Academic Emergency Medicine Journal Impact Factor & Information

Publisher: Society for Academic Emergency Medicine (U.S.), Wiley

Journal description

AEM is a monthly peer-reviewed journal that publishes material relevant to the practice, education, and investigation of emergency medicine, and reaches a wide audience of emergency care practitioners and educators. Each issue contains a broad range of topics relevant to the improvement of emergency, urgent, or critical care of the acutely ill or injured patient. Regular features include original research, preliminary reports, education & practice, annotated literature.

Current impact factor: 2.01

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 2.006
2013 Impact Factor 2.198
2012 Impact Factor 1.757
2011 Impact Factor 1.861
2010 Impact Factor 2.197
2009 Impact Factor 2.478
2008 Impact Factor 2.46
2007 Impact Factor 1.99
2006 Impact Factor 1.741
2005 Impact Factor 1.789
2004 Impact Factor 1.898
2003 Impact Factor 1.844
2002 Impact Factor 1.535
2001 Impact Factor 1.144
2000 Impact Factor 1.419
1999 Impact Factor 1.748
1998 Impact Factor 1.079
1997 Impact Factor 1.042

Impact factor over time

Impact factor

Additional details

5-year impact 2.28
Cited half-life 7.70
Immediacy index 0.72
Eigenfactor 0.01
Article influence 0.86
Website Academic Emergency Medicine website
Other titles Academic emergency medicine
ISSN 1069-6563
OCLC 28131897
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details


