The American journal of emergency medicine Impact Factor & Information

Publisher: WB Saunders

Journal description

A distinctive blend of practicality and scholarliness makes the American Journal of Emergency Medicine the best source of information on emergency medical care. Covering all activities concerned with emergency medicine, it is the journal to turn to for information to help increase the ability to understand, recognize and treat emergency conditions. Issues contain clinical articles, case reports, review articles, editorials, international notes, book reviews and more.

Current impact factor: 1.15

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.152
2012 Impact Factor 1.704
2011 Impact Factor 1.976
2010 Impact Factor 1.994
2009 Impact Factor 1.542
2008 Impact Factor 1.188
2007 Impact Factor 1.164
2006 Impact Factor 1.518
2005 Impact Factor 1.994
2004 Impact Factor 1.823
2003 Impact Factor 1.489
2002 Impact Factor 1.208
2001 Impact Factor 1.133
2000 Impact Factor 1.054
1999 Impact Factor 0.947
1998 Impact Factor 0.779
1997 Impact Factor 1.056
1996 Impact Factor 0.996
1995 Impact Factor 0.534
1994 Impact Factor 0.386
1993 Impact Factor 0.419
1992 Impact Factor 0.685

Impact factor over time

Impact factor

Additional details

5-year impact 0.00
Cited half-life 8.10
Immediacy index 0.26
Eigenfactor 0.01
Article influence 0.46
Website American Journal of Emergency Medicine, The website
Other titles American journal of emergency medicine (Online), The American journal of emergency medicine
ISSN 1532-8171
OCLC 45483883
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

WB Saunders

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Pre-print allowed on any website or open access repository
    • Voluntary deposit by author of authors post-print allowed on institutions open scholarly website including Institutional Repository, without embargo, where there is not a policy or mandate
    • Deposit due to Funding Body, Institutional and Governmental policy or mandate only allowed where separate agreement between repository and the publisher exists.
    • Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months .
    • Set statement to accompany deposit
    • Published source must be acknowledged
    • Must link to journal home page or articles' DOI
    • Publisher's version/PDF cannot be used
    • Articles in some journals can be made Open Access on payment of additional charge
    • NIH Authors articles will be submitted to PubMed Central after 12 months
    • Authors who are required to deposit in subject-based repositories may also use Sponsorship Option
    • 'WB Saunders' is an imprint of 'Elsevier'
  • Classification
    ​ green

