๐ Key Information Summary
- "Faints, fits and funny turns" is the common diagnostic triad encountered in primary care and emergency departments โ the clinician must distinguish syncope, epileptic seizures, and non-epileptic events (psychogenic, metabolic, structural) through a structured history-first approach.
- The single most valuable diagnostic tool is a witness account โ always obtain collateral history from bystanders, family, or paramedics; video capture (e.g., smartphone) is increasingly valuable.
- Syncope accounts for approximately 50% of presentations; features include prodrome (lightheadedness, nausea, visual greying), brief LOC (<30 seconds), rapid recovery, and pallor at onset.
- Epileptic seizures are characterised by abrupt onset without prodrome, cyanosis (not pallor), tonic-clonic activity, post-ictal confusion (minutes to hours), and tongue biting (lateral, not tip).
- Febrile seizures affect 2โ5% of Australian children aged 6 months to 5 years; simple febrile seizures (<15 min, generalised, single episode in 24 h) are benign and do not require anti-epileptic drugs (AEDs).
- Infantile spasms (West syndrome) present with clusters of jackknife spasms, developmental regression, and hypsarrhythmia on EEG โ this is a neurological emergency requiring urgent ACTH or vigabatrin within days of onset.
- Juvenile myoclonic epilepsy (JME) presents in adolescence with early-morning myoclonic jerks, generalised tonic-clonic seizures, and typical absence; valproate is effective but contraindicated in women of childbearing potential โ levetiracetam or lamotrigine are preferred alternatives.
- Childhood absence epilepsy presents with frequent brief staring episodes (5โ30 seconds) with abrupt onset/offset; ethosuximide is first-line; sodium valproate and lamotrigine are second-line options.
- Orthostatic (postural) hypotension is defined as a sustained drop in systolic BP โฅ20 mmHg or diastolic BP โฅ10 mmHg within 3 minutes of standing โ common in the elderly and those on antihypertensives.
- Non-epileptic attack disorder (NEAD) / functional neurological disorder (FND) accounts for 20โ30% of referrals to epilepsy clinics; features include asynchronous limb movements, eyes closed during event, preserved awareness, and event duration >2 minutes without post-ictal confusion.
- Red flags requiring emergency referral: first seizure, status epilepticus (>5 minutes), focal neurological deficit, new headache with seizure, seizure in pregnancy (eclampsia until proven otherwise), suspected cardiac syncope, and syncope during exertion.
- Aboriginal and Torres Strait Islander Australians have higher rates of epilepsy-related hospitalisation and lower rates of neurology specialist access, particularly in remote communities โ culturally safe assessment pathways and telehealth neurology are critical.
- Driving restrictions in Australia: single unprovoked seizure โ no driving for 6 months (private) or 12 months (commercial); epilepsy diagnosis โ seizure-free โฅ12 months on treatment for private licence, โฅ10 years seizure-free for commercial licence (Austroads 2022 guidelines).
Introduction & Australian Epidemiology
The presentation of episodic neurological events โ encompassing "faints, fits, and funny turns" โ is one of the most common and diagnostically challenging scenarios in Australian primary care and emergency medicine. These events span a broad differential including syncope, epileptic seizures, and non-epileptic paroxysmal events (psychogenic, metabolic, cardiac, and structural causes). Misdiagnosis rates remain high, with up to 20โ30% of patients initially diagnosed with epilepsy ultimately found to have non-epileptic events, and conversely, some genuine epilepsy being missed.
In Australia, epilepsy affects approximately 250,000 people (โ1% prevalence), with bimodal incidence peaks in children (<5 years) and older adults (>65 years). The annual incidence is approximately 50โ70 per 100,000. Syncope accounts for 1โ3% of emergency department presentations and up to 6% of acute medical admissions. In Aboriginal and Torres Strait Islander populations, epilepsy prevalence is estimated to be 1.5โ3 times higher than in non-Indigenous Australians, with significantly higher rates of epilepsy-related hospitalisation and mortality.
