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Evaluation of syncope
1Robert Wood Johnson Medical School/Cooper Medical Center, Camden, New Jersey, USA.
American Family Physician
|June 1, 1995
Summary
Fainting, or syncope, is common and often multifactorial. A detailed patient history and physical exam are crucial for diagnosing the cause of fainting, guiding further testing.
Area of Science:
- Cardiology
- Neurology
- Internal Medicine
Background:
- Syncopal episodes are a common clinical presentation.
- The etiology of syncope is frequently multifactorial, necessitating a comprehensive diagnostic approach.
- Understanding the diverse causes of syncope is essential for effective patient management.
Purpose of the Study:
- To outline the essential components of a thorough evaluation for patients experiencing syncope.
- To differentiate potential causes of syncope based on clinical presentation and history.
- To guide the appropriate use of diagnostic testing in the workup of syncope.
Main Methods:
- Detailed patient history including prodromal symptoms and warning signs.
- Complete physical examination, including orthostatic blood pressure measurements.
- Targeted cardiovascular and neurological assessments.
- Judicious use of laboratory and electrocardiographic testing based on clinical findings.
Main Results:
- Vasovagal syncope often presents with prodromal symptoms.
- Sudden onset syncope in cardiac patients may indicate arrhythmia.
- Medications (antihypertensives, antidepressants, digitalis) can precipitate fainting.
- Physical examination findings guide the necessity of further investigations.
Conclusions:
- A thorough history and physical examination are the cornerstones of syncope evaluation.
- Diagnostic testing should be guided by clinical suspicion rather than routine application.
- Newer technologies like loop electrocardiography and tilt table tests have specific indications and should not be universally applied.