alcohol related presentations to the emergency department
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Alcohol related presentations to the emergency departmentTRANSCRIPT
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Alcohol Related Presentations to the EDDR CANDICE HANSON
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Overview
Some ED statistics
Pharmacology of ethanol
Acute Intoxication
Alcohol in trauma
Alcohol Withdrawal
Chronic alcoholism – special problems
Toxic Alcohols
Summary
Quiz
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Some Statistics
3.3 million people world wide die from alcohol related illness p.a. (5.9%)
Over 5% of annual burden of disease as DALYs is due to alcohol
worldwide
25% of deaths in 20-39 yr olds world wide are attributable to ETOH
ETOH is implicated in over 200 different health conditions
1 in 3 presentations to the ED in Australia are related to alcohol
In 2010 estimates 3.5% Australian pop are dependent or use harmfully
Australian men drink 20L per yr, women drink 9L per yr of pure alcohol
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Pharmacology of Ethanol
CNS depressant Potentiates action at GABA receptors and reduces NMDA activity (serotonin, NE)
Absorbed 20% gastric 80% small intestine; metabolised at liver & excreted by kidney. 5% unchanged via lung. Water soluble. Zero order kinetics.
Metabolism
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Acute Intoxication
Signs of acute intoxication
Nystagmus, ataxia, slurred speech, CNS depression, respiratory depression
Treatment – largely supportive. Aspiration risk – nurse on side.
Patient must not be a danger to self or others before ED discharge (e.g. mobilise safely, responsible party will take home), passing urine
No evidence that IVT improves recovery time / hastens metabolism, or BAL, but adds to cost of admission*
If patient is not alcohol dependent, thiamine is not required
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Alcohol in Trauma
Higher suspicion for significant injuries e.g head trauma, c-spine
If history / mechanism is unclear and patient has altered GCS, cannot
assume it is due to alcohol. Lowered index to scan.
If patient not improving or deteriorating during observation – look for
alternate explanation
Intoxication is a consideration in NEXUS c-spine rules, but not Canadian
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Alcohol Withdrawal
Minor withdrawal 6-24 hrs
Tremor, anxiety, N&V, insomnia
Major withdrawal 10-72 hrs
Alcoholic hallucinosis, whole body tremor, vomiting, diaphoresis, HTN
Seizures 6-48 hrs
Brief and generalised, normal EEG, up to 60% not treated for withdrawal, up to 40% will progress to DT
Delirium Tremens 3-10 days
Medical emergency. Global confusion is hallmark; autonomic hyperactivity, risk of cardiovascular collapse, fluid / electrolyte disturbance. Large differential diagnosis.
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Chronic Alcoholism – Special Problems
Alcohol effects every bodily system
Cardiovascular – HTN, alcoholic cardiomyopathy (direct toxic effect)
Haematological – anaemia, thrombocytopaenia, macrocytosis, risk of infections, bleeding risk
Neurological – cerebral atrophy, ?alcohol dementia (loose criteria, in DSM-IV, often overlaps with other forms of dementia, distinct from Korsakoff), head injuries / bleeds, cerebellar atrophy
Endocrine – hyperoestrogenism, hypoglycaemia, pancreatitis
Reproductive– spontaneous abortion, foetal alcohol sy, infertility (men & women), low birth wt
Misc – gout, Dupytreyn’s, myopathy
Psychosocial – financial, marital, violence, risk of sexual assault, employment.
Screening tools e.g. CAGE (cut down, annoyed, guilty, eye opener)
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Thiamine Deficiency
Water soluble essential nutrient – Vitamin B1
Thiamine is phosphorylated in the gut to active coenzyme form, important in ATP production, normal nerve conduction & maintenance of neural membranes
Deficiency results from poor nutrition, decreased conversion to coenzyme, reduced storage in fatty liver, ethanol may inhibit intestinal transport, impaired absorption
Deficiency causes beriberi*
Dry beriberi – polyneuropathy (symmetrical, non-specific myelin degen, usually lower limbs, affects sensory, motor and reflexive arcs. Progressive)
Wet beriberi – affects the heart, leading to high output cardiac failure
Wernicke-Korsakoff Syndrome
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Wernicke-Korsakoff Syndrome
Spectrum of disease
Wernicke typically precedes, reversible if identified early
Ophthalmoplegia (esp. lateral recti), nystagmus, ataxia
Deranged mental function, fluctuates. Confusion, apathy, sleep disturbance, disorientation, listlessness to coma
Korsakoff mostly irreversible
Retrograde (then anterograde) amnesia
Confabulation
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Hepatic Disease
Fatty liver, hepatitis, cirrhosis, HCC
Hepatitis can range from mild with non-specific symptoms through to
jaundice and fulminant hepatic failure. Can also become chronic
Portal HTN – in setting of cirrhosis Ascites, portosystemic shunts,
congestive splenomegaly, hepatic encephalopathy
Hepatic failure – low albumin, low clotting factors, high ammonia,
peripheral stigmata, jaundice. Risk of SBP, hepatorenal &
hepatopulmoary syndromes (high mortality)
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Hepatic Encephalopathy
Distinct from Wernicke’s; occurs in setting of pre-existing liver disease
Liver cannot cope with nitrogenous load (normally metabolises ammonium ammonia
urea, excreted via kidney).