  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Some journals have separate policies, please check with each journal directly
    • On author's personal website, institutional repositories, arXiv, AgEcon, PhilPapers, PubMed Central, RePEc or Social Science Research Network
    • Author's pre-print may not be updated with Publisher's Version/PDF
    • Author's pre-print must acknowledge acceptance for publication
    • Non-Commercial
    • Publisher's version/PDF cannot be used
    • Publisher source must be acknowledged with citation
    • Must link to publisher version with set statement (see policy)
    • If OnlineOpen is available, BBSRC, EPSRC, MRC, NERC and STFC authors, may self-archive after 12 months
    • If OnlineOpen is available, AHRC and ESRC authors, may self-archive after 24 months
    • Publisher last contacted on 07/08/2014
    • This policy is an exception to the default policies of 'Wiley'
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The effect of sex on survival in out-of-hospital cardiac arrest (OHCA) is controversial. Some studies report more favorable outcomes in women, while others suggest the opposite, citing disparities in care. Whether sex predicts differential age-specific survival is still uncertain. The objective was to study the sex-associated variation in survival to hospital discharge in OHCA patients as well as the relationship between age and sex for predicting survival. The Ontario Prehospital Advanced Life Support (OPALS) registry, collected in a large study of rapid defibrillation and advanced life support programs, is Utstein-compliant and has data on OHCA patients (1994 to 2002) from 20 communities in Ontario, Canada. All adult OHCAs not witnessed by emergency medical services (EMS) and treated during one of the three main OPALS phases were included. Clinically significant variables were chosen a priori (age, sex, witnessed arrest, initial cardiopulmonary resuscitation [CPR], shockable rhythm, EMS response interval, and OPALS study phase) and entered into a multivariable logistic regression model with survival to hospital discharge as the outcome, with sex and age as the primary risk factors. Fractional polynomials were used to explore the relationship between age and survival by sex. A total of 11,479 (out of 20,695) OPALS cases met inclusion criteria and 10,862 (94.6%) had complete data for regression analysis. As a group, women were older than men (median age = 74 years vs. 69 years, p < 0.01), had fewer witnessed arrests (43% vs. 49%; p < 0.01), had fewer initial ventricular fibrillation/ventricular tachycardia rhythms (24% vs. 42%; p < 0.01), had a lower rate of bystander CPR (12% vs. 17%; p < 0.01), and had lower survival (1.7% vs. 3.2%; p < 0.01). Survival to hospital admission and return of spontaneous circulation did not differ between women and men (p > 0.05). The relationship between age, sex, and survival to hospital discharge could not be analyzed in a single regression model, as age did not have a linear relationship with survival for men, but did for women. Thus, age was kept as a continuous variable for women but was transformed for men using fractional polynomials [ln(age) + age(3) ]. In sex-stratified regression models, the adjusted probability of survival for women decreased as age increased (adjusted odds ratio = 0.88, 95% confidence interval = 0.81 to 0.96, per 5-year increase in age) while for men, the probability of survival initially increased with age until age 65 years and then decreased with increasing age. Women had a higher probability of survival until age 47 years, after which men maintained a higher probability of survival. Overall OHCA survival for women was lower than for men in the OPALS study. Factors related to the sex differences in survival (rates of bystander CPR and shockable rhythms) may be modifiable. The probability of survival differed across age for men and women in a nonlinear fashion. This differential influence of age on survival for men and women should be considered in future studies evaluating survival by sex in OHCA population. © 2014 by the Society for Academic Emergency Medicine.
    Academic Emergency Medicine 12/2014; 21(12):1503-1511. DOI:10.1111/acem.12540
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    ABSTRACT: Objectives: The objective of this study was to test the effect of a brief educational and counseling intervention on increasing the uptake of free testing for Chlamydia trachomatis (chlamydia) and Neisseria gonorrhea (gonorrhea) among young female emergency department (ED) patients. Women are particularly vulnerable to more serious consequences of these infections due to asymptomatic presentation. Increased testing is important to detect, treat, and halt the spread of these infections among asymptomatic women. Methods: This was a randomized controlled trial. Research assistants (RAs) approached female patients in two EDs. Eligible patients were between 18 and 35 years of age, who reported having sex with males, but were not