A 22-year-old male is transported to the trauma bay via helicopter following a high-speed motorcycle collision where he was ejected and found without a helmet. Upon arrival, his blood pressure is 165/95 mm Hg, and his heart rate is 55/min. He does not open his eyes to pain, makes incomprehensible sounds, and exhibits extension of his arms and legs in response to painful stimuli. Examination reveals a 6-mm, nonreactive right pupil and a 3-mm, briskly reactive left pupil.
Arrange the following management steps in the most appropriate chronological order for this patient.
- 1Perform endotracheal intubation with in-line cervical spine stabilization
- 2Administer an intravenous hyperosmolar agent
- 3Obtain an urgent noncontrast head computed tomography (CT) scan
- 4Transfer to the operating room for decompressive craniotomy
Answer
The correct sequence is: 1) Perform endotracheal intubation, 2) Administer an intravenous hyperosmolar agent, 3) Obtain a noncontrast head CT scan, 4) Transfer to the operating room for decompressive craniotomy.
The management of a severe traumatic brain injury with signs of impending herniation follows a strict, sequential algorithm prioritizing the airway, temporization of intracranial pressure (ICP), and definitive diagnosis followed by surgical treatment. The patient has a GCS of 5 (Eyes 1, Verbal 2, Motor 2), Cushing reflex (hypertension and bradycardia), and an asymmetric, unreactive pupil (indicating right uncal herniation). The first priority is securing the airway via endotracheal intubation with cervical spine precautions, as a GCS < 8 indicates an inability to protect the airway. Next, because there are overt clinical signs of herniation, empirical medical therapy to lower ICP (such as intravenous mannitol or hypertonic saline) must be administered immediately. This should not be delayed for imaging. After these temporizing measures are initiated, a noncontrast CT scan of the head is obtained to identify the underlying pathology (e.g., epidural or subdural hematoma). Finally, based on the imaging findings, the patient is taken to the operating room for definitive surgical decompression.
Step-by-Step Solution
Key Concept
Management algorithm for severe traumatic brain injury with impending brain herniation