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Solin RSC, Kumalawati J, Yusra Y, Indrasari ND. Microbial Profile, Peritoneal Fluid White Blood Cell Count, and Outcome of Peritoneal Dialysis-Related Peritonitis at Indonesian Tertiary Hospital. J Glob Infect Dis 2023; 15:108-112. [PMID: 37800088 PMCID: PMC10549902 DOI: 10.4103/jgid.jgid_16_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 10/07/2023] Open
Abstract
Introduction Peritonitis caused by peritoneal dialysis (PD) remains a common complication of continuous ambulatory PD (CAPD). The purpose of this study is to determine the microbial profile in CAPD-related peritonitis, the optimal cutoff of white blood cell (WBC) count, and the percentage of polymorphonuclear (PMN) in CAPD fluid in the prediction of CAPD-related peritonitis, together with the outcome of CAPD-related peritonitis at an Indonesian tertiary hospital. This is a retrospective cohort study of CAPD-related peritonitis patients at Indonesian tertiary hospitals from November 2020 to October 2022. Methods Patients with suspected CAPD-related peritonitis who were tested for CAPD fluid culture and WBC count in CAPD fluid were eligible for this study. Patient's diagnosis and outcome obtained from medical records. Differences in clinical outcomes by category of microorganisms were analyzed with Fisher exact test. The Mann-Whitney test and receiver operating characteristic curve were used to determine optimal WBC and PMN cutoff. Results This study included 58 patients and 102 episodes of CAPD-related peritonitis. CAPD-related peritonitis was caused by 29.4% Gram-negative bacteria, 21.5% Gram-positive bacteria, 7.8% fungi, and 6.9% polymicrobial bacteria. CAPD fluid WBC count >79 cells/μL and PMN percentage >50% had a sensitivity of 76.4% and a specificity of 92.9% in predicting CAPD-related peritonitis. There was a significant difference in outcome between Gram-negative and Gram-positive bacterial peritonitis. Conclusions It is critical to understand the microbial profile in CAPD-related peritonitis. Lower WBC count cutoff points in CAPD fluids may improve sensitivity in predicting CAPD-related peritonitis.
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Affiliation(s)
- Ro Shinta Christina Solin
- Department of Clinical Pathology, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - July Kumalawati
- Department of Clinical Pathology, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Yusra Yusra
- Department of Clinical Pathology, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Nuri Dyah Indrasari
- Department of Clinical Pathology, Faculty of Medicine, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
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Chao CM, Lai CC, Yu WL. Epidemiology of extended-spectrum β-lactamases in Enterobacterales in Taiwan for over two decades. Front Microbiol 2023; 13:1060050. [PMID: 36762100 PMCID: PMC9905819 DOI: 10.3389/fmicb.2022.1060050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 12/22/2022] [Indexed: 01/28/2023] Open
Abstract
The emergence of antimicrobial resistance among microorganisms is a serious public health concern, and extended-spectrum β-lactamases (ESBL)-producing Enterobacterales is one of the major concerns among antibiotic-resistant bacteria. Although the prevalence of ESBL in Enterobacterales has been increasing with time, the prevalence of ESBL could differ according to the species, hospital allocation, sources of infections, nosocomial or community acquisitions, and geographic regions. Therefore, we conducted a comprehensive review of the epidemiology of ESBL-producing Enterobacterales in Taiwan. Overall, the rates of ESBL producers are higher in northern regions than in other parts of Taiwan. In addition, the genotypes of ESBL vary according to different Enterobacterales. SHV-type ESBLs (SHV-5 and SHV-12) were the major types of Enterobacter cloacae complex, but Serratia marcescens, Proteus mirabilis, Escherichia coli, and Klebsiella pneumoniae were more likely to possess CTX-M-type ESBLs (CTX-M-3 and CTX-M-14). Moreover, a clonal sequence type of O25b-ST131 has been emerging among urinary or bloodstream E. coli isolates in the community in Taiwan, and this clone was potentially associated with virulence, ESBL (CTX-M-15) production, ciprofloxacin resistance, and mortality. Finally, the evolution of the genetic traits of the ESBL-producing Enterobacterales isolates helps us confirm the interhospital and intrahospital clonal dissemination in several regions of Taiwan. In conclusion, continuous surveillance in the investigation of ESBL production among Enterobacterales is needed to establish its long-term epidemiology.