The structured diagnostic approach described in this article โ the "Faints, Fits and Funny Turns" model โ provides a practical framework for Australian clinicians to systematically evaluate paroxysmal events, initiate appropriate investigations, and ensure timely referral where indicated. The model emphasises history-first diagnosis, targeted investigation, and recognition of at-risk populations.
| Parameter | Australia-wide | Aboriginal & Torres Strait Islander |
|---|---|---|
| Epilepsy prevalence | โ1% (250,000) | 1.5โ3ร higher |
| Annual incidence | 50โ70 per 100,000 | Estimated 80โ150 per 100,000 |
| Febrile seizure prevalence | 2โ5% of children aged 6 moโ5 yr | Higher, linked to higher burden of infectious disease |
| Epilepsy-related mortality (SMR) | 2โ3ร general population | Significantly higher; SUDEP and status epilepticus contribute |
| Neurology access (<12 months) | โ60% of new diagnoses | <30% in remote/very remote areas |
Faints, Fits & Funny Turns Diagnostic Model
The diagnostic approach to paroxysmal events follows a systematic framework: (1) Was this a true loss of consciousness? (2) Was the event epileptic or non-epileptic? (3) If non-epileptic, was it syncope, or another cause? The cornerstone is the history, supplemented by targeted examination and investigation.
The Three-Question Diagnostic Framework
Key Historical Features โ Distinguishing Table
| Feature | Epileptic Seizure | Syncope | Non-Epileptic Event (NEAD) |
|---|---|---|---|
| Trigger | Sleep deprivation, alcohol withdrawal, flashing lights, medication non-adherence | Prolonged standing, pain, emotion, micturition, postural change | Emotional stress, interpersonal conflict (may not be apparent) |
| Prodrome | Aura (dรฉjร vu, epigastric rising, olfactory) โ seconds | Lightheadedness, nausea, visual greying, sweating โ seconds to minutes | Variable; may describe multiple vague symptoms |
| Onset | Abrupt, often from any posture | Gradual, typically upright/standing | Variable; can be dramatic |
| Colour | Cyanosis / dusky | Pale, clammy | Usually normal colour |
| Motor activity | Rhythmic tonic-clonic, ยฑ focal features | Brief myoclonic jerks (<15 sec), stiffening | Asynchronous, thrashing, pelvic thrusting, waxing/waning |
| Duration | 1โ3 min (GTCS); seconds (focal/absence) | <30 seconds typically | >2 min, often 5โ20+ min |
| Eyes | Open, deviated upward or laterally | Open or closed, rolling back | Closed during event (resist eye opening) |
| Tongue biting | Lateral tongue (highly specific) | Rare; tip of tongue | Tip of tongue or none |
| Post-event state | Confusion, drowsiness, headache (minutes to hours) | Rapid recovery (<5 min), no confusion | Rapid recovery or emotional distress; no true confusion |
| Incontinence | Common (urinary); faecal rare | Occasional urinary | Rare (suggests organic if present) |
Essential Investigations โ First-Line Assessment
When to Refer โ Red Flags Requiring Urgent Assessment
- First-ever seizure (any age) โ urgent neurology referral within 2 weeks
- Status epilepticus (seizure >5 min or recurrent seizures without recovery) โ call 000
- Seizure in pregnancy โ eclampsia until proven otherwise; immediate obstetric + medical emergency
- Focal neurological deficit (suggests structural lesion)
- Syncope during exertion or with family history of sudden cardiac death <40 years
- Prolonged QTc (>460 ms female, >440 ms male) on ECG
- Suspected infantile spasms โ urgent EEG within 24 hours
- Headache + seizure (consider space-occupying lesion, meningitis, cerebral venous sinus thrombosis)
Epilepsy Syndromes
Epilepsy is not a single disease but a heterogeneous group of syndromes classified by seizure type, age of onset, EEG findings, and aetiology. The ILAE 2017 classification organises epilepsy by onset (focal, generalised, unknown) and aetiology (genetic, structural, metabolic, immune, unknown). Australian management aligns with the eTG Neurology guidelines and the Epilepsy Society of Australia consensus statements.
