Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology Impact Factor & Information

Publisher: Elsevier

Current impact factor: 1.32

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 1.318

Additional details

5-year impact 0.00
Cited half-life 5.00
Immediacy index 0.06
Eigenfactor 0.00
Article influence 0.00
ISSN 1875-0834

Publisher details


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    • Publisher last reviewed on 03/06/2015
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Objectives: To evaluate the echocardiographic variables and sedation after two dosages of dexmedetomidine combined with butorphanol in healthy dogs. Animals: Fourteen healthy dogs. Methods: The dogs received dexmedetomidine 5 mcg/kg IM and butorphanol 0.4 mg/kg (low dose (LD), n = 6) or dexmedetomidine 10 mcg/kg IM and butorphanol 0.4 mg/kg (recommended dose (RD), n = 8). Sedation scoring, noninvasive blood pressure measurement, and echocardiography were performed before sedation at baseline, at 20 minutes (T20), and 60 minutes (T60) after drug administration. Results: The median sedation scores were increased at both T20 and T60 in the RD group, and at T60 in the LD group, compared with baseline (p < 0.0001, p = 0.012). At T60, the RD dogs were more sedated than the LD dogs (p = 0.0093). The median cardiac output (CO) decreased at both T20 (63%) and T60 (65%) in the RD group and at T60 (42%) in the LD group, compared with baseline (p = 0.0011, p = 0.0055). The median heart rate (HR) was decreased at both T20 and T60 in the RD group and at T60 in the LD group, compared with baseline (p = 0.0009, p = 0.0001). In both RD and LD dogs, valvular regurgitation developed and was identified by color Doppler imaging. Conclusions: There were significant hemodynamic changes, mainly related to HR and indices of systolic function, following administration of dexmedetomidine in these healthy dogs. The changes also included decreases in systolic function and CO, as well as appearance of 'new' valvular regurgitation. Caution should be used when considering dexmedetomidine for sedation in dogs with, or being screened for, cardiovascular disease.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 11/2015; DOI:10.1016/j.jvc.2015.08.008
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    ABSTRACT: Objectives: The goal of this study was to evaluate the static electrocardiograms of clinically healthy black-tailed prairie dogs (Cynomys ludovicianus), and suggest normal values. Animals: Thirteen clinically healthy black-tailed prairie dogs were included in the study. They were anesthetized for physical examination, and complete laboratory data including troponin I concentration, thoracic radiographs, echocardiograms, and static ECG were recorded. Material and methods: Static electrocardiograms were recorded using standard, six-limb leads from each of the 13 apparently healthy prairie dogs. Each prairie dog was anesthetized with isoflurane via facemask. Electrocardiograms were recorded in right lateral recumbency. The data were retrospectively analyzed. Lead II was used for waveform analysis. Results: The median heart rate was 250 bpm (range 147-320). Median P-wave amplitude was 0.05 mV (range 0.01-0.06) and P-wave duration was 0.03 s (range 0.02-0.03). The PR interval was 0.06 s (range 0.04-0.06). The R-wave amplitude was 0.5 mV (range 0.1-1.15) and the QRS duration was 0.02 s (range 0.02-0.03). The QT interval was 0.12 s (range 0.1-0.14). Sixty-two percent of the QRS complexes were of Rs configuration. Conclusions: Static electrocardiograms can be performed and evaluated in anesthetized prairie dogs. This report provided normal values in clinically healthy black-tailed prairie dogs.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 11/2015; DOI:10.1016/j.jvc.2015.05.002
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    ABSTRACT: In the same week, two Labrador Retriever dogs presented to The Ohio State University Veterinary Medical Center for cardiac evaluation. The presenting signs in both dogs included: weight loss, weakness, lethargy, and decreased femoral pulses. The first dog presented in cardiogenic shock and biventricular congestive heart failure, which initially responded to treatment; however, the dog was euthanized due to deteriorating clinical condition. In contrast, the second dog had a milder clinical course without signs of congestive heart failure, and remained stable over the 2-month period of clinical evaluation prior to euthanasia. Echocardiographic