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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Lin, Wei-Hung Tseng, Chin-Chung Wu, An-Bang Yang, Deng-Chi Cheng, Shian-Wen Wang, Ming-Cheng Wu, Jiunn-Jong |
| Spatial Coverage | Taiwan |
| Description | Country affiliation: Taiwan Author Affiliation: Lin WH ( Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan); Tseng CC ( Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.); Wu AB ( Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.); Yang DC ( Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.); Cheng SW ( Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.); Wang MC ( Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan); Wu JJ ( Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan) |
| Abstract | BACKGROUND/PURPOSE(S): Gram-negative peritonitis is a frequent and serious complication of peritoneal dialysis (PD). No previous reports have focused on Klebsiella pneumoniae infection. The aim of this study was to investigate the host and bacterial factors associated with K. pneumoniae PD-related peritonitis. METHODS: We retrospectively studied K. pneumoniae PD-peritonitis cases treated at a university hospital in southern Taiwan during 1990-2011, and analyzed the clinical features and outcomes and bacterial characteristics of serotypes, hypermucoviscosity (HV), and virulence-associated genes such as wabG, uge, and rmpA in K. pneumoniae PD-related peritonitis. Fifty-four isolates of K. pneumoniae-related community-acquired urinary tract infection (UTI) and 76 morphologically different nonpathogenic K. pneumoniae isolates from healthy adults were used as controls. RESULTS: K. pneumoniae was the second most common monomicrobial pathogen causing Gram-negative PD-related peritonitis (n = 13, 2.7%), and the most common pathogen involved in polymicrobial peritonitis (16/43, 37.2%) and associated with high catheter removal rate (7/16, 43.8%). Compared with Escherichia coli peritonitis cases, patients with monomicrobial K. pneumoniae peritonitis also had insignificantly higher incidence of sepsis/bacteremia [n = 5 (38%), p = 0.11] and a higher mortality rate [n = 3 (23%), p = 0.36]. The prevalence of K1/K2 (n = 1, 7.7%) serotypes was low, but there was a higher prevalence of serotype K20 (n = 3, 23.1%) in K. pneumoniae isolates derived from monomicrobial PD-related peritonitis compared with control groups. HV phenotype (p < 0.001) and rmpA genotype (p = 0.007) were absent in the peritonitis group. CONCLUSION: This is the first study focused on clinical and microbiological characteristics of K. pneumoniae PD-related peritonitis. K. pneumoniae was a common Gram-negative pathogen causing monomicrobial and polymicrobial PD-related peritonitis in southern Taiwan. The bacterial characteristics with low percentage of capsular serotype K1/K2, no significant HV, and absence of rmpA suggest a different pathogenesis in K. pneumoniae PD-related peritonitis compared with that in UTI and liver abscess. |
| File Format | HTM / HTML |
| ISSN | 16841182 |
| e-ISSN | 19959133 |
| Journal | Journal of Microbiology, Immunology and Infection |
| Issue Number | 3 |
| Volume Number | 48 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-06-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Discipline Microbiology Discipline Immunology Klebsiella Infections Epidemiology Klebsiella Pneumoniae Isolation & Purification Peritoneal Dialysis Adverse Effects Peritonitis Hospitals, University Drug Therapy Microbiology Pathology Classification Retrospective Studies Serotyping Taiwan Virulence Factors Genetics Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Infectious Diseases Immunology and Microbiology Immunology and Allergy Microbiology (medical) |
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