Among a cross-sectional sample (stratified by weight and age after birth) of 226 uncomplicated term newborns from the delivery and postnatal wards of a busy government maternity hospital in Kathmandu, the period prevalence of hypoglycaemia (corrected blood glucose of < 2.6 mmol/l) during the first 50 hours after birth was 38 per cent. (This compares with a reported prevalence rate of 12 per cent from studies of uncomplicated term newborns in the UK.) Hypothermia, young maternal age, low birth weight and early sampling after birth were independent risk factors for hypoglycaemia. Of 31 infants studied longitudinally during the same period, 27 (87 per cent) had at least one blood glucose measurement of < 2.6 mmol/l and 25 (81 per cent) a rectal temperature of < 35.5 degrees C. Fourteen infants (44 per cent) had three or more episodes of hypoglycaemia and seven infants (22 per cent) had three or more episodes of hypothermia. Hypoglycaemia is a common, preventable and neglected problem in many maternity hospitals in developing countries. Simple low-cost measures to reduce the incidence of hypoglycaemia may have a major impact on early infant mortality and neurodevelopmental sequelae of perinatal origin.
To determine the outcome at 1 year of neonatal encephalopathy (NE) and to estimate the possible contribution of birth asphyxia to childhood disability in a low-income South Asian country, a prospective cohort study was undertaken in the principal maternity hospital of Kathmandu, where over 50% of local women give birth. From a total population cohort of 21609 live births, 131 term infants with NE (after exclusion of cases associated with neonatal sepsis, congenital malformations, or primary hypoglycaemia) and 208 term control infants were recruited. Of these, 102 (78%) infants with NE and 106 (51%) control infants were followed-up to 1 year of age. Outcome measures were death or neurodevelopmental impairment, graded as major, minor or none. Of the 131 term infants with NE, 83 were graded with moderate or severe NE according to conventional definition. By 1 year of age, 45 (44%) of the infants with NE had died, 18 (18%) had severe impairments, and two (2%) had minor impairments; four (4%) of the control subjects had died and two (2%) had minor impairments. Most deaths in subjects with NE occurred in the early neonatal period; NE carried no excess risk of death beyond the neonatal period. Of the 18 children with major impairment, 14 (78%) had spastic tetraplegic cerebral palsy and eight (44%) had multiple impairments. Compared with the control group the relative risk of death by 1 year was 5 (95% CI 1.4 to 15) for mild NE, 8 (95% CI 3 to 23) for moderate, and 26 (95% CI 10 to 67) for severe. Twenty-seven of 38 (71%) infants with moderate NE either died or survived with major impairment. An upper estimate for the prevalence of major neuroimpairment at 1 year attributable to birth asphyxia is 1 per 1000 live births in this population.
To determine the outcome at 1 year of neonatal encephalopathy (NE) and to estimate the possible contribution of birth asphyxia to childhood disability in a lowincome South Asian country, a prospective cohort study was undertaken in the principal maternity hospital of Kathmandu, where over 50% of local women give birth. From a total population cohort of 21 609 live births, 131 term infants with NE (after exclusion of cases associated with neonatal sepsis, congenital malformations, or primary hypoglycaemia) and 208 term control infants were recruited. Of these, 102 (78%) infants with NE and 106 (51%) control infants were followed-up to 1 year of age. Outcome measures were death or neurodevelopmental impairment, graded as major, minor or none. Of the 131 term infants with NE, 83 were graded with moderate or severe NE according to conventional definition. By 1 year of age, 45 (44%) of the infants with NE had died, 18 (18%) had severe impairments, and two (2%) had minor impairments; four (4%) of the control subjects had died and two (2%) had minor impairments. Most deaths in subjects with NE occurred in the early neonatal period; NE carried no excess risk of death beyond the neonatal period. Of the 18 children with major impairment, 14 (78%) had spastic tetraplegic cerebral palsy and eight (44%) had multiple impairments. Compared with the control group the relative risk of death by 1 year was 5 (95% CI 1.4 to 15) for mild NE, 8 (95% CI 3 to 23) for moderate, and 26 (95% CI 10 to 67) for severe. Twenty-seven of 38 (71%) infants with moderate NE either died or survived with major impairment. An upper estimate for the prevalence of major neuroimpairment at 1 year attributable to birth asphyxia is 1 per 1000 live births in this population.
We describe a clinical grading system for the assessment of neonatal encephalopathy developed for a large prospective study in Kathmandu. Inter‐observer variability testing of our system on 27 infants showed high agreement (kappa value 0.87). Validity for the prediction of major neuro‐developmental impairment at 1 y of age was tested using a cohort of 57 survivors of encephalopathy, all of whom were assessed using a combination of the Denver Developmental Screening Test and Bailey 2 at 1 y. We compared this with a modification of a scoring system previously validated in Cape Town. Both schemes converted a pretest probability of 31% (the prevalence of major impairment at 1 y of age in this cohort) to a post‐test probability of 55%. This showed only marginal improvement over the traditional risk marker of neurological abnormality at discharge (post‐test probability 51%). At 6 wk of age acquired microcephaly increased the probability of major impairment to 79%. Conclusions: It seems to make little difference both in practical or predictive terms whether one describes the neurological condition of the neonate using a descriptive or scoring system. The important thing is to perform repeated systematic neurological examinations on a daily basis during the neonatal period. Many clinicians will justifiably continue to use the discharge examination as the deciding factor for the need for continued neurodevelopmental surveillance.
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