evaluation revealed a dilated cardiomyopathy phenotype in the first dog, while a space-occupying intraluminal mass originating at the aortic valve with preserved left ventricular systolic function was observed in the second dog. At autopsy, each dog had a large obstructive luminal mass affecting the ascending aorta and arch. Histopathology revealed that the mass in the first dog was consistent with a benign chondroma, while in the second dog the morphologic characteristics, mitotic activity, and infiltrative growth justified a diagnosis of chondrosarcoma. This report presents the contrasting clinical disease progression and findings in two dogs with aortic neoplasia, with a proposed pathogenesis of cardiac failure secondary to aortic neoplasia.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 11/2015; DOI:10.1016/j.jvc.2015.08.005
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    ABSTRACT: Objectives: To assess the feasibility of transesophageal echocardiography (TEE) as an alternative to angiography for the diagnosis of R2A coronary artery (CA) abnormalities. Animals: Twenty-two dogs with a diagnosis of type R2A CA anomaly were reviewed/analyzed. Methods: A retrospective study of case records. Transthoracic echocardiography (TTE), transesophageal echocardiography (TEE), angiography, and follow-up investigations of pulmonic stenosis (PS) with R2A CA were carried out to compare different diagnostic methods. Results: Based on the TTE morphology, PS with an aberrant CA was suspected in all dogs (n = 22) and later confirmed by angiography in 18 cases (18/22), and necropsy in two cases (2/22). In 12 cases (12/22), TEE and angiography were both performed and confirmed the diagnosis of an R2A anomaly. Two cases (2/22) were diagnosed only with TEE. Conclusions: Transesophageal echocardiography may be considered an effective tool to diagnose CA abnormalities, in particular when TTE is inconclusive. Transesophageal echocardiography offers detailed and easily reproducible views of coronary ostia, and the spatial relationship between the right common CA and the great arteries. Although it is not possible to define the course of the more distal coronary branches, TEE has proven reliable in recognizing those elements that can constitute a risk for the execution of a balloon valvuloplasty (BV). Therefore, TEE can be used to confirm this type of CA anomaly and prevent a BV, which is contraindicated in these cases. In addition, TEE avoids any further vascular access, radiation exposure, and contrast medium injection.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 11/2015; DOI:10.1016/j.jvc.2015.08.007
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    ABSTRACT: A 7-month-old Irish Setter underwent transcatheter therapy of a muscular ventricular septal defect (VSD) and pulmonary valve stenosis. Standard devices for muscular VSD closure could not span the interventricular septum due to right ventricular hypertrophy, and an Amplatzer post-infarction muscular VSD occluder with a wider waist was successfully implanted. Following VSD closure, inflation of the balloon dilation catheter during balloon pulmonary valvuloplasty resulted in iatrogenic embolization of the VSD occluder to the left ventricular outflow tract. Retrieval and reimplantation of the device was achieved using a snare catheter. This report describes a potential complication and management during intracardiac device implantation in a dog. Additionally, the case illustrates that the Amplatzer post-infarction muscular VSD occluder holds potential value in animals with a hypertrophied interventricular septum that cannot be spanned using a conventional device.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 10/2015; DOI:10.1016/j.jvc.2015.08.003
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    ABSTRACT: Background: Sighthound breeds are known to have different cardiac sizes and dimensions from other breeds; therefore, breed-specific references are required to avoid misinterpretation of echocardiographic findings. End-diastolic volume (EDV) and end-systolic volume (ESV) reference intervals derived from Simpson's method of discs (SMOD) do not exist for Salukis or Whippets. Objectives: To establish EDV and ESV reference intervals for SMOD in Salukis and Whippets. Animals: 110 Salukis and 119 Whippets. Methods: Reference intervals for SMOD with and without normalization to body surface area (BSA) were established using the right parasternal and left apical views in 93 healthy