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At least 487 records · Page 27Linked to original sources
PubMed2002

Active infective endocarditis due to methicillin-resistant Staphylococcus aureus in the acute phase of infectious mononucleosis.

A 26-year-old male was treated for acute hepatitis due to Epstein-Barr virus and infectious mononucleosis in our hospital. At 2 weeks after admission, there was relapse with high fever. A blood culture detected methicillin-resistant Staphylococcus aureus. A two-dimensional echocardiogram revealed severe aortic regurgitation and vegetation on the left coronary cusp of the aortic valve. The diagnosis was active infective endocarditis due to methicillin-resistant Staphylococcus aureus in the acute phase of infectious mononucleosis. Following preoperative administration of vancomycin, the aortic valve was replaced with a Carbomedics prosthetic valve. The aortic valve was bicuspid, and the right cusp and non-coronary cusp were conjoined. As the focus of infection was localized to the left coronary cusp, the infected tissue was fully removed with resection of all the cusps. Although fever persisted long after the operation, the blood culture became negative for methicillin-resistant Staphylococcus aureus, and repeated echocardiograms including transesophageal echocardiogram showed no prosthetic valve infection. Vancomycin was administered until the C-reactive protein became negative at 45 days after the operation.

Acute-Phase Reaction↗
PubMed1982

Cytotoxic effector cells from infectious mononucleosis patients in the acute phase do not specifically kill Epstein-Barr virus genome-carrying lymphoid cell lines.

We describe a study in which we investigated the cytotoxic activities of thymusderived (T) lymphocytes and natural killer cells against Epstein-Barr virus (EBV) genome-carrying lymphoid cell lines. Purified subpopulations of lymphocytes from eight patients with infectious mononucleosis and six healthy normal EBV-seropositive donors were tested. Enriched T-cells were obtained by passing purified whole blood lymphocyte preparations through human immunoglobulin-anti-immunoglobulin-coated glass bead columns. The cytolytic activity of effector cells was determined by the ability of these cells to lyse human target cells that were internally labeled with (51)Cr. These targets included cells from both EBV genome-carrying and EBV genome-negative lymphoid lines derived from malignant tumors, as well as from lymphocytes transformed in vitro by EBV, and were chosen to represent a wide spectrum of EBV-associated membrane antigens. We found that cytotoxic T-cells from patients with infectious mononucleosis showed no EBV-related specific cell killing per se, although a trend for increased killing of cell lines derived from spontaneous in vivo growing tumors, EBV genome carrying or not, was noted; however, this trend was not observed with cell lines derived from cord blood lymphocytes after EBV infection in vitro. In addition, our data suggest that natural killer cells may play an important role in controlling EBV infection in patients with infectious mononucleosis in the acute phase of the disease, particularly since T-cells (obtained after removal on immunoglobulin-anti-immunoglobulin columns of natural killer cells presumably bearing Fc receptors) were less efficient killers than whole blood lymphocytes; furthermore, lysis by whole blood lymphocytes was also greatest against cell lines derived from malignant tumors (as opposed to in vitro EBV-transformed cord blood lymphoid lines), irrespective of whether these targets were EBV genome positive or negative.

Cell Line↗
PubMed1985

Acute cerebellar syndrome in infectious mononucleosis: documentation of two cases with Epstein-Barr virus infection.

Acute cerebellar ataxia has been described occasionally with infectious mononucleosis. Two additional cases are reported with serologic identification of Epstein-Barr virus (EBV) infection in blood and cerebrospinal fluid. As with previously described cases, the outcome was benign, and examination and laboratory studies did not indicate diffuse neurologic involvement. Visual and brainstem auditory-evoked responses were normal. Electroencephalograms (EEG) demonstrated 14 and 6 per second positive spikes in both patients. This pattern is considered a normal variant and has been recorded from depth electrodes and reported with deep midline lesions. These cases support the prognosis of benign cerebellar involvement in infectious mononucleosis and suggest that evidence of EBV infection be sought in patients with acute ataxia. The significance of 14/sec and 6/sec positive EEG spikes is uncertain.

Acute Disease↗
PubMed2004

Infectious mononucleosis and Epstein-Barr virus.

Epstein-Barr virus (EBV) is a gamma-herpesvirus that infects over 90% of the human population worldwide. It is usually transmitted between individuals in saliva, and establishes replicative infection within the oropharynx as well as life-long latent infection of B cells. Primary EBV infection generally occurs during early childhood and is asymptomatic. If delayed until adolescence or later, it can be associated with the clinical syndrome of infectious mononucleosis (also known as glandular fever or 'mono'), an illness characterised by fevers, pharyngitis, lymphadenopathy and malaise. EBV infection is also associated with the development of EBV-associated lymphoid or epithelial cell malignancies in a small proportion of individuals. This review focuses on primary EBV infection in individuals suffering from infectious mononucleosis. It discusses the mechanism by which EBV establishes infection within its human host and the primary immune response that it elicits. It describes the spectrum of clinical disease that can accompany primary infection and summarises studies that are leading to the development of a vaccine designed to prevent infectious mononucleosis.

Adolescent↗
PubMed1988

[Spontaneous splenic rupture in infectious mononucleosis--organ-sparing operation using fibrin glue].

We present the case of a 16-year-old female patient with infectious mononucleosis complicated by spontaneous splenic rupture on the eighth day of the disease. This event is seldom; only 38 cases of true spontaneous rupture of the spleen in infectious mononucleosis could be found when the literature was reviewed. The diagnosis of splenic rupture in our case was made by ultrasound, just as the further postoperative follow-up. For the first time the splenic lesion was successfully managed by application of fibrin tissue adhesive.

Adolescent↗