The authors reviewed the clinical and laboratory data from cases of hypertrophic pyloric stenosis (HPS) diagnosed at their institution from 2006 to 2008. They assessed and compared presentation of patients with HPS over time at their institution. A total of 118 patients were included in this study. An "olive" was palpated in only 13.6% of cases. This is in contrast to older studies, where more than 50% of the patients were reported to have a palpable "olive" depending on when the study was conducted. In patients from this institution, hypochloremia was present in 23% and alkalosis in 14.4%, which are less frequent than the incidence of these abnormalities in older studies. There was a change in the additional "classical" symptoms, represented by the lower percentage of infants in whom an "olive" was palpated and the lower numbers of patients with severe electrolyte imbalances. The reason for this change appears to be the frequent use of ultrasound.

Background Headache is a common complaint in children at a pediatric emergency department (PED). The primary objective of this analysis is to describe the outcome of patients presenting with headache to the PED and discharged with neurology follow up. The secondary objective is to describe the diagnostic evaluation children with headache underwent in the PED and to evaluate headache characteristics which are more likely associated with serious, life‐threatening conditions. Methods A retrospective chart review of children who were discharged from the PED after evaluation for headache, with a scheduled urgent neurology outpatient clinic follow up at the same institution, over a 3.5‐year period. Results During the study period, we identified 300 children whose admitting diagnosis was headache and they were discharged from the PED with a scheduled follow up. None of these patients had papilledema on fundoscopy performed by an ophthalmologist during the PED visit. Following neurology outpatient clinic visit, 62 (21%) were referred to perform brain magnetic resonance imaging. None of the patients had a diagnosis of brain tumor or any anatomic abnormality that could increase intracranial pressure. Conclusions No immediate life‐threatening cases presented to the follow up neurology clinic for evaluation. A scheduled urgent neurology outpatient clinic follow up in any child with headache who is discharged from the PED, offers a safety net, even when the physical examination including fundoscopy is normal.

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