Salukis and 82 healthy Whippets. Volumes were compared between both echocardiographic views, genders, and racing and show pedigree dogs. The 90% reference intervals were calculated using the robust method. Results: Agreement between right-sided and left-sided echocardiographic views was good. Reference intervals indexed to body surface area (BSA) for Whippets were 59-109 mL/m² for end-diastolic volume index and 18-53 mL/m² for end-systolic volume index. Corresponding values for Salukis were 68-126 mL/m² for end-diastolic volume index and 27-64 mL/m² for end-systolic volume index. There were no indexed volume differences between male and female or racing and show pedigree dogs in both breeds. The non-normalized volumes significantly differed between genders. Conclusions and clinical importance: Whippets and Salukis had larger systolic and diastolic left ventricular volumes compared with other breeds. This study provided echocardiographic reference intervals for SMOD-derived left ventricular volumes for these athletic breeds.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 10/2015; DOI:10.1016/j.jvc.2015.08.002
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    ABSTRACT: A 6-month old Labrador retriever was presented with an acute history of collapse during exercise. A grade III/VI left basilar systolic murmur and thoracic radiographs showing severe right heart enlargement with an enlarged main pulmonary artery were most consistent with a clinical diagnosis of pulmonic stenosis. Echocardiography revealed an intracardiac mass partially obstructing the right ventricular outflow tract. The mass was surgically excised, and histopathology diagnosed a benign vascular hamartoma of the right ventricle. Short-term follow-up showed resolution of clinical signs with no evidence of local recurrence. Intracardiac masses should be considered a differential diagnosis for patients with acute-onset syncope.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 10/2015; DOI:10.1016/j.jvc.2015.07.004
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    ABSTRACT: Objective: Plasma atrial/A-type natriuretic peptide concentration (CpANP) was measured in horses presenting with various heart diseases to assess its potential diagnostic value. Animals: Fifteen healthy horses (Group 1) and 60 horses with various heart diseases associated with normal chamber size and function (Group 2, n = 24), associated with abnormal left atrial (LA) size and/or function but normal left ventricle (LV) (Group 3, n = 19), or associated with both abnormal LA and LV size and/or function (Group 4, n = 17). Methods: CpANP was measured by a commercially available radioimmunoassay. Echocardiographic measurements were compared between groups by one-way ANOVA and Holm-Sidak post-hoc test. Receiver operating characteristics (ROC) analyses were performed to identify the best cut-offs to distinguish between groups. Relations between echocardiographic measurements and biomarker concentrations were assessed with backward stepwise multiple linear regression. Results: CpANP increased from Group 1 to 4 and was significantly higher in horses with heart disease than in controls. CpANP was associated with maximum LA area and LV fractional area change. The ROC analyses showed good specificity but poor sensitivity to distinguish between healthy horses and horses with heart disease overall, and between healthy horses and horses with altered left-sided chamber dimensions and/or function. Conclusion: CpANP is increased in horses with heart disease associated with altered left-sided chamber dimensions and/or function. However, its diagnostic value is compromised by poor sensitivity.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 09/2015; DOI:10.1016/j.jvc.2015.06.003
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    ABSTRACT: Objectives: To develop procedural methodology and assess the safety, utility and effectiveness of a low profile Amplatz(®) canine duct occluder (ACDO) prototype in dogs deemed too small to undergo ductal occlusion with the commercially-available ACDO device. Animals: Twenty-one dogs with left-to-right shunting patent ductus arteriosus (PDA). Dogs were ≥1.5 kg but considered too small to accommodate a 6 Fr catheter or 4 Fr sheath within the femoral artery. Methods: Prospective canine study using a low profile ACDO prototype delivered through a 4 Fr catheter via a femoral arterial approach. Procedural methods, fluoroscopy time, perioperative complications, and residual ductal