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American Journal of Case Reports is ranked the World leading among journals dedicated to publishing clinical case reports. AJCR is indexed in Web of Science, PubMed/ PMC, Scopus

(1) CiteScore (Impact Factor - like by Scopus, Elsevier) is the number of citations received by a journal in one year to documents published in the three previous years, divided by the number of documents indexed in Scopus published in those same three years.

(2) SNIP (Source Normalized Impact per Paper) measures a source’s contextual citation impact by weighting citations based on the total number of citations in a subject field. It helps you make a direct comparison of sources in different subject fields. SNIP takes into account the characteristics of the source's subject field, which is the set of documents citing that source.

(3) SJR is weighted by the prestige of a journal. Subject field, quality, and reputation of the journal have a direct effect on the value of a citation. SJR assigns relative scores to all of the sources in a citation network. Its methodology is inspired by the Google PageRank algorithm, in that not all citations are equal. A source transfers its own 'prestige', or status, to another source through the act of citing it. A citation from a source with a relatively high SJR is worth more than a citation from a source with a lower SJR. 

Clinical case reports are an invaluable first-hand source of evidence in medicine and a tool most often used in practice to exchange information and generate a more expanded search for evidence. In addition to the “evidence of what happened”, single or multiple cases are an important basis for further and more advanced research on diagnosis, treatment effectiveness, causes and outcomes of disease. However limited their conclusions may be, case reports remain a fundamental component of medicine, contributing greatly to the advancement of health care. In today's ever-expanding Evidence-Based Medicine, case reporting require a well-defined focus, content, and structure.

Presently, only a fraction of case reports is useful for clinical decision-making and bedside-decision oriented research. Therefore, the aim of the Journal is to gather case reports across medical disciplines, thereby integrating interdisciplinary, international medical knowledge.

Published: 2020-03-30

Fatal Mumps Myocarditis Associated with Left Ventricular Non-Compaction

Leila Jemail, Masashi Miyao, Hideki Hamayasu, Hirozo Minami, Hitoshi Abiru, Shiro Baba, Toshio Osamura, Keiji Tamaki, Hirokazu Kotani

(Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Kyoto City, Kyoto, Japan)

Am J Case Rep 2020; 21:e921177

DOI: 10.12659/AJCR.921177

BACKGROUND: Myocarditis is a rare but potentially fatal complication of mumps virus infection. Left ventricular non-compaction (LVNC) is a rare congenital abnormality that can lead to development of low cardiac output, cardiac dysfunction, arrhythmias, or sudden cardiac death. To the best of our knowledge, no autopsy cases of mumps myocarditis with LVNC have been reported in the literature. Here, we report an autopsy case of a 21-month-old girl who died due to mumps myocarditis associated with an undiagnosed LVNC.
CASE REPORT: Postmortem computed tomography demonstrated bilaterally enlarged parotid glands. Serum analysis of anti-mumps IgM titer was positive. Macroscopic and histological examinations revealed glandular destruction with massive inflammatory cell infiltration of the enlarged parotid glands and mild inflammatory cell infiltration of the heart, which showed prominent trabeculations and deep intra-trabecular recesses, indicating LVNC. Immunohistochemical analyses showed positive immunostainings for mumps in the cardiac and salivary gland tissues.
CONCLUSIONS: These findings suggest that mumps myocarditis associated with LVNC contributed to this patient’s death. Myocarditis patients with other comorbidities, including LVNC, may be at higher risk of sudden death. Further reports of mumps myocarditis and LVNC are needed to better understand the mechanisms of sudden unexpected deaths in children.

Keywords: Autopsy, Comorbidity, Death, Sudden, Heart Defects, Congenital, Pediatrics, Vaccination

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