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ISSN 2063-5346
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THE STUDY OF VISUAL EVOKED POTENTIAL IN INFANTS WITH NEONATAL HYPOGLYCEMIA

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Dr. Lisbeth Varghese, Dr. Shailaja Mane, Dr. Shiji Chilipat, Dr. Nikita Agrawal
» doi: 10.31838/ecb/2023.12.s2.060

Abstract

Background-Hypoglycemia is one of the most common and preventable metabolic disorder affecting neonates. It can lead to irreparable brain injury, repeated seizure activity and severe comorbidities in children. Multiple studies have reported MRI brain findings of parieto-occipital diffusion restriction after symptomatic neonatal hypoglycaemia .In this study it is hypothesised that there would be a correlation between abnormal visual evoked potential and occipital injury after neonatal hypoglycaemia because it is known that occipital injury can occur after neonatal hypoglycaemia. Aim- To determine the changes in visual evoked potential in infants with neonatal hypoglycaemia ,its correlation with MRI brain findings and numerous variables and risk factors of neonatal hypoglycaemia. Methodology-This is a cross-sectional, observational and descriptive study carried out on 50 neonates who had hypoglycaemia and then followed up at 3 months of age for VEP study. Detailed history and various risk factor’s where recorded. MRI brain was also done in these neonates. Data was collected and analysed using SPSS. Association between two categorical variables was analysed using chi square test p<0.05 was taken as statistically significant value at 95 %confidence interval. Results-In this study from a total of 50 neonates, 32 were males and 18 were females. Patients with risk factors of IUGR and sepsis, 27.3% respectively showed VEP with P100 latency prolonged and 13.6% of neonates with perinatal hypoxia was significantly more.In this study. A total 86.3% of the infants who had symptomatic neonatal hypoglycemia showed VEP with P100 latency prolonged. Those infants with MRI brain findings of diffusion restriction in parieto-occipital region showed VEP P100 latency prolonged which is significant with P value of 0.001. Conclusion- In this study, it was observed that neonates who had increased episodes of hypoglycemia showed VEP with P100 latency prolonged than those with normal VEP. The infants with symptomatic hypoglycemia were more among the infants with VEP P100 latency prolonged than asymptomatic neonates .In this study it was found that there is strong correlation of MRI brain findings of occipital lobe injury and abnormal VEPs showing P100 latency prolonged and thus visual cortical dysfunction.

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