Skip to main content

Early single‐channel aEEG/EEG predicts outcome in very preterm infants

Buy Article:

$48.00 plus tax (Refund Policy)

Abstract:

Abstract

Aim:  To characterize early amplitude‐integrated electroencephalogram (aEEG) and single‐channel EEG (aEEG/EEG) in very preterm (VPT) infants for prediction of long‐term outcome.

Patients:  Forty‐nine infants with median (range) gestational age of 25 (22–30) weeks.

Methods:  Amplitude‐integrated electroencephalogram/EEG recorded during the first 72 h and analysed over 0–12, 12–24, 24–48 and 48–72 h, for background pattern, sleep–wake cycling, seizures, interburst intervals (IBI) and interburst percentage (IB%). In total, 2614 h of single‐channel EEG examined for seizures. Survivors were assessed at 2 years corrected age with a neurological examination and Bayley Scales of Infant Development‐II. Poor outcome was defined as death or survival with neurodevelopmental impairment. Good outcome was defined as survival without impairment.

Results:  Thirty infants had good outcome. Poor outcome (n = 19) was associated with depressed aEEG/EEG already during the first 12 h (p = 0.023), and with prolonged IBI and higher IB% at 24 h. Seizures were present in 43% of the infants and associated with intraventricular haemorrhages but not with outcome. Best predictors of poor outcome were burst‐suppression pattern [76% correctly predicted; positive predictive value (PPV) 63%, negative predictive value (NPV) 91%], IBI > 6 sec (74% correctly predicted; PPV 67%, NPV 79%) and IB% > 55% at 24 h age (79% correctly predicted; PPV 72%, NPV 80%). In 35 infants with normal cerebral ultrasound during the first 3 days, outcome was correctly predicted in 82% by IB% (PPV 82%, NPV 83%).

Conclusion:  Long‐term outcome can be predicted by aEEG/EEG with 75–80% accuracy already at 24 postnatal hours in VPT infants, also in infants with no early indication of brain injury.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1651-2227.2012.02677.x

Affiliations: 1: .Division of Pediatrics, Department of Clinical Sciences, Lund University Hospital, Lund, Sweden 2: .Department of Clinical Neurophysiology, Lund University Hospital, Lund, Sweden 3: .Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden

Publication date: July 1, 2012

bpl/apa/2012/00000101/00000007/art00023
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more