Why the study?
Does transcatheter aortic valve replacement affect hospital marginal profits compared to surgical aortic valve replacement in patients with severe aortic stenosis?
Does transcatheter aortic valve replacement affect hospital marginal profits compared to surgical aortic valve replacement in patients with severe aortic stenosis?
This editorial highlights that without cost transparency, the true financial impact of adopting new technologies like TAVR remains obscured, with current reimbursement models inadvertently penalizing treatments that shorten hospital lengths of stay.
Central MessageTrue health care costs are largely obscured from public view. Without cost transparency, the changes necessary to influence practice, improve quality, and constrain future expenditures remain elusive.See Article page 1872. True health care costs are largely obscured from public view. Without cost transparency, the changes necessary to influence practice, improve quality, and constrain future expenditures remain elusive. See Article page 1872. As the United States strives to improve health care quality and curtail costs, one thing is clear: transparent cost data are needed. As novel technologies emerge on the market, it is now standard to evaluate their incremental cost-effectiveness ratio—the additional cost of providing a new service divided by the change in the number of life-years (or quality-adjusted life-years [QALYs]) the new service provides. Transcatheter aortic valve replacement (TAVR) for severe aortic stenosis is no different. When the PARTNER (Placement of Aortic Transcatheter Valves) Trial was conceived, its forward-thinking investigators prospectively collected resource-based cost information for procedure-related expenses and hospital billing data for downstream costs. TAVR was estimated to cost an additional $76,877/QALY relative to surgical aortic valve replacement in high-risk patients1Reynolds M.R. Magnuson E.A. Lei Y. Wang K. Vilain K. Li H. et al.PARTNER InvestigatorsCost-effectiveness of transcatheter aortic valve replacement compared with surgical aortic valve replacement in high-risk patients with severe aortic stenosis: results of the PARTNER (Placement of Aortic Transcatheter Valves) trial (Cohort A).J Am Coll Cardiol. 2012; 60: 2683-2692Crossref PubMed Scopus (197) Google Scholar and $61,889/QALY relative to medical management among patients not candidates for operation2Reynolds M.R. Magnuson E.A. Wang K. Lei Y. Vilain K. Walczak J. et al.PARTNER InvestigatorsCost-effectiveness of transcatheter aortic valve replacement compared with standard care among inoperable patients with severe aortic stenosis: results from the Placement of Aortic Transcatheter Valves (PARTNER) trial (Cohort B).Circulation. 2012; 125: 1102-1109Crossref PubMed Scopus (224) Google Scholar —placing it squarely in the moderately cost-effective range.3Neumann P.J. Cohen J.T. Weinstein M.C. Updating cost-effectiveness–the curious resilience of the $50,000-per-QALY threshold.N Engl J Med. 2014; 371: 796-797Crossref PubMed Scopus (1487) Google Scholar In this issue of the Journal, McCarthy and colleagues4McCarthy F.H. Savino D.C. Brown C.R. Bavaria J.E. Kini V. Spragan D.D. et al.Cost and contribution margin of transcatheter versus surgical aortic valve replacement.J Thorac Cardiovasc Surg. 2017; 154: 1872-1880Abstract Full Text Full Text PDF PubMed Scopus (27) Google Scholar explain how incremental cost-effectiveness ratios are important from a societal perspective yet offer little insight into financial considerations facing providers and payers and influencing treatment adoption. McCarthy and colleagues4McCarthy F.H. Savino D.C. Brown C.R. Bavaria J.E. Kini V. Spragan D.D. et al.Cost and contribution margin of transcatheter versus surgical aortic valve replacement.J Thorac Cardiovasc Surg. 2017; 154: 1872-1880Abstract Full Text Full Text PDF PubMed Scopus (27) Google Scholar set out to compare hospital marginal profits (revenue minus expenses) for TAVR versus surgical aortic valve replacement in propensity-matched cohorts. They defined revenue as total inpatient dollars paid by Medicare (during a 1-year time horizon) and expenses as inpatient hospital costs, derived from itemized charges and Medicare cost-to-charge ratios. This is a reasonable approach—perhaps the best possible approach for data in the public domain. Readers should be clear, however, that although median cost-to-charge ratio