1
|
Ben-Amram H, Azrad M, Cohen-Assodi J, Sharabi-Nov A, Edelstein S, Agay-Shay K, Peretz A. Biofilm Formation by Hospital-Acquired Resistant Bacteria Isolated from Respiratory Samples. J Epidemiol Glob Health 2024; 14:291-297. [PMID: 38564110 PMCID: PMC11176280 DOI: 10.1007/s44197-024-00215-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Hospital-acquired resistant infections (HARI) are infections, which develop 48 h or more after admission to a healthcare facility. HARI pose a considerably acute challenge, due to limited treatment options. These infections are associated bacterial biofilms, which act as a physical barrier to diverse external stresses, such as desiccation, antimicrobials and biocides. We assessed the influence of multiple factors on biofilm production by HARI -associated bacteria. METHODS Bacteria were isolated from samples of patients with respiratory HARI who were hospitalized during 2020-2022 in north Israel. Following antibiotic susceptibility testing by disc diffusion or broth microdilution, biofilm formation capacities of resistant bacteria (methicillin-resistant staphylococcus aureus, extended spectrum beta-lactamase-producing Escherichia coli and Klebsiela pneumonia, and multidrug-resistant Pseudomonas aeruginosa and Acinetobacter baumannii) was assessed using the crystalline violet staining method. Data regarding season, time to infection, bacterial species, patient age and gender, year, and medical department were collected from the patient medical records. RESULTS Among the 226 study isolates, K. pneumonia was the most prevalent (35.4%) bacteria, followed by P. aeruginosa (23.5%), and methicillin-resistant staphylococcus aureus (MRSA) (21.7%). A significantly higher rate of HARI was documented in 2022 compared to 2020-2021. The majority of isolates (63.3%) were strong biofilm producers, with K. pneumonia (50.3%) being most dominant, followed by P. aeruginosa (29.4%). Biofilm production strength was significantly affected by seasonality and hospitalization length, with strong biofilm production in autumn and in cases where hospitalization length exceeded 30 days. CONCLUSION Biofilm production by HARI bacteria is influenced by bacterial species, season and hospitalization length.
Collapse
Affiliation(s)
- Hila Ben-Amram
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- The Clinical Microbiology Laboratory, Ziv Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | - Maya Azrad
- The Clinical Microbiology Laboratory, Tzafon Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | - Jackie Cohen-Assodi
- The Clinical Microbiology Laboratory, Ziv Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | | | - Shimon Edelstein
- The Infectious Diseases, Ziv Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, 1311502, Safed, Israel
| | - Keren Agay-Shay
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Avi Peretz
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel.
- The Clinical Microbiology Laboratory, Tzafon Medical Center, Affiliated with Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel.
| |
Collapse
|
2
|
Chen X, Jiang Z, Chen R, Zhu Z, Wu Y, Sun Z, Chen L. Nosocomial outbreak of colistin-resistant, carbapenemase-producing Klebsiella pneumoniae ST11 in a medical intensive care unit. J Glob Antimicrob Resist 2024; 36:436-443. [PMID: 37931688 DOI: 10.1016/j.jgar.2023.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 10/07/2023] [Accepted: 10/22/2023] [Indexed: 11/08/2023] Open
Abstract
OBJECTIVES Klebsiella pneumoniae is an important opportunistic Gram-negative pathogen. This study describes an outbreak due to colistin-resistant and carbapenem-resistant Klebsiella pneumoniae (ColR-CRKP) in a tertiary hospital related to six patients successively admitted to the department of medical intensive care unit (MICU) between March 11 and April 29, 2021. METHODS Phenotypic characterization was conducted on 16 ColR-CRKP strains obtained from six infected patients and five ColR-CRKP strains isolated from 48 environmental samples, followed by whole-genome sequencing (WGS) and polymerase chain reaction (PCR) analysis. RESULTS All ColR-CRKP strains showed resistance to commonly used antibiotics. Whole-genome sequencing revealed a variety of resistance genes such as blaKPC-2, blaCTX-M-65, and blaTEM-4 present in all strains, which is consistent with their antimicrobial resistance profile. All isolates were identified as the high-risk sequence type 11 (ST11) clonal lineage by multilocus sequencing typing (MLST) and subsequently clustered into a single clonal type by core genome MLST (cgMLST). IS5-like element ISKpn26 family transposase insertion mutations at positions 74 nucleotides in the mgrB gene were the main cause of colistin resistance in these ColR-CRKP. The variations of genes were verified by PCR. SCOTTI analysis demonstrated the transmission pathway of the ColR-CRKP between the patients. CONCLUSION Our study highlights the importance of coordinated efforts between clinical microbiologists and infection control teams to implement aggressive surveillance cultures and proper bacterial genotyping to diagnose nosocomial infections and take control measures. Routine surveillance and the use of advanced sequencing technologies should be implemented to enhance nosocomial infection control and prevention measures.
