My wife wrote this for her Med degree – she has to write at least one of these a week at the moment, plus study. She’s having it hard at the moment. Anyway, thought some who read this might find it of interest. Be honest with your self – are there three you recognise (read on to see what I mean)…
REFLECTIVE COMMENTARY
Alcohol Dependence Syndrome
The relationship between levels of alcohol and harm is not straightforward as alcohol in any amount is a hepatotoxin. However it is generally agreed that below a certain level the risk of serious damage is sufficiently low to be termed safe. Alcohol consumption is graded in units with 1 unit being equal to 8g of ethanol, the equivalent of 1 small glass of wine, a ½ pint of beer or a standard measure of spirits. ‘Safe’ Limits are accepted as,
- 21 units per week for men
- 14 units per week for women,
provided there is not more than 6 units in one day and there are occasionally drink free days.
Types of Alcohol Misuse:
Dangerous Use of Alcohol
A level of alcohol consumption that significantly increases the risk of harm. Dangerous levels are:
- >50 units a week for men
- >35 units for women.
Levels between safe and dangerous are referred to as hazardous.
Harmful Use of Alcohol
A level of alcohol consumption that has caused actual mental or physical harm.
Problem drinking
Drinking that has caused mental, physical or social harm.
Risk factors for high levels of alcohol consumption
- Genetic factors
-
- Harmful drinking runs in families, although how much of this is due to genetics and how much to the environment is unclear as twin studies have produced conflicting evidence.
- Harmful drinking runs in families, although how much of this is due to genetics and how much to the environment is unclear as twin studies have produced conflicting evidence.
- Age and Sex
-
- Heaviest drinking is seen in young men in their late teens and early twenties, although the rates in women are increasing quicker.
- Heaviest drinking is seen in young men in their late teens and early twenties, although the rates in women are increasing quicker.
- Occupation
-
- Harmful drinking greatest in those professions with easy access to alcohol, e.g. barworkers.
- Women in managerial and professional jobs more likely to drink dangerous amounts of alcohol
- Doctors have high rates of dangerous alcohol consumption.
- Harmful drinking greatest in those professions with easy access to alcohol, e.g. barworkers.
- Living in a society where high population levels of consumption
-
- This is in turn affected by cost and availability
- This is in turn affected by cost and availability
Alcohol Dependence Syndrome:
A person is said to have a Dependence Syndrome if they have three or more of the following six characteristics:
- A strong desire or compulsion to take the substance
- Difficulty in limiting or stopping use
- Development of tolerance as evinced by the need to take increasing quantities of substance to achieve the same effects
- Neglect of other activities and pleasures
- Withdrawal symptoms on when substance intake reduced or stopped.
- Continued use despite evidence of harmful consequences.
The specific features of alcohol dependence include:
- A stereotyped pattern of drinking – that is drinking the same type of drink at regular intervals.
- Relief Drinking – that is drinking to stave off withdrawal symptoms. Often exemplified by drinking on waking. In most cultures early morning drinking is diagnostic of dependency.[i]
- Decreasing Tolerance in the late stages of dependency due to liver damage.
- Reinstatement after abstinence – that is relapsing quickly to old drinking level after period of abstinence.
Alcohol-Related Harm:
Physical Effects
- Neurological
-
- Epilepsy
- Dementia
- Cerebellar degeneration
- Peripheral Neuropathy
- Epilepsy
- Gastrointestinal
-
- Oesophageal varices
- Oesophageal carcinoma
- Gastritis
- Peptic Ulcer Disease
- Acute or Chronic Pancreatitis
- Fatty Liver
- Hepatitis
- Cirrhosis
- Hepatocarcinoma.
- Oesophageal varices
- Others
-
- Cardiomyopathy
- Anaemia
- Myopathy
- Haemochromatosis.