attending the ED for either treatment of sexually transmitted infection (STI) or testing for possible STI exposure. Participants responded to survey questions about their lifetime and past 3-month substance use, number of recent sexual partners, condom use, and perception of risks for chlamydia and gonorrhea infections. Following the survey, the RAs randomized participants into study control or treatment arms. Each treatment arm participant received a brief educational/counseling intervention from the RA. The brief intervention focused on the woman's personal risks for chlamydia and gonorrhea and condoms attitudes and usage. As the primary outcome of this study, participants were offered free urine tests for chlamydia and gonorrhea infection postintervention or post-survey completion, depending on group assignment. Results: A total of 171 women completed the baseline assessment and were offered chlamydia and gonorrhea testing. The mean (±SD) age was 26 (±4.76) years, 18% were Hispanic, and 12% were Spanish-speaking only. The brief intervention that was offered to increase these women's awareness of their STI risk did not result in increased acceptance of testing; 48% in the brief intervention group accepted testing (95% confidence interval [CI] = 32% to 64%) versus 36% in the control group (95% CI = 19% to 53%). In a multivariable logistic regression, only self-identifying as being Hispanic was associated with greater willingness to be tested. Of the asymptomatic women tested (n = 71), five tested positive for chlamydia. This represents a positivity rate of 7%. There were no positive test results for gonorrhea. Women who reported high-risk factors for STI, such as younger age (≤25 years), having sex in the past 90 days without using condoms, identified substance use, or previous STI, were not more likely to accept the offer of chlamydia and gonorrhea testing. Conclusions: The brief intervention used in this study did not increase the uptake of testing for chlamydia and gonorrhea infections in this sample, in comparison to receiving no intervention. Although Hispanic women were more likely to accept chlamydia and gonorrhea testing, it is concerning that those women who report STI risk factors were not more likely to accept the offer of chlamydia and gonorrhea testing. Future research should focus on the refinement of an intervention protocol to focus on prior STI and lack of condom use to increase the uptake of testing among this high-risk group.
    Academic Emergency Medicine 12/2014; 21(12):1512-1520. DOI:10.1111/acem.12539
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    ABSTRACT: Objectives: To the best of the authors' knowledge, gender differences in nonmedical opioid presentations to the emergency department (ED) have not been studied. The objective was to explore gender differences in ED visits related to nonmedical prescription opioid use in a nationally representative sample. Methods: Data from the 2011 U.S. Department of Health and Human Services Substance Abuse and Mental Health Services Administration's Drug Abuse Warning Network (DAWN) were analyzed to compare visit characteristics between women and men. Logistic regression models were developed to examine the association between gender and specific drug presentations and clinical outcomes. Results: There were an estimated 426,010 DAWN-defined visits involving prescription opioid use in 2011. The prevalence of drugs in opioid-involved visits was similar between women and men. Ingestion of another drug along with opioids was associated with increased odds of hospital admission for both women and men, and types of opioids ingested were similar between women and men. However, gender differences were noted in clinical outcomes, depending on the specific drug combination. Conclusions: Gender differences exist in ED presentations related to prescription opioids. Further research is needed to understand these differences and any implications for gender-specific emergency care and brief interventions.
    Academic Emergency Medicine 12/2014; 21(12). DOI:10.1111/acem.12547
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    ABSTRACT: The primary objective of this study was to determine whether patient-described pain correlates with patient-described stress, anxiety, and satisfaction with ongoing treatment and if that correlation differs by gender. This was a prospective observational study at an urban, Level I trauma center conducted between June 1, 2010, and January 1, 2013. Patients reporting pain rated greater than 3 of 10 were eligible. Patients who qualified and consented for participation completed demographic and pain, anxiety, stress, and satisfaction scales at baseline, every 30 minutes, and at discharge. Data were analyzed using analysis of variance, chi-square tests, t-tests, multiple regression, and the Wilcoxon-Mann-Whitney rank test. A total of 7,124 patients were screened for enrollment. Of those, 3,495 (49%) did not qualify at screening for various reasons, including insufficient