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BACKGROUND Rheumatic heart disease (RHD) is common and remains a major cause of morbidity, particularly in developing countries. Its diagnosis relies on expertise-dependent echocardiographic studies. We evaluated the accuracy of briefly trained examiners in identifying RHD utilizing a hand-carried cardiac ultrasound (HCU) device. METHODS Three medical(More)
INTRODUCTION A health scare is an event characterized by fear of catastrophic consequences with little actual results. Regardless of these negligible results, the health, social and economic impacts of such events may be significant. Health scares are spread throughout four major groups: the media, relevant medical experts, policy makers and the public at(More)
BACKGROUND Research that endeavors to identify the value of electronic health information exchange (HIE) systems to the healthcare industry and, specifically, to clinical decision making is often inconclusive or theory-based. Studies seeking to identify how clinical decisions relate to patterns of actual HIE use, often by analyzing system log files,(More)
STUDY DESIGN Retrospective analysis of billing data, medical records, and hospital cost data. OBJECTIVE To quantify intersurgeon variation for hospital costs of four spine procedures while adjusting for patient comorbidities and demographic factors. SUMMARY OF BACKGROUND DATA Spine care accounts for $90 billion in health care expenditures in the United(More)
BACKGROUND The realization of the potential benefits of health information exchange systems (HIEs) for emergency departments (EDs) depends on the way these systems are actually used. The attributes of volume of information and duration of information processing are important for the study of HIE use patterns in the ED, as cognitive load and time constraints(More)
Jehovah’s witnesses oppose receiving blood transfusions based on religious grounds. This refusal raises complex medical, legal and ethical issues for the treating medical staff. In the past physicians attempted to force patients and children to accept transfusions when deemed medically necessary through the use of court orders. However, in recent years the(More)
BACKGROUND The aging kidney manifests structural, functional as well as pharmacological changes, rendering elderly patients more susceptible to adverse environmental influences on their health, dehydration in particular. HYPOTHESIS Higher temperature is associated with renal function impairment in patients 65 years and older who routinely take thiazide(More)
Insights about patterns of system use are often gained through the analysis of system log files, which record the actual behavior of users. In a clinical context, however, few attempts have been made to typify system use through log file analysis. The present study offers a framework for identifying, describing, and discerning among patterns of use of a(More)