Ammonia XBBB into astrocytes for metabolism, osmotic load cerebral oedema
Clinical features: hepatic flap, confusion, altered cognition / coma
Prevention – minimise protein / nitrogen load e.g. low protein diet, enemas, Aims for 3-4 soft
stools daily. Antibiotics ***
Lactulose – decreases transit time through gut (less absorption) and reduces production of
nitrogenous waste by gut flora. (PO or PR 30mls tds)
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Varices
Oesophageal varcies – lower 1/3 of oesophagus venous drainage via gastric vein vein to portal system. Develop in setting of portal HTN
Treatment of acute bleed
Careful resuscitation (Hb 70-80)
Terlipressin on suspicion of varices (don’t wait for confirmation) 2mg IV (4 hrly up to 3-5 days)
Endoscopy – banding ligation > sclerotherapy within 12 hrs presentation
Antibiotic to prevent gram negative infection – quinolone or 3rd gen ceph
Balloon tamponade with Blakemore tube (pt is intubated). Risk of oesophageal necrosis / rupture http://www.youtube.com/watch?v=imFCMWeWDpU
TIPSS / surgery
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Toxic Alcohols
Methanol: >0.5ml/kg can be lethal
metabolised to formic acid, toxic to ocular tissues; CNS effects; initially elevated osmolar gap, then HAGMA (although normal values don’t exclude significant toxicity)
Chemical thinners, paints, wood spirits, varnishes (not found in methylated spirits in Australia)
Ethylene glycol: >1mg/kg can be lethal
Metabolised to oxalic acid; HAGMA & osmolar gap; rapid CNS depression; formation calcium oxalate crystals in tissues with hypoCa++ & renal failure, cardiorespiratory failure
Solvents, coolants, anti-freeze, brake fluids
* Treatments include ethanol, fomepizole (ADH inhibitor), NaHCO3, haemodialysis.
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Summary
Alcohol related illness is a huge part of the ED workload burden
Management of acute intoxication is largely supportive
Higher risk, higher suspicion in trauma with alcohol on board
Acute withdrawal – manage with benzos and thiamine supplementation
Disease associated with thiamine deficiency – may be reversible
Chronic disease related to alcohol – every bodily system. Emergencies to
consider include liver failure, encephalopathy, bleeding varices
Toxic alcohol ingestions can be potentially lethal if not managed early
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“
”QUIZ
HOORAY!
WINNER TAKES ALL…
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Question 1
Who coined the following phrase?
“Alcohol – the cause and solution to all of life’s problems”
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Question 2 & 3
2) What city was the bar from this TV show set it?
3) The theme song was Where Everybody Knows You Name. What was the name of the bar’s proprietor?
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Question 4
Who is this handsome fella, and what is his contribution to alcohol related medicine?
(Hint: he produced a thesis entitled Alcoholic Paralysis)
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Question 5
This unfortunately named singer famously sang about her refusal to enter rehab.
What was her cause of death?
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Question 6
This well loved Australian icon reportedly died from alcohol related dementia (or HIV according to Derryn Hinch).
Who is he and why was he booted off Australian television in 1975?
(I will give bonus points for an impression of the event)
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Question 7
What are the alcoholic components of a traditional Long Island Iced Tea?
(Hint: there are five)
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Question 8
On September 19, 1975, the Star Hotel in Newcastle was closed down
by police resulting in an infamous riot (ordinary fare in Newie, really).
Which famous Australian band wrote the song ‘Star Hotel’ about this
event?
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Question 9
For Game of Thrones Fans…
What type of drink does Tyrion Lannister like with his breakfast?
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Question 10
Robert Downey Jnr is quoted as saying he has an allergy to alcohol. What does he break out in if he drinks?
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Question 11 & 12
11) Tom Cruise starred in the 1988 movie Cocktail. What style of bartending did he help make famous?
12) Which Beach Boys song was the title track to the film?
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Question 13
You can get it any old how, matter o’ fact, I’ve got it now!
Which famous Aussie beer is this the advertising slogan for?
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Question 14
On which day of the year is St Patrick’s Day celebrated?
(Bonus point if you know why)
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Question 15
What is Barney’s last name?
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Quiz Answers
1 Homer Simpson
2 Boston, Massachusetts
3 Sam Malone
4 Sergei Korsakoff (Russian neuropsychaiatrist)
5 Amy Winehouse, acute alcohol poisoning
6 Graham Kennedy, crow impersonation “Faaarck”
7 Tequila, white rum, vodka, gin,
triple sec
8 Cold Chisel
9 Black beer
10 Handcuffs
11 Flair or flairing
12 Kokomo
13 VB
14 March 17 (he died on this day)
15 Gumble
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The Winner is…THANK YOU!