Monday, March 11, 2019

Predictive factors and prognostic value for status epilepticus in newborns

Gokce-Samar Z, Ostrowsky-Coste K, Gauthier-Morel D, Keo-Kosal P, De Regnauld De Bellescize J, Montavont A, Panagiotakaki E, Claris O, Arzimanoglou A. Predictive factors and prognostic value for status epilepticus in newborns. Eur J Paediatr Neurol. 2019 Jan 29. pii: S1090-3798(18)30274-5. doi:10.1016/j.ejpn.2019.01.006. [Epub ahead of print]


To evaluate the predictive factors for status epilepticus (SE) in neonates and prognostic factors for patient outcomes in newborns suffering either isolated seizures or SE.

A retrospective single-center study from January 2010 to December 2014, included 91 newborns who had neonatal seizures. Among them, 50 newborns experienced SE and 41 newborns presented isolated seizures only. SE was defined as a single seizure lasting more than 15 min or repeated seizures without return to preictal neurological baseline for more than 15 min. Isolated seizures were defined as one single seizure lasting less than 15 min or more seizures with complete recovery of consciousness between seizures. Perinatal and electroclinical data were recorded. Outcomes were evaluated at one year follow up.

In multivariate analysis, the factors identified as being predictive of SE were a severely abnormal initial neurological examination (OR 15.7, 95% CI (3.8-109) p = 0.00075) and hypoglycaemia (OR 6.8, 95% CI (1.5-49.2) p = 0.024), found mostly in newborns with hypoxic-ischemic encephalopathy. When studying our global cohort, SE was found to be a negative prognostic factor for outcome only in univariate analysis. In newborns with isolated seizures only, the postictal clinical examination results were the only independent prognostic factor found, normal results being associated with a more favorable evolution (OR 48.9, 95% CI (7.16-571) p = 0.0003).

Two independent risk factors for SE in newborns have been identified: a severely abnormal initial neurological examination and hypoglycaemia. In newborns with isolated seizures, the only positive prognostic factor was found to be a normal postictal clinical examination.

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