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Hypothermia and Early Neonatal Mortality in Preterm Infants

2013; Elsevier BV; Volume: 164; Issue: 2 Linguagem: Inglês

10.1016/j.jpeds.2013.09.049

1097-6833

Maria Fernanda Branco de Almeida, Ruth Guinsburg, Guilherme Assis Sancho, Izilda Rodrigues Machado Rosa, Zeni Carvalho Lamy, Francisco Eulógio Martinez, Regina Paula Guimarães Vieira Cavalcante da Silva, L. Ferrari, Lígia Maria Suppo de Souza Rugolo, Vânia Olivetti Steffen Abdallah, Rita C. Silveira,

Congenital Diaphragmatic Hernia Studies

Objective To evaluate intervention practices associated with hypothermia at both 5 minutes after birth and at neonatal intensive care unit (NICU) admission and to determine whether hypothermia at NICU admission is associated with early neonatal death in preterm infants. Study design This prospective cohort included 1764 inborn neonates of 22-33 weeks without malformations admitted to 9 university NICUs from August 2010 through April 2012. All centers followed neonatal International Liaison Committee on Resuscitation recommendations for the stabilization and resuscitation in the delivery room (DR). Variables associated with hypothermia (axillary temperature <36.0°C) 5 minutes after birth and at NICU admission, as well as those associated with early death, were analyzed by logistic regression. Results Hypothermia 5 minutes after birth and at NICU admission was noted in 44% and 51%, respectively, with 6% of early neonatal deaths. Adjusted for confounding variables, practices associated with hypothermia at 5 minutes after birth were DR temperature <25°C (OR 2.13, 95% CI 1.67-2.28), maternal temperature at delivery <36.0°C (OR 1.93, 95% CI 1.49-2.51), and use of plastic bag/wrap (OR 0.53, 95% CI 0.40-0.70). The variables associated with hypothermia at NICU admission were DR temperature 25°C, reducing maternal hypothermia prior to delivery, providing plastic bags/wraps and caps for the newly born infants, and using warm resuscitation gases, may decrease hypothermia at NICU admission and improve early neonatal survival. To evaluate intervention practices associated with hypothermia at both 5 minutes after birth and at neonatal intensive care unit (NICU) admission and to determine whether hypothermia at NICU admission is associated with early neonatal death in preterm infants. This prospective cohort included 1764 inborn neonates of 22-33 weeks without malformations admitted to 9 university NICUs from August 2010 through April 2012. All centers followed neonatal International Liaison Committee on Resuscitation recommendations for the stabilization and resuscitation in the delivery room (DR). Variables associated with hypothermia (axillary temperature <36.0°C) 5 minutes after birth and at NICU admission, as well as those associated with early death, were analyzed by logistic regression. Hypothermia 5 minutes after birth and at NICU admission was noted in 44% and 51%, respectively, with 6% of early neonatal deaths. Adjusted for confounding variables, practices associated with hypothermia at 5 minutes after birth were DR temperature <25°C (OR 2.13, 95% CI 1.67-2.28), maternal temperature at delivery <36.0°C (OR 1.93, 95% CI 1.49-2.51), and use of plastic bag/wrap (OR 0.53, 95% CI 0.40-0.70). The variables associated with hypothermia at NICU admission were DR temperature 25°C, reducing maternal hypothermia prior to delivery, providing plastic bags/wraps and caps for the newly born infants, and using warm resuscitation gases, may decrease hypothermia at NICU admission and improve early neonatal survival.