The National ICD Registry has proven to be a remarkably successful partnership between HRS and ACCF collecting data from over 206,604 ICD implant procedures from 1,224 hospitals and 3,889 implanting physicians in 2006-2007. Benchmarking reports have allowed each hospital to review its outcomes from ICD implantation compared to hospitals of similar procedural volume and a national aggregate on a quarterly basis. Several important research publications have been developed and published that highlight the use of ICDs in the general population outside the constraints of randomized clinical trials. ICD Registry data will be combined with Medicare Claims Data and National Death Index data to enhance outcome reporting. Version 2.0 has been developed and will be available for general use in 2009. This improved, expanded version of the Registry's data collection form will correct concerns with the initial data entry form, add elements that were missing, and expand data collection to include ICD and pacemaker leads and pediatric ICD implantations. The lead data will be utilized as a post market approval surveillance tool and allow long-term followup of lead performance and lead procedure outcomes. The Longitudinal ICD Registry study has received adequate funding to allow the study to begin collecting patient data to answer the CED questions posed by CMS. The recently held Health Industry Forum highlighted that registries such as the National ICD Registry complement randomized controlled trials by: documenting how technologies are used in actual practice; providing post market approval surveillance; allowing research to be developed on registry data that may significantly influence practice; and providing data to hospitals and physicians for benchmarking performance and to inform quality improvement.13. © 2008 Heart Rhythm Society.