BUELACH, Switzerland--(BUSINESS WIRE)-- BIOTRONIK AG announced that the six-month results of the ENERGY Registry were presented last week by Prof. Raimund Erbel at the Transcatheter Cardiovascular Therapeutics (TCT 2011) conference. This all-comers registry is investigating the safety and clinical performance of the PRO-Kinetic Energy stent system in 1016 patients, including a subanalysis with small vessels, diabetic and elderly patients.