Author Contributions: Dr Blackstone and Ms Batizy had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Tarakji, Sabik, Bhudia, Blackstone.
Acquisition of data: Tarakji, Bhudia.
Analysis and interpretation of data: Tarakji, Sabik, Batizy, Blackstone.
Drafting of the manuscript: Tarakji, Sabik, Batizy, Blackstone.
Critical revision of the manuscript for important intellectual content: Tarakji, Sabik, Bhudia, Batizy, Blackstone.
Statistical analysis: Batizy, Blackstone.
Obtained funding: Sabik, Blackstone.
Administrative, technical, or material support: Sabik, Blackstone.
Study supervision: Tarakji, Sabik, Blackstone.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Sabik reported receiving honoraria from Medtronic Inc for presentations on coronary artery bypass surgery techniques. No other authors reported disclosures.
Funding/Support: This study was funded in part by the Cleveland Clinic Department of Thoracic and Cardiovascular Surgery and the Kenneth Gee and Paula Shaw, PhD, Chair in Heart Research, held by Dr Blackstone.
Role of the Sponsors: The study sponsors had no role in the design and conduct of the study; the collection, analysis, and interpretation of the data; or the preparation, review, or approval of the study.
Institutional Review Board Approval: Preoperative, operative, and postoperative variables were retrieved from the Cleveland Clinic Cardiovascular Information Registry, a database maintained concurrently with patient care. It has been approved for use in research by the Cleveland Clinic institutional review board (IRB), with patient consent waived. Supplemental IRB approval was obtained to abstract details of each stroke and occurrence of new-onset postoperative atrial fibrillation in relation to stroke.
Additional Contributions: We thank Joan M. Alster, MS, and Jing Feng, MS, Department of Quantitative Health Sciences, Cleveland Clinic, for additional statistical support; and Tess Muharsky Parry, BS, Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, for editorial assistance. None of these individuals received compensation for their contributions.