David W. Warren

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STUDY OBJECTIVES To compare infusion rates from various intraosseous sites (tibial, medial malleolar, distal femoral, and humeral) and at a peripheral IV site under gravity and pressure flow in normovolemic and hypovolemic states. DESIGN AND SETTING A piglet model was used to assess rates of infusion under varying conditions in a university hospital(More)
BACKGROUND Musculoskeletal (MSK) ankle injuries cause significant morbidity in ambulatory pediatric populations. No optimal pharmacotherapy is available. OBJECTIVE To conduct a randomized, double-blind trial to compare 2 drug therapies for soft tissue injury of the ankle. METHODS Patients (N = 77, aged 8-14 y, 61% male) with ankle injuries presenting to(More)
Pediatric stroke is a rare disorder with a paucity of evidence-based treatment options, and can result in significant morbidity and mortality. In contrast to adult acute ischemic stroke, where the use of recombinant tissue plasminogen activator (rt-PA) has been studied in several large, randomized clinical trials, no high-level evidence exists for the use(More)
The role of the autopsy in verifying clinical diagnosis and as a quality assurance tool in pediatric emergency medicine has not been studied. We reviewed the charts of all children who died soon after arriving at to the pediatric emergency department between October 1985 and December 1989. Opinions as to clinical diagnoses and cause of death were obtained(More)
We prospectively studied a group of patients with mild head injury discharged for home observation to determine whether written instructions assisted in recall of signs and symptoms, increased patient satisfaction, or resulted in any additional benefit over verbal explanations alone. We also evaluated the level of comprehension required to understand the(More)
OBJECTIVES To examine: a) the rate and extent of delivery of radioactive tracers to the central circulation from the tibial, medial malleolar, distal femoral, and humeral intraosseous sites, as well as from a peripheral intravenous site; and b) the end-tidal CO2 response to injected sodium bicarbonate at these sites. DESIGN Prospective, descriptive study.(More)
PURPOSE To assess agreement between trained radiographers and consultant radiologists compared with an index radiologist when reporting on magnetic resonance imaging (MRI) examinations of the knee and lumbar spine and to examine the subsequent effect of discordant reports on patient management and outcome. METHODS At York Hospital two MR radiographers,(More)
OBJECTIVE We sought to determine the frequency with which fellows in accredited Canadian pediatric emergency medicine (PEM) fellowships perform specific procedures, the level of confidence fellows have in their abilities and whether there are differences in self-perceived success between first- and second-year fellows. METHODS A national survey was(More)