic endovascular aortic repair (TEVAR) has increasingly been used for uncomplicated type B aortic dissection (uTBAD) despite limited supporting data.<\/jats:p><\/jats:sec>Objective<\/jats:title>To assess whether initial TEVAR following uTBAD is associated with reduced mortality or morbidity compared with medical therapy alone.<\/jats:p><\/jats:sec>Design, Setting, and Participants<\/jats:title>This cohort study included Centers for Medicare &amp;amp; Medicaid Services inpatient claims data for adults aged 65 years or older with index admissions for acute uTBAD from January 1, 2011, to December 31, 2018, with follow-up available through December 31, 2019.<\/jats:p><\/jats:sec>Exposures<\/jats:title>Initial TEVAR was defined as TEVAR within 30 days of admission for acute uTBAD.<\/jats:p><\/jats:sec>Main Outcomes and Measures<\/jats:title>Outcomes included all-cause mortality, cardiovascular hospitalizations, aorta-related and repeated aorta-related hospitalizations, and aortic interventions associated with initial TEVAR vs medical therapy. Propensity score inverse probability weighting was used.<\/jats:p><\/jats:sec>Results<\/jats:title>Of 7105 patients with eligible index admissions for acute uTBAD, 1140 (16.0%) underwent initial TEVAR (623 [54.6%] female; median age, 74 years [IQR, 68-80 years]) and 5965 (84.0%) did not undergo TEVAR (3344 [56.1%] female; median age, 76 years [IQR, 69-83 years]). Receipt of TEVAR was associated with region (vs South; Midwest: adjusted odds ratio [aOR], 0.66 [95% CI, 0.53-0.81]; P<\/jats:italic>\u2009&amp;lt;\u2009.001; Northeast: aOR, 0.63 [95% CI, 0.50-0.79]; P<\/jats:italic>\u2009&amp;lt;\u2009.001), Medicaid dual eligibility (aOR, 0.76; 95% CI, 0.63-0.91; P<\/jats:italic>\u2009=\u2009.003), hypertension (aOR, 1.26; 95% CI, 1.03-1.54; P<\/jats:italic>\u2009=\u2009.03), peripheral vascular disease (aOR, 1.24; 95% CI, 1.02-1.49; P<\/jats:italic>\u2009=\u2009.03), and year of admission (2012, 2013, 2014, and 2015 were associated with greater odds of TEVAR compared with 2011). After inverse probability weighting, mortality was similar for the 2 strategies up to 5 years (hazard ratio [HR], 0.95; 95% CI, 0.85-1.06), as were aorta-related hospitalizations (HR, 1.12; 95% CI, 0.99-1.27), aortic interventions (HR, 1.01; 95% CI, 0.84-1.20), and cardiovascular hospitalizations (HR, 1.05; 95% CI, 0.93-1.20). In a sensitivity analysis that included deaths within the first 30 days, initial TEVAR was associated with lower mortality over a period of 1 year (adjusted HR [aHR], 0.86; 95% CI, 0.75-0.99; P<\/jats:italic>\u2009=\u2009.03), 2 years (aHR, 0.85; 95% CI, 0.75-0.96; P<\/jats:italic>\u2009=\u2009.008), and 5 years (aHR, 0.87; 95% CI, 0.80-0.96; P<\/jats:italic>\u2009=\u2009.004).<\/jats:p><\/jats:sec>Conclusions and Relevance<\/jats:title>In this study, 16.0% of patients underwent initial TEVAR within 30 days of uTBAD, and receipt of initial TEVAR was associated with hypertension, peripheral vascular disease, region, Medicaid dual eligibility, and year of admission. Initial TEVAR was not associated with improved mortality or reduced hospitalizations or aortic interventions over a period of 5 years, but in a sensitivity analysis that included deaths within the first 30 days, initial TEVAR was associated with lower mortality. These findings, along with cost-effectiveness and quality of life, should be assessed in a prospective trial in the US population.<\/jats:p><\/jats:sec>","DOI":"10.1001\/jamacardio.2022.4187","type":"journal-article","created":{"date-parts":[[2022,11,5]],"date-time":"2022-11-05T16:30:43Z","timestamp":1667665843000},"page":"44","source":"Crossref","is-referenced-by-count":38,"title":["Initial Thoracic Endovascular Aortic Repair vs Medical Therapy for Acute Uncomplicated Type B Aortic Dissection"],"prefix":"10.1001","volume":"8","author":[{"given":"E. 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