Febrile Seizures
Febrile seizures are the most common seizure disorder of childhood, affecting 2โ5% of Australian children aged 6 months to 5 years. They are triggered by fever โฅ38ยฐC (typically from viral upper respiratory infection, otitis media, or roseola) in the absence of intracranial infection or prior afebrile seizure.
| Type | Criteria | Risk of Epilepsy | Management |
|---|---|---|---|
| Simple febrile seizure | Generalised, <15 min, single episode in 24 h, age 6 moโ5 yr | 1โ2% (similar to general population) | Reassurance; treat underlying fever; no AEDs required; parental education |
| Complex febrile seizure | Focal features, >15 min, or >1 episode in 24 h | 4โ10% | Lower threshold for neuroimaging and EEG; consider neurology referral; no routine AED prophylaxis |
| Febrile status epilepticus | Febrile seizure >30 min (or serial seizures without recovery) | Higher risk of subsequent epilepsy (10โ15%) | Manage as status epilepticus; urgent neurology referral; MRI and EEG recommended |
Infantile Spasms (West Syndrome)
Infantile spasms are a severe epilepsy syndrome presenting between 3 and 12 months of age. The classic triad is (1) clusters of epileptic spasms (jackknife flexion/extension spasms), (2) developmental arrest or regression, and (3) hypsarrhythmia on EEG (chaotic, high-amplitude slow waves with multifocal sharp waves).
Juvenile Myoclonic Epilepsy (JME)
JME is one of the most common genetic generalised epilepsy syndromes, accounting for 5โ10% of all epilepsy. Onset is typically between 12 and 18 years. The hallmark is early-morning myoclonic jerks (especially of the upper limbs), often triggered by sleep deprivation, fatigue, or alcohol. Most patients also experience generalised tonic-clonic seizures (GTCS), and up to 30% have absence seizures. EEG shows bilateral synchronous 4โ6 Hz polyspike-and-wave discharges.
Childhood Absence Epilepsy (CAE)
Childhood absence epilepsy typically presents between ages 4 and 10 years with frequent (up to 100/day) brief staring episodes lasting 5โ30 seconds with abrupt onset and offset, no post-ictal confusion, and often subtle automatisms (eye blinking, lip smacking). Hyperventilation for 3โ5 minutes reliably provokes absence seizures and is a useful bedside test. EEG shows classical 3 Hz generalised spike-and-wave discharges. Prognosis is generally good โ 65โ70% remit by adolescence.
Status Epilepticus โ Emergency Management
Status epilepticus is defined as a seizure lasting โฅ5 minutes, or โฅ2 seizures without return to baseline consciousness. It is a medical emergency with significant morbidity and mortality. Australian treatment follows the Epilepsy Society of Australia / ANZ guidelines.
Syncope & Orthostatic Intolerance
Syncope is a transient loss of consciousness (TLOC) due to global cerebral hypoperfusion, characterised by rapid onset, short duration, and spontaneous complete recovery. It accounts for approximately 1โ3% of emergency department attendances in Australia and becomes increasingly common with age. Syncope must be distinguished from other causes of TLOC (seizure, metabolic, structural) and from non-TLOC mimics (drop attacks, falls, presyncope).
Classification of Syncope
San Francisco Syncope Rule / Canadian Syncope Risk Score
Risk stratification tools help identify high-risk patients requiring admission. The Canadian Syncope Risk Score (CSRS) outperforms older tools and is increasingly used in Australian EDs. High-risk features include: abnormal ECG, history of heart disease, syncope during exertion, syncope while supine, family history of sudden cardiac death, and elevated troponin.
