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Assessment of the usefulness of sputum culture for diagnosis of community-acquired pneumonia using the PORT predictive scoring system

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dc.contributor.authorGarcía-Vázquez, Elisa
dc.contributor.authorMarcos, María Angeles
dc.contributor.authorMensa, José
dc.contributor.authorRoux, Andrés de
dc.contributor.authorPuig, Jordi
dc.contributor.authorFont, Carmen
dc.contributor.authorFrancisco, Gloria
dc.contributor.authorTorres, Antonio
dc.contributor.departmentMedicina
dc.date.accessioned2024-06-28T07:33:35Z
dc.date.available2024-06-28T07:33:35Z
dc.date.issued2004
dc.description©2004 American Medical Association. All rights reserved. This document is the Published, version of a Published Work that appeared in final form in Archives of internal medicine. To access the final edited and published work see https://doi.org/10.1001/archinte.164.16.1807es
dc.description.abstractBackground: The usefulness of sputum culture in guiding microbiological diagnosis of community-acquired pneumonia is controversial. We evaluate and assess it using the Patients Outcome Research Team (PORT) predictive scoring system. Methods: A cohort of 1669 patients with community-acquired pneumonia was studied. Before administering antibiotic therapy, sputum was collected and its quality evaluated. Samples were gram stained and those of good quality were assessed for a predominant morphotype (PM). Sputum cultures were processed according to standard protocols. Results: A sputum sample was obtained from 983 (59%) of the 1669 patients and 532 (54%) of the samples were of good quality. There was a PM in 240 (45%) of the latter samples (ie, for 14.4% of the 1669 patients) and there was no PM in 292 (55%). Culture yielded a microorganism in 207 (86%) of the 240 samples with PM and 57 (19.5%) of the 292 samples without PM (P .05). Rates of sputum obtained, good-quality sputum specimens, PM identification, and positive culture were not significantly different among the PORT-score groups of patients (P>.05). The sensitivity and specificity of the gram-positive diplococci identification in the sputum culture of Streptococcus pneumoniae were 60% and 97.6%, and the positive and negative predictive values were 91% and 85.3%, respectively. Conclusions: Good-quality sputum with PM could be obtained in only 14.4% of all patients. A PORT-score group in which sputum could be of greater usefulness in identifying the causative organism could not be iden- tified. The presence of gram-positive diplococci in gramstained sputum culture was highly specific for S pneumoniaees
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dc.format.extent5es
dc.identifier.citationArch Intern Med. 2004 Sep 13 164(16):1807-11.
dc.identifier.doihttps://doi.org/10.1001/archinte.164.16.1807
dc.identifier.issnPrint: 0003-9926
dc.identifier.issnElectronic:1538-3679
dc.identifier.urihttp://hdl.handle.net/10201/142747
dc.languageenges
dc.publisherAmerican Medical Associationes
dc.relationSin financiación externa a la Universidades
dc.relation.ispartofThis work was presented in poster form at the 42nd Interscience Conference on Antimicrobial Agents and Che- motherapy; September 27-31, 2002; San Diego, Califes
dc.relation.publisherversionhttps://pubmed.ncbi.nlm.nih.gov/15364677/es
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.titleAssessment of the usefulness of sputum culture for diagnosis of community-acquired pneumonia using the PORT predictive scoring systemes
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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