TY - JOUR
T1 - Health care costs of endovascular compared with open thoracoabdominal aortic aneurysm repair
AU - Rocha, Rodolfo V.
AU - De Mestral, Charles
AU - Tam, Derrick Y.
AU - Lee, Douglas S.
AU - Al-Omran, Mohammed
AU - Austin, Peter C.
AU - Forbes, Thomas L.
AU - Ouzounian, Maral
AU - Lindsay, Thomas F.
N1 - Funding Information:
This study was supported by ICES, which is funded by an annual grant from the Ontario Ministry of Health and Long-Term Care. The opinions, results and conclusions reported in this paper are those of the authors and are independent from the funding sources. No endorsement by ICES or the Ontario Ministry of Health and Long-Term Care is intended or should be inferred. Parts of this material are based on data and information compiled and provided by CIHI. The analyses, conclusions, opinions and statements expressed herein are those of the author, and not necessarily those of CIHI.
Funding Information:
R.V.R. is supported by the Black Family Foundation Fellowship Award. This study was supported by the Divisions of Cardiovascular and Vascular Surgery, Peter Munk Cardiac Centre, University Health Network , Toronto, Ontario, Canada. P.C.A. is supported by a Mid-Career Investigator Award from the Heart and Stroke Foundation. D.S.L. is supported by a Mid-Career Investigator Award from the Heart and Stroke Foundation and is the Ted Rogers Chair in Heart Function Outcomes.
Publisher Copyright:
© 2020 Society for Vascular Surgery
PY - 2021/6
Y1 - 2021/6
N2 - Objective: To compare 1-year health care costs between endovascular and open thoracoabdominal aortic aneurysm (TAAA). Methods: Population-based administrative health databases were used to capture TAAA repairs performed in Ontario, Canada, between January 2006 and February 2017. All health care costs incurred by the Ministry of Health from a single-payer universal health care system were included. Costs of the aortic endografts and ancillary devices for the index procedure were estimated as C$44,000 per endovascular case vs C$1000 for open cases, based on previous reports. Costs (2017 Canadian dollars) were calculated in phases (1, 1-3, 3-6, and 6-12 months from surgery) with censoring for death. For each phase, propensity score matching of endovascular and open cases based on preoperative patient and hospital characteristics was used. The association between preoperative characteristics (including repair approach) and the first month postprocedure cost was characterized through multivariable analysis. Results: Overall 664 TAAA repairs were identified (open, n = 361 [54.5%] and endovascular, n = 303 [45.6%]). At 1 month, the median cost was higher for endovascular TAAA repair in the prematching cohort (C$64,892 vs C$36,647; P <.01). Similarly, in 241 well-balanced endovascular/open patient pairs after propensity score matching, the median health care costs were higher in endovascular TAAA cases during the first month (C$62,802 vs C$33,605; P <.01). The 1- to 3-month median cost was not statistically different between endovascular and open TAAA cases either before matching (C$2781 vs C$2618; P =.71) or after matching (C$2762 vs C$2092; P =.58). Likewise, in the 3- to 6-month and 6- to 12-month postprocedure intervals, there were no significant differences in the median health care costs between groups. On multivariable analysis, older age (5-year increments) (relative change [RC] in mean cost, 1.05; 95% confidence interval [CI], 1.04-1.06; P =.01), urgent procedures (RC, 1.29; 95% CI, 1.10-1.52; P <.01), and history of stroke (RC, 1.34; 95% CI, 1.00-1.78; P =.05) were associated with higher costs in the first postoperative month, whereas open relative to endovascular TAAA repair was associated with a decreased 1-month cost (RC, 0.65; 95% CI, 0.56-0.74; P <.01). Conclusions: TAAA repair is expensive regardless of technique. Compared with open TAAA repair, endovascular repair was associated with a higher early cost, owing to the upfront cost of the endograft and aortic ancillary devices. There was no difference in cost from 1 to 12 months after repair. A decrease in the cost of endovascular devices might allow equivalent costs between endovascular and open TAAA repair.
AB - Objective: To compare 1-year health care costs between endovascular and open thoracoabdominal aortic aneurysm (TAAA). Methods: Population-based administrative health databases were used to capture TAAA repairs performed in Ontario, Canada, between January 2006 and February 2017. All health care costs incurred by the Ministry of Health from a single-payer universal health care system were included. Costs of the aortic endografts and ancillary devices for the index procedure were estimated as C$44,000 per endovascular case vs C$1000 for open cases, based on previous reports. Costs (2017 Canadian dollars) were calculated in phases (1, 1-3, 3-6, and 6-12 months from surgery) with censoring for death. For each phase, propensity score matching of endovascular and open cases based on preoperative patient and hospital characteristics was used. The association between preoperative characteristics (including repair approach) and the first month postprocedure cost was characterized through multivariable analysis. Results: Overall 664 TAAA repairs were identified (open, n = 361 [54.5%] and endovascular, n = 303 [45.6%]). At 1 month, the median cost was higher for endovascular TAAA repair in the prematching cohort (C$64,892 vs C$36,647; P <.01). Similarly, in 241 well-balanced endovascular/open patient pairs after propensity score matching, the median health care costs were higher in endovascular TAAA cases during the first month (C$62,802 vs C$33,605; P <.01). The 1- to 3-month median cost was not statistically different between endovascular and open TAAA cases either before matching (C$2781 vs C$2618; P =.71) or after matching (C$2762 vs C$2092; P =.58). Likewise, in the 3- to 6-month and 6- to 12-month postprocedure intervals, there were no significant differences in the median health care costs between groups. On multivariable analysis, older age (5-year increments) (relative change [RC] in mean cost, 1.05; 95% confidence interval [CI], 1.04-1.06; P =.01), urgent procedures (RC, 1.29; 95% CI, 1.10-1.52; P <.01), and history of stroke (RC, 1.34; 95% CI, 1.00-1.78; P =.05) were associated with higher costs in the first postoperative month, whereas open relative to endovascular TAAA repair was associated with a decreased 1-month cost (RC, 0.65; 95% CI, 0.56-0.74; P <.01). Conclusions: TAAA repair is expensive regardless of technique. Compared with open TAAA repair, endovascular repair was associated with a higher early cost, owing to the upfront cost of the endograft and aortic ancillary devices. There was no difference in cost from 1 to 12 months after repair. A decrease in the cost of endovascular devices might allow equivalent costs between endovascular and open TAAA repair.
KW - Branched and fenestrated EVAR
KW - Cost
KW - Thoracoabdominal aortic aneurysm
UR - http://www.scopus.com/inward/record.url?scp=85100437931&partnerID=8YFLogxK
U2 - 10.1016/j.jvs.2020.09.034
DO - 10.1016/j.jvs.2020.09.034
M3 - Article
C2 - 33098943
AN - SCOPUS:85100437931
VL - 73
SP - 1934-1941.e1
JO - Journal of Vascular Surgery
JF - Journal of Vascular Surgery
SN - 0741-5214
IS - 6
ER -