We wish to thank the United States Department of Defense and specifically the United States Army Medical Research and Development Command for funding our work (BA200139). We additionally thank the Henry Jackson Foundation and Depart-ment of Neurological Surgery at Walter Reed National Military Medical Center for their support of this work and our in-person meeting in Bethesda Maryland. We specifically wish to thank Dr. Eric Elster, Dean of the Uniformed Services University of Health Sciences for his warm welcome and institutional support. We additionally thank the Center for Neural Regenerative Medicine and the Military Traumatic Brain Injury Initiative for their kind assistance of our work and our in-person meeting. In particular we thank Drs. Bradley Dengler and Teodoro Tigno as well as Mr. Benson Akinsiku. Cristina Tecson in particular has our gratitude for her thoughtful and most capable assistance.

Numerous individuals made initial contributions to this work, which, while tremendously appreciated, were ultimately not sufficient for authorship based on pre-specified criteria. We thank Dr. Danielle Dang who provided assistance to Dr. James Ecklund.

The first edition pTBI guidelines were not created by the Brain Trauma Foundation. We thus thank the authors of the first edition of the pTBI guidelines including: Bizhan Aarabi, Tord D. Alden, J. Hunter Downs III, James M. Ecklund, Howard M. Eisenberg, Elana Farace, Robert E. Florin, John A. Jane, Jr., Mark D. Krieger, Andrew I. R. Maas, Raj K. Narayan, Alexander A. Potapov, Andres M. Salazar, Mark E. Shaffrey, Beverly C. Walters. We recognize and appreciate their creation of a high quality first edition docu-ment which served as a foundation for the 2nd edition guidelines. Permission to update the guidelines was provided by Beverly C. Walters. Our detailed review of the first edition and work to build upon that initial document has served as a strong foundation for us to build off of. We appreciate the perspectives of Drs. Bizhan Aarabi and Jim Ecklund who were authors on the first edition as well as the current second edition.

We also wish to thank medical personnel who courageously care for pTBI victims throughout all phases of care. pTBI victims generally have substantial and complex care needs throughout their recovery and beyond. These caregivers know best of all how ex-cellent care translates to improved outcomes for these patients. We hope that our work provides medical personnel with evidence-based best practice recommendations and consensus expert opinion in the many instances where evidence is lacking. Most importantly we wish to thank those who serve, placing themselves in harms way, disproportionately falling victim to these most cruel of injuries.

The authors wish to express their most sincere gratitude to our patient representative, Joshua Cooley, and his mother, Christine Cooley. Sgt. (ret) Josh Cooley suffered a severe penetrating brain injury from an improvised explosive device while deployed to Iraq in 2005. He was initially stabilized by military neurosurgeons down range, after which he was transferred to Walter Reed for his ongoing neurosurgical care and subsequent cranial reconstruction. With the loving care of his mother, Josh made a remarkable recovery, eventually able to ride horses and sing on stage with Toby Keith. Josh and Christine attended our in-person guidelines consensus conference in September 2023, where they shared Josh's story and participated in aspects of guideline generation. One month later, and after 18 years of thriving and inspiring the countless individuals privileged to know him, Josh passed away. We are humbled by Josh s dignity, courage, and determination, and we will be forever grateful to both Josh and Christine for honoring our effort with their participation.