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Introduction: Handlebar injuries in children may lead to severe organ lesions despite minimal initial signs and without visible skin bruise. We present our experiences applying a diagnostic and therapeutic algorithm for blunt abdominal trauma, and present the history of two selected cases. Materials and methods: We retrospectively assessed the charts of children below 16 years of age, only who were observed for 24 h or more in our institution due to a handlebar injury between 2004 and 2011. All children were treated according to an institutional algorithm. Results: 40 patients with a median age of 9.5 years were included. Diagnosed lesions were: ruptures of the liver (n = 6), spleen (n = 5), kidney (n = 1), and pancreas (n = 2), small bowel perforation (n = 3), and hernias of the abdominal (n = 2) or thoracic wall (n = 1). Surgical interventions were performed in 8 patients. The outcome was favorable in all the cases. Overall median hospitalization duration was 4.5 days (range 1-19 days). The overall duration between the accident and arrival at our emergency unit was 2.75 h (median, range 1-19 h). 20 children presented directly at our emergency unit after a median of 1.7 h (range 1-19.5 h). 20 children were referred by a family physician or a primary hospital after a median of 4.0 h (range 1-46 h). Conclusion: Handlebar injuries in children resulted in serious trunk lesions in half of the present patient series. The spectrum of injuries in handlebar accidents varies widely, especially injuries to the abdomen can unmask often only in the course. We advocate close observation of patients with thoracic and abdominal handlebar injuries which may be regarded as blunt stab wounds. An institutional algorithm for blunt abdominal trauma management is supportive for emergency care in patients with handlebar injuries. © 2012 Springer-Verlag Berlin Heidelberg. 29 3 269 273

Background: After resection of long-segment Hirschsprung's disease, severe perianal dermatitis (SPAD) may occur because of high stool frequency and elevated concentrations of fecal pancreatic proteases. We investigated prospectively the effect of potato-derived protease inhibitors (PPI) on skin conditions in children with postoperative SPAD. Methods: Four children (aged 12 to 24 months) with therapy-resistant SPAD after transanal endorectal pull-through for long-segment Hirschsprung's disease received topical PPI (1% in 20% zinc ointment) with each diaper-change. Parents noted down a subjective dermatitis score daily. Photo documentation and outpatient visits were made to assess the treatment results. Results: No adverse effects were observed after treatment with PPI. A remarkable improvement of the dermatitis in 3 of the 4 patients as well as improvements in pain and sleep disorders were observed during the PPI-treatment course. Conclusion: The results of the study suggest that PPI may reduce otherwise intractable protease-induced skin irritation in infants. © Children's Hospital, Zhejiang University School of Medicine, China and Springer-Verlag Berlin Heidelberg 2012. 8 2 173 176

Introduction Most underlying diseases for abdominal pain in children are not dangerous. However some require rapid diagnosis and treatment, such as acute ovarian torsion or appendicitis. Since reaching a diagnosis can be difficult, and delayed treatment of potentially dangerous diseases might have significant consequences, exploratory laparoscopy is a diagnostic and therapeutic option for patients who have unclear and potentially hazardous abdominal diseases. Here we describe a case where the anomaly could not be identified using a laparoscopy in an adolescent girl with acute abdomen. Case presentation A 13-year old postmenarchal caucasian female presented with an acute abdomen. Emergency sonography could not exclude ovarian torsion. Accurate diagnosis and treatment were achieved only after an initial laparoscopy followed by a laparotomy and after a magnetic resonance imaging scan a further laparotomy. The underlying disease was hematometra of the right uterine horn in a uterus didelphys in conjunction with an imperforate right cervix. Conclusion This report demonstrates that the usual approach for patients with acute abdominal pain may not be sufficient in emergency situations.