Author Contributions: Dr Ong had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Ong, Ornato, Dhindsa, Peberdy.
Acquisition of data: Ong, Edwards, Ines, Hickey, Clark, Williams, Powell, Overton.
Analysis and interpretation of data: Ong, Best.
Drafting of the manuscript: Ong, Ornato, Best.
Critical revision of the manuscript for important intellectual content: Ong, Edwards, Dhindsa, Best, Ines, Hickey, Clark, Williams, Powell, Overton, Peberdy.
Statistical analysis: Ong, Best.
Administrative, technical, or material support: Ong, Edwards, Dhindsa, Ines, Hickey, Clark, Williams, Powell, Overton.
Study supervision: Ornato, Peberdy.
Financial Disclosures: Dr Ornato is a Science Advisor to ZOLL Circulation (Sunnyvale, Calif), the manufacturer of the Autopulse device used in the study. Dr Ornato reported receiving reimbursement for travel expenses to Science Advisory board meetings approximately twice yearly and a small honorarium amounting to less than $2000 per year. He reported no other financial benefits (stock, stock options) from this relationship. Because of this relationship, Dr Ornato did not have access to data acquisition, entry, or analysis during this study. No other authors reported financial disclosures.
Funding/Support: This study was not a sponsored project. The 3 LDB devices used during the evaluation phase were provided free by ZOLL Circulation. Eight additional devices were loaned to the EMS system by the manufacturer for 12 months when ambulance deployment occurred to provide feedback to the manufacturer on the device’s design/durability on ambulances. The EMS system subsequently purchased all of the devices along with 7 additional units.
Acknowledgment: We are grateful for the voluntary contributions of Thomas Franck, MD, MPH, Department of Epidemiology and Community Health, Virginia Commonwealth University; Andrew J. Anderson, Department of Emergency Medicine, Richmond Community Hospital; Patti Aldridge, RN, Department of Emergency Medicine, Retreat Hospital; and Lorie Liptak, Chris Schaeffer, Richard Pertgen, and Derek Andresen, all from the Richmond Ambulance Authority.