Appendicitis is a common cause of abdominal pain in children. The diagnosis and treatment of the disease have undergone major changes in the past two decades, primarily as a result of the application of an evidence-based approach. Data from several randomized controlled trials, large database studies, and meta-analyses have fundamentally affected patient care. The best diagnostic approach is a standardized clinical pathway with a scoring system and selective imaging. Non-operative management of simple appendicitis is a reasonable option in selected cases, with the caveat that data in children remain limited. A minimally invasive (laparoscopic) appendectomy is the current standard in US and European children's hospitals. This article reviews the current 'state of the art' in the evaluation and management of pediatric appendicitis.

Appendicitis is one of the most common surgical pathologies in children. It can present with right lower quadrant pain. Scoring systems in combination with selective imaging and surgical examination will diagnose most children with appendicitis. Clinical pathways should be used. Most surgical interventions for appendicitis are now almost exclusively laparoscopic, with trials demonstrating better outcomes for children who undergo index hospitalization appendectomies when perforated. Nonoperative management has a role in the treatment of both uncomplicated and complicated appendicitis. This article discusses the workup and management, modes of treatment, and continued areas of controversy in pediatric appendicitis.

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Background Necrotizing enterocolitis (NEC) is the most common surgical emergency in neonates, with an incidence of 0.5–2.4 cases per 1000 live births and a mortality rate between 10% and 50%. Neonates affected by NEC develop a septic injury that is associated with increased risk of neurological impairment due to intraventricular bleeding and chronic lung disease. Intestinal alkaline phosphatase (IAP) is an endogenous protein that has been shown to inactivate the endotoxin lipopolysaccharide (LPS), and has recently been used successfully as an adjunct to treat sepsis in adult patients. We tested the hypothesis that systemic, exogenous IAP will mitigate the inflammatory response as measured by serum levels of proinflammatory cytokines in a rat model of NEC. Methods Newborn Sprague-Dawley rats were divided into groups. Control pups were dam fed. NEC was induced by feeding formula containing LPS and exposure to intermittent hypoxia. NEC pups were given intraperitoneal injections of 4 or 40 glycine units (U) of IAP or placebo twice daily. Intestine and serum was collected for cytokine analysis as well as measurement of alkaline phosphatase activity. Results Systemic IAP administration significantly increased serum alkaline phosphatase activity in a dose- and time-dependent fashion. The proinflammatory cytokines tumor necrosis factor α, interleukin 6, and interleukin 1β were significantly increased in NEC rats versus controls on days 2 and 3. Importantly, treatment with 40 U systemic IAP decreased these proinflammatory cytokines back to near-control levels. Conclusions Systemic IAP administration appears effective in mitigating the systemic inflammatory response associated with NEC, and may prove to be a valuable adjunctive treatment for NEC.

Rectal prolapse is a common and self-limiting condition in infancy and early childhood. Most cases respond to conservative management. Patients younger than 4 years with an associated condition have a better prognosis. Patients older than 4 years require surgery more often than younger children. Multiple operative and procedural approaches to rectal prolapse exist with variable recurrence rates and without a clearly superior operation. These include sclerotherapy, Thiersch's anal cerclage, Ekehorn's rectopexy, laparoscopic suture rectopexy, and posterior sagittal rectopexy.

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