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Affiliation(s)
- Chien-Ming Chao
- Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying, Taiwan,Department of Dental Laboratory Technology, Min-Hwei College of Health Care Management, Tainan, Taiwan
| | - Chih-Cheng Lai
- Division of Hospital Medicine, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Wen-Liang Yu
- Department of Intensive Care Medicine, Chi Mei Medical Center, Tainan, Taiwan,Department of Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan,*Correspondence: Wen-Liang Yu,
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3
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Sundaresan AK, Vincent K, Mohan GBM, Ramakrishnan J. Association of Sequence types, Antimicrobial Resistance and Virulence Genes in Indian isolates of Klebsiella pneumoniae: A Comparative Genomics Study. J Glob Antimicrob Resist 2022; 30:431-441. [DOI: 10.1016/j.jgar.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 10/18/2022] Open
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Samir A, Abdel-Moein KA, Zaher HM. The Public Health Burden of Virulent Extended-Spectrum β-Lactamase-Producing Klebsiella pneumoniae Strains Isolated from Diseased Horses. Vector Borne Zoonotic Dis 2022; 22:217-224. [PMID: 35394385 DOI: 10.1089/vbz.2022.0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: Klebsiella pneumoniae has been associated with both nosocomial and community-acquired infections with mounting public health concern throughout the world. The purpose of this study was to investigate the burden of virulent extended-spectrum β-lactamase (ESBL)-producing K. pneumoniae among diarrheic horses or those with respiratory illness to underscore the public health implication of such strains. Materials and Methods: Rectal and nasal swabs were gathered from 100 diseased horses (50 diarrheic and 50 with respiratory illness). The collected swabs were processed for isolation of ESBL-producing K. pneumoniae using a selective medium followed by phenotypic and molecular identification of the isolates. All ESBL-producing K. pneumoniae strains were investigated for six virulence genes (type 3 fimbrial adhesin [mrkD], enterobactin [entB], regulator of mucoid phenotype A [rmpA], Klebsiella ferric iron uptake [kfu], mucoviscosity-associated gene A [magA], and type 2 capsular polysaccharide [K2]). Results: Of the 100 examined animals, ESBL-producing K. pneumoniae was recovered from 13 (13%), with isolation rates in horses suffering from diarrhea and respiratory illness being 20% and 6%, respectively. Among the obtained isolates, bla TEM and bla SHV were found in all strains (100%) followed by bla CTX-M in 92.3%, while none of the isolates had bla OXA. In addition, 13 ESBL-producing K. pneumoniae strains exhibited a multidrug resistance (MDR) pattern. Regarding the occurrence of virulence genes among the isolates, mrkD (100%) and entB (100%) were the most predominant virulence genes followed by rmpA (76.9%) and kfu (46.2%). On the contrary, magA and K2 were negative in all ESBL-producing strains. Furthermore, this work provides four K. pneumoniae mrkD partial sequences that displayed high genetic relatedness with those obtained from human to clarify the public health burden of such isolates. Conclusion: The occurrence of virulent ESBL-producing K. pneumoniae among diseased horses highlights the potential role of this animal in the epidemiology of such virulent and antimicrobial-resistant strains, which may have great public health threat.
