Laparotomy Versus Peritoneal Drainage for Necrotizing Enterocolitis or Isolated Intestinal Perforation in Extremely Low Birth Weight Infants: Outcomes Through 18 months Adjusted Age

M.L. Blakely, J.E. Tyson, K.P. Lally, S. Mcdonald, B.J. Stoll, D.K. Stevenson, W.K. Poole, Alan Jobe, L.L. Wright, R.D. Higgins

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    Abstract

    OBJECTIVE. Extremely low birth weight (ELBW; <= 1000 g) infants with necrotizing enterocolitis (NEC) or isolated intestinal perforation (IP) are treated surgically with either initial laparotomy or peritoneal drain placement. The only published data comparing these therapies are from small, retrospective, single-center studies that do not address outcomes beyond nursery discharge. The objective of this study was to conduct a prospective, multicenter, observational study to (1) develop a hypothesis about the relative effect of these 2 therapies on risk-adjusted outcomes through 18 to 22 months in ELBW infants and (2) to obtain data that would be useful in designing and conducting a successful trial of this hypothesis.METHODS. A prospective, cohort study was conducted at 16 clinical centers within the National Institute of Child Health and Human Development Neonatal Research Network. To assist in risk adjustment, the attending pediatric surgeon recorded the preoperative diagnosis and intraoperative diagnosis and identified infants who were considered to be too ill for laparotomy. Predefined measures of short-and longer-term outcome included (1) either predischarge death or prolonged parenteral nutrition (>85 days) after enrollment and (2) either death or neurodevelopmental impairment on a standardized examination at 18 to 22 months' adjusted age.RESULTS. Severe NEC or IP occurred in 156 (5.2%) of 2987 ELBW infants; 80 were treated with initial drainage, and 76 were treated with initial laparotomy. By 18 to 22 months, 78 (50%) had died; 112 (72%) had died or were shown to be impaired. Outcome was worse in the subgroup with NEC. Laparotomy was never performed in 76% (28 of 36) of drain-treated survivors.CONCLUSIONS. Drainage was commonly used, and outcome was poor. Our findings, particularly the risk-adjusted odds ratio favoring laparotomy for death or impairment, indicate the need for a large, multicenter clinical trial to assess the effect of the initial surgical therapy on outcome at >= 18 months.
    Original languageEnglish
    Pages (from-to)e680-e687
    JournalPediatrics
    Volume117
    Issue number4
    DOIs
    Publication statusPublished - 2006

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