Jeff N Barnes

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INTRODUCTION The purpose of this study was to characterize epidemiologic trends and cost implications of hospital readmission after treatment of pediatric appendicitis. METHODS We conducted a 5-year retrospective cohort analysis of 30-day readmission rates for 52,054 patients admitted with appendicitis at 38 children's hospitals participating in the(More)
OBJECTIVE To characterize the scope and magnitude of practice variation associated with the diagnosis and treatment of appendicitis at freestanding children's hospitals. BACKGROUND Variation in care has been associated with poor outcomes and is believed to be a key driver of excess health care spending. METHODS Retrospective cohort study of 13,328(More)
The pharmacokinetics of a single oral dose of dihydrocodeine were studied in nine patients with chronic renal failure treated by haemodialysis and nine subjects with normal renal function. In the patients the mean peak plasma dihydrocodeine concentration occurred later and the area under the curve was greater than in the normal subjects. Furthermore, the(More)
1. Eight patients with essential hypertension were challenged with an infusion of 32 mmol of potassium chloride in saline before and after control of their blood pressure by the angiotensin converting-enzyme (ACE) inhibitor enalapril. 2. The potassium infusion was associated with similar increases in plasma aldosterone before and during enalapril treatment,(More)
OBJECTIVES To identify risk factors associated with readmission for children treated with appendicitis, and to characterize variation in risk-adjusted readmission rates between children's hospitals. BACKGROUND DATA Hospital readmission has been increasingly targeted as a marker for quality of care, yet little is known regarding risk factors associated(More)
OBJECTIVE To describe the incidence, characteristics, and outcomes of hospitalized children and young adults with aortic dissection (AD). DESIGN Retrospective review. SETTING The Pediatric Health Information System database, a multiinstitutional administrative database. PATIENTS All index cases of patients <30 years old hospitalized with AD between(More)
PURPOSE To characterize variation in practice patterns and resource utilization associated with the management of intussusception at Children's Hospitals. METHODS A retrospective cohort study (1/1/09-6/30/11) of 27 Children's Hospitals participating in the Pediatric Health Information System database was performed. Hospitals were compared with regard to(More)
Simple tests of verbal reasoning and mental arithmetic, taken under mildly stressful conditions, have been shown to give a reproducible test of intellectual function within groups of normal subjects. Using these tests, in two separate examinations, a double-blind cross-over study was performed on 35 medical students to assess the effects of acute(More)