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Evoked potentials predict psychomotor development in neonates with normal MRI after hypothermia for hypoxic-ischemic encephalopathy

Elisa Cainelli Daniele Trevisanuto Francesco Cavallin Renzo Manara Agnese Suppiej 《Clinical neurophysiology》2018,129(6):1300-1306

Objectives

To assess the prognostic role of evoked potentials (EP) in neonates with normal magnetic resonance imaging (MRI) after therapeutic hypothermia (TH) for hypoxic-ischemic encephalopathy (HIE).

Methods

Thirty-five neonates recruited for TH because of HIE, having normal neonatal MRI, performed neonatal somatosensory (SEP), visual (VEP) evoked potentials and electroencephalogram (EEG). The effect of SEP, VEP or EEG abnormalities on Griffith’s developmental scales at 12 and 24?months was measured; positive (PPV) and negative (NPV) predictive value, sensitivity, specificity and accuracy were calculated.

Results

At 24?months, 28% had global psychomotor impairment and 57% had isolated impairments. VEP abnormality was associated with impaired hearing-language score (p?=?0.002) and performance score (p?<?0.0001). VEP achieved best PPV (0.91, 95% C.I. 0.62–0.99) and specificity (0.93, 95% C.I. 0.70–0.99). The combination of neurophysiological tests achieved the best NPV (0.85, 95% C.I. 0.58–0.96), sensitivity (0.90, 95% C.I. 0.70–0.97), overall accuracy (0.83, 95% C.I. 0.67–0.92).

Conclusions

Psychomotor sequelae may occur in survivors of neonatal HIE with normal MRI. VEP is the single best neurophysiological prognostic marker but the combination of neurophysiological tests has a better value.

Significance

When facing the challenge of neurodevelopmental prognosis in infants with normal MRI after TH, EPs are useful prognostic tools, complementary to EEG. 相似文献