pain levels (17.5%), elected not to participate (37.7%), did not qualify for other reasons (12.4%), and reason not captured (32.4%). A total of 3,629 (51%) screened patients were eligible and consented. Of those, 620 (16.8%) did not have any data collected past baseline, leaving 3,009 as the final sample size. The patients completing data collection had a median age of 39 years (range = 18 to 90 years), and 50% were male. The mean presenting pain visual analog scale (VAS) score was 71.5 mm. Presenting stress and anxiety VAS scores were significantly higher in females (0.61 and 0.53, respectively) than males (0.56 and 0.50, respectively), whereas presenting pain VAS (0.71 male and 0.72 female) and satisfaction VAS (0.34 male and 0.35 female) did not differ by sex. Ethnicity, education, and income were all statistically different when compared with baseline pain, stress, anxiety, and satisfaction. Male gender was associated with a significant change in pain over time from baseline (coefficient = 0.040, p = 0.037); however, when adjusting for age, ethnicity, education, and income, and for changes in stress, anxiety, and satisfaction VAS scores, changes in pain related to male gender was no longer significant (coefficient = 0.034, p = 0.11). When asked about their satisfaction with the results of the pain treatment that had been provided, patients reported a median of 2 (out of 6, 1 = satisfied, 6 = dissatisfied; interquartile range = 1 to 2). There was no significant difference between sexes (p > 0.90). Patient-reported stress and anxiety were higher among female patients than male patients, but there was no significant difference in reported pain and satisfaction between sexes. Sex alone was not a significant predictor of change in pain for patients presenting to the emergency department with pain-related complaints. Anxiety and stress may potentially influence the pain-gender relationship. © 2014 by the Society for Academic Emergency Medicine.
    Academic Emergency Medicine 12/2014; 21(12):1478-1484. DOI:10.1111/acem.12543
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    ABSTRACT: Objectives Low-dose ketamine has been used perioperatively for pain control and may be a useful adjunct to intravenous (IV) opioids in the control of acute pain in the emergency department (ED). The aim of this study was to determine the effectiveness of low-dose ketamine as an adjunct to morphine versus standard care with morphine alone for the treatment of acute moderate to severe pain among ED patients. MethodsA double-blind, randomized, placebo-controlled trial with three study groups was conducted at a large, urban academic ED over a 10-month period. Eligible patients were 18 to 65years old with acute moderate to severe pain (score of at least 5 out of 10 on the numerical pain rating scale [NRS] and pain duration < 7days) who were deemed by their treating physician to require IV opioids. The three study groups were: 1) morphine and normal saline placebo (standard care group), 2) morphine and 0.15mg/kg ketamine (group 1), or 3) morphine and 0.3mg/kg ketamine (group 2). Participants were assessed at 30, 60, and 120minutes after study medication administration and received rescue analgesia as needed to target a 50% reduction in pain. The primary outcome measure of pain relief, or pain intensity reduction, was derived using the NRS and calculated as the summed pain-intensity (SPID) difference over 2hours. The amount and timing of rescue opioid analgesia was evaluated as a secondary outcome. The occurrence of adverse events was also measured. ResultsSixty patients were enrolled (n=20 in each group). There were no differences between study groups with respect to age, sex, race/ethnicity, preenrollment analgesia, or baseline NRS. Over the 2-hour poststudy medication administration period, the SPIDs were higher (greater pain relief) for the ketamine study groups than the control group (standard care 4.0, interquartile range [IQR]= 1.8 to 6.5; group 1 7.0, IQR= 4.3 to 10.8; and group 2 7.8, IQR= 4.8 to 12.8; p < 0.02). The SPIDs for the ketamine groups were similar (p < 0.46). When compared to standard care, group 2 sustained the reduction in pain intensity up to 2hours, whereas group 1 was similar to standard care by 2hours. Similar numbers of patients received rescue analgesia: standard care group, seven of 20, 35%; group 1, four of 20, 20%; and group 2, four of 20, 20% (p=0.48). Among those receiving rescue analgesia, those in the standard care group received analgesia sooner than either low-dose ketamine group, on average. More participants in the low-dose ketamine groups reported dysphoria and dizziness. Conclusions Low-dose ketamine is a viable analgesic adjunct to morphine for the treatment of moderate to severe acute pain. Dosing of 0.3mg/kg is possibly more effective than 0.15mg/kg, but may be associated with minor adverse events. Future studies should evaluate additional outcomes, optimum dosing, and use in specific populations. Resumen ObjetivosLa ketamina a dosis bajas