Key result
Accurate differentiation of syncope from seizures relies primarily on detailed clinical history over EEG interpretation.
Why the study?
Distinguishing epileptic seizures from syncope and psychogenic attacks remains a major diagnostic challenge in epileptology, complicated by overlapping paroxysmal disorders and evolving definitions of epilepsy.
Clinical history remains the cornerstone for distinguishing epilepsy from syncope and psychogenic attacks.
Supports detailed history-taking to curb misdiagnosis; leaves open need for prospective validation of diagnostic criteria.
he most important diagnostic problem in epileptology is to distinguish epileptic seizures from syncope and from psychogenic attacks.A less common problem is the need to distinguish epilepsy from other paroxysmal disorders with which it may overlap.Improved understanding of ion channel disorders has blurred the definition of epilepsy.1 The diagnosis of episodic altered consciousness rests largely with the clinical history, notwithstanding the remarkable advances in the technology of imaging and neurophysiology.Common reasons for misdiagnosis are: c inadequate or missing history-for example, no witness c clonic movements or incontinence accompanying syncope or psychogenic attacks c undeserved emphasis on a family history of epilepsy or a history of febrile convulsions c overinterpretation of minor electroencephalography (EEG) abnormalities or normal age specific variants.c SYNCOPE Syncope is the most common "non-epileptic" cause of altered consciousness.The two main types are reflex (vasovagal) and orthostatic syncope.Less common but more serious causes include cardiac and central nervous system syncope.
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P. E M Smith (2001) conducted a review in Epilepsy, syncope, and psychogenic attacks. Distinguishing epileptic seizures from syncope and psychogenic attacks relies largely on clinical history, with misdiagnosis often stemming from inadequate history or overinterpretation of EEGs.
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