Permanent Pacemaker Implantation Following Transcatheter Aortic Valve Implantation: Impact on Late Clinical Outcomes and Left Ventricular Function. Circulation. 2013 Dec 26. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/24370552 1556 patients undergoing transcatheter aortic valve implantation (TAVI) with self expandable valves (SEV) and balloon expandable valves (BEV), evaluating the effect of permanent pacemaker implantation (PPI) on outcomes at two years. 15.4% of the patients required PPI. （SEV (25,5%) >>> BEV (7,1%)) There was no difference in the primary outcome of the study, which was defined as a composite of all-cause mortality and hospitalization due to heart failure at last follow-up. Interestingly, there was a lower rate of unexpected death in patients with PPI. TAVI後のペースメーカーの話。AVRではほとんどないのにね。けどPM入れようがどうしようが、予後には関係ないとのこと。ほんとかな？？