Hypothermia During Prehospital Transportation of Neonates

Kim,  Hyang Suk; Jung,  Yoon Seok; Cho,  Joon Pil; Park,  Moon Sung; Pai,  Ki Soo

J Korean Soc Emerg Med > Volume 10(4); 1999 > Article

Original Article

Journal of The Korean Society of Emergency Medicine 1999;10(4): 680-685.

Hypothermia During Prehospital Transportation of Neonates

Hyang Suk Kim, Yoon Seok Jung, Joon Pil Cho, Moon Sung Park, Ki Soo Pai

ABSTRACT

BACKGROUND: Hypothermia is a condition that can lead to serious complications and even to death in newborn. Although the temperature control is essential in neonatal care, it is often neglected during urgent transfer from local private hospitals. The purpose of this study is to evaluate the incidence and clinical outcomes of transfer induced neonatal hypothermia. SUBJECTS AND METHOD: In this retrospective study, subject is limited to transferred outborn babies with age less than 24 hours from June 1996 to May 1999. A total of 3,086 patients were admitted in NICU during the study period and inborn and outborn babies were 1,743(56%) and 1,343(44%) respectively. Among the 1,343 outborn babies, 212 babies were transferred from the private hospital within 24 hours of birth and were eligible for the study. Rectal temperature on arrival, transfer time, birth weight, gestational age, initial arterial gas study, and clinical outcome were compared. Statistical analysis has been done with chi-sqaure test and multiple logistic regression analysis.
RESULTS:
There were 84 cases(39.6%) hypothermia(<36degrees C> among the 212 babies and the rate of hypothermia in transfered babies have not decreased over the study period. There were significantly more hypothermia in lower gestational age (less than 28 weeks) and lower birth weight (less than 2,000gm) caused hypothermia significantly more than normal gestational age or normal range of birth weight. And time interval (less than 12 hour) from birth to arrival at emergency department was also significant factor in hypothermia. The mortality rate was three fold higher in hypothermia than normothermic or hyperthermic babies.
CONCLUSION:
This study shows that hypothermia during neonate transportation is a major cause of neonatal mortality and morbidity in prehopital care. Body temperature control during transport of neonates under 24 hours of age should be emphasized for the better outcome of treatment.