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At least 1,225 records · Page 68Linked to original sources
PubMed1992

Nurse practitioners in accident and emergency departments: what do they do?

OBJECTIVE: To determine the distribution and scope of nurse practitioner schemes in accident and emergency departments in England and Wales; to describe the caseloads of doctors and nurse practitioners on two representative days; and to estimate the number of patients managed by nurse practitioners in the year to 31 March 1991. DESIGN: A postal survey of accident and emergency departments and a content analysis of case notes of new patients attending a representative sample of accident and emergency departments on two days. SETTING: All accident and emergency departments in England and Wales. PARTICIPANTS SURVEY: 560 nurses in charge of accident and emergency departments. Census: case notes of 5814 patients in 37 accident and emergency departments. MAIN OUTCOME MEASURES SURVEY: number of accident and emergency departments with nurse practitioner schemes. Census: demographic and clinical characteristics of new patients attending and whether nurse practitioner or doctor made diagnoses and ordered investigations, treatments, referrals, discharges. RESULTS: 513 replies (92%) from 465 surveyed functioning accident and emergency departments and 48 departments recently closed. 27 (6%) departments used designated nurse practitioners and 159 (34%) "unofficial" nurse practitioners. Only 530 (9%) of the 5814 patients in the census were managed entirely or mainly by nurse practitioners, with higher proportions in ophthalmic departments (nearly 30%) and minor casualty departments (over 40%) than in major departments (3%). Most patients managed by nurse practitioners (86%) had minor trauma. In the year ending 31 March 1991 an estimated 390,000 (95% confidence interval 260,000 to 520,000) patients out of a total of 12.5 million (3.1%, 2.1% to 4.1%) were clinically managed by a nurse practitioner. CONCLUSIONS: Designated nurse practitioner schemes are rare. The volume and range of nurse practitioner work in major general accident and emergency departments is small compared with those in specialised and minor accident and emergency departments.

Emergencies↗
PubMed2006

Contrast enhancement of central nervous system lesions: multicenter intraindividual crossover comparative study of two MR contrast agents.

PURPOSE: To prospectively compare gadobenate dimeglumine with gadopentetate dimeglumine (0.1 mmol per kilogram body weight) for enhanced magnetic resonance (MR) imaging of central nervous system (CNS) lesions. MATERIALS AND METHODS: This study was HIPAA-compliant at U.S. centers and was conducted at all centers according to the Good Clinical Practice standard. Institutional review board and regulatory approval were granted; written informed consent was obtained. Seventy-nine men and 78 women (mean age, 50.5 years +/- 14.4 [standard deviation]) were randomized to group A (n = 78) or B (n = 79). Patients underwent two temporally separated 1.5-T MR imaging examinations. In randomized order, gadobenate followed by gadopentetate was administered in group A; order of administration was reversed in group B. Contrast agent administration (volume, speed of injection), imaging parameters before and after injection, and time between injections and postinjection acquisitions were identical for both examinations. Three blinded neuroradiologists evaluated images by using objective image interpretation criteria for diagnostic information end points (lesion border delineation, definition of disease extent, visualization of internal morphologic features of the lesion, enhancement of the lesion) and quantitative parameters (percentage of lesion enhancement, contrast-to-noise ratio [CNR]). Overall diagnostic preference in terms of lesion conspicuity, detectability, and diagnostic confidence was assessed. Between-group comparisons were performed with Wilcoxon signed rank test. RESULTS: Readers 1, 2, and 3 demonstrated overall preference for gadobenate in 75, 89, and 103 patients, compared with that for gadopentetate in seven, 10, and six patients, respectively (P < .0001). Significant (P < .0001) preference for gadobenate was demonstrated for diagnostic information end points, percentage of lesion enhancement, and CNR. Superiority of gadobenate was significant (P < .001) in patients with intraaxial and extraaxial lesions. CONCLUSION: Gadobenate compared with gadopentetate at an equivalent dose provides significantly better enhancement and diagnostic information for CNS MR imaging.

Central Nervous System Diseases↗
PubMedDate not supplied

Evaluation of neutropenic fever: value of serum and plasma parameters in clinical practice.

Treatment-related mortality due to infectious complications following potentially curable aggressive chemotherapy remains a major clinical problem. However, the diagnosis of neutropenic infections is difficult. Although it is common practice to institute empirical broad-spectrum antibiotics in neutropenic fever, liberal use of antibiotics may contribute to increasing resistance and superinfection such as systemic mycosis. Clinicians are searching for a highly specific and sensitive marker indicating early infection. Serum concentrations of several acute-phase proteins (C-reactive protein, serum amyloid A), proinflammatory cytokines (TNFalpha, IL-1, IFNgamma, IL-6, IL-8), soluble adhesion molecules (soluble E-selectin, vascular cell adhesion molecule 1, intercellular adhesion molecule 1) and more recently procalcitonin have been investigated as to whether these may contribute to identifying infections as the cause of neutropenic fever. Unfortunately, at present, based on the small and inconsistent amount of data available from the literature one is tempted to conclude that the predictive values of all these parameters are too low to influence the clinically based initial treatment decisions in patients with neutropenic fever.

