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KMID : 0882420080740010037
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Korean Journal of Medicine
2008 Volume.74 No. 1 p.37 ~ p.50
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A clinical study on pyogenic liver abscesses: the changes in the clinical features during the recent 12 years
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Ha Jong
Kim Hyun-Jin
Kim Tae-Hyo
Lee Ok-Jae
You Seung-Suk
Lee Won-Hyun
Choi Sun-Pil
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Abstract
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Background/Aims : The clinical features of pyogenic liver abscess have changed after the introduction of antimicrobial agents and intervention. This study was conducted to clarify the changes in the clinical features of pyogenic liver abscess during the recent 12 years.
Methods : We reviewed the medical records of 157 cases with pyogenic liver abscesses that were treated at our hospital between January 1995 and July 2006. The period was divided to 1 (1995-2000; 72 cases) and 2 (2001-July 2006; 85 cases).
Results : Prevalence of patients with an age over 70 increased significantly in period 2 compared to period 1 (p=0.019). The biliary tract was the most common portal of entry during the 12 years, and biliary procedures were the important causative factors. Compared to the non-biliary group, the biliary group was older and it had a higher frequency of recurrent abscess, Escherichia coli infection, and air-biliary gram (p<0.05). Klebsiella pneumoniae was the most common pathogen, and the frequency of E. coli was increased in period 2 compared to period 1 (p=0.045). Only 6.9% and 1.2% of the patients during period 1 and 2, respectively, were treated surgically. The overall mortality was 0.6% (0% vs. 1.2%, respectively). The interval from onset to admission, the size of the abscess cavity, the time to defervescence and the hospital stay were shorter in period 2 than in period 1 (p=0.044, p=0.013, p=0.02 and p=0.0002, respectively).
Conclusion : Recently, pyogenic liver abscess affects the elderly, and biliary procedures are its important causative factor. E. coli is still a common pathogen in relation to the biliary portal of entry. The elderly patients with biliary problems need better medical attention to avoid the development of pyogenic liver abscess, and for making an early diagnosis and achieving a better outcome. (Korean J Med 74:37-50, 2008)
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KEYWORD
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Pyogenic, Liver abscess, Elderly, Biliary, Klebsiella pneumoniae, Escherichia coli
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