AI Article Synopsis
- - The study analyzed data from the Nationwide Readmissions Database (2015-2018) to assess trends and outcomes for trans-septal transcatheter mitral valve replacement (TS-TMVR) in the U.S., noting a significant increase in procedures from 48 in 2015 to 978 in 2018, especially among women and diabetic patients.
- - Despite the rise in procedures and performing centers, the overall in-hospital mortality rate (7.2%) and the frequency of complications remained stable, with a median hospital stay decreasing over time.
- - The main causes for 30-day readmissions were acute heart failure, bleeding, and infections, with certain risk factors like prior coagulopathy linked to
Article Abstract
Background: There is a paucity of real-world data regarding the temporal trends and outcomes of trans-septal transcatheter mitral valve replacement (TS-TMVR) in the United States (US).
Methods: We queried the Nationwide Readmissions Database (October 2015 to December 2018) for patients undergoing TS-TMVR procedures. We reported the temporal trends in the utilization, in-hospital outcomes and 30-day readmissions after TS-TMVR. The main study outcome was in-hospital mortality.
Results: There was an increase in the number of TS-TMVR procedures over time (48 in 2015 vs. 978 in 2018, P < 0.001), with a notable increase in the proportion of women (P = 0.04) and the prevalence of diabetes (P = 0.03). There was an increase in the number of centers performing TS-TMVR (21 in 2015 vs. 164 in 2018, P < 0.001). The overall in-hospital mortality was 7.2% with no change over time (6.3% in 2015 vs. to 5.2% in 2018, P = 0.67). There was no change in the frequency of in-hospital complications after TS-TMVR; however, the median length of stay has decreased over time. The overall 30-day readmission rate was 17.8%, with no change during the study years. The most frequent cause for 30-day readmission after TS-TMVR was acute heart failure followed by bleeding and infection-related complications. Prior coagulopathy and small-sized hospitals were independently associated with higher in-hospital mortality and 30-day readmissions.
Conclusion: This nationwide observational analysis of real-world data showed an increase in the number of TS-TMVR procedures over time, which is now performed at a greater number of centers. There was no change in the rate of in-hospital mortality, complications or 30-day readmissions; but a significant reduction in the length of hospital stay over time was noted. As the number of TS-TMVR continue to expand, these data provide a perspective on the early experience with this procedure.
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