Biomarkers↗
PubMed2004

Psychiatric conditions in an evolutionary context.

Psychiatric conditions and the institutions and practices that modern society has evolved to handle them originated during the nineteenth century in Anglo European societies. They are products of a historically contingent and culture specific formulation of a class of social problems of behavior that came to the fore in relation to intellectual and political economic changes of those societies. However, such problems have a long ancestry. They are intrinsic to human species and the social and cultural systems that its members have evolved since their emergence. This article reviews intellectual quandaries raised by evolutionary study of psychiatric conditions, those of crossing the human/animal divide and crossing historically contingent cultures; and of framing history of psychiatry in terms of social and cultural evolution. The biological architecture underlying psychiatric conditions and the breakthroughs that indigenous psychiatry of different types of societies underwent in formulating signs and symptoms are discussed.

Cultural Characteristics↗
PubMed1995

Detection of carotid stenosis. From NASCET results to clinical practice.

BACKGROUND AND PURPOSE: Results from large multicenter studies have shown that carotid endarterectomy, performed with low perioperative morbidity and mortality, is beneficial for patients with symptomatic carotid stenosis > or = 70% as calculated according to strict angiographic criteria. To apply these results in clinical practice, individual institutions should determine whether locally implemented duplex ultrasonography adequately identifies patients with > or = 70% stenosis and whether the degree of stenosis reported by local angiographers correlates with strict angiographic measurements. METHODS: We compared estimates of carotid stenosis obtained by duplex ultrasonography and the radiologists' reports from conventional cerebral angiography with each other and with results obtained using North American Symptomatic Carotid Endarterectomy Trial (NASCET) criteria. RESULTS: One hundred seventy-one vessels were available for review. In 155 (91%) of the cases, the reports from the ultrasound and angiogram were in agreement with regard to whether the stenosis was > or = 70% or < 70%. In 11 of the 16 cases where there was a disparity between the studies, the ultrasound was in closer agreement with measurements obtained using NASCET criteria. Nine of the angiography reports overestimated the degree of stenosis compared with NASCET measurements; twice angiography underestimated the stenosis. Twice the ultrasound underestimated the stenosis, and three times it overestimated the stenosis. CONCLUSIONS: Duplex ultrasonography was highly sensitive for detecting significant carotid stenosis at our institution; however, angiography reports often graded the degree of stenosis to be more severe than measurements obtained using NASCET criteria. Institutions that evaluate patients for carotid endarterectomy should investigate the correlation between their ultrasound and angiographic studies so that the results of carotid endarterectomy trials can be accurately applied.

Carotid Stenosis↗
PubMed1977

Continuing education, recertification, and examination anxiety.

A substantial majority of the 645 psychiatrists responding to a questionnaire survey favored mandatory continuing education and evidence of continuing education as a requirement for relicensure. The respondents' overwhelming repudiation of recertification may be based on examination anxiety. The respondents recognized the value of continuing education, were even willing to document it in order to be relicensed, but did not wish to examined. Those respondents who were younger, Board-certified, and had an academic appointment were more likely to favor continuing education requirements in order to be relicensed. Private practitioners were underrespresented among the respondents, highlighting the important role that APA and its district branches must play in developing meaningful continuing education opportunities for psychiatrists.

Adult↗
PubMed2004

Social anxiety in outpatients with schizophrenia: a relevant cause of disability.

OBJECTIVE: Social anxiety is a frequent but often unrecognized feature in schizophrenia and is associated with a severe level of disability. To precisely define the assessment, impact, clinical correlates, and consequences of social anxiety in schizophrenia, the authors conducted a survey of schizophrenia patients and a comparison cohort of patients with social anxiety disorder. METHOD: A consecutively enrolled group of 80 outpatients with DSM-IV schizophrenia and a consecutive comparison group of 27 patients with social anxiety disorder were recruited from an institutional psychiatric practice and assessed with the Liebowitz Social Anxiety Scale, Scale for the Assessment of Negative Symptoms, Scale for the Assessment of Positive Symptoms, Social Adjustment Scale, and the Medical Outcomes Study 36-item Short-Form Health Survey. RESULTS: Social anxiety scores of schizophrenia patients with comorbid social anxiety disorder (N=29, 36.3%) did not differ from those of subjects with social anxiety disorder as their primary diagnosis. Schizophrenia patients without social anxiety disorder had significantly lower total scores on the Liebowitz Social Anxiety Scale and lower social and performance anxiety subscale scores than did the other two groups. No differences in negative and positive symptom rates were found between schizophrenia patients with and without social anxiety disorder. Schizophrenia patients with social anxiety disorder had a higher lifetime rate of suicide attempts, greater lethality of suicide attempts, more past substance/alcohol abuse disorder, lower social adjustment, and lower overall quality of life. CONCLUSIONS: Social anxiety is a highly prevalent, disabling condition in outpatients with schizophrenia that is unrelated to clinical psychotic symptoms. The Liebowitz Social Anxiety Scale appeared adequate and reliable in assessing social anxiety disorder in patients with schizophrenia. If these data are confirmed, this study will make a contribution to the search for operational guidelines and adequate next-step treatments for social anxiety disorder in schizophrenia patients.

Adult↗