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Affiliation(s)
- Ahmed Samir
- Department of Microbiology and Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Khaled A Abdel-Moein
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Hala M Zaher
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
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Andrade NL, da Cruz Campos AC, Cabral AM, Damasco PH, Lo-Ten-Foe J, Rosa ACP, Damasco PV. Infective endocarditis caused by Enterobacteriaceae: phenotypic and molecular characterization of Escherichia coli and Klebsiella pneumoniae in Rio de Janeiro, Brazil. Braz J Microbiol 2021; 52:1887-1896. [PMID: 34549374 PMCID: PMC8578509 DOI: 10.1007/s42770-021-00528-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 05/12/2021] [Indexed: 12/16/2022] Open
Abstract
The etiological agent for infective endocarditis (IE), a life-threatening disease, is usually gram-positive bacteria. However, gram-negative bacteria can rarely cause IE and 4% of cases are associated with morbidity and mortality. This study aimed to characterize Escherichia coli and Klebsiella pneumoniae isolates from the blood of patients with IE. The characteristics of blood isolates were compared with those of urinary isolates from patients with urinary tract infections (UTIs). The results of this study revealed that K. pneumoniae isolates from patients with IE were phylogenetically related to those from patients with UTI. Additionally, the resistance phenotype, resistance gene, virulence gene, and plasmid profiles were similar between the blood and urinary isolates. The isolates belonging to the sequence types (STs) 76, 36, 101 (K. pneumoniae), and 69 (E. coli) are reported to be associated with drug resistance. The Enterobacteriaceae isolates from patients with IE did not produce extended-spectrum β-lactamase or carbapenemase. Additionally, this study investigated the virulence phenotype, biofilm formation ability, and the ability to adhere to the epithelial cells in vitro of the isolates. The isolates from patients with IE exhibited weaker biofilm formation ability than the urinary isolates. All isolates from patients with IE could adhere to the renal epithelial cells. However, three isolates from patients with UTIs could not adhere to the epithelial cells. The closely related K. pneumoniae isolates (648, KP1, KP2, KP3, and KP4) could not form biofilms or adhere to the epithelial cells. In summary, the molecular analysis revealed that the genetic characteristics of IE-causing K. pneumoniae and E. coli were similar to those of UTI-causing isolates. These isolates belonged to the STs that are considered treatable. Genetically similar isolates did not exhibit the same virulence phenotype. Thus, these non-hypervirulent clones must be monitored as they can cause complex infections in susceptible hosts.
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Affiliation(s)
- Nathália L Andrade
- Department of Microbiology, Immunology and Parasitology, Biomedical Center, Rio de Janeiro State University, Blv 28 de Setembro, 87, 3th floor, Vila Isabel, Rio de Janeiro, Brazil
| | - Ana Carolina da Cruz Campos
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, EB80 Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
| | - Andrea Maria Cabral
- Pedro Ernesto University Hospital, Rio de Janeiro State University, Vila Isabel, Rio de Janeiro, Brazil
| | | | - Jerome Lo-Ten-Foe
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, EB80 Hanzeplein 1, 9713, GZ, Groningen, The Netherlands
| | - Ana Cláudia P Rosa
- Department of Microbiology, Immunology and Parasitology, Biomedical Center, Rio de Janeiro State University, Blv 28 de Setembro, 87, 3th floor, Vila Isabel, Rio de Janeiro, Brazil
| | - Paulo V Damasco
- Pedro Ernesto University Hospital, Rio de Janeiro State University, Vila Isabel, Rio de Janeiro, Brazil.,Department of Infectious and Parasitic Diseases, Graffrée e Guinle University Hospital, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Zeng Y, Jiang L, Lu Y, Wang Z, Song K, Shen H, Feng S. Peritoneal dialysis-related peritonitis caused by gram-negative organisms: ten-years experience in a single center. Ren Fail 2021; 43:993-1003. [PMID: 34157941 PMCID: PMC8237835 DOI: 10.1080/0886022x.2021.1939050] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Objectives Concerns are increasing about the clinical characteristics of gram- negative bacterial peritonitis for providing reference for clinical diagnosis, treatment and prevention. Methods A retrospective analysis was performed examining patients who developed peritoneal dialysis-related peritonitis (PDRP) from 1 January 2009 to 31 December 2018. Results Among 898 PD patients, 677 episodes of peritonitis occurred in 344 patients. Over 10 years, the proportion of gram-negative bacterial peritonitis increased from 0% to 26.15% (p = .045). E. coli was the leading cause (38.51%) of the 148 cases of gram-negative bacterial peritonitis. The increase of E. coli peritonitis between the first 5 and the last 5 years was obvious (20.45% vs. 46.15%). The antimicrobial sensitivity of gram-negative organisms to cefotaxime decreased from 71.43% to 55.84% (p = .017). In the gram-negative group, the effluent white cell count (WCC) on the first day was larger (OR: 1.374;95%CI: 1.248–1.563; p < .001), the time required for the WCC to normalize was longer (OR: 1.100;95%CI: 1.037–1.189; p = .003), and the level of C-reactive protein (CRP) was higher (OR: 1.038;95%CI: 1.026–1.042; p < .001) than those in the gram-positive group. The complete cure rate and treatment failure rate of gram-negative bacteria peritonitis were 87.8% and 12.2% respectively. Conclusions Over 10 years, the proportion of gram-negative bacterial peritonitis increased, with E. coli epidermidis being the most common pathogen. More effluent WCC on the first day, longer time required for the WCC to normalize, and higher level of CRP are more common for gram-negative bacterial peritonitis. Prognosis of gram-negative bacterial peritonitis is worse.
