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Related Experiment Videos

Diagnostic evaluation of syncope.

W N Kapoor1

  • 1Department of Medicine, University of Pittsburgh, Pennsylvania.

The American Journal of Medicine
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

Syncope evaluation remains challenging, with diagnoses missed in many patients. Selective, goal-directed testing strategies may improve diagnostic yield for this common condition.

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Area of Science:

  • Cardiology
  • Neurology
  • Internal Medicine

Background:

  • Syncope is a frequent clinical presentation with a broad differential diagnosis.
  • A significant percentage of syncope cases remain undiagnosed despite extensive testing.
  • History and physical examination are crucial but often insufficient for definitive diagnosis.

Purpose of the Study:

  • To review current diagnostic strategies for syncope.
  • To highlight the limitations of conventional diagnostic tests.
  • To propose a selective and goal-directed approach for syncope evaluation.

Main Methods:

  • Review of existing literature on syncope diagnosis.
  • Analysis of the diagnostic yield of various investigations including ECG, cardiac monitoring, stress tests, and electrophysiologic studies.

Related Experiment Videos

  • Evaluation of the role of history, physical examination, upright tilt testing, and psychiatric assessment.

    • Main Results:

    • History and physical exam identify a cause in 49-85% of diagnosed cases.
    • Routine blood tests are rarely helpful.
    • Specific tests like ECG and cardiac monitoring yield positive results in a small percentage of patients, often without clear symptomatic correlation.

    Conclusions:

    • Syncope diagnosis is often challenging, with a substantial proportion of patients remaining undiagnosed.
    • Conventional diagnostic tests have limitations in establishing the cause of syncope.
    • Selective and goal-directed diagnostic testing strategies may enhance the evaluation of patients with syncope.