Management of Long-Term Care Resident After Fall with Head Strike and Normal Initial Neurologic Examination
Obtain a non-contrast head CT scan immediately, then implement serial neurologic monitoring for at least 6-24 hours before considering discharge, with the duration and intensity of observation dependent on anticoagulation/antiplatelet status.
Initial Imaging Decision
The threshold for CT imaging in elderly long-term care residents after head trauma should be very low 1. Even with a normal neurologic examination, obtain a head CT scan because:
- Elderly patients have higher rates of intracranial hemorrhage (ICH) after head trauma (3.9% in anticoagulated vs 1.5% in non-anticoagulated patients) 1
- The risk of deterioration with normal exam alone (without imaging) is unacceptably high in this population
- Long-term care residents frequently have multiple risk factors including anticoagulation, fall mechanisms, and age >65 years
Post-CT Management Algorithm
If Head CT is Normal:
The next steps depend critically on medication status:
For patients on warfarin or NOACs (but NOT aspirin):
- Discharge is reasonable after a brief observation period if neurologically intact 1
- Delayed ICH occurs in only 0.6-1.7% of these patients 1
- Neurosurgical intervention is required in <1% 1
- Most studies used 4-6 hour observation periods, though this may be unnecessary given low deterioration rates during observation 1
For patients on aspirin (especially age ≥65):
- Exercise greater caution - this is a critical caveat 1
- One study found 4% delayed ICH rate, with one requiring neurosurgery and one death 1
- Recommend longer observation (6-24 hours) or repeat CT at 6-24 hours 1, 2
- The evidence for aspirin is weaker and more concerning than for other anticoagulants
For patients NOT on anticoagulation/antiplatelet agents:
- Risk of deterioration with normal CT and normal exam is extremely low (0.006%) 3
- Can discharge safely with return precautions 3
- Routine repeat CT is not indicated 3
Critical Time Window for Deterioration
Neurologic deterioration in anticoagulated elderly patients typically occurs within 6 hours of injury 2. One study found three patients with initial GCS 14-15 became comatose over a mean of 3.83 hours, with three of four deteriorating patients dying 2. This establishes the minimum observation period.
Observation Protocol
During the observation period, implement:
- Serial neurologic checks every 30 minutes until stable, then hourly 3
- Monitor for: altered mental status, new focal deficits, severe headache, repeated vomiting, seizures
- Document GCS at each check
- Lower threshold for repeat imaging if any change occurs
Repeat Imaging Considerations
Routine repeat CT is NOT indicated if 3:
- Initial CT is normal
- Patient remains neurologically intact
- No anticoagulation (or on warfarin/NOACs only)
Consider repeat CT at 6-24 hours if 1, 2:
- Patient on aspirin (especially age ≥65)
- Patient on dual anticoagulant/antiplatelet therapy
- Any neurologic change during observation
- GCS remains <15 after 24 hours 3
Discharge Instructions
Provide explicit return precautions given up to 5% risk of delayed ICH in anticoagulated patients 1:
- Return immediately for: confusion, severe headache, vomiting, weakness, vision changes, seizures, difficulty walking
- Arrange responsible adult supervision for 24-48 hours
- Consider whether to temporarily hold anticoagulation (weigh against thromboembolic risk)
Common Pitfalls to Avoid
- Don't skip imaging based on normal exam alone - elderly patients can deteriorate rapidly despite initially appearing well 2
- Don't treat all anticoagulants the same - aspirin requires more caution than warfarin/NOACs 1
- Don't discharge aspirin patients without extended observation or repeat imaging - this subgroup has higher risk 1
- Don't observe without a specific monitoring protocol - deterioration happens quickly and requires documented serial exams 3