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Affiliation(s)
- Ying Zeng
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Linsen Jiang
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Ying Lu
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Zhi Wang
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Kai Song
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Huaying Shen
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Sheng Feng
- Department of Nephrology, The Second Affiliated Hospital of Soochow University, Suzhou, P.R. China
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Pindi G, Kawle V, Sunkara RR, Darbha MS, Garikaparthi S. Continuous ambulatory peritoneal dialysis peritonitis: Microbiology and outcomes. Indian J Med Microbiol 2020; 38:72-77. [PMID: 32719212 DOI: 10.4103/ijmm.ijmm_20_251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Context Continuous ambulatory peritoneal dialysis (CAPD) is now a preferred mode of the treatment in patients with end-stage renal disease, but peritonitis remains to be a shortcoming of CAPD. High-culture negativity, emerging drug resistance and peritoneal dialysis (PD)-related morbidity and mortality have been a challenge to tackle. Aims The present study was taken up to compare the the various culture methods and to identify the spectrum of organisms causing CAPD peritonitis and their outcome. Settings and Design A prospective, observational, cross-sectional study was conducted at a tertiary care teaching hospital in Hyderabad over a period of 1 year. Subjects and Methods Dialysate fluid from 100 episodes of clinically suspected peritonitis in 75 patients was processed by conventional centrifuging, water lysis, direct inoculation and addition of centrifuged pellet into brain-heart infusion broth and by automated blood culture system. Identification and antibiotic susceptibility of organisms was done, and the outcome of PD-related peritonitis was analysed. Statistical Analysis Used The categorical data and continuous data were analysed using the Chi-square test and Student's t-test, respectively. P < 0.05 was considered statistically significant. Results Of the 100 PD fluids, 87 were culture positive. Automated blood culture systems detected 87 episodes, whereas conventional centrifuge method detected only 53 episodes (P = 0.00001). Peritonitis due to Gram-negative organisms (62.3%) was higher than that of Gram-positive peritonitis (31.1%) and fungi (6.4%). Nineteen per cent episodes were constituted by relapse (9), refractory (4), recurrent (4) and repeat (2) peritonitis. Outcomes were analysed as recovery (77%), catheter removal (15%) and death (2.6%). Conclusions Direct inoculation of peritoneal fluid into automated blood culture bottles increases the positivity rate and also aids in the early detection of CAPD peritonitis, helping reduce morbidity and mortality of PD patients.
