OBJECTIVE: To investigate any possible effect of cooling on seizure burden, the authors quantified the recorded electrographic seizure burden based on multichannel video-EEG recordings in term neonates with hypoxic-ischaemic encephalopathy (HIE) who received cooling and in those who did not. STUDY DESIGN: Retrospective observational study. PATIENTS: Neonates >37 weeks gestation born between 2003 and 2010 in two hospitals. METHODS: Off-line analysis of prolonged continuous multichannel video-EEG recordings was performed independently by two experienced encephalographers. Comparison between the recorded electrographic seizure burden in non-cooled and cooled neonates was assessed. Data were treated as non-parametric and expressed as medians with interquartile ranges (IQR). RESULTS: One hundred and seven neonates with HIE underwent prolonged continuous multichannel EEG monitoring. Thirty-seven neonates had electrographic seizures, of whom 31 had EEG recordings that were suitable for the analysis (16 non-cooled and 15 cooled). Compared with non-cooled neonates, multichannel EEG monitoring commenced at an earlier postnatal age in cooled neonates (6 (3-9) vs 15 (5-20) h)and continued for longer (88 (75-101) vs 55 (41-60) h). Despite this increased opportunity to capture seizures in cooled neonates, the recorded electrographic seizure burden in the cooled group was significantly lower than in the non-cooled group (60 (39-224) vs 203 (141-406) min). Further exploratory analysis showed that the recorded electrographic seizure burden was only significantly reduced in cooled neonates with moderate HIE (49 (26-89) vs 162 (97-262) min). CONCLUSIONS: A decreased seizure burden was seen in neonates with moderate HIE who received cooling. This finding may explain some of the therapeutic benefits of cooling seen in term neonates with moderate HIE.
OBJECTIVE: To investigate any possible effect of cooling on seizure burden, the authors quantified the recorded electrographic seizure burden based on multichannel video-EEG recordings in term neonates with hypoxic-ischaemic encephalopathy (HIE) who received cooling and in those who did not. STUDY DESIGN: Retrospective observational study. PATIENTS: Neonates >37 weeks gestation born between 2003 and 2010 in two hospitals. METHODS: Off-line analysis of prolonged continuous multichannel video-EEG recordings was performed independently by two experienced encephalographers. Comparison between the recorded electrographic seizure burden in non-cooled and cooled neonates was assessed. Data were treated as non-parametric and expressed as medians with interquartile ranges (IQR). RESULTS: One hundred and seven neonates with HIE underwent prolonged continuous multichannel EEG monitoring. Thirty-seven neonates had electrographic seizures, of whom 31 had EEG recordings that were suitable for the analysis (16 non-cooled and 15 cooled). Compared with non-cooled neonates, multichannel EEG monitoring commenced at an earlier postnatal age in cooled neonates (6 (3-9) vs 15 (5-20) h)and continued for longer (88 (75-101) vs 55 (41-60) h). Despite this increased opportunity to capture seizures in cooled neonates, the recorded electrographic seizure burden in the cooled group was significantly lower than in the non-cooled group (60 (39-224) vs 203 (141-406) min). Further exploratory analysis showed that the recorded electrographic seizure burden was only significantly reduced in cooled neonates with moderate HIE (49 (26-89) vs 162 (97-262) min). CONCLUSIONS: A decreased seizure burden was seen in neonates with moderate HIE who received cooling. This finding may explain some of the therapeutic benefits of cooling seen in term neonates with moderate HIE.
Authors: Ronit M Pressler; Geraldine B Boylan; Neil Marlow; Linda S de Vries; Mats Blennow; Catherine Chiron; J Helen Cross; Boubou Hallberg; Lena Hellström-Westas; Vincent Jullien; Barry Mangum; Brendan Murphy; Deirdre Murray; Gerard Pons; Janet Rennie; Mona C Toet; Sarah Zohar Journal: Nat Rev Neurol Date: 2015-11-03 Impact factor: 42.937
Authors: Hannah C Glass; Renée A Shellhaas; Courtney J Wusthoff; Taeun Chang; Nicholas S Abend; Catherine J Chu; M Roberta Cilio; David V Glidden; Sonia L Bonifacio; Shavonne Massey; Tammy N Tsuchida; Faye S Silverstein; Janet S Soul Journal: J Pediatr Date: 2016-04-19 Impact factor: 4.406
Authors: Hannah C Glass; Courtney J Wusthoff; Renée A Shellhaas; Tammy N Tsuchida; Sonia Lomeli Bonifacio; Malaika Cordeiro; Joseph Sullivan; Nicholas S Abend; Taeun Chang Journal: Neurology Date: 2014-03-07 Impact factor: 9.910