Brain Trauma Foundation Updates Penetrating TBI Guidelines After 25 Years

For 25 years, clinicians treating gunshot wounds, stab injuries, and other penetrating brain trauma have worked from guidelines published in 2001. The Brain Trauma Foundation has now issued a comprehensive update, incorporating a generation of evidence accumulated since that original document and adding something the 2001 guidelines lacked: practical decision-making flowcharts designed for use at the bedside during emergencies.

The updated guidelines, published as a supplement to the March 2026 issue of Neurosurgery, were developed by a working group of more than 30 expert panelists who generated over 30 new evidence-based recommendations. The supplement includes both the formal recommendations and a set of treatment algorithms built through a rigorous Delphi consensus process. The American Association of Neurological Surgeons and the Congress of Neurological Surgeons reviewed and endorsed the guidelines for evidence-based integrity.

Countering a dangerous clinical assumption

The guidelines open by confronting a misconception that the authors argue costs lives: the belief that penetrating traumatic brain injury (pTBI) is uniformly unsurvivable and that aggressive care is therefore futile.

"There are many misconceptions in medicine, and the idea that all penetrating brain injury is uniformly non-survivable is certainly one of them," write Gregory W. J. Hawryluk, MD, PhD, of the Cleveland Clinic, Randy Bell, MD, of the University of South Dakota, and colleagues. The guidelines emphasize two key points. First, pTBI patients who survive to reach a trauma center and for whom care is not considered futile often achieve the same or better outcomes than comparably injured patients with closed traumatic brain injury. Second, in nearly every clinical circumstance, pTBI is a surgical disease.

The implication is that premature nihilism - deciding care is futile before proper assessment - may be withdrawing viable treatment from patients who could survive with good function.

The master care pathway

The centerpiece of the algorithmic supplement is a master pathway applicable to all pTBI patients, followed by modular toolkits addressing specific clinical scenarios. The master pathway walks through pre-hospital management before laying out hospital steps.

On arrival, clinicians are directed to immediately apply advanced trauma life support principles while simultaneously conducting laboratory and imaging analysis. Neurosurgical consultation is recommended at once. The guidelines explicitly note that the dramatic nature of penetrating brain injuries can be cognitively distracting - clinicians must resist the pull to focus exclusively on the head wound and must systematically identify all entry and exit wounds, accounting for the possibility of multiple penetrating injuries and multi-organ involvement.

Specific technique guidance includes avoiding compressive dressings over significant skull disruptions and refraining from probing wounds or debriding brain tissue during initial assessment. Nail gun injuries and stab wounds from which the implement has been removed are highlighted as frequently missed.

Imaging follows resuscitation: CT and CT angiography of head and neck are recommended as soon as the patient is stable enough. Because metal fragments cause scatter artifact on CT, plain skull x-rays retain a role in demonstrating location and trajectory of radio-opaque foreign bodies. Radiolucent objects - glass, wood, some types of stone - require MRI if safely obtainable. If vascular injury including traumatic aneurysm is suspected from CT angiography, the guidelines recommend strong consideration of formal cerebral angiography.

Coagulation management and blood products

The updated guidelines reflect advances in trauma resuscitation science that were not available in 2001. Viscoelastic testing - thromboelastography or rotational thromboelastometry - is recommended to characterize coagulation abnormalities precisely and guide corrective measures, rather than relying on conventional coagulation panels alone. Component blood transfusion in a 1:1:1 ratio of packed red cells, fresh frozen plasma, and platelets - or whole blood transfusion - should begin immediately in patients with more than minimal injury, in anticipation of substantial intraoperative blood loss.

Defining futility - and separating it from prognosis

One of the more carefully constructed elements of the updated guidelines is a formal definition of medical futility, developed to counter premature withdrawal of care. The working group defined futility as: "A proposed therapy should not be performed because available data show that it will not improve the patient's condition." Critically, the guidelines distinguish futility from survivability - a patient may face a difficult prognosis or limited long-term functional outcome but still be survivable with aggressive treatment. Decisions to withhold care should be based on the former, not assumptions derived from the latter.

A dedicated toolkit in the algorithmic supplement walks clinicians through futility assessment for individual pTBI patients.

Additional toolkits for specific injury patterns

Beyond the master pathway, the supplement includes toolkits addressing: surgical management principles for pTBI in general; management of protruding foreign bodies; severe injuries with multiple involved lobes, mass lesion, midline shift, or edema; penetrating skull base injury; and traumatic vascular injury. Each toolkit is designed to be used in conjunction with the master pathway rather than as a standalone document.