Management of Elderly Patients with Subdural Hematoma

Rationale for Admission and Observation

The British Journal of Anaesthesia recommends admission with close neurological observation for 24-72 hours with serial clinical assessments and repeat imaging for patients with subdural hematoma and GCS 14, rather than immediate surgery or discharge 1, 2
The American College of Emergency Physicians suggests that any patient with documented subdural hematoma on CT requires admission regardless of GCS, as delayed deterioration can occur 3, 4

The Scandinavian protocols recommend serial GCS monitoring every 15 minutes for the first 2 hours, then hourly for the following 12 hours 5
Documenting individual GCS components (Eye, Motor, Verbal) rather than just sum scores is crucial, as component profiles predict outcomes 5
Assessing pupillary size and reactivity at each evaluation is key, as these are prognostic indicators 5

A decrease of 2 or more points in GCS score warrants immediate repeat CT scanning 5
Failure to show neurological improvement within 72 hours is a negative prognostic factor requiring reassessment of management strategy 2

Maintaining mean arterial pressure ≥80 mmHg ensures adequate cerebral perfusion 2
Maintaining oxygen saturation >95% prevents hypoxemic secondary injury 2
Correcting confounding factors, including sedating medications, alcohol, or metabolic derangements, is essential 1

Clinical deterioration with GCS decline of ≥2 points requires neurosurgical evacuation 5
Development of focal neurological deficits indicating mass effect necessitates surgical intervention 6

The American Academy of Neurology advises against administering long-acting sedatives or paralytics before neurosurgical evaluation, as this masks clinical deterioration 2
Irreversible decisions should not be made before 72 hours unless brain death criteria are met or there is clear clinical deterioration 2
Serial GCS assessments provide substantially more valuable clinical information than a single determination, with declining scores indicating poorer prognosis 5
Delaying correction of secondary insults (hypotension, hypoxia) while waiting to prognosticate is not recommended 2

Patients with mild traumatic brain injury (GCS 13-15) and abnormal neurological findings should be admitted because approximately 1 in 4 will require treatment, according to the American College of Emergency Physicians 7
Discharge is contraindicated for patients with subdural hematomas, even those with normal examinations, due to the risk of delayed deterioration requiring neurosurgery, as noted by the American College of Emergency Physicians 8
The American Society of Anesthesiologists suggests that ICU admission with intubation is premature for a patient with GCS 14 who can protect their airway, unless there is evidence of herniation or rapidly deteriorating neurological status 9

In elderly patients, age per se is not a valid reason to limit treatments, though frailty is a superior predictor of poor outcome, according to the World Society of Emergency Surgery 10
The World Society of Emergency Surgery recommends that patients who do not show signs of improvement within 72 hours should be carefully evaluated before undergoing further aggressive treatment, with neurological status at 72 hours being a good prognostic factor for in-hospital death but not a valid tool to predict long-term outcomes for survivors 10

Signs of herniation, such as pupillary changes or posturing, are indications for surgical intervention, as suggested by the American Society of Anesthesiologists 9

The original GCS validation studies demonstrated that approximately 13% of patients who became comatose had an initial GCS score of 15, illustrating the inadequacy of a single assessment, according to the American College of Emergency Physicians 11