Collapse
Affiliation(s)
- Xi Chen
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China
| | - Zhihui Jiang
- Department of Pharmacy, General Hospital of Southern Theater Command, Guangzhou, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Rui Chen
- Department of Medical Intensive Care Unit, General Hospital of Southern Theater Command, Guangzhou, China
| | - Zijing Zhu
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China
| | - Yixue Wu
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China
| | - Zhaohui Sun
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China; The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.
| | - Lidan Chen
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China; Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China.
| |
Collapse
|
3
|
Guo B, Li P, Qin B, Wang S, Zhang W, Shi Y, Yang J, Niu J, Chen S, Chen X, Cui L, Fu Q, Guo L, Hou Z, Li H, Li X, Liu R, Liu X, Mao Z, Niu X, Qin C, Song X, Sun R, Sun T, Wang D, Wang Y, Xu L, Xu X, Yang Y, Zhang B, Zhou D, Li Z, Chen Y, Jin Y, Du J, Shao H. An analysis of differences in Carbapenem-resistant Enterobacterales in different regions: a multicenter cross-sectional study. BMC Infect Dis 2024; 24:116. [PMID: 38254025 PMCID: PMC10804584 DOI: 10.1186/s12879-024-09005-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
OBJECTIVE This study aimed to explore the characteristics of carbapenem-resistant Enterobacterales (CRE) patients in the intensive care unit (ICU) in different regions of Henan Province to provide evidence for the targeted prevention and treatment of CRE. METHODS This was a cross-sectional study. CRE screening was conducted in the ICUs of 78 hospitals in Henan Province, China, on March 10, 2021. The patients were divided into provincial capital hospitals and nonprovincial capital hospitals for comparative analysis. RESULTS This study involved 1009 patients in total, of whom 241 were CRE-positive patients, 92 were in the provincial capital hospital and 149 were in the nonprovincial capital hospital. Provincial capital hospitals had a higher rate of CRE positivity, and there was a significant difference in the rate of CRE positivity between the two groups. The body temperature; immunosuppressed state; transfer from the ICU to other hospitals; and use of enemas, arterial catheters, carbapenems, or tigecycline at the provincial capital hospital were greater than those at the nonprovincial capital hospital (P < 0.05). However, there was no significant difference in the distribution of carbapenemase strains or enzymes between the two groups. CONCLUSIONS The detection rate of CRE was significantly greater in provincial capital hospitals than in nonprovincial capital hospitals. The source of the patients, invasive procedures, and use of advanced antibiotics may account for the differences. Carbapenem-resistant Klebsiella pneumoniae (CR-KPN) was the most prevalent strain. Klebsiella pneumoniae carbapenemase (KPC) was the predominant carbapenemase enzyme. The distributions of carbapenemase strains and enzymes were similar in different regions.
Collapse
Affiliation(s)
- Bo Guo
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Peili Li
- Department of Public Utilities Development, Henan Provincial People's Hospital, Zhengzhou, China
| | - Bingyu Qin
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Shanmei Wang
- Department of Microbiology Laboratory, Henan Provincial People's Hospital, Zhengzhou, China
| | - Wenxiao Zhang
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Yuan Shi
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Jianxu Yang
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Jingjing Niu
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Shifeng Chen
- Department of Critical Care Medicine, The Second People's Hospital of Pingdingshan City, Pingdingshan, China
| | - Xiao Chen
- Department of Critical Care Medicine, Nanyang Nanshi Hospital, Nanyang, China
| | - Lin Cui
- Department of Critical Care Medicine, Yellow River Central Hospital, Zhengzhou, China
| | - Qizhi Fu
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Lin Guo
- Department of Critical Care Medicine, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Zhe Hou
- Department of Critical Care Medicine, Zhengzhou Orthopedic Hospital, Zhengzhou, China
| | - Hua Li
- Department of Critical Care Medicine, Henan Provincial Hospital of Traditional Chinese Medicine, Zhengzhou, China
| | - Xiaohui Li
- Department of Critical Care Medicine, Fuwai Central China Cardiovascular Hospital, Zhengzhou, China
| | - Ruifang Liu
- Department of Critical Care Medicine, The Third People's Hospital of Henan Province, Zhengzhou, China
| | - Xiaojun Liu
- Department of Critical Care Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhengrong Mao
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Xingguo Niu
- Department of Critical Care Medicine, Zhengzhou People's Hospital, Zhengzhou, 450000, China
| | - Chao Qin
- Department of Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xianrong Song
- Department of Critical Care Medicine, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Rongqing Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwen Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Daoxie Wang
- Department of Critical Care Medicine, The Third People's Hospital of Zhengzhou, Zhengzhou, China
| | - Yong Wang
- Department of Critical Care Medicine, Huaihe Hospital of Henan University, Kaifeng, China
| | - Lanjuan Xu
- Department of Critical Care Medicine, Zhengzhou Central Hospital, Zhengzhou, China
| | - Xin Xu
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Yuejie Yang
- Department of Critical Care Medicine, The Sixth People's Hospital of Zhengzhou, Zhengzhou, China
| | - Baoquan Zhang
- Department of Critical Care Medicine, The Third Affiliated Hospital of Xinxiang Medical College, Xinxiang, China
| | - Dongmin Zhou
- Department of Critical Care Medicine, Henan Cancer Hospital, Zhengzhou, China
| | - Zhaozhen Li
- Department of Critical Care Medicine, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Yinyin Chen
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Yue Jin
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Juan Du
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Huanzhang Shao
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China.
