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Screening Exams (screening + exam)
Selected AbstractsRoutine Screening for Asymptomatic Abdominal Aortic Aneurysm in High-risk Patients Is Not Recommended in Emergency Departments That Are Frequently CrowdedACADEMIC EMERGENCY MEDICINE, Issue 11 2009Beatrice Hoffmann MD Abstract Objectives:, The objectives were to examine the feasibility of offering abdominal aortic aneurysm (AAA) screening to consecutive, asymptomatic high-risk patients in a busy emergency department (ED) and to compare the prevalence of undetected AAA among ED patients to the prevalence among similarly aged men from the general population. Methods:, A prospective cohort study was conducted at an academic community ED with an annual census of 58,000 patients. Dedicated study coordinators attempted to approach all consecutive male ED patients >50 years who presented in June,August 2007 during hours of high patient volume. To be eligible, older males had to have a smoking history or a family history of AAA. Patients were excluded if they presented with AAA symptoms, had a previous history of AAA screening or repair, had hemodynamic instability, or had an altered mental status. Study coordinators completed a brief interview with all enrolled subjects to obtain demographic and health information. A credentialed ED provider performed the ultrasound (US) screening exam and documented all findings. The US director reviewed representative images of the sonographic exam for correct visualization and measurement during quality assurance. The ED sonographers also completed a survey regarding their attitudes toward AAA screening in the ED. The primary study outcomes were the feasibility of AAA screening in the ED (screening rate, enrollment rate, US success rate, and providers' opinions) and the prevalence of AAA (aortic diameter of ,3.0 cm) in the study sample. Results:, During the 12-week study period, the study coordinators successfully approached 96% (700/729) of males > 50 years who were in the ED during study enrollment hours. Of those approached, 278 were eligible (40%), 25% were ineligible, 20% were not at high risk, and for 15% we could not determine risk factor status because of altered mental status. Of the 278 eligible, 196 (70%) underwent an US exam; 10% were not scanned because the providers were too busy, and 20% declined participation. Of those scanned, the ED sonographer was able to completely visualize and correctly measure the abdominal aortas of 71% of subjects. The prevalence rate of AAA in the study sample was 5.7% (95% confidence interval [CI] = 1.9% to 9.6%), similar to reported rates of 6 or 7% in other studies. More than half of the ED sonographers reported that US screening for AAA improved the quality of ED care (58%) and patient satisfaction (63%). However, 47% reported that AAA screening reduced ED efficiency, and 74% felt that the ED was not an appropriate setting for routine AAA screening. Conclusions:, Routine screening for asymptomatic AAA required substantial ED resources for a relatively low success rate of completed screens. The prevalence rate of AAA in our ED sample was not significantly different than prevalence estimates obtained from older men in the general population. ED sonographers reported benefits of screening in terms of improving the quality of emergency care and patient satisfaction, but also reported that it reduced operational efficiency. For EDs that have problems with crowding, we do not recommend implementing a routine screening program for AAA, even among high-risk patients. [source] Prevalence and Etiology of Hearing Loss in Rural Nicaraguan ChildrenTHE LARYNGOSCOPE, Issue 3 2007James E. Saunders MD Abstract Objective/Hypothesis: The prevalence and causes of pediatric hearing loss (HL) in the developing world are largely unknown. Infectious sequelae, ototoxic medications, and genetic causes may play a larger role in developing countries. In addition, the significance of GJB2 mutation gene in poorly developed areas remains unclear. The intent of this study is to investigate the prevalence and etiology of HL in children living in a remote, impoverished region of northern Nicaragua. Study Design: Cross-sectional study. Methods: Clinical data from two sources were analyzed: data from screening examinations performed in rural schools in the Department of Jinotega, Nicaragua (group A) and pediatric HL patients seen at the Otolaryngology and Audiology Clinic in Jinotega, Nicaragua (group B). Patients with congenital HL were offered a genetic test for GJB2 mutations. Comparisons were made using parametric (analysis of variance) and nonparametric (Kruskal-Wallis) tests. Results: School-based screening examinations (group A) revealed a high prevalence of significant HL (>30 dB) of 18%. The majority of these children had normal otoscopic examinations (58%). A family history of HL was seen in 24% of children who failed screening exams. Positive family history was more common in patients with HL (P < .01) and in specific schools (P < .05). Clinic-based evaluations (group B) reveal a population with predominantly severe-profound HL. Physical dysmorphism was common, yet identifiable syndromic HL was rare. Although familial HL was common (33%), there were no pathologic GJB2 mutations. Other common risk factors in this population were maternal infection during pregnancy, neonatal distress, low birth weight or prematurity, and gentamicin exposure. Conclusions: HL in this rural, third world environment is more prevalent, and the etiologies responsible in this study group are different from those encountered in industrialized nations. Poor perinatal health care, infectious causes, gentamicin exposure, and hereditary HL are potentially preventable causes that play a major role in this population. [source] Geriatric Emergency Medicine with Integrated Simulation CurriculumACADEMIC EMERGENCY MEDICINE, Issue 2009Chris Doty Our initiative is a replicable model curriculum that teaches emergency geriatric care principles utilizing didactics and immersive simulation. Simulated scenarios encompass principles specific to geriatric care. Major curricular principles include: 1) respect for patients' autonomy, 2) accommodating patients' physical and cognitive limitations, 3) appropriate resource utilization, and 4) accurate symptom recognition and clinical decision-making. These four basic principles are incorporated throughout the curriculum and specifically during three simulated scenarios: 1) a patient with respiratory distress in the setting of end-stage cancer and end-of-life teaches topics pertaining to living wills, health care proxies and DNR orders; 2) a fallen patient requiring a trauma evaluation and safe discharge teaches resource utilization, complex evaluation of home environment, social support principles, access to medical care concepts, and utilization of institutional social services; 3) a patient with altered mental status caused by polypharmacy and sepsis teaches geriatric diagnostic and intervention challenges. Faculty teach specific clinical tactics such as minimizing distractions, frequent reorientation, minimal use of urinary catheters and "tethering" devices, prompt triage and medical screening exams, and coordinating disposition with family, nursing, and clerical staff. The curriculum also includes large classroom didactics incorporating active learning via live streamed simulation into the resident conference room. We developed an internet-based tool to manage the curriculum and track resident participation. The tool stores and sends educational handouts via email and displays digital media (e.g., radiographs, EKGs) on screen during lectures and simulation sessions. Learning objectives are measured and reinforced with pre- and post-curriculum test questions. [source] MLE and Bayesian Inference of Age-Dependent Sensitivity and Transition Probability in Periodic ScreeningBIOMETRICS, Issue 4 2005Dongfeng Wu Summary This article extends previous probability models for periodic breast cancer screening examinations. The specific aim is to provide statistical inference for age dependence of sensitivity and the transition probability from the disease free to the preclinical state. The setting is a periodic screening program in which a cohort of initially asymptomatic women undergo a sequence of breast cancer screening exams. We use age as a covariate in the estimation of screening sensitivity and the transition probability simultaneously, both from a frequentist point of view and within a Bayesian framework. We apply our method to the Health Insurance Plan of Greater New York study of female breast cancer and give age-dependent sensitivity and transition probability density estimates. The inferential methodology we develop is also applicable when analyzing studies of modalities for early detection of other types of progressive chronic diseases. [source] | ||||||||||