flow were evaluated, and angiographic ductal morphology and dimensions were tabulated. Results: All 21 dogs underwent successful ductal occlusion using the prototype device, 4 Fr catheter, and right femoral artery approach. No perioperative complications or device embolization occurred. The median minimal ductal diameter was 1.9 mm (range, 0.4-3.4), and the median device size deployed was 4 mm (range, 3-6). Complete ductal occlusion was noted in 17 dogs (81%) on post-deployment angiography. Twenty dogs (95%) had no residual flow on echocardiography performed the following day. In the 17 dogs (81%) that returned for a long-term (≥3months) follow-up evaluation, all had complete ductal occlusion based on echocardiography. Conclusions: The low profile ACDO prototype is a safe and effective method of PDA occlusion in the small dog. The deployment procedure appears of similar technical difficulty to the commercially available ACDO.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 09/2015; DOI:10.1016/j.jvc.2015.06.002
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    ABSTRACT: Objective: Assess the prevalence of congenital heart disease (CHD) in a large population of mixed-breed dogs and cats. Animals: 76,301 mixed-breed dogs and 57,025 mixed-breed cats. Methods: Retrospective review of records and examinations based on specified diagnostic criteria. Results: Among mixed-breed dogs, the prevalence of CHD was 0.13% (51.4% female) and of innocent murmurs was 0.10% (53.0% male). Pulmonic stenosis was the most common defect followed by patent ductus arteriosus, aortic stenosis, and ventricular septal defect. Among mixed-breed cats, prevalence of CHD was 0.14% (55.2% male) and of innocent murmurs was 0.16% (54.4% male). When the 25 cats with dynamic left or right ventricular outflow obstruction were counted with cases of innocent murmurs, the overall prevalence was 0.2%. Ventricular septal defects were the most common feline CHD followed closely by aortic stenosis and hypertrophic obstructive cardiomyopathy. There was no overall sex predilection for CHD in mixed-breed cats or dogs, and no significant difference in CHD prevalence between cats or dogs. Among dogs, subvalvular aortic stenosis and mitral valve dysplasia had a male predisposition while patent ductus arteriosus had a female predisposition. Among cats, valvular pulmonic stenosis, subvalvular and valvular aortic stenosis, and ventricular septal defects had a male predisposition while pulmonary artery stenosis had a female predisposition. Conclusions: The prevalence of CHD in a mixed-breed dogs and cats is lower than for prior studies, perhaps due to the lack of purebreds in the study population or actual changes in disease prevalence.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 09/2015; DOI:10.1016/j.jvc.2015.06.001
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    ABSTRACT: To describe clinical canine patients with naturally occurring pulmonary hypertension and radiographic pulmonary alveolar infiltrates before and after treatment with sildenafil. Ten client-owned dogs. A retrospective analysis of dogs with echocardiographically-determined pulmonary hypertension and pulmonary alveolar infiltrates on thoracic radiographs was performed before (PRE) and after (POST) sildenafil therapy. Clinical scores, pulmonary alveolar infiltrate scores and tricuspid regurgitation gradients were analyzed PRE and POST sildenafil. Pulmonary alveolar infiltrates associated with pulmonary hypertension developed in a diffusely patchy distribution (10/10). Sixty percent of dogs had a suspected diagnosis of interstitial pulmonary fibrosis as the etiology of pulmonary hypertension. Median PRE clinical score was 4 (range: 3-4) compared to POST score of 0 (0-2) (p = 0.005). Median alveolar infiltrate score PRE was 10 (5-12) compared to POST score of 4 (0-6) (p = 0.006). Median tricuspid regurgitation gradient PRE was 83 mmHg (57-196) compared to 55 mmHg POST (33-151) (p = 0.002). A subset of dogs with moderate to severe pulmonary hypertension present with diffuse, patchy alveolar infiltrates consistent with non-cardiogenic pulmonary edema. The typical clinical presentation is acute dyspnea and syncope, often in conjunction with heart murmurs suggestive of valvular insufficiency. This constellation of signs may lead to an initial misdiagnosis of congestive heart failure or pneumonia; however, these dogs clinically and radiographically improve with the initiation of sildenafil. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 08/2015; DOI:10.1016/j.jvc.2015.04.002
