Trauma in elderly patients: A neurosurgical perspective

More than one in six Australians is now aged 65 or over, and falls are a leading cause of injury death in this age group. In emergency departments across Sydney, Melbourne, Brisbane and regional Australia, an older patient with a head strike may appear well enough for discharge while harbouring an expanding intracranial haemorrhage. Low-energy trauma in this population is not necessarily minor.

Ageing changes the brain’s tolerance of injury. Cerebral atrophy increases the distance between bridging veins and the brain surface, while reduced physiological reserve limits compensation for bleeding. Antithrombotic medicines add another layer of risk, particularly when renal function and medication adherence are uncertain. The resulting injury may be severe even after a fall from standing height.

Trauma in elderly patients therefore demands more than a scan and a routine observation period. Neurosurgical assessment must integrate neurological findings, medication history, baseline function and the patient’s goals. The central question is rarely whether an older person is “too old” for treatment, but which treatment offers a meaningful chance of recovery that aligns with how that person valued life before the injury.

Why older patients bleed differently

Age alone does not determine outcome, but it does alter the probability of intracranial bleeding and the capacity to tolerate it. Atrophy creates more space within the fixed volume of the skull, allowing a subdural haematoma to expand before obvious neurological deterioration. Small shifts may also produce disproportionate changes in consciousness, particularly when the patient has dementia or another pre-existing neurological condition.

Falls in older adults commonly disrupt bridging veins, producing subdural bleeding that can be acute, chronic or a mixture of both. Acute epidural haematomas are comparatively less frequent because the dura is more firmly attached in older people. A patient with a lucid interval after a head injury can still deteriorate suddenly, and chronic subdural bleeding may present weeks later with headache, confusion, falls or progressive functional decline rather than a dramatic neurological deficit.

Anticoagulants and antiplatelet drugs do not create bleeding by themselves, but they can permit haematoma expansion and complicate surgery. Even an apparently trivial impact deserves careful medication review. For background reading and literature retrieval, the curated e-library provides a useful starting point for clinicians and students reviewing the evidence.

Falls, vehicles and the Australian context

Falls from standing height are common in Australian communities, particularly among people living alone, taking multiple medicines or managing mobility problems. Stairs, bathroom floors and uneven garden paths can each generate enough acceleration to injure an ageing brain. Heat in northern Australia adds another seasonal hazard: dehydration, orthostatic symptoms and reduced activity increase the likelihood of a fall.

Motor vehicle trauma presents a different but overlapping challenge. Public hospital care is generally provided through Medicare, while compensation for eligible road-crash injuries is arranged separately. Victoria’s Transport Accident Commission and NSW’s icare scheme can fund approved treatment following qualifying accidents. Private hospital insurance remains separate, so clinicians should not assume a patient’s treatment costs will follow the same pathway as ordinary elective care.

Emergency systems are also organised by state and territory. Ambulance Victoria, NSW Ambulance and Queensland Ambulance each follow local dispatch and transport protocols, with 000 used for emergencies. Major trauma networks in Melbourne, Sydney, Brisbane and Adelaide support rapid access to neurosurgery, although pathways vary across metropolitan, rural and remote areas. For difficult or ambiguous cases, the clinical peer forum offers a place for clinicians to exchange reasoning without replacing local protocols.

Assessment that reaches beyond the skull

A structured primary survey remains essential: airway, breathing, circulation, disability and exposure should be followed by a cervical spine assessment, glucose testing and a careful search for associated injuries. The neurological examination should record the Glasgow Coma Scale score, pupils, focal deficits and any clear change from the patient’s usual baseline. In an older person with dementia, establishing that baseline may be as important as identifying a new deficit.

Medication reconciliation is a high-yield task. Document the exact drug, dose, last dose, indication and renal function for warfarin, direct oral anticoagulants and antiplatelet agents. Sedatives, alcohol and insulin can confound consciousness or precipitate injury. Information from family, carers, ambulance crews and pharmacy records may be decisive when the patient cannot provide a reliable history.

