To Study the Correlation of Thompson Scoring in Predicting Early Neonatal Outcome in Post Asphyxiated Term Neonates.

INTRODUCTION

Throughout the world each year, an estimated 23% of the 4 million neonatal deaths and 8% of all deaths in <5 years of age are associated with signs of asphyxia at birth.

AIM

To study the role of cord arterial blood gas analysis at birth and serial Thompson score in predicting the early neonatal outcome in post asphyxiated term neonates.

MATERIALS AND METHODS

The study was conducted in Department of Paediatrics, in Neonatal Intensive Care Unit (NICU), Hindu Rao Hospital, New Delhi from May 2014 to February. 2015. This study was a prospective cross-sectional study. During this period, a total of 145 post asphyxiated term neonates born in labour room/obstetric operation theatre were recruited. An informed consent was taken from all the parents. The protocol was approved by the institutional ethical committee. Inclusion criteria were full-term babies with low-Apgar score i.e., 1 min score of ≤ 7 National Neonatal Perinatal Database 2010 (NNPD 2010).

STATISTICAL ANALYSIS

SPSS 17.0 Software has been used for data analysis. The data were expressed in terms of Means, Standard Deviation and Proportion, followed by comparison between groups through chi-square test or Fisher's-exact test. A p-value of less than 0.05 was considered as statistically significant.

RESULTS

The present study was carried out on 145 post asphyxiated full-term babies with low-Apgar score i.e., 1min score of ≤7mild Thompson score on day I,2,3 were 96 (66.2%), 119 (82.06%), 125 (86.20%), moderate Thompson score on day 1,3, 7 were 13 (8.9%), 6 (4.13%), 2 (1.37%) and severe Thompson score on day 1, 3, 7 were 36 (24.8%), 13 (8.96%), 7 (4.82%) respectively. Total 11 patients died out of 145 post asphyxiated full-term babies within 7 days, among 11 patients, 7 died within 3 days. There was clinical improvement among HIE patients as indicated by serial Thompson score done on day 1, 3 and 7. Among 145 patients 62(42.8%) had seizure and 83(57.2%) did not have seizure. Most common type of seizure was subtle seizure in 25 (40.3%) followed by multifocal in 21 (33.9%) and tonic in 16(25.8%).

CONCLUSION

There is statistically significant correlation between morbidity and day 1 Thompson score (p-value 0.024). There is statistically significant correlation between mortality and day 1 Thompson score (p-value 0.001). Thompson score allows a very precise description of infants by assigning a numeric score rather than 'mild', 'moderate' or 'severe'. Inter-rater reliability is very good with a kappa co-efficient of 0.87.