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    ABSTRACT: A 5-week-old Holstein heifer calf presented for emergency treatment of signs referable to gastrointestinal disease and hypovolemic shock. Fluid resuscitation uncovered clinical signs of primary cardiac disease and echocardiography revealed multiple congenital cardiac defects. Malformations included a cleft anterior mitral valve leaflet resembling an isolated cleft mitral valve and an apically-located muscular ventricular septal defect. The echocardiographic and postmortem findings associated with these defects are presented and discussed in this report. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 08/2015; DOI:10.1016/j.jvc.2015.03.003
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    ABSTRACT: A 10-year-old male neutered cavalier King Charles Spaniel with a 1-year history of degenerative mitral valve disease presented for dyspnea and severe weakness. He was diagnosed with congestive heart failure, systolic dysfunction, presumptive myocardial infarction and a left atrial thrombus based on thoracic radiographs, electrocardiogram and echocardiographic findings. Clinical signs also suggested right foreleg embolism. The dog was euthanized due to the grave prognosis and a postmortem evaluation was performed. The postmortem examination confirmed myocardial infarction and was thought to be due to embolic showering from the thrombus attached to a partial thickness left atrial endocardial tear. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 08/2015; DOI:10.1016/j.jvc.2015.04.003
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    ABSTRACT: Hyperadrenocorticism has been reported to cause left ventricular (LV) structural and functional abnormalities in human patients. The purpose of the present study was to assess the incidence and features of LV structural and functional changes in dogs with hyperadrenocorticism. Twenty-two client-owned dogs with pituitary-dependent hyperadrenocorticism (n = 15) and cortisol-secreting adrenocortical tumors (n = 7) and 6 control dogs were enrolled in this study. Echocardiographic examinations were performed and non-invasive measurements of systolic blood pressure (SBP) were obtained. The normalized LV wall thickness and LV mass index of the affected dogs differed significantly from those of control dogs. Using a published reference value for M-mode measurements, 15 of the 22 dogs (68%) were found to have increased LV wall thickness. Eleven of the 15 (73%) dogs with increased LV wall thickness were normotensive, and no significant correlation between LV wall thickness and SBP was found. Regardless of the presence of systemic hypertension, hyperadrenocorticism should be included in the differential diagnosis of underlying disorders that may cause LV hypertrophy in dogs. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 08/2015; DOI:10.1016/j.jvc.2015.07.002
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    ABSTRACT: To quantify drug-induced changes in right ventricular (RV) systolic function after administration of pimobendan and atenolol. 80 healthy privately-owned dogs. Using a prospective, blinded, fully-crossed study design with randomized drug administration, RV systolic function was determined twice at two time periods; before and 3 h after administration of pimobendan (0.25 mg/kg PO) or atenolol (1 mg/kg PO). Indices of RV systolic function included tricuspid annular plane systolic excursion (TAPSE), fractional area change (FAC), pulsed-wave tissue Doppler-derived systolic myocardial velocity of the lateral tricuspid annulus (S'), and speckle-tracking-derived global longitudinal RV free wall strain and strain rate. The effect of treatment on percent change from baseline RV function was analyzed with a linear mixed model including the covariates heart rate, body weight, age, gender, drug sequence, and time period. All indices showed a significant (p < 0.0001) increase and decrease from baseline following pimobendan and atenolol, respectively. Significant differences from baseline were attributed to drug treatment (p < 0.0001); whereas, effects of other covariates were not significant. The greatest percent changes, but also highest variability, were observed for S' and strain rate (p < 0.0001). Post-atenolol, a significantly greater proportion of dogs exceeded the repeatability coefficient of variation for FAC and S' compared to TAPSE (p ≤ 0.007). Echocardiographic indices in healthy dogs tracked expected changes in RV systolic function following pimobendan and atenolol and warrant study in dogs with cardiovascular disease. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 07/2015; DOI:10.1016/j.jvc.2015.04.001
