Alcohol withdrawal Flashcards
GI presentations of alcohol misuse?
- D, V
- ulcers
- varices (haematemesis and/or melena)
- oesophageal erosions
- pancreatitis
- GI cancer
Neurological presentations of alcohol misuse?
- Memory and cognitive impairments.
- Peripheral neuropathy
- Seizures
- Falls
- Wernicke’s encephalopathy and Korsakoff’s syndrome.
CV presentations of alcohol misuse?
• Arrhythmia
• HTN
• Cardiomyopathy
Anaemia
Ix alcohol misuse?
BEDSIDE
• CAGE questionnaire
• further: AUDIT, SADQ
BLOODS
• FBC: macrocytic anaemia (raised MCV)
• LFT: ↑GGT, ↑↑AST (on the “Sauce”), ↑ALT (ratio AST:ALT >2)
IMAGING
• transient elastography (FibroScan) to diagnose cirrhosis in all persistent heavy drinkers
CAGE Qs?
Cut down on your drinking?
Annoyed you by criticizing your drinking?
Guilty about drinking?
Eye-opener to steady your nerves or to get rid of a hangover?
Sx withdrawal? (6-24 hours after last drink)
anxiety
nausea or vomiting
autonomic dysfunction - sweats, tremor
insomnia
seizures
psychiatric disturbance
delirium tremens
alcoholic hallucinosis
Ix withdrawal?
BEDSIDE
• ECG arrhythmias
BLOODS • FBC (macrocytic, thrombocytopenia) • U+E (check for dangerously low K+) • LFTs • VBG (Respiratory alkalosis - DTs, respiratory alkalosis - DTs with hyperventilation, low Cl- metabolic acidosis - V, metabolic acidosis + high anion gap - alcohol ketoacidosis) • blood glucose (Hypoglycaemia) • blood cultures •
IMAGING
• CT head
• CXR
Tx alcohol withdrawal
- maintain fluids and correct electrolytes if needed
- do CIWA score
- give benzo (chlordiazepoxide or diazepam) and thiamine if >10
- antipsychotic if DTs
- manage in community ASAP
relapse prevention?
acamprosate (reduced craving)
naltrexone (reduced pleasure)
disulfiram (causes hangover like symptoms 10 min after)
baseline U&E and LFT before starting
Sx DTs?
3-7 days after last drink.
Delirium, confusion.
Tremor and seizures.
↑HR and ↓BP.
Tx DTs?
- ABC, including fluids.
- Monitor symptoms with CIWA severe is ≥20.
- Benzodiazepines PO for seizures and sedation.
- Chlordiazepoxide or diazepam is 1st line, or oxazepam if there is liver impairment
- Lorazepam IV if seizures are ongoing. Barbiturates and ITU if refractory.
- Nutritional support: thiamine, folate, and correction of any deficiencies in glucose, K+, Mg2+, and PO43-
- Consider IV initially as GI absorption impaired.
Sx Wernicke’s encephalopathy? (triad)
- Ophthalmoplegia: nystagmus, lateral rectus palsy.
- Ataxia with Wide-gait
- Confusion
Sx Korsakoff’s syndrome?
- Anterograde amnesia: can’t form new memories.
- Retrograde amnesia: can’t remember the past.
- Confabulation: false memories – believed to be true – to fill the memory blanks.