| |
Collapse
|
4
|
Bar Ilan M, Kjerulf A. Who should be screened for carbapenemase-producing Enterobacterales and when? A systematic review. J Hosp Infect 2023; 142:74-87. [PMID: 37802236 DOI: 10.1016/j.jhin.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/08/2023]
Abstract
Carbapenemase-producing Enterobacterales (CPE) cases increases every year in Denmark and the proportion of CPE-positive cases with a travel history decreases. Several epidemiological links show transmission in Danish healthcare setting indicating infection prevention and control challenges and raising questions about the Danish CPE screening protocol. The aim of this review was to identify additional risk factors to those described in the Danish CPE-screening protocol in order to detect the Danish CPE-positive patients and thereby reduce the risk of transmission and outbreaks. A systematic literature search was conducted in PubMed, Embase and Cochrane Library during March 2022. A total of 1487 articles were screened, and 19 studies were included. Retrieved studies dealt with patients with laboratory-confirmed CPE (colonization and/or infection) and associated risk factors. Antimicrobial therapy, especially broad-spectrum antimicrobial agents, prior or current hospitalization of approximately one week in ICU and 20-28 days in other wards and travel history with or without hospitalization abroad were significant risk factors associated with CPE acquisition. Comorbidities and invasive procedures were identified as risk factors, but without identifying specific comorbidities or invasive procedures associated with risk for CPE-acquisition. This study suggests the need to develop an additional algorithm for CPE-screening in Denmark. In addition to risk-based screening on admission, screening of inpatients should be considered. The screening protocol might include screening of inpatients with comorbidities who are hospitalized >1 week in ICU or >3 weeks in other wards and who have previously received or currently are receiving antibiotic treatment. Further research is needed to develop a new CPE-screening algorithm.
Collapse
Affiliation(s)
- M Bar Ilan
- Infection Prevention and Control Unit, Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark.
| | - A Kjerulf
- National Center for Infection Control, Department for Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| |
Collapse
|
5
|
Abera D, Alemu A, Mihret A, Negash AA, Abegaz WE, Cadwell K. Colonization with extended spectrum beta-lactamase and carbapenemases producing Enterobacteriaceae among hospitalized patients at the global level: A systematic review and meta-analysis. PLoS One 2023; 18:e0293528. [PMID: 38011148 PMCID: PMC10681255 DOI: 10.1371/journal.pone.0293528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 10/11/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Gut commensal bacteria can mediate resistance against pathogenic bacteria. However, exposure to antibiotics and hospitalization may facilitate the emergence of multidrug resistant bacteria. We aimed to conduct a systematic review and meta-analysis to provide comprehensive evidence about colonization rate of extended spectrum beta-lactamase and carbapenemases producing Enterobacteriaceae. METHOD We used PubMed, Google Scholar and Web of Science data bases to search studies from January 1, 2016 to August10, 2022 about colonization rate of extended spectrum beta-lactamase and carbapenemase producing Enterobacteriaceae. Data were extracted from eligible studies and analyzed using Stata version 16 software. The quality of included studies was assessed using the Joanna Briggs Institute Critical Appraisal tools, and publication bias was assessed using funnel plot and eggers test. RESULTS We identified 342 studies from the comprehensive data search and data were extracted from 20 studies. The pooled estimate of extended spectrum beta-lactamase and carbapenemase producing Enterobacteriaceae were 45.6%(95%CI: 34.11-57-10) and 16.19% (95% CI: 5.46-26.91) respectively. The predominant extended spectrum beta-lactamase producers were E. coli,32.99% (95% CI: 23.28-42.69) and K. pneumoniae, 11.43% (95% CI:7.98-14.89). Prolonged hospitalization was linked to carbapenemase producing Enterobacteriaceae colonization with the odds of 14.77 (95% CI: -1.35-30.90) at admission and 45.63 (95% CI: 0.86-92.12) after ≥7 days of admission. CONCLUSION The pooled estimate of extended spectrum beta-lactamase and carbapenemase producing Enterobacteriaceae were high. This indicates the need for strong mitigation strategies to minimize the spread of multidrug-resistant bacteria at the healthcare facilities.
Collapse
Affiliation(s)
- Dessie Abera
- Department of Medical Laboratory Sciences, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Microbiology, Immunology and Parasitology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ayinalem Alemu
- Ethiopian Public Health Institute, Addis Ababa, Ethiopia
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopoia
| | - Adane Mihret
- Department of Microbiology, Immunology and Parasitology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Abel Abera Negash
- Department of Microbiology, Immunology and Parasitology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Woldaregay Erku Abegaz
- Department of Microbiology, Immunology and Parasitology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ken Cadwell
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, United States of America
- Department of Medicine, Division of Gastroenterology and Hepatology, New York University Langone Health, New York, NY, United States of America
| |
Collapse
|
6
|
Ardiani EL, Hartono RK. Development of an infectious disease prevention behavior model for public health center workers in a rural area of Indonesia. J Public Health Afr 2022. [PMID: 37497147 PMCID: PMC10367035 DOI: 10.4081/jphia.2022.2405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The Infection Prevention Behavior (IPB) for health personnel at the Surade Public Health Center has not reached the target. The purpose of this study was to develop the IPB model for health personnel which is suitable to be applied in rural areas in Indonesia. The model was developed through a literature review from online journal database in the last 10 years. The model was tested using a cross-sectional design by the Structural Equation Model Partial Least Square (SEM-PLS). Six selected variables had direct and indirect influences on the IPB of health personnel. They were supervision (27.50%), facilities (9.87%), training (10.44%), compensation (16.97%), work climate (10.78%), and work motivation (8.15%). The model was valid and significant. The Q2 showed 95.7% which mean 95.7% of the components in the model could be applied to other Public Health Centers in the rural area. The development of IPB models for health personnel which wass measured from the direct and indirect effects of six variables proved valid and significant to help achievement Public Health Center reach the target of protecting health workers from infectious diseases.
