1. Introduction -- 2. Historical background -- 3. Epidemiologic consideration on transcatheter therapies for structural heart disease : an unmet clinical need -- 4. Balloon aortic valvuloplasty : current techniques and clinical utility / Ted Feldman -- 5. Introduction of new technologies -- 6. Access to the aortic valves -- 7. Device-related insights into the aortic root anatomy -- 8. Physiologic response to aortic valved stent with emphasis on coronary flow -- 9. Experimental data -- 10. Preclinical valved stent device testing / Jack D. Lemmon -- 11. Experimental studies in vivo -- 12. Clinical results of aortic transcatheter valve therapies -- 13. Company overview -- 14. Future perspectives and conclusion.