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KMID : 0385920130240010014
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Journal of the Korean Society of Emergency Medicine
2013 Volume.24 No. 1 p.14 ~ p.21
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Relevance of Seizure with Mortality and Neurologic Prognosis of Out of Hospital Cardiopulmonary Arrest (OHCA) Patients Who had Treated with Therapeutic Hypothermia after Return of Spontaneous Circulation
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Lee Hong-Sup
Lee Gun
Kim Jin-Ju
Park Hyeon-Mi
Jang Jae-Ho
Hwang Seong-Youn
Hyun Sung-Youl
Yang Hyuk-Jun
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Abstract
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Purpose: The purpose of this study is to evaluate relevance of postanoxic seizure with prognosis in cases of outof hospital cardiac arrest (OHCA) patients treated with TH and to research the prognostic role of portable electroencephalography (EEG). Methods: A total of 180 OHCA patients arrived during July of 2008 and June of 2011, and 144 patients who had beentreated with therapeutic hypothermia were included in thisstudy. Portable EEG was taken 24 hours after induction of TH and classified by the attending neurologist. As an outcome variable, overall mortality and neurological outcome after six months from discharge were evaluated (Good neurological outcome; Cerebral performance category (CPC) scale 1, 2, Poor neurological outcome; CPC scale 3~5). Results: Among 144 patients, 93 patients (63.9%) were male, and mean age was 51. Eighty two patients (56.9%) survived and almost 30% (43/144) of patients had a good neurological outcome. Sixty five patients (45.1%) had seizures, and, among this group, 19 patients (29.2%) were discharged with a good neurological outcome. No statistical difference was observed between the seizure group and the non-seizure group. Initial rhythm, APACHI II score, and time from basic life support to return of spontaneous circulation (OR, 2.169; 95% CI, 1.158~4.063, OR 1.107; 95% CI 1.064~1.152, OR 1.014; 95% CI 1.006~1.022, respectively) showed statistical importance, however, the seizure group (OR, 0.67, 95% CI, 0.356~1.032, p=0.065) had no statistical relevance with mortality. Grading of EEG by the neurologist showed a positive association with neurological outcomes (p<0.001). Factors associated with good neurological outcome were VF/VT initial rhythm (p=0.005), cardiac cause of arrest (p=0.001), high initial body temperature (p<0.001), low APACHI II score (p=0.010), and shorter time interval between arrest from basic life support (p=0.005). Conclusion: In our study, the seizure group showed no relevance with mortality and prognosis. In hope of achieving a better outcome, careful treatment should be provided in cases of OHCA patients with seizure. Conduct of larger, prospective studies is needed.
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KEYWORD
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Seizures, Prognosis, Out-of-hospital Cardiac Arrest
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