Collapse
|
7
|
Agyeman WY, Bisht A, Gopinath A, Cheema AH, Chaludiya K, Khalid M, Nwosu M, Konka S, Khan S. A Systematic Review of Antibiotic Resistance Trends and Treatment Options for Hospital-Acquired Multidrug-Resistant Infections. Cureus 2022; 14:e29956. [PMID: 36381838 PMCID: PMC9635809 DOI: 10.7759/cureus.29956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022] Open
Abstract
Antimicrobial resistance is a major public health challenge described by the World Health Organization as one of the top 10 public health challenges worldwide. Drug-resistant microbes contribute significantly to morbidity and mortality in the hospital, especially in the critical care unit. The primary etiology of increasing antibiotic resistance is inappropriate and excessive use of antibiotics. The alarming rise of drug-resistant microbes worldwide threatens to erode our ability to treat infections with our current armamentarium of antibiotics. Unfortunately, the pace of development of new antibiotics by the pharmaceutical industry has not kept up with rising resistance to expand our options to treat microbial infections. The costs of antibiotic resistance include death and disability, extended hospital stays due to prolonged sickness, need for expensive therapies, rising healthcare expenditure, reduced productivity from time out of the workforce, and rising penury. This review sums up the common mechanisms, trends, and treatment options for hospital-acquired multidrug-resistant microbes.
Collapse
|
8
|
Silva BBOD, Silva M, Menezes FGD, Troster EJ. Factors associated with multidrug-resistant bacteria in healthcare-associated infections: a pediatric intensive care unit case-control study. EINSTEIN-SAO PAULO 2022; 20:eAO6704. [PMID: 35476086 PMCID: PMC9018062 DOI: 10.31744/einstein_journal/2022ao6704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 07/12/2021] [Indexed: 11/05/2022] Open
|
9
|
Association between Timing of Colonization and Risk of Developing Klebsiella pneumoniae Carbapenemase-Producing K. pneumoniae Infection in Hospitalized Patients. Microbiol Spectr 2022; 10:e0197021. [PMID: 35323035 PMCID: PMC9045231 DOI: 10.1128/spectrum.01970-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Colonization by KPC-producing Klebsiella pneumoniae (KPC-Kp) is associated with the risk of developing KPC-Kp infection. The impact of the time elapsed since a patient becomes colonized on this risk is not well known. An observational, prospective, longitudinal cohort study of colonized patients undergoing active rectal culture screening to rule out KPC-Kp colonization (July 2012 to November 2017). Patients with a positive culture at inclusion (colonized at start of follow-up) and those with a negative culture at inclusion who became colonized within 90 days (colonized during follow-up) were included in the analysis. CART analysis was used to dichotomize variables according to their association with infection. Kaplan–Meier infection-free survival curves and the log-rank test were used for group comparisons. Logistic regression was used to identify variables associated with KPC-Kp infection. Among 1310 patients included, 166 were colonized at the end of follow-up. Forty-seven out of 118 patients colonized at start of follow-up developed infection (39.8%) versus 31 out of 48 patients colonized during follow-up (64.6%; P = 0.006). Variables associated with KPC-Kp infection in the logistic regression analysis were: colonization detection during follow-up (OR, 2.74; 95% CI, 1.07 to 7.04; P = 0.03), Giannella risk score (OR, 1.51; 95% CI, 1.32 to 1.73; P < 0.001), high-risk ward (OR, 4.77; 95% CI, 1.61 to 14.10; P = 0.005) and urological manipulation after admission (OR, 3.69; 95% CI, 1.08 to 12.60; P = 0.04). In 25 out of 31 patients (80.6%) colonized during follow-up who developed KPC-Kp infection, infection appeared within 15 days after colonization. The risk of KPC-Kp infection was higher when colonization is recently acquired during hospitalization. In this prospective study, we concluded that the timing of colonization was a factor to assess when considering empirical treatment for suspected KPC-Kp infection and prophylaxis or infection control. IMPORTANCE In this study, it was confirmed that patients who became colonized during hospitalization had a higher risk of developing KPC-Kp infection than hospitalized patients who were already colonized at the start of follow-up. Besides, the risk of infection in the group of patients who became colonized during follow-up was greater in the first weeks immediately after colonization was confirmed. Our findings support the need for designing preventive strategies for patients at the highest risk of infection development, including those admitted in high-risk hospital wards and those undergoing urological procedures.