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    ABSTRACT: A 4-year-old castrated labrador retriever presented for cardiac evaluation to determine the etiology of cardiogenic pulmonary edema diagnosed 1 month prior. A large pedunculated mass involving the ventral aspect of the mural mitral valve leaflet and the endocardial surface of the left ventricular free wall, resulting in severe mitral regurgitation, was identified on echocardiogram. Histopathology and immunohistochemistry of this mass and other endocardial masses identified at necropsy for S-100 protein were consistent with a diagnosis of schwannoma. To the authors' knowledge, this is the first case of a benign intracardiac schwannoma described in the left heart of a dog. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 06/2015; 17(2). DOI:10.1016/j.jvc.2015.01.006
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    ABSTRACT: Cardiac troponin I (cTnI) has been shown to be an accurate predictor of myocardial injury in cattle. The point-of-care i-STAT 1 immunoassay can be used to quantify blood cTnI in cattle. However, the cTnI reference interval in whole blood of healthy early lactating dairy cows remains unknown. To determine a blood cTnI reference interval in healthy early lactating Holstein dairy cows using the analyzer i-STAT 1. Forty healthy lactating dairy Holstein cows (0-60 days in milk) were conveniently selected from four commercial dairy farms. Each selected cow was examined by a veterinarian and transthoracic echocardiography was performed. A cow-side blood cTnI dosage was measured at the same time. A bootstrap statistical analysis method using unrestricted resampling was used to determine a reference interval for blood cTnI values. Forty healthy cows were recruited in the study. Median blood cTnI was 0.02 ng/mL (minimum: 0.00, maximum: 0.05). Based on the bootstrap analysis method with 40 cases, the 95th percentile of cTnI values in healthy cows was 0.036 ng/mL (90% CI: 0.02-0.05 ng/mL). A reference interval for blood cTnI values in healthy lactating cows was determined. Further research is needed to determine whether cTnI blood values could be used to diagnose and provide a prognosis for cardiac and noncardiac diseases in lactating dairy cows. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 06/2015; 17(2). DOI:10.1016/j.jvc.2015.02.003
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    ABSTRACT: The journal in which you publish your research can have a major influence on the perceived value of your work and on your ability to reach certain audiences. The impact factor, a widely used metric of journal quality and prestige, has evolved into a benchmark of quality for institutions and graduate programs and, inappropriately, as a proxy for the quality of individual authors and articles, affecting tenure, promotion, and funding decisions. As a result, despite its many limitations, publishing decisions by authors often are based solely on a journal's impact factor. This can disadvantage journals in small disciplines, such as veterinary medicine, and limit the ability of authors to reach key audiences. In this article, factors that can influence the impact factor of a journal and its applicability, including precision, citation practices, article type, editorial policies, and size of the research community will be reviewed. The value and importance of veterinary journals such as the Journal of Veterinary Cardiology for reaching relevant audiences and for helping shape disciplinary specialties and influence clinical practice will also be discussed. Lastly, the efforts underway to develop alternative measures to assess the scientific quality of individual authors and articles, such as article-level metrics, as well as institutional measures of the economic and social impact of biomedical research will be considered. Judicious use of the impact factor and the implementation of new metrics for assessing the quality and societal relevance of veterinary research articles will benefit both authors and journals. Copyright © 2015 Elsevier B.V. All rights reserved.
    Journal of veterinary cardiology: the official journal of the European Society of Veterinary Cardiology 05/2015; 17(2). DOI:10.1016/j.jvc.2015.01.002