Article: Pyogenic liver abscesses caused by Klebsiella pneumoniae: US appearance and aspiration findings

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TitlePyogenic liver abscesses caused by Klebsiella pneumoniae: US appearance and aspiration findings
AuthorsHui, JYH2
Yang, MKW2
Cho, DHY2
Li, A2
Loke, TKL2
Chan, JCS2
Woo, PCY1
Issue Date2007
PublisherRadiological Society of North America, Inc. The Journal's web site is located at http://radiology.rsnajnls.org
CitationRadiology, 2007, v. 242 n. 3, p. 769-776 [How to Cite?]
DOI: http://dx.doi.org/10.1148/radiol.2423051344
AbstractPurpose: To retrospectively compare the ultrasonographic (US) appearance and amount of pus obtained at initial aspiration for liver abscesses caused by Klebsiella pneumoniae with those for liver abscesses caused by other bacterial pathogens. Materials and Methods: This study had medical ethics committee approval; informed consent was not required. Asian patients with pyogenic liver abscesses in a 5-year period were included. Abscess clinical, laboratory, and microbiologic characteristics and treatment and outcome were analyzed. US images were classified according to the size of the largest liver abscess, the echogenic pattern of the lesion, the presence of any echogenic debris within the lesion, increased through transmission in the posterior aspect of the lesion, and the lesion margin. Clinical and US characteristics of patients with K pneumoniae monomicrobial liver abscesses and those with non-K pneumoniae monomicrobial or polymicrobial liver abscesses were compared. The χ2 or Fisher exact test was used for categorical variables; the Student t test was used for continuous variables. Results: There were 120 patients with pyogenic liver abscesses. Median patient age was 69 years (range, 13-94 years). Fifty-nine patients were male, and 61 were female. Fifty patients with K pneumoniae monomicrobial and 33 patients with non-K pneumoniae monomicrobial or polymicrobial liver abscesses underwent US. K pneumoniae monomicrobial liver abscesses were associated with diabetes mellitus (P < .001), higher blood glucose levels at admission (P < .05), predominantly solid US appearances (P < .001), irregular or indistinct lesion margins (P < .05), less than 2 mL of pus aspirated (P < .001), and longer duration of antibiotic treatment (P < .05). Conclusion: A predominantly solid appearance at US is associated with K pneumoniae monomicrobial liver abscess. K pneumoniae liver abscess is associated with a much smaller quantity of pus at initial aspiration. © RSNA, 2007.
ISSN0033-8419
2011 Impact Factor: 5.726
2011 SCImago Journal Rankings: 0.475
DOIhttp://dx.doi.org/10.1148/radiol.2423051344
ISI Accession Number IDWOS:000244679200015
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorHui, JYH
dc.contributor.authorYang, MKW
dc.contributor.authorCho, DHY
dc.contributor.authorLi, A
dc.contributor.authorLoke, TKL
dc.contributor.authorChan, JCS
dc.contributor.authorWoo, PCY
dc.date.accessioned2010-09-06T07:50:12Z
dc.date.available2010-09-06T07:50:12Z
dc.date.issued2007
dc.description.abstractPurpose: To retrospectively compare the ultrasonographic (US) appearance and amount of pus obtained at initial aspiration for liver abscesses caused by Klebsiella pneumoniae with those for liver abscesses caused by other bacterial pathogens. Materials and Methods: This study had medical ethics committee approval; informed consent was not required. Asian patients with pyogenic liver abscesses in a 5-year period were included. Abscess clinical, laboratory, and microbiologic characteristics and treatment and outcome were analyzed. US images were classified according to the size of the largest liver abscess, the echogenic pattern of the lesion, the presence of any echogenic debris within the lesion, increased through transmission in the posterior aspect of the lesion, and the lesion margin. Clinical and US characteristics of patients with K pneumoniae monomicrobial liver abscesses and those with non-K pneumoniae monomicrobial or polymicrobial liver abscesses were compared. The χ2 or Fisher exact test was used for categorical variables; the Student t test was used for continuous variables. Results: There were 120 patients with pyogenic liver abscesses. Median patient age was 69 years (range, 13-94 years). Fifty-nine patients were male, and 61 were female. Fifty patients with K pneumoniae monomicrobial and 33 patients with non-K pneumoniae monomicrobial or polymicrobial liver abscesses underwent US. K pneumoniae monomicrobial liver abscesses were associated with diabetes mellitus (P < .001), higher blood glucose levels at admission (P < .05), predominantly solid US appearances (P < .001), irregular or indistinct lesion margins (P < .05), less than 2 mL of pus aspirated (P < .001), and longer duration of antibiotic treatment (P < .05). Conclusion: A predominantly solid appearance at US is associated with K pneumoniae monomicrobial liver abscess. K pneumoniae liver abscess is associated with a much smaller quantity of pus at initial aspiration. © RSNA, 2007.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationRadiology, 2007, v. 242 n. 3, p. 769-776 [How to Cite?]
DOI: http://dx.doi.org/10.1148/radiol.2423051344
dc.identifier.doihttp://dx.doi.org/10.1148/radiol.2423051344
dc.identifier.epage776
dc.identifier.hkuros149570
dc.identifier.isiWOS:000244679200015
dc.identifier.issn0033-8419
2011 Impact Factor: 5.726
2011 SCImago Journal Rankings: 0.475
dc.identifier.issue3
dc.identifier.openurl
dc.identifier.pmid17325065
dc.identifier.scopuseid_2-s2.0-33847188800
dc.identifier.spage769
dc.identifier.urihttp://hdl.handle.net/10722/79069
dc.identifier.volume242
dc.languageeng
dc.publisherRadiological Society of North America, Inc. The Journal's web site is located at http://radiology.rsnajnls.org
dc.publisher.placeUnited States
dc.relation.ispartofRadiology
dc.relation.referencesReferences in Scopus
dc.subject.meshAdolescent
dc.subject.meshAdult
dc.subject.meshAged
dc.subject.meshAged, 80 and over
dc.subject.meshBiopsy, Needle - methods
dc.subject.meshFemale
dc.subject.meshHumans
dc.subject.meshKlebsiella Infections - pathology - ultrasonography
dc.subject.meshKlebsiella pneumoniae - isolation & purification
dc.subject.meshLiver Abscess, Pyogenic - pathology - ultrasonography
dc.subject.meshMale
dc.subject.meshMiddle Aged
dc.subject.meshReproducibility of Results
dc.subject.meshSensitivity and Specificity
dc.subject.meshUltrasonography - methods
dc.titlePyogenic liver abscesses caused by Klebsiella pneumoniae: US appearance and aspiration findings
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. United Christian Hospital Hong Kong