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Abstract: Necrotizing enterocolitis (NEC) is the most common surgical emergency occurring in neonatal intensive care unit (NICU) patients. Among patients with NEC, those that require surgery experience the poorest outcomes and highest mortality. Surgical intervention, while attempting to address the intestinal injury and ongoing mulitfactorial physiologic insults in NEC is associated with its own stresses that may compound the ongoing physiologic derangement. Surgery is thus reserved for those patients with clear indication for intervention such as pneumoperitoneum, confirmed stool or pus in the peritoneal cavity, or worsening clinical status. The purpose of this review is to briefly describe the physiologic stress induced by surgical intervention in the preterm, low birth weight patient with NEC and to provide a contemporary overview of available surgical management options for NEC. The optimal surgical plan employed is strongly influenced by clinical judgment and theoretical benefits in terms of minimizing physiologic stressors while providing temporary and/or definitive treatment in a timely fashion. While the choice of operation has not been shown to have a significant effect on any clinically important outcomes, ongoing investigations continue to study both short and long-term outcomes in patients with NEC. [Copyright &y& Elsevier]

Abstract: NEC remains a major concern for neonatologists, surgeons, and gastroenterologists due to its high morbidity and mortality. These infants often have poor developmental outcome, and contribute to significant economic burden resulting in marked stress in these families. By developing and adhering to strict feeding protocols, encouraging human milk feeding preferably from the infant's mother, use of probiotics, judicious antibiotic use, instituting blood transfusion protocols, the occurrence of NEC may possibly be reduced. However, because of its multifactorial etiology, it cannot be completely eradicated in the NICUs, particularly in the extremely premature infants. Ongoing surveillance of NEC and quality improvement projects may be beneficial. [Copyright &y& Elsevier]

Abstract: Background: The field of necrotizing enterocolitis (NEC) research has been in existence for over 60 years. During the first five decades little progress in NEC prevention and no definitive progress in treatment was achieved. One of the major determinants of this ineffectiveness may have been a global propensity to lump NEC into a single disease entity rather than a spectrum of diseases with a common outcome. The driver of this philosophy was most likely statistical, in that researchers desired large cohorts to optimize statistical power. Additionally, in the past quarter century, our preterm NEC cohorts were (and in some cases still are) contaminated with spontaneous intestinal perforations (SIP). This completely different acquired neonatal intestinal disease (ANID) markedly alters clinical characteristics and outcomes in NEC cohorts and subsets if not addressed. Unfortunately, cohort size has been proven to be less important than data quality when it comes to NEC over this last decade of research. Emerging progress in NEC prevention has been greatly enhanced as a result of dividing well-defined NEC into subsets of disease origin and investigating these entities individually. Review objectives: The purpose of this review is to offer the bedside clinician a concise, up-to-date review of recent advances in NEC reductionism. The reader should understand the history and basic theory behind NEC subsets, their application to NEC prevention, and comprehend that prevention of NEC requires a comprehensive quality improvement strategy that is likely best realized with a zero tolerance approach. Conclusions: We are entering a new era of NEC prevention. NICUs that embrace and achieve effective NEC prevention strategies will rapidly outpace their contemporaries. Because NEC is still the major driver of morbidity and mortality in most NICUs today, those who reject or fail in this pursuit will likely face increasingly severe consequences due to growing requirements for outcomes transparency. [Copyright &y& Elsevier]