| “Early” Neonatal Mortatity in Newborn Nursery |
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Yoon Taik Kim |
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Department of Pediatrics,College of Medicine,Seoul National University Seoul,Kerea |
| 新生兒室에서의 “早期”新生兒 死亡率에 對하여 |
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金潤澤 |
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서울大學校 醫科大學小兒科學敎室 |
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| Abstract |
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In order to survey “early” neonatal mortality in nursery room, the author studied the records
of 140 early neonatal deaths among 5,851 live born infants delivered at Seoul National University
Hospital from January 1968 to December 1972. The results obtained are as follows:
1) There were more deaths in male babies than female every year. The average sex ratio of
male to female was 1. 4 : 1.
2) “Early” neonatal mortalities per 1, 000 live births were 21. 8 in 1968, 24.3 in 1969, 24. 4in
1970, 26. 8 in 1971, and 21. 9 in 1972, and average figure was 23.9.
3) There were decreasing tendency in proportion of spontaneous delivery and increasing tendency
in proportions of vaccum extracted delivery and Ceasarean section.
4) The mortality rate of infants group of spontaneous delivery was greater than infants groups
of vaccum extracted delivery and forcep delivery. The infants group of breech delivery showed
the highest mortality rate.
5) The mortality rate was inversely correlated with birth weight, but increased in babies over 3,500gm.
6) The mortality rate of fullterm neonates (〉37 weeks) was 0.7%, whereas the mortality rate：
of premature neonates (<37 weeks) was 21. 5% which was 30 times higher than fullterm neonates.
7) There was 4. 7% o£ mortality rate in twin births whose birth weights were below 2, 000 gm.
8) The mortality decreased by half successively each day after birth. The ratio of the neonates
who died before 1 day of age and who died after 1 day was 55 : 45.
9) The causes of deaths in order of frequency were: ① undetermined prematurity, ② abnormal
pulmonary ventilation, ③ infections, ④ congenital anomalies, ⑤ birth injuries and ⑥ unknownetiology.
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