• Robert Ziechmann, Haydn Hoffman, and Lawrence S Chin.
• Department of Neurosurgery, State University of New York Upstate, Syracuse, New York, USA. Electronic address: rcziechmann@gmail.com.
• World Neurosurg. 2019 Jan 1; 121: e113-e118.

BackgroundAn academic genealogy describes mentoring relationships in an academic discipline. In this study, we outline an academic genealogy of neurosurgery department chairs in the United States beginning with the founding members of the field.MethodsThe biographic information provided by the Society for Neurological Surgery provided the basis for our genealogy. We also performed a literature review with PubMed using the term neurosurgery department history. Our data was manually uploaded to an online database called Academic Tree. Within this platform, mentor and trainee relationships were indicated to produce an academic genealogy.ResultsOur search yielded a total of 377 chairs and 368 mentoring relationships across 98 neurosurgery departments. The largest family tree in our academic genealogy was that of Harvey Cushing, with 177 department chairs. Harvey Cushing was also the individual who trained the most number of department chairs (22). The institution that trained the most department chairs was Brigham and Women's Hospital (26). Only 23.6% of department chairs completed residency training at the same institution where they became chair.ConclusionsThe academic genealogy in this study allows for any neurosurgeon trained in the United States to put his or her training into historical context. It also provides a reference for bibliographic research to quantitatively describe the influence of individuals and institutions on the field.Copyright © 2018 Elsevier Inc. All rights reserved.

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