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Affiliation(s)
- Girisha Pindi
- Department of Clinical Microbiology, Osmania General Hospital, Hyderabad, Telangana, India
| | - Vijendra Kawle
- Department of Clinical Microbiology, Osmania General Hospital, Hyderabad, Telangana, India
| | - Rajeshwar Rao Sunkara
- Department of Clinical Microbiology, Osmania General Hospital, Hyderabad, Telangana, India
| | | | - Sasikala Garikaparthi
- Department of Clinical Microbiology, Osmania General Hospital, Hyderabad, Telangana, India
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Wu G, Ji H, Guo X, Li Y, Ren T, Dong H, Liu J, Liu Y, Shi X, He B. Nanoparticle reinforced bacterial outer-membrane vesicles effectively prevent fatal infection of carbapenem-resistant Klebsiella pneumoniae. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102148. [PMID: 31887427 DOI: 10.1016/j.nano.2019.102148] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/27/2019] [Accepted: 12/17/2019] [Indexed: 12/17/2022]
Abstract
Infection resulting from carbapenem-resistant Klebsiella pneumoniae (CRKP) is an intractable clinical problem. Outer membrane vesicles (OMVs) from CRKP are believed to be potential vaccine candidates. However, their immune response remains elusive due to low structural stability and poor size homogeneity. In this study, hollow OMVs were reinforced internally by size-controlled BSA nanoparticles to obtain uniform and stable vaccines through hydrophobic interaction. The result showed that the BSA-OMV nanoparticles (BN-OMVs) were homogenous with a size around 100 nm and exhibited a core-shell structure. Remarkably, subcutaneous BN-OMVs vaccination mediated significantly higher CRKP specific antibody titers. The survival rate of the mice infected with a lethal dose of CRKP was increased significantly after BN-OMV immunization. The adoptive transfer experiment demonstrated that the protective effect of BN-OMVs was dependent on humoral and cellular immunity. This study demonstrated that the structure optimization improved the immune efficacy of OMVs for vaccine development against CRKP.
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Affiliation(s)
- Guangxi Wu
- Department of Anesthesiology and SICU, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haiying Ji
- Department of Anesthesiology and SICU, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoyu Guo
- Department of Anesthesiology and SICU, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongyong Li
- Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Tianbin Ren
- Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Haiqing Dong
- Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Jingxian Liu
- Department of Clinical Laboratory, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiqiong Liu
- Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Xueyin Shi
- Department of Anesthesiology and SICU, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Bin He
- Department of Anesthesiology and SICU, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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CelB is a suitable marker for rapid and specific identification of Klebsiella pneumoniae by the loop-mediated isothermal amplification (LAMP) assay. Braz J Microbiol 2019; 50:961-967. [PMID: 31456171 DOI: 10.1007/s42770-019-00144-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 08/15/2019] [Indexed: 01/20/2023] Open
Abstract
Klebsiella pneumoniae belongs to Enterobacteriaceae, which is the commonest bacterium causing nosocomial respiratory tract infection. It ranks second in bacteremia and urinary tract infection in gram-negative bacteria. Therefore, the rapid and accurate identification of K. pneumoniae was of great significance for the guide of clinical medication, and timely treatment of patients. The purpose of this study was to establish a rapid and sensitive molecular detection method for K. pneumoniae based on loop-mediated isothermal amplification (LAMP) technology. Firstly, local BLAST and NCBI BLAST were used to analyze the genome of K. pneumoniae. According to the principle of interspecific and intraspecific specificity, CelB (GenBank ID 11847805) was selected as the specific gene. Then, the LAMP and PCR identification systems were established with this target gene. Thirty-six clinical isolates of K. pneumoniae and 50 non-K. pneumoniae were used for the specific evaluation, and both LAMP and PCR could specifically distinguish K. pneumoniae from non-K. pneumoniae. A 10-fold series diluted positive plasmids and simulated infected blood samples were used as the templates in the sensitivity assay, and the results showed that the sensitivity could reach 1 copy/reaction. In summary, a rapid, specific, and sensitive LAMP method was established to detect K. pneumoniae in clinics.