se ha utilizado de forma perioperatoria para el control del dolor y puede ser un coadyuvante util para los opiaceos intravenosos (IV) en el control del dolor agudo en el Servicio de Urgencias (SU). El objetivo de este estudio fue determinar la efectividad de la ketamina a dosis bajas como un coadyuvante para la morfina frente a la atencion estandar con solo morfina para el tratamiento del dolor agudo moderado-grave en los pacientes del SU. MetodologiaSe llevo a cabo un ensayo clinico aleatorizado, controlado y doble ciego con tres grupos de estudio en un gran SU universitario urbano en un periodo de 10 meses. Los pacientes candidatos tenian entre 18 y 65 anos de edad, un dolor agudo moderado-grave (puntuacion al menos de 5 sobre 10 en la escala de puntuacion del dolor numerica [EPDN] y duracion del dolor < 7 dias) y se considero por los urgenciologos que requerian opiaceos IV. Los tres grupos de estudio fueron: 1) morfina y placebo con suero salino (grupo atencion estandar), 2) morfina y 0,15mg/kg ketamina (grupo 1), o 3) morfina y 0,3mg/kg ketamina (grupo 2). Los participantes se valoraron a los 30, 60 y 120 minutos tras la administracion del farmaco del estudio y recibieron analgesia de rescate si la necesitaba para conseguir el objetivo de una reduccion del 50% en el dolor. La medida de resultado principal fue el alivio del dolor o la reduccion de la intensidad del dolor que se obtuvo mediante la EPDN, que se calculo como la suma de la diferencia de intensidad del dolor (SDID) en 2 horas. La cantidad y el tiempo de la analgesia con opiaceos de rescate se evaluaron como resultados secundarios. Tambien se midio la aparicion de efectos adversos. ResultadosSe incluyeron 60 pacientes (n=20 en cada grupo). No hubo diferencias entre los grupos de estudio respecto a la edad, sexo, raza/etnia, analgesia preinclusion o EPDN basal. Pasado el periodo de administracion del farmaco a las 2 horas del estudio, los SDID fueron mayores (mayor alivio del dolor) para los grupos de estudio de ketamina que el grupo control (atencion estandar, 4,0 [RIC 1,8 a 6.5]; grupo 1, 7,0 [RIC 4,3 a 10,8]; y grupo 2, 7,8 [RIC 4,8 a 12.8]; p < 0.02). Los SDID para los grupos de ketamina fueron similares (p<0,46). Cuando se comparo la atencion estandar, el grupo 2 sostuvo la reduccion en la intensidad del dolor por encima de las 2 horas, mientras el grupo 1 fue similar a la atencion estandar a las 2 horas. Hubo una tendencia hacia mas pacientes en el grupo de atencion estandar (9 de 20, 45%) que recibieron analgesia de rescate en comparacion con aquellos en el grupo 1 (4 de 20, 20%) o en el grupo 2 (4 de 20, 20%) (p < 0,07). Entre aquellos que recibieron analgesia de rescate, los del grupo de atencion estandar recibieron la analgesia mas pronto que cualquiera de los grupos ketamina a dosis bajas, en el promedio. Un mayor porcentaje de participantes en los grupos de ketamina a dosis bajas documento disforia y mareo. ConclusionesLa ketamina a dosis bajas es un posible coadyuvante analgesico para la morfina para el tratamiento del dolor agudo moderado-grave. La dosis de 0,3mg/kg es posiblemente mas efectiva que la de 0,15mg/kg, pero puede estar asociada con efectos adversos menores. Futuros estudios deberian evaluar los resultados adicionales, la dosis optima y el uso en poblaciones especificas.
    Academic Emergency Medicine 11/2014; 21(11):1193-1202. DOI:10.1111/acem.12510
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    ABSTRACT: Objectives Tricyclic antidepressants (TCAs) are highly lipophilic medications used to treat posttraumatic stress disorder and chronic pain. Intravenous lipid emulsion (ILE) is a recent antidote for lipophilic drug overdose with unclear effectiveness. ILE has been studied in TCA overdose in small animals, and cases are reported in humans, but controlled studies in a larger animal model are lacking. Given the high lipophilicity of amitriptyline, a TCA, the hypothesis was that ILE would be more effective than the standard antidote sodium bicarbonate in improving amitriptyline-induced hypotension. The objective was to determine if ILE improved hypotension (defined by a mean arterial pressure [MAP] < 60% baseline) compared to sodium bicarbonate for amitriptyline overdose in a critically ill porcine model.
    Academic Emergency Medicine 11/2014; 21(11):1212-1219. DOI:10.1111/acem.12513
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    ABSTRACT: Background Helicopter emergency medical services (EMS) transport is expensive, and previous work has shown that cost-effective use of this resource is dependent on the proportion of minor injuries flown. To understand how overtriage to helicopter EMS versus ground EMS can be reduced, it is important to understand factors associated with helicopter transport of patients with minor injuries. Objectives The aim was to characterize patient and hospital characteristics associated with helicopter transport of patients with minor injuries.
    Academic Emergency Medicine 11/2014; 21(11):1232-1239. DOI:10.1111/acem.12512