Figure 1. Combat Casualty Care Pathway: Interhospital transfer of inpatients from Afghanistan and Iraq to Walter Reed Army Medical Center.
US Air Force Transportation Regulating Command and Control Evacuation System aircrew mission manifests provided longitudinal tracking of all patient movements from the combat zones to our hospital. Twenty Army/Air Force casualties were diverted to NNMC for treatment of penetrating and complex blunt head injuries; 13 penetrating are included in the totals. However, 7 Army/Air Force closed head injuries at NNMC (5 blast mechanisms and 2 blunt mechanisms) are excluded from our dataset. When penetrating intracranial and blast trauma were in conflict, penetrating was always taken in preference to all other mechanisms. Neuroimaging in Afghanistan or Iraq was often performed as a routine component of whole-body trauma scans: head, chest, abdomen, and pelvis. NNMC = National Naval Medical Center; TBI = traumatic brain injury.