Management of Anisochoric Pupil After Head Trauma

Initial Assessment

The American College of Surgeons recommends immediate non-contrast CT scan to characterize potential intracranial hematomas, midline shift, or other traumatic brain injuries in patients with anisocoria after head trauma 2
A complete neurological assessment using Glasgow Coma Scale (GCS), detailed pupillary examination (size, reactivity, and symmetry), and evaluation of focal neurological deficits is essential in patients with anisocoria after head trauma 2
The use of anticoagulant or antiplatelet medication increases the risk of hematoma expansion in patients with anisocoria after head trauma 2
Securing the airway with tracheal intubation is recommended if GCS ≤8 or if there are signs of increased intracranial pressure in patients with anisocoria after head trauma 2

Preoperative anisocoria is considered a criterion for intracranial pressure (ICP) monitoring after evacuation of post-traumatic intracranial hematoma, according to the Anaesthesia guideline 1, 3

For patients with anisocoria and abnormal CT findings, urgent neurosurgical consultation for potential surgical evacuation is recommended, as stated by the Praxis Medical Insights guideline 2, 4
Decompressive craniectomy may be considered, especially in younger patients with refractory intracranial hypertension, as suggested by the Praxis Medical Insights guideline 2, 4
After hematoma evacuation, ICP monitoring is strongly indicated if anisocoria was present preoperatively, according to the Anaesthesia and Praxis Medical Insights guidelines 1, 3
Maintaining cerebral perfusion pressure between 60-70 mmHg is recommended, as stated by the Anaesthesia guideline 1, 3
Avoiding cerebral perfusion pressure >70 mmHg is recommended, as it increases the risk of respiratory distress syndrome, according to the Anaesthesia guideline 1

Delaying neuroimaging in patients with anisocoria after head trauma is a pitfall to avoid, as recommended by the Praxis Medical Insights guideline 2
Overlooking the need for ICP monitoring after hematoma evacuation in patients with preoperative anisocoria is a pitfall to avoid, according to the Anaesthesia and Praxis Medical Insights guidelines 1, 3
Failing to maintain appropriate cerebral perfusion pressure (60-70 mmHg) in patients with traumatic brain injury is a pitfall to avoid, as stated by the Anaesthesia guideline 1