Publications in this journal

  • The American journal of emergency medicine 06/2015; DOI:10.1016/j.ajem.2015.02.049
  • Jonathan Charbit, Ingrid Millet, Camille Maury, Benjamin Conte, Jean-Paul Roustan, Patrice Taourel, Xavier Capdevila
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    ABSTRACT: Occult pneumothoraces (PTXs), which are not visible on chest x-ray, may progress to tension PTX. The aim of study was to establish the prevalence of large occult PTXs upon admission of patients with severe blunt trauma, according to prehospital mechanical ventilation. Patients with severe trauma consecutively admitted to our institution for 5 years were retrospectively analyzed. All patients with blunt thoracic trauma who had undergone computed tomographic (CT) within the first hour of hospitalization were included. Mechanical ventilation was considered as early if it was introduced in the prehospital period or on arrival at the hospital. Occult PTXs were defined as PTXs not visible on chest x-ray. All PTXs were measured on CT scan (largest thickness and vertical dimension). Large occult PTXs were defined by a largest thickness of 30 mm or more. Of the 526 patients studied, 395 (75%) were male, mean age was 37.9 years, mean Injury Severity Score was 22.2, and 247 (47%) received early mechanical ventilation. Of 429 diagnosed PTXs, 296 (69%) were occult. The proportion of occult PTXs classified as large was 11% (95% confidence interval, 8%-15%). The overall prevalence of large occult PTXs was 6% (95% confidence interval, 4%-8%). Both CT measurements and proportion of large occult PTXs were found statistically comparable in patients with or without mechanical ventilation. Six percent of studied patients with severe trauma had a large and occult PTX as soon as admission despite a normal chest x-ray result. The observed sizes and rates of occult PTX were comparable regardless of the initiation of early mechanical ventilation. Copyright © 2015. Published by Elsevier Inc.
    The American journal of emergency medicine 04/2015; DOI:10.1016/j.ajem.2015.03.057
  • Bharti Joshi
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.056
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.055
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    ABSTRACT: ST elevation (STE) on the electrocardiogram (ECG) may be due to acute myocardial infarction (AMI) or other nonischemic pathologies such as left ventricular aneurysm (LVA). The objective of this study was to validate 2 previously derived ECG rules to distinguish AMI from LVA. The first rule states that if the sum of T-wave amplitudes in leads V1 to V4 divided by the sum of QRS amplitudes in leads V1 to V4 is greater than 0.22, then acute ST-segment elevation MI is predicted. The second rule states that if any 1 lead (V1-V4) has a T-wave amplitude to QRS amplitude ratio greater than or equal to 0.36, then acute ST-segment elevation MI is predicted. This was a retrospective analysis of patients with AMI (n = 59) and LVA (n = 16) who presented with ischemic symptoms and STE on the ECG. For each ECG, the T-wave amplitude and QRS amplitude in leads V1 to V4 were measured. These measurements were applied to the 2 ECG rules; and sensitivity, specificity, and accuracy in predicting AMI vs LVA were calculated. For rule 1 (sum of ratios in V1-V4), sensitivity was 91.5%, specificity was 68.8%, and accuracy was 86.7% in predicting AMI. For rule 2 (maximum ratio in V1-V4), sensitivity was 91.5%, specificity was 81.3%, and accuracy was 89.3% in predicting AMI. When patients present to the emergency department with ischemic symptoms and the differential diagnosis for STE on the ECG is AMI vs LVA, these 2 ECG rules may be helpful in differentiating these 2 pathologies. Both rules are highly sensitive and accurate in predicting AMI vs LVA. Copyright © 2015 Elsevier Inc. All rights reserved.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.044
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    ABSTRACT: Patients with acute abdominal pain commonly present to emergency departments. The safe and effective relief of discomfort is a concern to patients and physicians. Intravenous opioids are the traditional method used to provide pain relief in this setting, but intravenous access is time consuming and not always achievable. Alternative methods of pain control may therefore be necessary for the acute management of painful conditions without adding to the overall physical or psychological discomfort. The purpose of this study was to evaluate the feasibility of nebulized fentanyl (NF) in the alleviation of acute and undifferentiated abdominal pain. We also sought to compare NF with intravenous morphine (IVM) and to assess patient and provider satisfaction with NF. Nebulized fentanyl (2 μg/kg) was compared to IVM (0.1 mg/kg) at 10, 20, 30, and 40 minutes; and patient and physician satisfaction was recorded. The NF group experienced more rapid pain relief and more sustained and clinically significant pain relief over the 40-minute study interval. There were no adverse effects noted in the NF group. Both patient and physician satisfaction scores were higher in the NF group. Fentanyl citrate at a dose of 2 μg/kg through a breath-actuated nebulizer appears to be a feasible and safe alternative to IVM (0.1 mg/kg) in the treatment of acute abdominal pain. Copyright © 2015. Published by Elsevier Inc.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.046
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.053
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.045
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.051
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.047
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.030
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    ABSTRACT: In 2009, Florida initiated a statewide prescription drug-monitoring program (PDMP) to encourage safer prescribing of controlled substances and reduce drug abuse and diversion. Data supporting the utility of such programs in the emergency department (ED) is scarce. This study sought to determine the effect of PDMP data on controlled substance prescribing from the ED. In this pre-post study utilizing a historical control, pharmacists in the ED provided prescribers with a summary of the PDMP data for their patients. The number of controlled substances prescribed in the intervention group was compared with that prescribed in the historical control to determine if the intervention resulted in a change in the average number of controlled substance prescribed. Among the 710 patients evaluated, providing prescribers with PDMP data did not alter the average number of controlled substance per patient prescribed (0.23 controlled substances per patient in the historical control compared with 0.28 controlled substances per patient in the intervention group; 95% confidence interval [CI], -0.016 to 0.116; P = .125). All prescribers surveyed indicated that having PDMP data altered their controlled substance prescribing and felt more comfortable prescribing controlled substances. Although the results did not demonstrate a change in the average number of controlled substances prescribed when prescribers were provided with PDMP data, results from the survey indicate that prescribers felt the data altered their prescribing of controlled substances, and thus were more contented prescribing controlled substances. Copyright © 2015. Published by Elsevier Inc.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.036