Orthostatic Intolerance โ Spectrum of Disorders
| Condition | Mechanism | Key Features | Management |
|---|---|---|---|
| Orthostatic hypotension | Failure of BP autoregulation on standing | BP drop โฅ20/10 mmHg within 3 min; lightheadedness, visual blurring on standing | Medication review, fluid/salt intake, compression stockings, fludrocortisone or midodrine if severe |
| Postural orthostatic tachycardia syndrome (POTS) | Excessive heart rate increase on standing without BP drop (autonomic dysregulation) | HR increase โฅ30 bpm (โฅ40 in teens) within 10 min of standing, with symptoms (palpitations, lightheadedness, fatigue, brain fog); predominantly young women | Exercise programme (recumbent โ upright), increased fluid (2โ3 L/day) and salt (6โ10 g/day), compression garments; pharmacotherapy: ivabradine, midodrine, low-dose beta-blocker |
| Carotid sinus hypersensitivity | Exaggerated baroreceptor reflex โ bradycardia ยฑ vasodilation | Syncope triggered by head turning, tight collar, shaving; predominantly elderly males; diagnosed by carotid sinus massage (supervised) | Avoid triggers; dual-chamber pacemaker if cardioinhibitory type with recurrent syncope |
Non-Pharmacological Management of Reflex Syncope
Non-Epileptic Events
Non-epileptic events encompass a broad range of paroxysmal episodes that mimic epileptic seizures but do not have an epileptic basis. The most common and clinically significant category is non-epileptic attack disorder (NEAD), also termed functional seizures or dissociative seizures within the functional neurological disorder (FND) spectrum. NEAD accounts for 20โ30% of referrals to Australian epilepsy monitoring units.
Non-Epileptic Attack Disorder (NEAD) / Functional Seizures
NEAD is a condition in which patients experience episodes that resemble epileptic seizures but are not caused by epileptic brain activity. It is a genuine, involuntary neurological condition โ not "faking" or malingering. The mechanism involves altered brain network function (aberrant default mode network activation) rather than cortical hypersynchrony. Psychiatric comorbidities (depression, anxiety, PTSD, dissociation) are common but are not always present and do not fully explain the condition.
| Feature | Favouring NEAD | Favouring Epilepsy |
|---|---|---|
| Eyes | Closed during event; resist forced eye opening | Open; may be deviated |
| Motor pattern | Asynchronous, side-to-side head movement, pelvic thrusting, opisthotonus, waxing/waning | Rhythmic, symmetric tonic-clonic or sustained tonic/postural |
| Duration | >2 min (often 5โ30+ min) | GTCS typically 1โ3 min; focal seizures secondsโ1 min |
| Incontinence | Rare | Common (urinary) |
| Tongue biting | Tip of tongue or absent | Lateral tongue (highly specific) |
| Post-event | Rapid recovery or emotional distress; no true confusion | Confusion, drowsiness, headache; Todd paresis possible |
| EEG during event | Normal background (no epileptiform discharges) | Ictal epileptiform activity |
| Prolactin (10โ20 min post) | Normal | Elevated >2ร baseline (GTCS, complex partial โ but normal does not exclude) |
| Trigger | Emotional stress, interpersonal conflict, fatigue | Sleep deprivation, medication non-adherence, alcohol withdrawal |
Gold Standard: Video-EEG Monitoring
The definitive diagnostic test is video-EEG telemetry capturing a typical event, demonstrating normal EEG during a convulsive episode (confirming NEAD) or ictal epileptiform discharges (confirming epilepsy). This is available at major Australian tertiary epilepsy centres (Royal Melbourne, Royal Prince Alfred, Westmead, Royal Brisbane, Royal Adelaide). Medicare Item 11020 covers prolonged EEG monitoring. Referral should be made via the treating neurologist.