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Microbiology of peritoneal dialysis-related infection and factors of refractory peritoneal dialysis related peritonitis: A ten-year single-center study in Taiwan. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2019; 52:752-759. [PMID: 30665844 DOI: 10.1016/j.jmii.2018.10.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 10/28/2018] [Accepted: 10/30/2018] [Indexed: 11/20/2022]
Abstract
BACKGROUND Peritoneal dialysis (PD)-related infection is a serious complication of patients with PD. Refractory peritonitis may lead to failure of PD, shift to hemodialysis (HD) or death. Besides, microbiologic resistance increased worldwide that might impact the treatment choice for such infections. Investigating the causative pathogens and risk factors of PD-related infections in Taiwan was warranted. METHODS This is a retrospective study involving patients with PD from 2007 to 2016 in a southern Taiwan hospital. Patient characteristics, microbiological data, outcomes, and factors associated with refractory peritonitis were analyzed. RESULTS There were 190 episodes of PD-related peritonitis in 110 patients from this cohort. Gram-positive organisms were the leading cause of PD-related peritonitis, but gram-negative organisms, esp. Pseudomonas aeruginosa, were predominant for exit site infection and tunnel infection. The incidence of peritonitis was 0.25 episode per patient-year (1 episode per 47.69 months). The refractory rate was 14.2% (27/190). Methicillin resistance was noted in 2 (13.3%) of 15 Staphylococcus aureus isolates. Of 114 isolates, 72.8% (83) were susceptible to either cefazolin or gentamicin. Staphylococcus spp. and Escherichia coli infections were significantly associated with refractory peritonitis. Baseline hyponatremia (<130 mmol/L) was independently associated with refractory peritonitis. CONCLUSION Gram-positive organisms remained major cause of PD-related peritonitis. About three quarters of causative pathogens were susceptible to the recommended empirical treatment for PD-related peritonitis. Baseline hyponatremia (<130 mmol/L) was independently associated with refractory peritonitis. Staphylococcus spp. and E. coli infections had important roles for refractory peritonitis.
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Lin WH, Tseng CC, Wu AB, Chang YT, Kuo TH, Chao JY, Wang MC, Wu JJ. Clinical and microbiological characteristics of peritoneal dialysis-related peritonitis caused by Escherichia coli in southern Taiwan. Eur J Clin Microbiol Infect Dis 2018; 37:1699-1707. [PMID: 29931659 DOI: 10.1007/s10096-018-3302-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/11/2018] [Indexed: 12/11/2022]
Abstract
Peritonitis is a serious complication and major cause of treatment failure in patients undergoing peritoneal dialysis (PD). Escherichia coli is the major pathogen in extraintestinal Gram-negative infections, including PD-related peritonitis. The outcomes of E. coli peritonitis in PD varied from relatively favorable outcomes to a higher incidence of treatment failure. The aim of this study was to investigate the impact of bacterial virulence and host characteristics on the outcomes of PD-related peritonitis caused by E. coli. From January 2000 to June 2016, a total of 47 episodes of monomicrobial and 10 episodes of polymicrobial E. coli PD-related peritonitis, as well as 89 episodes of monomicrobial Gram-positive (56 Staphylococcus spp. and 33 Streptococcus spp.) PD-related peritonitis cases, were retrospectively enrolled. Clinical features, E. coli bacterial virulence, and outcomes were analyzed. Compared to Streptococcus spp. peritonitis, E. coli peritonitis had a higher peritoneal catheter removal rate (38 versus 12%; P = 0.0115). Compared to the monomicrobial group, patients in polymicrobial group were older and had higher peritoneal catheter removal rate (80 versus 38%; P = 0.0324). Treatment failure of E. coli peritonitis was associated with more polymicrobial peritonitis and immunocompromised comorbidity, longer duration of PD therapy, and more antimicrobial resistance. E. coli isolates with more iron-related genes had higher prevalence of phylogenetic group B2 and papG II, iha, ompT, and usp genes. This study demonstrates the important roles of clinical and bacterial characteristics in the outcomes of monomicrobial and polymicrobial E. coli PD-related peritonitis.
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Affiliation(s)
- Wei-Hung Lin
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chin-Chung Tseng
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan
| | - An-Bang Wu
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan
| | - Yu-Tzu Chang
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan
| | - Te-Hui Kuo
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan
| | - Jo-Yen Chao
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan
| | - Ming-Cheng Wang
- Division of Nephrology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng-Li Road, Tainan, 70428, Taiwan. .,Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Jiunn-Jong Wu
- Department of Biotechnology and Laboratory Science in Medicine, School of Biomedical Science and Engineering, National Yang Ming University, No. 155, Section 2, Li-Nong Street, Taipei, 11221, Taiwan.
