Walsh Michele C, Morris Brenda H, Wrage Lisa A, Vohr Betty R, Poole W Kenneth, Tyson Jon E, Wright Linda L, Ehrenkranz Richard A, Stoll Barbara J, Fanaroff Avroy A
Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA.
J Pediatr. 2005 Jun;146(6):798-804. doi: 10.1016/j.jpeds.2005.01.047.
To compare duration of ventilation to mortality and adverse neurodevelopmental outcomes among extremely low birth weight (ELBW; 501-1000 g) infants.
Retrospective analysis of prospectively collected data from 5364 infants with a birthweight of 501 to 1000 g born at National Institute of Child Health and Human Development (NICHD) Neonatal Research Network centers from 1995 to 1998. The main outcome measures were: survival, duration of mechanical ventilation, and neurodevelopmental outcome.
Overall survival was 71%. The median duration of ventilation for survivors was 23 days; 75% were free of mechanical ventilation by 39 days, and 7% were ventilated for > or = 60 days. Of those ventilated for > or = 60 days, 24% survived without impairment. Of those ventilated for > or = 90 days, only 7% survived without impairment. Of those ventilated > or = 120 days, all survivors were impaired.
The prognosis for ELBW with protracted ventilation remains grim. The cohort who remain intubated have diminished survival and high rates of impairment. Parents of these infants should be informed of changes in prognosis as the time of ventilation increases.
比较极低出生体重(ELBW;501 - 1000克)婴儿的通气持续时间与死亡率及不良神经发育结局之间的关系。
对1995年至1998年在美国国立儿童健康与人类发展研究所(NICHD)新生儿研究网络中心出生的5364名出生体重在501至1000克之间的婴儿的前瞻性收集数据进行回顾性分析。主要结局指标为:生存率、机械通气持续时间和神经发育结局。
总体生存率为71%。存活者的通气中位数持续时间为23天;75%的婴儿在39天内无需机械通气,7%的婴儿通气时间≥60天。在通气时间≥60天的婴儿中,24%存活且无功能障碍。在通气时间≥90天的婴儿中,只有7%存活且无功能障碍。在通气时间≥120天的婴儿中,所有存活者均有功能障碍。
长时间通气的极低出生体重儿预后仍然严峻。持续插管的婴儿队列生存率降低且功能障碍发生率高。随着通气时间增加,应告知这些婴儿的父母预后的变化。