What causes loss of consciousness

what causes loss of consciousness

Scope

  • To define the appropriate pathways for the initial assessment of patients with transient loss of consciousness (TLoC), and so to derive the correct underlying diagnosis quickly, efficiently, and cost-effectively, and tailor the management plan to suit their true diagnosis
  • To provide advice on the information needs of people who have TLoC

Target Population

External Web Site Policy

Adults and young people (aged 16 and older) who have experienced transient loss of consciousness (TLoC)

Interventions and Practices Considered

Diagnosis/Assessment

  1. Initial assessment
    • Gather and record information about the event (from all accounts)
    • Determine whether the person had transient loss of consciousness (TLoC)
    • Obtain patient history and perform physical examination
    • Conduct diagnostic examinations
      • 12-lead electrocardiogram (ECG)
      • If there is suspicion of an underlying problem causing TLoC, or additional to TLoC, carry out relevant

        testing (e.g. blood glucose, electroencephalogram [EEG])

    • If TLoC is secondary to a condition that requires immediate action (i.e. "red flags"), determine appropriate management and urgency of treatment
    • If no further immediate management is required, diagnose uncomplicated faint or situational syncope
    • Refer to a specialist for further assessment if applicable
  2. Specialist cardiovascular assessment and diagnosis
    • Assessment and assignment to type of syncope
    • Diagnostic tests for different types of syncope (i.e. exercise testing, ambulatory ECG, tilt test)
  3. If cause of TLoC remains uncertain
    • Consider psychogenic nonepileptic seizures (PNES) or psychogenic pseudosyncope
    • Advise people who have experienced TLoC to try to record any future events
    • Consider other causes if, after further assessment, the cause of TLoC remains uncertain or the person has not responded to treatment

Source: www.guideline.gov

Category: Forex

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