GastroenterologyTier 2Disease (DEADMAN)

Excessive alcohol consumption

Description

Excessive alcohol consumption produces a dose- and duration-dependent spectrum of harm spanning acute intoxication/withdrawal, chronic organ damage (predominantly liver, but also pancreas, GI tract, cardiovascular and neurological systems), and increased malignancy risk

Alcohol use disorder and excessive consumption remain a leading, largely preventable contributor to chronic disease burden, with risk rising continuously with quantity/frequency rather than showing a clear safe threshold below which risk is zero

Alcoholic liver disease progresses through a recognised sequence: steatosis (reversible with abstinence) -> alcoholic hepatitis (an acute, potentially severe inflammatory episode, itself reversible with abstinence but carrying significant mortality if severe) -> cirrhosis (largely irreversible) - not every heavy drinker progresses through all stages, and individual susceptibility varies (genetic factors, sex - women are more susceptible to alcohol-related liver injury at lower cumulative intake, nutritional status, and pattern of drinking)

Screening tools (e.g. AUDIT, AUDIT-C) identify at-risk drinking more systematically than informal clinical impression, and should be used routinely rather than reserved for patients who volunteer a concern
Laboratory markers (raised GGT, macrocytosis, AST:ALT ratio >2 typically favouring alcohol-related over other liver disease) support but do not replace direct history-taking

Structured brief intervention at the point of screening improves outcomes even in patients not seeking treatment specifically for alcohol use
Alcohol withdrawal management (see toxidromes/withdrawal notes elsewhere) for dependent drinkers stopping intake, including thiamine to prevent Wernicke's encephalopathy
Abstinence is the single most effective intervention for alcoholic liver disease at any stage short of established cirrhosis, and remains beneficial even in cirrhosis by halting further progression
Pharmacotherapy for relapse prevention (naltrexone, acamprosate, disulfiram) alongside psychosocial support for alcohol use disorder specifically

Alcoholic liver disease (steatosis, hepatitis, cirrhosis), acute/chronic pancreatitis, upper GI malignancy (oesophageal, particularly with concurrent smoking), Wernicke-Korsakoff syndrome, cardiomyopathy

Alcohol-related organ damage is frequently reversible or preventable with abstinence at earlier stages (steatosis, alcoholic hepatitis) but becomes largely irreversible once cirrhosis is established - early identification and intervention, well before cirrhosis develops, carries substantially greater benefit than intervention after irreversible damage has occurred

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