The time of injury, the patient’s last known well state and pre-injury function should also be recorded. Frailty, controlled comorbidities and rehabilitation potential influence decisions alongside age. Goals of care and advance care plans deserve attention, but they should be incorporated into real-time decision-making rather than treated as paperwork. Early involvement of geriatric medicine, nursing, physiotherapy and occupational therapy is valuable when the injury has created complex needs.

Imaging and time-critical treatment

Non-contrast head CT is the usual first-line investigation for suspected acute intracranial bleeding. Clinical prediction rules can support imaging decisions, but no rule safely replaces judgement in an anticoagulated older patient with an atypical presentation. A reliable early scan reduces the need for unnecessary repeat imaging; neurological deterioration, however, requires prompt reassessment and often another CT.

The Intracranial Haemorrhage Score gives two points for age of 80 years or older, reinforcing the need for vigilance beyond the mechanism of injury. The score assists risk stratification but does not determine whether neurosurgery is appropriate. Repeat imaging should be guided by new findings, unreliable baseline observations or clinical concern about an evolving haematoma, ischaemic injury or hydrocephalus.

Reversal decisions must balance bleeding risk against thrombosis risk and involve the appropriate specialty teams. Tranexamic acid may be considered for significant traumatic brain injury within three hours of injury, while its use in anticoagulant-associated intracerebral haemorrhage is a separate clinical question. Access to reversal agents and blood products differs between metropolitan and regional hospitals, so retrieval decisions should not assume immediate local availability. The Pharmaceutical Benefits Scheme supports eligible prescription medicines, but inpatient emergency treatment and blood products use different funding arrangements. In remote areas, state aeromedical services and the Royal Flying Doctor Service help bridge these geographical gaps.

Choosing conservative or operative care

For acute subdural haematoma, thickness greater than 10 mm or midline shift greater than 5 mm commonly prompts urgent surgical review. These are thresholds for escalation, not automatic operating criteria. The patient’s conscious state, pupillary findings, anticoagulant use, comorbidities and premorbid function must be considered alongside the scan. Delaying surgery in a deteriorating patient can eliminate options that appeared reasonable on arrival.

Operative choices range from craniotomy and evacuation to selected minimally invasive approaches. Older adults may benefit substantially, particularly when a chronic or acute-on-chronic haematoma is treated before profound deterioration. Conversely, surgery may offer little benefit when injury is irreversible, brainstem function is lost or a patient’s established wishes preclude intervention. Frailty assessment helps refine prognosis, but an age-based cut-off is neither fair nor clinically reliable.

Several contrasts shape the decision:

Feature	Typical younger-adult pattern	Typical older-patient pattern	Clinical implication
Injury mechanism	Higher-energy crash or assault	Low-energy fall or household injury	Modest trauma can cause serious bleeding
Bleeding pattern	Contusion, epidural haematoma or traumatic subarachnoid haemorrhage	Subdural or acute-on-chronic subdural bleeding	Look carefully for venous bleeding
Intracranial reserve	Greater tissue volume	Age-related cerebral atrophy	Smaller haematomas may cause greater shift
Antithrombotic exposure	Variable	More frequent anticoagulant or antiplatelet use	Establish the exact drug and last dose
Functional baseline	Often relatively independent	Frailty, cognitive impairment or dependence may coexist	Document pre-injury function and priorities

Neurosurgical care does not end with the decision to operate or observe. rehabilitation, orthogeriatric review, falls prevention and medication reconciliation can determine whether functional gains persist. The objective is not simply survival, but recovery that is meaningful to the patient.

Turning experience into better care

Trauma in older adults rewards pattern recognition: the unexpected decline after an apparently minor fall, the importance of an accurate medication history, and the value of obtaining a baseline neurological and functional description. These details often change the trajectory more than an additional investigation ordered without a clear question. The wider neurosurgical forum provides another avenue for sharing those observations and challenging management decisions.

Registered members can post de-identified cases, reply to colleagues, subscribe to updates and participate in open clinical discussions. Useful contributions describe the mechanism, baseline function, medicines, imaging, treatment choices and subsequent outcome while protecting patient identity. Post a case, share a management lesson or subscribe to ongoing neurosurgical discussions through Thamburaj.