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Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Neurodiagn+J 2018 ; 58 (2): 91-106 Nephropedia Template TP
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The Identification of Torsades de Pointes via CEEG: A Case Report on a Patient with Physiologically Provoked Nonepileptic Events #MMPMID29923812
Ham AT; Mackey J; Semb G
Neurodiagn J 2018[]; 58 (2): 91-106 PMID29923812show ga
Continuous electroencephalography (CEEG) is chiefly performed at The Medical University of South Carolina (MUSC) for identifying seizures, including its refined use within the epilepsy monitoring unit (EMU) as a differentiator between epileptic and psychogenic etiologies. CEEG also provides critical data that carry implications outside the bounds of both epilepsy and psychogenic events, such as the characterization of unorthodox clinical phenomena that are of physiological (though nonepileptic) origins. Although nonepileptic events (NEEs) are primarily linked with psychogenic phenomena (conversion disorder, malingering) that can mimic epileptic activity, they, like seizures, have diverse semiologies and etiologies. Although it is reasonable for seasoned neurodiagnostics professionals to develop an expectation that NEEs are of psychogenic origin, it is essential to acknowledge that they include etiologies that lay beyond those of psychiatric influence. Such a case is presented in which a 74-year-old female patient who, though initially suspected of having either psychogenic or epileptic seizures, was found to be having frequent episodes of the life-threatening cardiac convulsive syncope torsades de pointes (TdP). The patient had several known risk factors for TdP, including a prolonged QT complex, female gender, advancing age, active medications known to provoke TdP, and electrolyte imbalances (low magnesium and potassium) (Trinkley et al. 2013). TdP was first suspected through the CEEG by a combination of remarkable EEG background changes, recorded video evidence of clinical features, and accompanying single-lead electrocardiogram (ECG) data captured during the events. Upon proper diagnosis, the patient was urgently treated with restorative measures, including electrolyte replenishment, pacemaker implantation, and cessation of provocative medications.