Other Non-Epileptic Paroxysmal Events
| Condition | Typical Age | Key Features | Investigation / Management |
|---|---|---|---|
| Breath-holding spells (cyanotic) | 6 mo โ 5 yr | Triggered by anger/frustration/cry โ apnoea โ cyanosis โ brief LOC (10โ30 sec) ยฑ brief stiffening/myoclonus. Self-resolving. Iron deficiency common comorbidity. | Reassurance; check FBC/ferritin; iron supplementation if deficient; no AEDs needed |
| Pallid breath-holding (reflex anoxic seizures) | 6 mo โ 5 yr | Triggered by pain/startle โ vagal cardiac inhibition โ bradycardia/asystole โ pallor โ LOC โ brief stiffening. Provoked by trivial head bump or surprise. | ECG to exclude long QT; reassure parents; atropine-resistant; usually self-resolving by school age |
| Benign paroxysmal vertigo of childhood | 2 โ 8 yr | Brief (secondsโminutes) episodes of vertigo, ataxia, nystagmus, pallor, ยฑ vomiting. No LOC. Normal neurological examination. Migraine equivalent. | Reassurance; often evolves into migraine in later childhood/adolescence |
| Paroxysmal kinesigenic dyskinesia (PKD) | Childhood โ adolescent | Brief (seconds) episodes of dystonia/choreoathetosis triggered by sudden movement. No LOC. Precipitated by standing, walking, surprise. Excellent response to low-dose carbamazepine. | Low-dose carbamazepine (25โ100 mg PO ODโBD) โ dramatic response confirms diagnosis |
| Benign nocturnal myoclonus (sleep myoclonus) | Infants โ any age | Brief jerking of limbs during drowsiness or NREM sleep. Normal examination, normal EEG. Often alarming to parents. | Reassurance only; no investigation or treatment needed |
| Hyperekplexia (startle disease) | Neonatal โ infantile | Exaggerated startle response to auditory/tactile stimuli โ generalised stiffness. Neonatal hypertonia. GLRA1 gene mutation. Risk of sudden infant death if severe. | Clonazepam 0.01โ0.05 mg/kg/day; genetic testing (GLRA1, GLRB, SLC6A5) |
| Metabolic causes | Any age | Hypoglycaemia, hyponatraemia, hypocalcaemia, hypoxia, uraemia, hepatic encephalopathy โ can all produce paroxysmal neurological events including seizures, altered consciousness, movement disorders | BGL, UEC, calcium, LFTs, ABG โ treat underlying cause |
Treatment of NEAD / Functional Seizures
Special Populations
Driving & Seizure โ Australian Requirements
Australian driving regulations for patients with seizures are governed by the Austroads and National Transport Commission Assessing Fitness to Drive Guidelines (2022 edition). All Australian states and territories adopt these national standards, though notification requirements to transport authorities vary by jurisdiction.
| Scenario | Private Vehicle (Car Licence) | Commercial Vehicle (Truck/Bus/Taxi) |
|---|---|---|
| Single unprovoked seizure (no diagnosis of epilepsy) | No driving for 6 months from the event (or until cause identified and treated) | No driving for 12 months |
| Diagnosed epilepsy โ seizure-free on treatment | Seizure-free for 12 months (or 12 months from commencement/change of AED) | Seizure-free for โฅ10 years (may be individual assessment) |
| AED withdrawal (planned) | No driving for 6 months after last AED dose | No driving for 12 months |
| Seizures occurring only in sleep (nocturnal-only epilepsy) | May drive if seizure-free for 12 months while awake (seizures only during sleep in preceding 12 months) | Individual assessment |
| Reflex anoxic seizures / simple febrile seizures | Generally no restriction (considered benign, predictable triggers) | Individual assessment |
| NEAD / Functional seizures | No driving during active events; restriction may be lifted sooner than epilepsy once diagnosis confirmed โ individual assessment | Individual assessment; generally more conservative |
SUDEP (Sudden Unexpected Death in Epilepsy)
SUDEP affects approximately 1 in 1000 people with epilepsy per year. Risk factors include: uncontrolled GTCS, nocturnal seizures, young adults (20โ45 years), polytherapy with subtherapeutic AED levels, prone sleeping position, and alcohol/substance misuse. The Australian Epilepsy Mortality Register has documented that many SUDEP deaths are associated with medication non-adherence. All patients with epilepsy should be counselled about SUDEP risk, nocturnal seizure precautions (supine avoidance, seizure alarm devices for nocturnal seizures), and the critical importance of medication adherence.
Aboriginal and Torres Strait Islander Health
Aboriginal and Torres Strait Islander Australians experience a significantly higher burden of epilepsy and seizure-related morbidity compared to non-Indigenous Australians. Epilepsy-related hospitalisation rates are 1.5โ3 times higher, and access to specialist neurology services is substantially lower, particularly in remote and very remote communities. Febrile seizures in Indigenous children are more common, linked to higher rates of infectious disease burden including otitis media, respiratory infections, and skin infections. Neurocysticercosis, while rare, must be considered in communities with high rates of taeniasis.
Quick Reference โ First-Line Treatment Summary
๐ References
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