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National trends in utilization, mortality, and survival after repair of type B aortic dissection in the Medicare population.

Abstract：

OBJECTIVE:The application of thoracic endovascular aortic repair (TEVAR) has changed treatment paradigms for thoracic aortic disease. We sought to better define specific treatment patterns and outcomes for type B aortic dissection treated with TEVAR or open surgical repair (OSR). METHODS:Medicare patients undergoing type B thoracic aortic dissection repair (2000-2010) were identified by use of a validated International Classification of Diseases, Ninth Revision diagnostic and procedural code-based algorithm. Trends in utilization were analyzed by procedure type (OSR vs TEVAR), and patterns in patient characteristics and outcomes were examined. RESULTS:Total thoracic aortic dissection repairs increased by 21% between 2000 and 2010 (2.5 to 3 per 100,000 Medicare patients; P = .001). A concomitant increase in TEVAR was seen during the same interval (0.03 to 0.8 per 100,000; P < .001). By 2010, TEVAR represented 27% of all repairs. TEVAR patients had higher rates of comorbid congestive heart failure (12% vs 9%; P < .001), chronic obstructive pulmonary disease (17% vs 10%; P < .001), diabetes (8% vs 5%; P < .001), and chronic renal failure (8% vs 3%; P < .001) compared with OSR patients. For all repairs, patient comorbidity burden increased over time (mean Charlson comorbidity score of 0.79 in 2000, 1.10 in 2010; P = .04). During this same interval, in-hospital mortality rates declined from 47% to 23% (P < .001), a trend seen in both TEVAR and OSR patients. Whereas in-hospital mortality rates and 3-year survival were similar between patients selected for TEVAR and OSR, there was a trend toward women having slightly lower 3-year survival after TEVAR (60% women vs 63% men; P = .07). CONCLUSIONS:Surgical treatment of type B aortic dissection has increased over time, reflecting an increase in the utilization of TEVAR. Overall, type B dissection repairs are currently performed at lower mortality risk in patients with more comorbidities.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Jones DW,Goodney PP,Nolan BW,Brooke BS,Fillinger MF,Powell RJ,Stone DH

doi

10.1016/j.jvs.2013.12.047

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

11-9, 19.e1

issue

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(14)00098-6

journal_volume

pub_type

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National trends in utilization, mortality, and survival after repair of type B aortic dissection in the Medicare population.