Collapse
|
10
|
Tilahun M, Gedefie A, Bisetegn H, Debash H. Emergence of High Prevalence of Extended-Spectrum Beta-Lactamase and Carbapenemase Producing Acinetobacter Species and Pseudomonas aeruginosa Among Hospitalized Patients at Dessie Comprehensive Specialized Hospital, North-East Ethiopia. Infect Drug Resist 2022; 15:895-911. [PMID: 35299856 PMCID: PMC8921833 DOI: 10.2147/idr.s358116] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/24/2022] [Indexed: 12/27/2022] Open
Abstract
Background The emergence of extended spectrum beta lactamase and carbapenemase production of Acinetobacter and Pseudomonas aeruginosa is a great concern and major cause of nosocomial infections due to its ability to production of extended spectrum beta lactamase and carbapenemase enzymes. Objective To assess Emergence of high prevalence of extended-spectrum beta-lactamase and Carbapenemase producing Acinetobacter species and Pseudomonas aeruginosa among hospitalized patients at Dessie Comprehensive Specialized Hospital, North-East Ethiopia. Materials and Methods A hospital-based cross-sectional study was conducted from February–August 2021 at Dessie Referral Hospital in the North eastern Ethiopia. A total of 423 clinical samples taken from admitted patients. Clinical specimens were collected aseptically and inoculated on blood agar and MacConkey agar media. Antimicrobial susceptibility test, ESBL and carbapenemase production were performed as CLSI guideline. The data were entered into the Epi-data and imported to Statistical Package for Social Science version 25. P value of <0.05 with odds ratio and 95% confidence interval was considered as statistically significant. Results Out of 423 clinical specimens 17.7% (75/423) were culture positive nosocomial infection. The proportions of nosocomial infection were higher in blood stream followed by wound infection which accounted 24.6%, 20.8%, respectively. Overall, 32/75 (42.7%) and 19/75 (25.3%) patients had infection with ESBL and CP producing bacterial infection. P. aeruginosa was the most predominant isolated bacteria 46/75 (52.9%). The overall multidrug resistance rate of the isolated bacteria was 88% (66/75). The majority of highest resistance rate was Piperacillin tazobactam 50 (66.7%) and Aztreonam 26 (56.5%), respectively, while least resistance rate was Amikacin 27 (36%). Conclusion The incidence rates of ESBL, carbapenemase production and antimicrobial resistant Acinetobacter species and P. aeruginosa infections are high. Therefore, treatment should be based on culture and antimicrobial test result and minimize the use of antibiotics empirically.
Collapse
Affiliation(s)
- Mihret Tilahun
- Department of Medical Laboratory Sciences, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
- Correspondence: Mihret Tilahun, Department of Medical Laboratory Science College of Medicine and Health Sciences, Wollo University, PO.Box: 1145, Dessie, Ethiopia, Tel +251 920988307, Fax +251 333115250, Email
| | - Alemu Gedefie
- Department of Medical Laboratory Sciences, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
| | - Habitye Bisetegn
- Department of Medical Laboratory Sciences, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
| | - Habtu Debash
- Department of Medical Laboratory Sciences, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
| |
Collapse
|
11
|
Detrimental Effect of Ozone on Pathogenic Bacteria. Microorganisms 2021; 10:microorganisms10010040. [PMID: 35056489 PMCID: PMC8779011 DOI: 10.3390/microorganisms10010040] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/11/2021] [Accepted: 12/19/2021] [Indexed: 12/13/2022] Open
Abstract
(1) Background: Disinfection of medical devices designed for clinical use associated or not with the growing area of tissue engineering is an urgent need. However, traditional disinfection methods are not always suitable for some biomaterials, especially those sensitive to chemical, thermal, or radiation. Therefore, the objective of this study was to evaluate the minimal concentration of ozone gas (O3) necessary to control and kill a set of sensitive or multi-resistant Gram-positive and Gram-negative bacteria. The cell viability, membrane permeability, and the levels of reactive intracellular oxygen (ROS) species were also investigated; (2) Material and Methods: Four standard strains and a clinical MDR strain were exposed to low doses of ozone at different concentrations and times. Bacterial inactivation (cultivability, membrane damage) was investigated using colony counts, resazurin as a metabolic indicator, and propidium iodide (PI). A fluorescent probe (H2DCFDA) was used for the ROS analyses; (3) Results: No reduction in the count colony was detected after O3 exposure compared to the control group. However, the cell viability of E. coli (30%), P. aeruginosa (25%), and A. baumannii (15%) was reduced considerably. The bacterial membrane of all strains was not affected by O3 but presented a significant increase of ROS in E. coli (90 ± 14%), P. aeruginosa (62.5 ± 19%), and A. baumanni (52.6 ± 5%); (4) Conclusion: Low doses of ozone were able to interfere in the cell viability of most strains studied, and although it does not cause damage to the bacterial membrane, increased levels of reactive ROS are responsible for causing a detrimental effect in the lipids, proteins, and DNA metabolism.
Collapse
|
12
|
BERES E, BABES K, BERES ZL, DAINA LG, DAINA CM, CHEREGI C, CIUMARNEAN L, DOGARU G. Cost-effectiveness of home non-invasive ventilation in COPD group GOLD D patients. BALNEO AND PRM RESEARCH JOURNAL 2021. [DOI: 10.12680/balneo.2021.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction. Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality, estimated to be the third most common cause of death by 2020. The natural evolution of the disease is characterized by frequent exacerbations, severe exacerbations evolving with respiratory acidosis. Introducing home non-invasive ventilation (NIV) in the management of COPD group GOLD (Global Initiative for Chronic Obstructive Lung Disease) D patients generates supplementary costs, but the decreasing of the number of severe exacerbations will decrease the costs of drug treatment and hospitalization. This balance can be verified through a careful study of cost-effectiveness through modern methods of assessing the costs and years of life gained in relation to quality of life.
