The study, which captured approximately 90% of all patients who underwent TAVR in the United States during the study period, adds to a limited evidence base on the use of conscious sedation in this setting. Among those treated via conscious sedation, 5.9% were converted to general anesthesia. Compared with patients undergoing conscious sedation, those who received general anesthesia were older, less likely to be deemed inoperable or extreme surgical risk, and more likely to receive a balloon-expandable bioprosthesis.

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