Case Studies in Infectious DiseaseStreptococcal viridans subacute bacterial endocarditis associated with antineutrophil cytoplasmic autoantibodies (ANCA)*,**
Section snippets
Illustrative case
A 60-year-old man was admitted to the hospital with a 5-month history of “weight loss and not feeling well.” Symptoms began with cough occasionally productive of blood-tinged sputum, nausea, and vomiting. This progressed to muscle aches, decreased appetite, and fatigue. The patient lost a total of 55 lbs during this 5-month period. Two weeks before arriving at the hospital, the patient was empirically treated with 500 mg of oral levofloxacin every 24 hours for one week, but the treatments was
Hospital course
The patient had an extensive workup that included pulmonary function testing as a screening test for possible pulmonary disease, which were normal. In an attempt to rule out a malignant focus, computed tomography of the chest, abdomen, and pelvis was obtained, which were unremarkable except for splenomegaly.
Biopsy of the lower extremity rash revealed a leukocytoclastic (allergic) vasculitis attributed to an allergic reaction to levofloxacin. The patient had a renal biopsy with global retraction
Discussion
S viridans SBE commonly occurs in the setting of valvular disease, as in our patient, and it is characterized by a slow, indolent course with low-grade fever (<102°F), night sweats, weight loss, and vague systemic complaints.1, 2
SBE stimulates both humoral and cellular immunity, manifested by hypergammaglobulinemia and splenomegaly. Increased IgM RF develop in approximately 50% of patients with SBE of more than 6 weeks duration. RF titers correlate with duration or degree of
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Cited by (28)
Antineutrophil cytoplasmic antibodies associated with infective endocarditis: Literature review
2017, Revue de Medecine InterneShunt Nephritis and Pyogenic Spondylitis With a Positive PR3-ANCA Associated With Chronically Infected Ventriculoatrial Shunt
2017, Anuario de PsicologiaCitation Excerpt :ANCA formation has been reported in the course of various chronic viral (e.g., HIV, Hepatitis B, Hepatitis C), bacterial (e.g., Streptococcus, Staphylococcus, Enterococcus), fungal (e.g., Aspergillus), protozoal (e.g., Streptococcus, Staphylococcus, Enterococcus), and multicellular parasitic infection (e.g., Echinococcus).13 For example, PR3-ANCA in infectious endocarditis is a typical disease.14,15 In shunt nephritis, PR3-ANCA could also become positive.
Antineutrophil cytoplasmic antibodies in pneumology
2011, Immuno-Analyse et Biologie SpecialiseeFatal Streptococcus viridans (S. oralis) aortic prosthetic valve endocarditis (PVE) with paravalvular abscesses related to steroids
2009, Heart and Lung: Journal of Acute and Critical CareCitation Excerpt :Furthermore, clinicians may be misled by the presence of laboratory tests, which are usually associated with rheumatic disorders but have also been associated with SBE, that is, antineutrophilic cytoplasmic antibodies. Clinicians must also be aware that antineutrophilic cytoplasmic antibody positivity may occur with rheumatic diseases but also may be a nonspecific laboratory finding of SBE.19,20 Clinicians must be vigilant not to ascribe all patients with low-grade fevers, malaise, and muscular skeletal symptoms to a rheumatic process, particularly patients with prosthetic heart valves.
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Reprint requests: Burke A. Cunha, MD, Chief, Infectious Disease Division, Winthrop-University Hospital, Mineola, NY 11501.
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