Material and method. This prospective study took place in the Emergency Department of the Bihor County Clinical Emergency Hospital, Oradea, between 01 October 2017 – 31 October2018, with a follow-up period of 2 years. We included 36 Group risk D COPD patients, presented with severe exacerbation that required NIV; the patients were divided into two study groups according to the treatment scheme after discharge (standard medication according to GOLD guidelines and long-term oxygen therapy - LTOT vs. LTOT + NIV). We follow-up at 2 years with the study group, and analyze the following: number of exacerbations (moderate and severe), number of hospitalizations, mortality rate in two years, average costs for the treatment of exacerbations and for stable COPD periods, quality adjusted life year (QALY).
Results and discussions. From 36 enrolled, 10 patients benefited from home NIV. The number of exacerbations was significantly lower in the NIV group compared with the LTOT group (1.72±0.79 vs 3.54±1.18). The incremental cost-effectiveness ratio (ICER) showed a net gain of 31% from gross product (GDP) per capita (5,641.71 ± 1,737.0-euro vs 9,272.3 ± 3,681.9 euro) per quality adjusted life year (QALY) for each patient.
Conclusions. Introduction home-NIV demonstrated clinical improvement and higher cost-effectiveness over LTOT alone in Class Risk D, COPD patients after discharge following a severe exacerbation.
Keywords: chronic obstructive pulmonary disease, non-invasive ventilation, cost-effectiveness, quality adjusted life year,
Collapse
Affiliation(s)
- Enikő BERES
- Cardiology Department, University of Oradea, Faculty of Medicine and Pharmacy, Romania
| | - Katalin BABES
- Cardiology Department, University of Oradea, Faculty of Medicine and Pharmacy, Romania
| | | | - Lucia Georgeta DAINA
- Psycho-neurosciences and Recovery Department, University of Oradea, Faculty of Medicine and Pharmacy, Romania
| | - Cristian Marius DAINA
- Psycho-neurosciences and Recovery Department, University of Oradea, Faculty of Medicine and Pharmacy, Romania
| | - Cornel CHEREGI
- Surgery Department, University of Oradea, Faculty of Medicine and Pharmacy, Romania
| | - Lorena CIUMARNEAN
- Internal Medicine Department, University of Medicine and Pharmacy „Iuliu Hatieganu”Cluj Napoca, Romania
| | - Gabriela DOGARU
- Medical Rehabilitation Department, University of Medicine and Pharmacy „Iuliu Hatieganu”Cluj Napoca, Romania
| |
Collapse
|
13
|
Detection of Multidrug-Resistant Enterobacterales-From ESBLs to Carbapenemases. Antibiotics (Basel) 2021; 10:antibiotics10091140. [PMID: 34572722 PMCID: PMC8465816 DOI: 10.3390/antibiotics10091140] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 12/16/2022] Open
Abstract
Multidrug-resistant Enterobacterales (MDRE) are an emerging threat to global health, leading to rising health care costs, morbidity and mortality. Multidrug-resistance is commonly caused by different β-lactamases (e.g., ESBLs and carbapenemases), sometimes in combination with other resistance mechanisms (e.g., porin loss, efflux). The continuous spread of MDRE among patients in hospital settings and the healthy population require adjustments in healthcare management and routine diagnostics. Rapid and reliable detection of MDRE infections as well as gastrointestinal colonization is key to guide therapy and infection control measures. However, proper implementation of these strategies requires diagnostic methods with short time-to-result, high sensitivity and specificity. Therefore, research on new techniques and improvement of already established protocols is inevitable. In this review, current methods for detection of MDRE are summarized with focus on culture based and molecular techniques, which are useful for the clinical microbiology laboratory.
Collapse
|
14
|
Bondar A, Popa AR, Papanas N, Popoviciu M, Vesa CM, Sabau M, Daina C, Stoica RA, Katsiki N, Stoian AP. Diabetic neuropathy: A narrative review of risk factors, classification, screening and current pathogenic treatment options (Review). Exp Ther Med 2021; 22:690. [PMID: 33986855 PMCID: PMC8111877 DOI: 10.3892/etm.2021.10122] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 02/22/2021] [Indexed: 12/15/2022] Open
Abstract
Diabetic neuropathy (DN) is a frequent complication of diabetes mellitus (DM) with severe consequences as it progresses and influences all human body systems. This review discusses the risk factors for DN, the main characteristics of the clinical forms of DN, the screening methods and the current therapeutic options. Distal symmetric DN is the primary clinical form, and DM patients should be screened for this complication. The most important treatment of DN remains good glucose control, generally defined as HbA1c ≤7%. Symptomatic treatment improves life quality in diabetic patients. Pharmacological agents such as alpha (α)-lipoic acid and benfotiamine have been validated in several studies since they act on specific pathways such as increased oxidative stress (α-lipoic acid exerts antioxidant effects) and the excessive production of advanced glycosylation products (benfotiamine may inhibit their production via the normalization of glucose). Timely diagnosis of DN is significant to avoid several complications, including lower limb amputations and cardiac arrhythmias.
