Anesthesia management for transapical transcatheter aortic valve implantation: a case series - Fassl, Jens; Walther, Thomas; Groesdonk, Heinrich Volker; Kempfert, Joerg; Borger, Michael Andrew; Scholz, Markus; Mukherjee, Chirojit; Linke, Axel; Schuler, Gerhard; Mohr, Friedrich Wilhelm; Ender, Joerg (Journal of cardiothoracic and vascular anesthesia, 2009)