I cannot create a summary of the requested article because the content provided contains only a server error message ("Error 500") and fragments of text without the full content. The MedPage Today article on the rise in aortic stenosis deaths is not fully loaded in available sources. In the search results provided, there is information about aortic stenosis and TAVI (transcatheter aortic valve replacement), but there is no specific article titled "Aortic Stenosis Mortality Increased After Broad FDA Approval of TAVR". In order to create an accurate and factual summary, I would need the full text of the original article. If you have access to the full text of the article, please share it and I'll be happy to create the required summary.