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Yang TY, Lu PL, Tseng SP. Update on fosfomycin-modified genes in Enterobacteriaceae. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 52:9-21. [PMID: 29198952 DOI: 10.1016/j.jmii.2017.10.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/17/2017] [Accepted: 10/09/2017] [Indexed: 11/29/2022]
Abstract
The long-used antibiotic fosfomycin has recently been re-evaluated as a potential regimen for treating extended-spectrum β-lactamases (ESBLs) and carbapenem-resistant Enterobacteriaceae (CRE). Fosfomycin is known for its robust bactericidal effect against ESBL-producing Enterobacteriaceae and CRE. However, fosfomycin-modified genes have been reported in transposon elements and conjugative plasmids, resulting in fosfomycin resistance in parts of East Asia. Here we review reports of fosfomycin-modified (fos) genes in Enterobacteriaceae and assess the efficacy of fosfomycin against multidrug-resistant Enterobacteriaceae infections. At least 10 kinds of fos genes have been identified in the past decade; of these, fosA (and fosA subtypes) and fosC2 are primarily found in Enterobacteriaceae. All fosA subtypes except fosA2 are found in plasmids and transposons, nearby insertion sequence elements, or integrons, indicating that mobilizing elements also play an important role in plasmid-mediated fos genes in Enterobacteriaceae. fosA3, which is prevalent in East Asia, has been transmitted (mostly by animals) within and across continents via IS26 mobile elements. The acquisition of multiple antibiotic resistance genes via plasmids and mobile elements has resulted in a need for combined treatments for Enterobacteriaceae cases. The combination of fosfomycin and carbapenem has been the focus of many in vitro studies, but there is a clear need for additional in vivo investigations involving pharmacokinetics.
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Affiliation(s)
- Tsung-Ying Yang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Liang Lu
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sung-Pin Tseng
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.
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Tseng SP, Wang SF, Ma L, Wang TY, Yang TY, Siu LK, Chuang YC, Lee PS, Wang JT, Wu TL, Lin JC, Lu PL. The plasmid-mediated fosfomycin resistance determinants and synergy of fosfomycin and meropenem in carbapenem-resistant Klebsiella pneumoniae isolates in Taiwan. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 50:653-661. [PMID: 28705769 DOI: 10.1016/j.jmii.2017.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/13/2017] [Accepted: 03/13/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Epidemiology of fosfomycin susceptibility and the plasmid-mediated fosfomycinase genes of carbapenem-resistant Klebsiella pneumoniae (CRKP) isolates in Taiwan remain unclear. METHODS 642 CRKP clinical isolates were collected from a nation-wide surveillance study (16 hospitals) in Taiwan in 2012-2013. Antimicrobial susceptibilities were determined. PFGE and MLST determined the clonal relatedness. Carbapenemases and fosfomycinases genes were detected by PCR, and their flanking regions were determined by PCR and sequencing. Synergistic activity of meropenem with fosfomycin was examined by the checkerboard method. RESULTS In total, 36.4% (234/642) of CRKP isolates in Taiwan were resistant to fosfomycin. Among 234 fosfomycin-resistant CRKP isolates, PFGE analysis revealed 81 pulsotypes. Pulsotype XXIII (n = 63) was predominant and belonged to ST11. 71 had carbapnemases (65 blaKPC-2-positive, 1 blaVIM-1-positive and 5 blaIMP-8-positive) and 62 had fosfomycinases (35 fosA3-positive and 27 foskp96-positive). Only 18.5% (5/27) of foskp96-positive isolates carried foskp96 and blaKPC-2, while 71.4% (25/35) of fosA3-positive isolates contained fosA3 and blaKPC-2. There were five types of flanking sequences for fosA3, and 85.7% (30/35) of fosA3 genes were flanked by IS26, suggesting possible horizontal gene transfer. Synergistic effect of fosfomycin and meropenem was observed in all 25 randomly selected pulsotype XXIII strains (100%; 25/25), even those containing fosfomycinase (48%, 12/25) or carbapnemase (96%, 24/25). CONCLUSIONS A clone (pulsotype XXIII, ST11) has been found to be prevailing among fosfomycin-resistant CRKP in Taiwan. According to the in vitro data, the combination of fosfomycin and meropenem is a potentially alternative choice.
