Key result
A Monte Carlo Simulation incorporating patient preferences found that 75.1% of patients with aortic stenosis prefer transcatheter aortic valve replacement over surgical aortic valve replacement.
Why the study?
Choosing between SAVR and TAVR requires patients to trade off benefits and risks, creating a need to evaluate which treatment outcomes patients consider important and quantify their treatment preferences.
Does patient preference favor TAVR or SAVR when trading off procedural invasiveness against clinical risks and benefits in patients with aortic stenosis?
Cross-Sectional (n=93)
Does patient preference favor TAVR or SAVR when trading off procedural invasiveness against clinical risks and benefits in patients with aortic stenosis?
Most AS patients are willing to tolerate sizable increases in clinical risk in exchange for the reduced invasiveness of TAVR, resulting in a large proportion preferring TAVR to SAVR.
Answers are grounded in this paper and cite their sources.
Patient preferences may inform shared decision-making in aortic stenosis; leaves open prospective validation before guiding practice.
<ns3:p> <ns3:bold>Background</ns3:bold> : Aortic stenosis (AS) treatments include surgical aortic valve replacement (SAVR) and transcatheter aortic valve replacement (TAVR). Choosing between SAVR and TAVR requires patients to trade-off benefits and risks. The objective of this research was to determine which TAVR and SAVR outcomes patients consider important, collect quantitative data about how patients weigh benefits and risks, and evaluate patients’ preferences for SAVR or TAVR. </ns3:p> <ns3:p> <ns3:bold>Methods</ns3:bold> : Patients were recruited from advocacy organization databases. Patients self-reported as being diagnosed with AS, and as either having received AS treatment or as experiencing AS-related physical activity limitations. An online adapted swing weighting (ASW) method – a pairwise comparison of attributes – was used to elicit attribute tradeoffs from 93 patients. Survey data were used to estimate patients’ weights for AS treatment attributes, which were incorporated into a quantitative benefit-risk analysis (BRA) to evaluate patients’ preferences for TAVR and SAVR. </ns3:p> <ns3:p> <ns3:bold>Results</ns3:bold> : On average, patients put greater value on attributes that favored TAVR than SAVR. Patients’ valuation of the lower mortality rate, reduced procedural invasiveness, and quicker time to return to normal quality of life associated with TAVR, offset their valuation ofthe time over which SAVR has been proven to work. There was substantial heterogeneity in patients’ preferences. This was partly explained by age, with differences in preference observed between patients <60 years to those ≥60 years. A Monte Carlo Simulation found that 75.1% of patients prefer TAVR. </ns3:p> <ns3:p> <ns3:bold>Conclusions</ns3:bold> : Most AS patients are willing to tolerate sizable increases in clinical risk in exchange for the benefits of TAVR, resulting in a large proportion of patients preferring TAVR to SAVR. Further work should be undertaken to characterize the heterogeneity in preferences for AS treatment attributes. Shared decision-making tools based on attributes important to patients can support patients’ selection of the procedure that best meets their needs. </ns3:p>
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Marsh et al. (2019) conducted a cross-sectional in Aortic stenosis (n=93). Transcatheter aortic valve replacement (TAVR) vs. Surgical aortic valve replacement (SAVR) was evaluated on Patient preference for TAVR over SAVR. A Monte Carlo Simulation incorporating patient preferences found that 75.1% of patients with aortic stenosis prefer transcatheter aortic valve replacement over surgical aortic valve replacement.
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