Original articleAdult cardiacTrends in Aortic Valve Replacement Procedures Between 2009 and 2015: Has Transcatheter Aortic Valve Replacement Made a Difference?
Section snippets
Patients and Methods
This retrospective study used the annual FY (October 1 to September 30) version of the administrative data sets, Medicare Provider Analysis and Review (MedPAR) files, from 2009 to 2015. The MedPAR file, maintained by the Centers for Medicare and Medicaid Services (CMS), contains all inpatient claims submitted by hospitals without patient identifiers. For each hospitalization, the MedPAR record includes selected patient information, International Classification of Diseases, 9th Edition, Clinical
Results
The number of MBs undergoing isolated aortic valve procedures increased annually from 22,076 in FY-2009 to 49,362 in FY-2015; a compounded average growth rate of 14.4% (Table 1). In addition, the numbers of aortic valve procedures performed per 100,000 MBs increased annually from 47.5 to 88.9. The incidence rate of MBs undergoing only SAVR peaked at 54.0 per 100,000 MBs in FY-2011 before falling to approximately 47.6 per 100,000 MBs by FY-2015. Separately, the number of MBs undergoing TAVR
Comment
This study documents two major volume trends among MBs undergoing isolated aortic valve procedures. First, we identified a 61.2% compounded annual growth in the number of MBs undergoing TAVR between FY-2012 and FY-2015. During FY-2015, MBs undergoing TAVR accounted for 46.2% of all isolated aortic valve procedures in the Medicare population. Second, the number of MBs undergoing SAVR with tissue or mechanical valves grew at a 3.1% compounded annual growth rate during the study period. Although
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