costs (aggregated across institutions) are often used as proxies for resource use,5Keren R. Luan X. Localio R. Hall M. McLeod L. Dai D. et al.Pediatric Research in Inpatient Settings (PRIS) Network. Prioritization of comparative effectiveness research topics in hospital pediatrics.Arch Pediatr Adolesc Med. 2012; 166: 1155-1164Crossref PubMed Scopus (197) Google Scholar they are not the true costs of providing care. Estimates presented here are not synonymous with profit. Itemized cost-to-charge ratio costs are largely fictitious, defined behind a “veil of secrecy.” They are a function of the vagaries of individual hospital cost accounting, the byproduct of decades of cost shifting and jockeying to gain an upper hand in reimbursement negotiations and to minimize tax burdens. Each hospital defines its own “charge master,” arbitrarily setting and updating prices for 20,000 to 50,000 individual billable items6Reinhardt U.E. The pricing of U.S. hospital services: chaos behind a veil of secrecy.Health Aff (Millwood). 2006; 25: 57-69Crossref PubMed Scopus (193) Google Scholar; hospital charges for specific items vary by as much as 1000-fold.7Hsia R.Y. Akosa Antwi Y. Nath J.B. Variation in charges for 10 common blood tests in California hospitals: a cross-sectional analysis.BMJ Open. 2014; 4: e005482Google Scholar The data presented by McCarthy and colleagues4McCarthy F.H. Savino D.C. Brown C.R. Bavaria J.E. Kini V. Spragan D.D. et al.Cost and contribution margin of transcatheter versus surgical aortic valve replacement.J Thorac Cardiovasc Surg. 2017; 154: 1872-1880Abstract Full Text Full Text PDF PubMed Scopus (27) Google Scholar suggest that current hospital financial models favor surgical aortic valve replacement (except where TAVR is accepted as a loss leader). Further, and critically, McCarthy and colleagues4McCarthy F.H. Savino D.C. Brown C.R. Bavaria J.E. Kini V. Spragan D.D. et al.Cost and contribution margin of transcatheter versus surgical aortic valve replacement.J Thorac Cardiovasc Surg. 2017; 154: 1872-1880Abstract Full Text Full Text PDF PubMed Scopus (27) Google Scholar suggest that these differences are driven largely by the currently high cost of transcatheter devices ($30,000 vs approximately $5,000 for a standard surgical valve1Reynolds M.R. Magnuson E.A. Lei Y. Wang K. Vilain K. Li H. et al.PARTNER InvestigatorsCost-effectiveness of transcatheter aortic valve replacement compared with surgical aortic valve replacement in high-risk patients with severe aortic stenosis: results of the PARTNER (Placement of Aortic Transcatheter Valves) trial (Cohort A).J Am Coll Cardiol. 2012; 60: 2683-2692Crossref PubMed Scopus (197) Google Scholar) and frequent transfer penalties incurred by patients undergoing TAVR as the result of systematic shorter lengths of stay and more rapid transition to lower-skilled care facilities. As a society, we should incentivize—not penalize—treatments that shorten lengths of stay. Changes in the current reimbursement model, at least in the short run, might be necessary to accomplish this. One could hope, then, as TAVR use expands, more competitors will enter the device market, driving down costs. This theoretically could allow payers (such as Medicare) to reduce future TAVR payments, driving down the incremental cost-effectiveness ratio without pushing providers out of the market. McCarthy and colleagues' work4McCarthy F.H. Savino D.C. Brown C.R. Bavaria J.E. Kini V. Spragan D.D. et al.Cost and contribution margin of transcatheter versus surgical aortic valve replacement.J Thorac Cardiovasc Surg. 2017; 154: 1872-1880Abstract Full Text Full Text PDF PubMed Scopus (27) Google Scholar provides us with a window into the problem. Without cost transparency, however, one can only guess at the change necessary to shift practice, improve quality, and rein in expenditures. Cost and contribution margin of transcatheter versus surgical aortic valve replacementThe Journal of Thoracic and Cardiovascular SurgeryVol. 154Issue 6PreviewTo compare the cost of and payments for transcatheter aortic valve replacement (TAVR), a novel and expensive technology, and surgical aortic valve replacement (SAVR).
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Brett R. Anderson (2017) conducted an editorial in Severe aortic stenosis. Transcatheter aortic valve replacement (TAVR) vs. Surgical aortic valve replacement was evaluated.
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