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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Report of cases of and taxonomic considerations for large-colony-forming Lancefield group C streptococcal bacteremia.</title><author><name sortKey="Carmeli, Y" sort="Carmeli, Y" uniqKey="Carmeli Y" first="Y" last="Carmeli">Y. Carmeli</name></author><author><name sortKey="Ruoff, K L" sort="Ruoff, K L" uniqKey="Ruoff K" first="K L" last="Ruoff">K L Ruoff</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">7559958</idno><idno type="pmc">228345</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC228345</idno><idno type="RBID">PMC:228345</idno><date when="1995">1995</date><idno type="wicri:Area/Pmc/Corpus">001836</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001836</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Report of cases of and taxonomic considerations for large-colony-forming Lancefield group C streptococcal bacteremia.</title><author><name sortKey="Carmeli, Y" sort="Carmeli, Y" uniqKey="Carmeli Y" first="Y" last="Carmeli">Y. Carmeli</name></author><author><name sortKey="Ruoff, K L" sort="Ruoff, K L" uniqKey="Ruoff K" first="K L" last="Ruoff">K L Ruoff</name></author></analytic><series><title level="j">Journal of Clinical Microbiology</title><idno type="ISSN">0095-1137</idno><idno type="eISSN">1098-660X</idno><imprint><date when="1995">1995</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Traditionally, group C streptococci include four species: Streptococcus equisimilis, S. zooepidemicus, S. equi, and S. dysgalactiae, the first three of which are group C beta-hemolytic streptococci (GCBHS). However, many of the beta-hemolytic streptococci carrying Lancefield group C antigen isolated from clinical specimens are S. milleri. These organisms can be differentiated by colony size. We retrospectively collected data concerning large-colony-forming GCBHS bacteremia that occurred during a period of 8 years at the Massachusetts General Hospital. A total of 222 cases of beta-hemolytic streptococcal bacteremia were identified; data on the Lancefield grouping were available in 192 cases: 45 cases (23.6%) were group A, 96 cases (50%) were group B, 7 cases (3.6%) were group C (large colony forming), and 44 cases (22.9%) were group G. The medical records for cases of large-colony-forming GCBHS bacteremia were reviewed. In one case, the isolate was thought to be a contaminant; the other six cases are reported (five males and one female; mean age, 55 years). All patients had severe underlying conditions, and none had a history of exposure to animals. The clinical syndromes included two cases of cellulitis and one case each of endocarditis, myocardial infarction complicated by infection, pneumonia, and myofasciitis. The diagnoses for two patients with endovascular infections were delayed. Three of the six patients had fatal outcomes, and other two, after prolonged hospitalization, were transferred to a long-term rehabilitation center. We concluded that the severe outcomes reflect delay in diagnosis and treatment as well as the severity of the underlying diseases. The taxonomy of GCBHS is discussed.(ABSTRACT TRUNCATED AT 250 WORDS)</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Clin Microbiol</journal-id><journal-title>Journal of Clinical Microbiology</journal-title><issn pub-type="ppub">0095-1137</issn><issn pub-type="epub">1098-660X</issn></journal-meta><article-meta><article-id pub-id-type="pmid">7559958</article-id><article-id pub-id-type="pmc">228345</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Report of cases of and taxonomic considerations for large-colony-forming Lancefield group C streptococcal bacteremia.</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Carmeli</surname><given-names>Y</given-names></name></contrib><contrib contrib-type="author"><name><surname>Ruoff</surname><given-names>K L</given-names></name></contrib></contrib-group><aff id="N0x94acf48.0x97022f8">Medical Services, Massachusetts General Hospital, Boston 02114, USA.</aff><pub-date pub-type="ppub"><month>8</month><year>1995</year></pub-date><volume>33</volume><issue>8</issue><fpage>2114</fpage><lpage>2117</lpage><abstract><p>Traditionally, group C streptococci include four species: Streptococcus equisimilis, S. zooepidemicus, S. equi, and S. dysgalactiae, the first three of which are group C beta-hemolytic streptococci (GCBHS). However, many of the beta-hemolytic streptococci carrying Lancefield group C antigen isolated from clinical specimens are S. milleri. These organisms can be differentiated by colony size. We retrospectively collected data concerning large-colony-forming GCBHS bacteremia that occurred during a period of 8 years at the Massachusetts General Hospital. A total of 222 cases of beta-hemolytic streptococcal bacteremia were identified; data on the Lancefield grouping were available in 192 cases: 45 cases (23.6%) were group A, 96 cases (50%) were group B, 7 cases (3.6%) were group C (large colony forming), and 44 cases (22.9%) were group G. The medical records for cases of large-colony-forming GCBHS bacteremia were reviewed. In one case, the isolate was thought to be a contaminant; the other six cases are reported (five males and one female; mean age, 55 years). All patients had severe underlying conditions, and none had a history of exposure to animals. The clinical syndromes included two cases of cellulitis and one case each of endocarditis, myocardial infarction complicated by infection, pneumonia, and myofasciitis. The diagnoses for two patients with endovascular infections were delayed. Three of the six patients had fatal outcomes, and other two, after prolonged hospitalization, were transferred to a long-term rehabilitation center. We concluded that the severe outcomes reflect delay in diagnosis and treatment as well as the severity of the underlying diseases. The taxonomy of GCBHS is discussed.(ABSTRACT TRUNCATED AT 250 WORDS)</p></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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