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Evaluating Dizziness
Am J Med 107:468-478, Hoffman,R.M.,et al, 1999
See this aricle in Pubmed

Article Abstract
The most common etiologies for dizziness were peripheral vestibulopathies (35%to 55% of patients) and psychiatric disorders (10% to 25% of patients). Cerebrovascular disease (5%) and brain tumors (<1%) were infrequent. The history and phys ical examination led to a diagnosis in about 75% of patients. At least 10% of patients eluded diagnosis. Symptoms were usually self-limited and not associated with an increased risk of mortality. The diagnostic testing literature, which was often metho dologically flawed, suggested that routine laboratory tests as well as cardiovascular and neurologic testing had a low yield in unselected patients. We could not derive evidence-based guidelines for using specialized vestibular function tests such as ele ctronystagmography. Dizziness is usually a benign, self-limited complaint. When a diagnosis can be made, a careful history and physical examination will usually identify the probably cause. Cardiovascular, neurologic, and laboratory testing should be g uided by the clinical evaluation. Rigorous studies are needed to determine the accuracy and utility of specialized vestibular testing.
 
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