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Affiliation(s)
- Sung-Pin Tseng
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Sheng-Fan Wang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ling Ma
- National Institutes of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Ting-Yin Wang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tsung-Ying Yang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - L Kristopher Siu
- National Institutes of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
| | - Yin-Ching Chuang
- Department of Internal Medicine and Medical Research, Chi Mei Medical Center, Tainan, Taiwan; Department of Internal Medicine, Chi Mei Medical Center, Liouying, Tainan, Taiwan
| | - Pei-Shan Lee
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jann-Tay Wang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Tsu-Lan Wu
- Department of Clinical Pathology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Jung-Chung Lin
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Po-Liang Lu
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Yang HS, Fang WL, Lin YT. A case of liver abscess caused by tigecycline-nonsusceptible Klebsiella pneumoniae. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2016; 49:621-2. [DOI: 10.1016/j.jmii.2016.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/19/2016] [Accepted: 04/25/2016] [Indexed: 11/29/2022]
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Li PKT, Szeto CC, Piraino B, de Arteaga J, Fan S, Figueiredo AE, Fish DN, Goffin E, Kim YL, Salzer W, Struijk DG, Teitelbaum I, Johnson DW. ISPD Peritonitis Recommendations: 2016 Update on Prevention and Treatment. Perit Dial Int 2016; 36:481-508. [PMID: 27282851 PMCID: PMC5033625 DOI: 10.3747/pdi.2016.00078] [Citation(s) in RCA: 619] [Impact Index Per Article: 77.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 05/04/2016] [Indexed: 12/19/2022] Open
Affiliation(s)
- Philip Kam-Tao Li
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Cheuk Chun Szeto
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Beth Piraino
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Javier de Arteaga
- Department of Nephrology, Hospital Privado and Catholic University, Cordoba, Argentina
| | - Stanley Fan
- Department of Renal Medicine and Transplantation, Barts Health NHS Trust, London, UK
| | - Ana E Figueiredo
- Nursing School-FAENFI, Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Douglas N Fish
- Department of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Eric Goffin
- Department of Nephrology, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Belgium
| | - Yong-Lim Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Clinical Research Center for End Stage Renal Disease, Daegu, Korea
| | - William Salzer
- University of Missouri-Columbia School of Medicine, Department of Internal Medicine, Section of Infectious Disease, MI, USA
| | - Dirk G Struijk
- Department of Nephrology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | | | - David W Johnson
- Department of Nephrology, University of Queensland at Princess Alexandra Hospital, Brisbane, Australia
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Vaccination with Klebsiella pneumoniae-derived extracellular vesicles protects against bacteria-induced lethality via both humoral and cellular immunity. Exp Mol Med 2015; 47:e183. [PMID: 26358222 PMCID: PMC4650931 DOI: 10.1038/emm.2015.59] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 05/20/2015] [Accepted: 05/22/2015] [Indexed: 12/30/2022] Open
Abstract
The emergence of multidrug-resistant Klebsiella pneumoniae highlights the need to develop preventive measures to ameliorate Klebsiella infections. Bacteria-derived extracellular vesicles (EVs) are spherical nanometer-sized proteolipids enriched with outer membrane proteins. Gram-negative bacteria-derived EVs have gained interest for use as nonliving complex vaccines. In the present study, we evaluated whether K. pneumoniae-derived EVs confer protection against bacteria-induced lethality. K. pneumoniae-derived EVs isolated from in vitro bacterial culture supernatants induced innate immunity, including the upregulation of co-stimulatory molecule expression and proinflammatory mediator production. EV vaccination via the intraperitoneal route elicited EV-reactive antibodies and interferon-gamma-producing T-cell responses. Three vaccinations with the EVs prevented bacteria-induced lethality. As verified by sera and splenocytes adoptive transfer, the protective effect of EV vaccination was dependent on both humoral and cellular immunity. Taken together, these findings suggest that K. pneumoniae-derived EVs are a novel vaccine candidate against K. pneumoniae infections.
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