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  • Title: Use of postictal respiratory pattern to discriminate between convulsive psychogenic nonepileptic seizures and generalized tonic-clonic seizures.
    Author: Rosemergy I, Frith R, Herath S, Walker E.
    Journal: Epilepsy Behav; 2013 Apr; 27(1):81-4. PubMed ID: 23395834.
    Abstract:
    Distinguishing between generalized tonic-clonic seizures (GTCSs) and convulsive psychogenic nonepileptic seizures (PNESs) can be difficult at the bedside, and this distinction has important implications for patient care. This study used a fully blinded method to examine postictal breathing parameters to identify features distinguishing between generalized tonic-clonic seizures (GTCSs) and convulsive psychogenic nonepileptic seizures (PNESs). Three blinded readers examined edited video recordings of the postictal phase of 72 convulsive seizure episodes recorded from 56 patients. There were 59 GTCS episodes and 13 PNES episodes. Postictal breathing after a PNES episode was more rapid than after a GTCS episode and, thereafter, normalized more rapidly. Postictal breathing after a GTCS episode was more likely to be characterized by stertorous respirations. Postictal breathing after a PNES episode was very unlikely to be characterized by stertorous respirations. Postictal respiratory pattern can assist in discriminating between GTCS and convulsive PNES.
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