Collapse
Affiliation(s)
- Andrei Bondar
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Amorin Remus Popa
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Nikolaos Papanas
- Second Department of Internal Medicine, ‘Democritus’ University of Thrace Diabetes Centre, 68100 Alexandroupolis, Greece
| | - Mihaela Popoviciu
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Cosmin Mihai Vesa
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Monica Sabau
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Cristian Daina
- Department of Psychiatry, Clinical County Emergency Hospital of Oradea, 410169 Oradea, Romania
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Roxana Adriana Stoica
- Department of Diabetes, Nutrition and Metabolic Diseases, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Niki Katsiki
- Second Propaedeutic Department of Internal Medicine, AHEPA University Hospital, 54636 Thessaloniki, Greece
| | - Anca Pantea Stoian
- Department of Diabetes, Nutrition and Metabolic Diseases, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
| |
Collapse
|
15
|
Jiao P, Jiang Y, Jiao J, Zhang L. The pathogenic characteristics and influencing factors of health care-associated infection in elderly care center under the mode of integration of medical care and elderly care service: A cross-sectional study. Medicine (Baltimore) 2021; 100:e26158. [PMID: 34032774 PMCID: PMC8154447 DOI: 10.1097/md.0000000000026158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/12/2021] [Indexed: 11/25/2022] Open
Abstract
The aim of this study was to analyze the distribution of pathogenic bacteria in hospitalized patients in elderly care centers under the mode of integration of medical care and elderly care service, and explore the influencing factors to reduce the health care-associated infection rate of hospitalized patients.A total of 2597 inpatients admitted to elderly care centers from April 2018 to December 2019 were included in the study. The etiology characteristics of health care-associated infections (HCAI) was statistically analyzed, univariate analysis, and multivariate logistic regression analysis method were used to analyze the influencing factors of HCAI.A total of 98 of 2597 inpatients in the elderly care centers had HCAI, and the infection rate was 3.77%. The infection sites were mainly in the lower respiratory tract and urinary tract, accounting for 53.92% and 18.63%, respectively. A total of 53 pathogenic bacteria were isolated, 43 of which (81.13%) were Gram-negative, mainly Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae, which respectively accounted for 24.53, 16.98, and 13.21%. 9 (16.98%) strains were Gram-positive, mainly Staphylococcus aureus and Enterococcus faecium, respectively accounting for 7.55 and 5.66%. Only 1 patient (1.89%) had a fungal infection. Multivariate logistic regression analysis indicated that total hospitalization days, antibiotic agents used, days of central line catheter, use of urinary catheter and diabetes were independent risk factors of nosocomial infection in elderly care centers (P < .05).Many factors can lead to nosocomial infections in elderly care centers. Medical staff should take effective intervention measures according to the influencing factors to reduce the risk of infection in elderly care facilities.
Collapse
Affiliation(s)
- Panpan Jiao
- Hospital Infection Management Office, Binzhou People's Hospital, Binzhou Shandong
| | - Yufen Jiang
- Department of Gastroenterology, Kezhou People's Hospital, Atushi Xinjiang
| | - Jianhong Jiao
- Department of Department of Cardiology, Yangxin County Hospital of Traditional Chinese Medicine of Shandong Province, Binzhou Shandong
| | - Long Zhang
- Department of Hepatopancreatobiliary Surgery, Ganzhou People's Hospital of Jiangxi Province (Ganzhou Hospital Affiliated to Nanchang University), Ganzhou, Jiangxi, P.R. China
| |
Collapse
|
16
|
Alebel M, Mekonnen F, Mulu W. Extended-Spectrum β-Lactamase and Carbapenemase Producing Gram-Negative Bacilli Infections Among Patients in Intensive Care Units of Felegehiwot Referral Hospital: A Prospective Cross-Sectional Study. Infect Drug Resist 2021; 14:391-405. [PMID: 33564247 PMCID: PMC7867495 DOI: 10.2147/idr.s292246] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 01/08/2021] [Indexed: 11/23/2022] Open
Abstract
Background Owing to the specific risk profile of its residents, intensive care units (ICUs) are the best place for selection pressure and the epicenter for resistance development and dissemination. Infections with β-lactamase releasing Gram-negative bacilli (GNB) at ICUs are an emerging global threat. This study dogged the magnitude of extended-spectrum β-lactamase (ESBL) and carbapenemase releasing Gram-negative bacilli infections and associated factors among patients in the ICUs of Felegehiwot Referral Hospital, Ethiopia. Methods A cross-sectional study was done through February to June 2020. Wound swabs, urine, blood and sputum samples were collected from patients in the ICUs symptomatic for infections while excluding those under coma and shock. Bacterial species were verified using standard microbiological methods. Carbapenemase and ESBL production were identified using modified carbapenem inactivation and combined disk diffusion methods, respectively. Multivariable analysis was calculated for factors associated with ESBL production. P-value < 0.05 was taken as cut-off for statistical significance. Results Out of 270 patients in the ICU, 67 (24.8%) and 14 (5.2%) had infections with ESBL and carbapenemase releasing GNB, respectively. The most frequent ESBL producing isolates were P. aeruginosa (100%), E. cloacae (100%), K. pneumoniae (82.8%) and E. coli (64%). The predominant carbapenemase producer isolates were K. pneumoniae (27.6%) and E. cloacae (33.3%). Overall, 77 (81.1%) of species were multi-drug resistant. All GNB species were 100% resistant to tetracycline and ampicillin. They are also resistant to cefuroxime, ceftazidime, sulfamethoxazole-trimethoprim and cefotaxime. Prior hospitalization (AOR = 5.5, CI = 2.63-11.46), support with medical care devices (AOR = 23.7, CI = 4.6-12) and arterial intravenous catheterization (AOR = 2.7, CI = 1.3-5.3) had significant association with β-lactamase producing GNB infection. Conclusion Infection with ESBL and carbapenemase producing Gram-negative bacilli linked with an alarming degree of multi-drug resistant isolates is a major healthcare threat among patients in ICUs. Hence, strict adherence to infection prevention practices and wise use of antibiotics are recommended to slow the spread of antimicrobial resistance.
