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

TitlePyogenic liver abscesses caused by Klebsiella pneumoniae: US appearance and aspiration findings
Authors
Issue Date2007
PublisherRadiological Society of North America, Inc. The Journal's web site is located at http://radiology.rsnajnls.org
Citation
Radiology, 2007, v. 242 n. 3, p. 769-776 How to Cite?
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.
Persistent Identifierhttp://hdl.handle.net/10722/79069
ISSN
2014 Impact Factor: 6.867
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHui, JYHen_HK
dc.contributor.authorYang, MKWen_HK
dc.contributor.authorCho, DHYen_HK
dc.contributor.authorLi, Aen_HK
dc.contributor.authorLoke, TKLen_HK
dc.contributor.authorChan, JCSen_HK
dc.contributor.authorWoo, PCYen_HK
dc.date.accessioned2010-09-06T07:50:12Z-
dc.date.available2010-09-06T07:50:12Z-
dc.date.issued2007en_HK
dc.identifier.citationRadiology, 2007, v. 242 n. 3, p. 769-776en_HK
dc.identifier.issn0033-8419en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79069-
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.en_HK
dc.languageengen_HK
dc.publisherRadiological Society of North America, Inc. The Journal's web site is located at http://radiology.rsnajnls.orgen_HK
dc.relation.ispartofRadiologyen_HK
dc.subject.meshAdolescenten_HK
dc.subject.meshAdulten_HK
dc.subject.meshAgeden_HK
dc.subject.meshAged, 80 and overen_HK
dc.subject.meshBiopsy, Needle - methodsen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHumansen_HK
dc.subject.meshKlebsiella Infections - pathology - ultrasonographyen_HK
dc.subject.meshKlebsiella pneumoniae - isolation & purificationen_HK
dc.subject.meshLiver Abscess, Pyogenic - pathology - ultrasonographyen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMiddle Ageden_HK
dc.subject.meshReproducibility of Resultsen_HK
dc.subject.meshSensitivity and Specificityen_HK
dc.subject.meshUltrasonography - methodsen_HK
dc.titlePyogenic liver abscesses caused by Klebsiella pneumoniae: US appearance and aspiration findingsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0033-8419&volume=242&spage=769&epage=776&date=2007&atitle=Pyogenic+liver+abscesses+caused+by+Klebsiella+pneumoniae:+US+appearance+and+aspiration+findingsen_HK
dc.identifier.emailWoo, PCY:pcywoo@hkucc.hku.hken_HK
dc.identifier.authorityWoo, PCY=rp00430en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1148/radiol.2423051344en_HK
dc.identifier.pmid17325065en_HK
dc.identifier.scopuseid_2-s2.0-33847188800en_HK
dc.identifier.hkuros149570en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33847188800&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume242en_HK
dc.identifier.issue3en_HK
dc.identifier.spage769en_HK
dc.identifier.epage776en_HK
dc.identifier.isiWOS:000244679200015-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHui, JYH=35080369800en_HK
dc.identifier.scopusauthoridYang, MKW=15052777600en_HK
dc.identifier.scopusauthoridCho, DHY=7401737746en_HK
dc.identifier.scopusauthoridLi, A=13405115700en_HK
dc.identifier.scopusauthoridLoke, TKL=6701863756en_HK
dc.identifier.scopusauthoridChan, JCS=15724681800en_HK
dc.identifier.scopusauthoridWoo, PCY=7201801340en_HK

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