Management of Stable Elderly Patient with Subdural Hematoma

Rationale for Repeat Imaging

The American College of Emergency Physicians recommends that any documented subdural hematoma on CT requires admission, regardless of GCS score, as delayed deterioration can occur even in neurologically stable patients 1
Elderly patients (≥65 years) on aspirin with subdural hematomas have a 3-fold increased risk of hemorrhage progression (26% vs 9% in non-anticoagulated patients) 2
Patients with subdural hematomas should not be discharged, even with normal examinations, due to risk of delayed deterioration requiring neurosurgery 1

The American College of Emergency Physicians recommends admitting patients for close neurological observation for 24-72 hours with serial clinical assessments 1
Patients should undergo GCS monitoring every 15 minutes for the first 2 hours, then hourly for the following 12 hours 1
Individual GCS components (Eye, Motor, Verbal) and pupillary size/reactivity should be documented at each evaluation 1

Repeat head CT should be obtained at 6-8 hours after initial scan to assess for hemorrhage expansion, as most expansion occurs within the first 6 hours 2
A decrease of 2 or more points in GCS score warrants immediate repeat CT scanning 1

Development of pupillary changes or posturing indicating herniation is a critical threshold for surgical intervention 1
GCS decline of ≥2 points is a critical threshold for surgical intervention 1
Development of focal neurological deficits indicating mass effect is a critical threshold for surgical intervention 1
Failure to show neurological improvement within 72 hours is a critical threshold for surgical intervention 1

Discharging patients with documented subdural hematomas based solely on normal neurological examination is a common pitfall to avoid 1
Administering long-acting sedatives or paralytics before neurosurgical evaluation is a common pitfall to avoid, as this masks clinical deterioration 1
Failing to maintain mean arterial pressure ≥80 mmHg to ensure adequate cerebral perfusion is a common pitfall to avoid 1
Delaying correction of secondary insults (hypotension, hypoxia) while monitoring is a common pitfall to avoid 1

The use of corticosteroids, such as dexamethasone, is not recommended for traumatic brain injury management and may worsen outcomes, as stated by the 2018 guidelines on severe TBI management 3, 4

The American College of Emergency Physicians notes that while data on aspirin-specific risks in mild TBI are limited, the presence of a documented subdural hematoma changes the risk-benefit calculation significantly, and aspirin should be held immediately upon diagnosis of subdural hematoma 5, 6