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    ABSTRACT: Dengue is a worldwide public health problem, and its clinical severity ranges from asymptomatic infection to a fatal disease. Although cardiac involvement of dengue viral infection has been reported in the literature, there were only rare reports of fulminant dengue myocarditis and no cardiac mechanical support was used in the reported cases. Herein, we presented a case, 55 year-old female Taiwanese , of dengue hemorrhagic fever complicated with profound shock, acute pulmonary edema and acute kidney injury. Fulminant myocarditis was diagnosed according to deterioration of heart function, elevated cardiac enzymes, and electrical conduction disturbance. Despite of intra-aortic balloon pumping being used for hemodynamic support, the patient still finally expired due to myocarditis-related cardiac arrest. This case reminds physicians that fulminant myocarditis is a rare but possible complication of dengue viral infection and intra-aortic balloon pumping is a feasible mechanical support even under severe thrombocytopenia status. However, for patients complicated with dengue myocarditis-related cardiac arrest, intra-aortic balloon pumping may not be effective and we still need new strategy for this challenging issue.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.039
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.029
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    ABSTRACT: We determined the effects of comprehensive point-of-care testing (POCT) on process of care in critically ill emergency department (ED) patients. We hypothesized that POCT would shorten ED length of stay (LOS), reduce time to test results, and reduce time to completion of intravenous (IV) contrast computed tomography (CT) imaging compared with central lab testing. A before and after study was performed in ED patients triaged to the critical care area. During the before period, traditional lab testing was performed, whereas in the after period, bedside POCT devices were introduced in all 15 critical care beds with 5 testing cartridges (chemistry with hemoglobin and hematocrit, troponin I, brain natriuretic peptide, lactate, and international normalized ratio [INR]). Clinical protocols indicated when POCT should be used. The numbers of critical ED patients before and after introducing POCT were 1405 and 981 respectively. Test turnaround (minutes) was significantly reduced with bedside POCT for all five tests. Use of POCT reduced the median [interquartile range] time to completion of IV contrast CT by 81 minutes (96 [55-214] vs 177 [78-300]; P = .004). Point-of-care testing significantly reduced median ED LOS in patients who received an IV contrast CT (260 [180-410] vs 347 [347 (202-523]; P = .03). Introduction of comprehensive bedside POCT in critical ED patients is associated with significant reductions in test turnaround, and time to completion of CT scanning when IV contrast is required. ED LOS was also reduced in the latter population. Copyright © 2015. Published by Elsevier Inc.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.034
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    ABSTRACT: Periannular extension of infection is a rare but potentially fatal complication of infective endocarditis (IE). The accurate detection and delineation of periannular complications are crucial in patient management which may also provide guidance for surgical interventions. Potential complications from a periannular extension of IE include periannular abscess, pseudo-aneurysm formation and subsequent development of aorto-cavitary fistula. Here, we present a case of a 46-year-old man with prosthetic aortic valve endocarditis complicated with perivalvular abscess formation that was managed with aortic homograft implantation.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.041
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    ABSTRACT: Spontaneous intracerebral hemorrhage (ICH) is responsible for 9% to 27% of all strokes worldwide, with high early case fatality and poor functional outcome. Structural consequences secondary to ICH, especially the mass effects, are common and predictive of clinical deterioration and poor outcomes. While cranial computed tomography is the reference imaging modality in diagnosis and monitoring of patients with ICH, it has some limitations in practice. By contrast, transcranial color-coded duplex sonography (TCCS) provides a useful and ideal method for diagnosis and monitoring purposes. This article presents a case of a previously healthy 46-year-old male patient who was admitted to the intensive care unit after evacuation of a right temporal lobe hematoma. The patient developed severe intracranial hypertension and TCCS detected at the bedside the ICH and a significant leftward MLS, findings confirmed by cranial CT. TCCS is able to rapidly detect at the bedside the ICH and its related complications, thus becoming in a valuable modality to be applied in neuroemergency care.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.040
  • The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.037
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    ABSTRACT: Salicylates are a common component of a wide variety of over-the-counter products. Ingesting these salicylate-containing products improperly can be fatal. Classically, physicians recognize the increased anion gap metabolic acidosis that develops when salicylate poisoning occurs. This is certainly true in most cases, but caution is still warranted. There are reports that salicylates have caused laboratory errors in some commonly used analyzers resulting in false negatives putting the patient at risk for significant morbidity and mortality. This case report discusses an instance of salicylate poisoning with normal anion gap metabolic acidosis.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.042
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    ABSTRACT: Literature to date has suggested advantages of sedation with the combination of ketamine and propofol over ketamine alone or propofol alone. However, there is a paucity of data regarding sedation with the combination of ketamine and propofol in pediatric emergency medicine. A retrospective case series analysis of children who underwent sedation with the combination of ketamine and propofol in a pediatric emergency department was conducted. Study covariates were extracted from the emergency department medical records. Four hundred twenty-nine patients, 297 males and 132 females, with a median age of 6.8 years (interquartile range, 3.9-10.9 years), underwent sedation by pediatric emergency physicians. Serious adverse events during sedation (SAEDS) were recorded in 52 procedures (12.1%), which included 39 hypoxic events (9.1%), 12 apneic events (2.8%), and 1 laryngospasm (0.2%). All SAEDS were managed successfully, and no child underwent intubation because of an adverse reaction or required hospitalization. Multivariate logistic regression analysis did not reveal any association between age, weight, fasting time, analgesic medication provided before sedation, length of procedure, capnography use, dosages of medications, and the presence of SAEDS. This is the largest reported series of sedation with the combination of ketamine and propofol in pediatric emergency medicine. Findings suggest that sedation with the combination of ketamine and propofol can be safely performed by a skilled emergency physician. Copyright © 2015. Published by Elsevier Inc.
    The American journal of emergency medicine 03/2015; DOI:10.1016/j.ajem.2015.03.033