- Cardiomyopathy
Neuropsychiatric Effects
- Wernicke’s Encephalopathy
-
- decreased thiamine intake and impaired absorption and hepatic storage (as a result of alcohol consumption) lead to a deficiency of thiamine. Additionally alcohol induced liver damage impairs the liver’s ability to convert any available thiamine to its active form of thiamine pyrophosphate. Thiamine pyrophosphate is an essential cofactor in glucose metabolism (pentose phosphate pathway and Krebs cycle). It is thought that a deficiency of thiamine pyrophospahte leads to altered cerebral energy metabolism, decreased nerve synaptic transmission and impaired DNA synthesis and ultimately brain damage.
- The clinical features are classically a triad of: impairment of consciousness, ataxia and ophthalmoplegia.
- decreased thiamine intake and impaired absorption and hepatic storage (as a result of alcohol consumption) lead to a deficiency of thiamine. Additionally alcohol induced liver damage impairs the liver’s ability to convert any available thiamine to its active form of thiamine pyrophosphate. Thiamine pyrophosphate is an essential cofactor in glucose metabolism (pentose phosphate pathway and Krebs cycle). It is thought that a deficiency of thiamine pyrophospahte leads to altered cerebral energy metabolism, decreased nerve synaptic transmission and impaired DNA synthesis and ultimately brain damage.
- Amnesic Syndrome (Korsokoff’s Syndrome)
-
- Disorder of recent memory in the absence of generalised intellectual impairment (seen in dementiai) or impairment of consciousness (seen in delirium).
- An organic brain syndrome, caused by permanent brain damage caused thiamine deficiency as above.
- Disorder of recent memory in the absence of generalised intellectual impairment (seen in dementiai) or impairment of consciousness (seen in delirium).
- Alcoholic dementia
-
- Direct toxic effect of alcohol on the brain and the secondary effects of liver disease.
- Direct toxic effect of alcohol on the brain and the secondary effects of liver disease.
Psychiatric Effects
- Anxiety
- Depression
- Deliberate Self Harm
- Sexual Dysfunction
- Alcoholic Hallucinosis
-
- Auditory hallucinations in clear consciousness and delusional misinterpretations.
- Is of variable duration and can be chronic.
- Auditory hallucinations in clear consciousness and delusional misinterpretations.
Effects on Fetus
- Fetal Alcohol Syndrome
-
- Low intelligence
- Facial abnormality
- Low weight
- Overactivity
- Advise pregnant women to abstain from alcohol!
- Low intelligence
Social Effects
- Crime
- Road Traffic Accidents
- Effects on work – absences
- Unemployment
- Neglect of children
- Family Violence.
Alcohol-Withdrawal Syndrome
In dependence the features of withdrawal characteristically appear on waking with the fall in blood alcohol level. The clinical features of withdrawal include:
- Tremulousness
- Agitation
- Sweating
- Nausea and retching
- Misperceptions and hallucinations
- Epileptic Seizures
Delirium Tremens is a severe form of withdrawal syndrome with the following clinical features;
- Impairment of recent memory
- Disorientation
- Clouding of consciousness
- Gross tremor of hands
- Autonomic Disturbance
- Hallucinations
- Dehydration and electrolyte disturbance
Delirium Tremens usually lasts 3-4days. A long-acting benzodiazepine (diazepam or chlordiazepoxide) are first line pharmacological treatment in delirium tremens.
Treatment of Alcohol Dependence
- Review with patient:
-
- Extent of alcohol consumption
- Evidence of dependence
- Consequences of harmful level of alcohol consumption.
- Extent of alcohol consumption
- Withdraw alcohol
-
- Alcohol is stopped without gradual reduction and long-acting benzodiazepines are used to prevent seizures or delirium tremens and then they are reduced gradually.
- Alcohol is stopped without gradual reduction and long-acting benzodiazepines are used to prevent seizures or delirium tremens and then they are reduced gradually.
- Resolve interpersonal problems
- Establishing new interests
- Maintain abstinence
-
- Disulfiram (antabuse 100-200mg/day).
-
- Acetaldehyde dehydrogenase antagonist.
- Leads to a build up of acetaldehyde which produces a number of unpleasant effects including, headache and flushing.
- Acetaldehyde dehydrogenase antagonist.
- Individual counselling.
- Self-help groups e.g. AA
- Disulfiram (antabuse 100-200mg/day).
REFERENCES









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