Alcohol Withdrawal Delirium (Delirium Tremens)

Alcohol Withdrawal Delirium, commonly known as Delirium Tremens (DTs), is a severe and life-threatening complication of alcohol withdrawal occurring after sudden reduction or cessation of prolonged heavy alcohol consumption. It represents the most serious manifestation of Alcohol Withdrawal Syndrome.

Symptoms typically begin 48–72 hours after cessation of alcohol intake, peak around day 4–5, and may persist for several days. Early withdrawal symptoms such as tremors, anxiety, insomnia, and autonomic instability may start as early as 6–12 hours after the last drink.

Delirium Tremens carries significant mortality if untreated due to cardiovascular collapse, electrolyte imbalance, infection, or complications such as seizures.

Risk Factors

• Chronic heavy alcohol use (>5–10 years)

• Previous history of delirium tremens

• Prior alcohol withdrawal seizures

• Abrupt cessation of alcohol intake

• Concurrent medical illness or infection

• Electrolyte imbalance (especially hypomagnesemia or hypokalemia)

• Liver disease

• Older age (>40 years)

• Malnutrition

• Head injury

• Dehydration

Signs and Symptoms

Early Alcohol Withdrawal

• Tremors

• Anxiety

• Insomnia

• Nausea and vomiting

• Sweating

• Palpitations

Delirium Tremens Features

• Severe agitation

• Confusion and disorientation

• Fluctuating level of consciousness

• Visual hallucinations (classically vivid or frightening)

• Delusions or paranoia

• Severe autonomic hyperactivity

Autonomic Instability

• Tachycardia

• Hypertension

• Fever (usually low-grade)

• Profuse sweating

Neurological Complications

• Withdrawal tonic–clonic seizures (24–48 hours after cessation)

• Severe tremors

• Altered mental status

Diagnostic Criteria

Diagnosis is primarily clinical, based on history of alcohol cessation and characteristic features:

• Visual hallucinations

• Disorientation

• Fluctuating consciousness

• Agitation

• Tachycardia

• Hypertension

• Low-grade fever

• Generalized tonic–clonic seizures during withdrawal

Important Note:Alternative causes of delirium must always be excluded, especially in atypical presentations.

Differential diagnoses include:

• Sepsis

• Head trauma

• Hypoglycaemia

• Hepatic encephalopathy

• Drug intoxication or withdrawal

• Electrolyte disturbances

• Central nervous system infection

Investigations

Laboratory Tests

• Blood glucose level

• Full blood count

• Electrolytes (Na⁺, K⁺, Mg²⁺)

• Renal function tests

• Liver function tests

• Blood alcohol level

• Coagulation profile

• Serum magnesium and phosphate

Additional Tests

• ECG monitoring

• Chest X-ray (infection suspicion)

• CT brain scan (trauma or focal deficit)

• Toxicology screening when indicated

Management

Alcohol Withdrawal Delirium is a medical emergency requiring hospital management.

Non-Pharmacological Management

Emergency Care

• Secure Airway

• Ensure adequate Breathing

• Maintain Circulation

• Establish IV access

• Administer IV fluids (Dextrose Normal Saline) to prevent hypoglycaemia and hypotension

• Correct dehydration and electrolyte imbalance

• Continuous vital sign monitoring

• Monitor for respiratory depression

• Provide calm, well-lit environment

• Reduce sensory overstimulation

• Physical restraints only if absolutely necessary

Pharmacological Management

First-Line Sedation (Benzodiazepines)

Option 1

• Diazepam 10 mg IV

OR

Option 2

• Lorazepam 2 mg IM or IV

  • Repeat dose if inadequate response

Do not administer faster than 5 mg/minute.

Once stabilization is achieved → switch to oral therapy.

Oral Withdrawal Regimen

• Chlordiazepoxide 20–60 mg, gradually tapered over approximately 1 month

Vitamin Replacement (Essential Treatment)

Alcohol-dependent patients are frequently thiamine deficient.

• Thiamine 300 mg IM daily

OR

• Vitamin B Complex

  • 1 ampoule added to 500 mL of 5% Dextrose IV

⚠ Thiamine should ideally be given before glucose administration to prevent Wernicke encephalopathy.

Supportive Treatment

• Antipyretics for fever

• Electrolyte correction

• Treatment of coexisting infection or medical illness

Complications

• Cardiac arrhythmias

• Aspiration pneumonia

• Status epilepticus

• Wernicke–Korsakoff syndrome

• Rhabdomyolysis

• Acute kidney injury

• Death (if untreated)

Prevention

• Gradual supervised alcohol cessation

• Early identification of alcohol dependence

• Prophylactic benzodiazepines in high-risk patients

• Routine thiamine supplementation

• Nutritional rehabilitation

• Alcohol rehabilitation and counselling programs

• Relapse prevention therapy

Prognosis

With prompt recognition and appropriate benzodiazepine therapy, mortality is low (<5%). Untreated Delirium Tremens may carry mortality rates up to 15–20%.

Patient Education

• Sudden stopping of heavy alcohol intake can be dangerous

• Withdrawal symptoms require medical supervision

• Early hospital treatment prevents seizures and death

• Long-term recovery requires rehabilitation support

• Nutritional and vitamin supplementation are essential