Collapse
Affiliation(s)
- Mekonnen Alebel
- Department of Clinical Laboratory Science, Chagni Hospital, Chagni, Ethiopia
| | - Feleke Mekonnen
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Wondemagegn Mulu
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| |
Collapse
|
17
|
Rodrigues RL, Lima JLDC, de Sena KXDFR, Maciel MAV. Phenotypic and genotypic analysis of biofilm production by Pseudomonas aeruginosa isolates from infection and colonization samples. Rev Soc Bras Med Trop 2020; 53:e20200399. [PMID: 33111915 PMCID: PMC7580276 DOI: 10.1590/0037-8682-0399-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/11/2020] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Pseudomonas aeruginosa is an opportunistic pathogen associated with healthcare-related infections, affecting mainly patients with underlying diseases and immunosuppression. This microorganism has several virulence mechanisms that favour its pathogenesis, including the production of biofilm. This study aimed to analyze the phenotypic production of biofilms, the occurrence of quorum sensing (QS) genes, and the clonal profile of clinical isolates of P. aeruginosa from colonized/infected patients in a tertiary hospital in Recife-PE. METHODS We obtained 21 isolates that were classified as infection isolates (II), and 10 colonization isolates (CI). The phenotypic analysis for biofilm production was performed quantitatively. The QS genes were detected by specific PCRs, and the clonal profile was assessed using ERIC-PCR. RESULTS Of the 31 isolates, 58.1 % (18/31) were biofilm producers, of which 70 % (7/10) were CI and classified as weakly adherent; 52.4 % (11/21) of the II produced biofilms, and were classified as weak (38.1 %, (8/21)), moderate (9.5 %, (2/21)), and strongly adherent (4.8 %, (1/21)). All isolates harbored the QS genes analyzed. In the clonal analysis, 26 distinct genetic profiles were identified, highlighting the presence of a clone in four samples, i.e., one infection isolate, and 3 colonization isolates. CONCLUSIONS The detection of biofilm formation is important in P. aeruginosa in addition to the identification of colonization and infection isolates, especially from complex environments such as ICUs. Further, we define a strategy for monitoring and analyzing P. aeruginosa strains that can potentially cause infections in hospitalized patients.
Collapse
Affiliation(s)
- Rodrigo Lira Rodrigues
- Universidade Federal de Pernambuco, Centro de Ciências Médicas,
Coordenação de Área Medicina Tropical, Recife, PE, Brasil
| | - Jailton Lobo da Costa Lima
- Universidade Federal de Pernambuco, Centro de Ciências Médicas,
Coordenação de Área Medicina Tropical, Recife, PE, Brasil
| | | | - Maria Amélia Vieira Maciel
- Universidade Federal de Pernambuco, Centro de Ciências Médicas,
Coordenação de Área Medicina Tropical, Recife, PE, Brasil
| |
Collapse
|
18
|
Risk stratification for multidrug-resistant Gram-negative infections in ICU patients. Curr Opin Infect Dis 2020; 32:626-637. [PMID: 31567570 DOI: 10.1097/qco.0000000000000599] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Antimicrobial resistance among Gram-negative microorganisms has alarmingly increased in the past 10 years worldwide. Infections caused by these microorganisms are difficult to treat, especially in critically ill patients.The present review examines how to accurately predict which patients carry a greater risk of colonization or infection on which to base the timely choice of an effective empirical antibiotic treatment regimen and avoid antibiotic overuse. RECENT FINDINGS There are many risk factors for acquiring one of many multidrug-resistant Gram-negative microorganisms (MDR-GN); however, scores anticipating colonization, infection among those colonized, or mortality among those infected have a variable accuracy. Accuracy of scores anticipating colonization is low. Scores predicting infections among colonized patients are, in general, better, and ICU patients infected with MDR-GN have a worse prognosis than those infected by non-resistant microorganisms. Scores are, in general, better at excluding patients. SUMMARY Despite these limitations, scores continue to gain popularity including those by Giannella, Tumbarello, Johnson, or the scores INCREMENT carbapenem-producing Enterobacteriaceae score, Cano, Tartof, or CarbaSCORE.
Collapse
|
19
|
Uivaraseanu B, Bungau S, Tit DM, Fratila O, Rus M, Maghiar TA, Maghiar O, Pantis C, Vesa CM, Zaha DC. Clinical, Pathological and Microbiological Evaluation of Diabetic Foot Syndrome. ACTA ACUST UNITED AC 2020; 56:medicina56080380. [PMID: 32731610 PMCID: PMC7466372 DOI: 10.3390/medicina56080380] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 12/20/2022]
Abstract
Background and objectives: Diabetic foot ulcer (DFU) is one of the serious complications of diabetes, being related to frequent and long-term hospitalisation, reduced quality of life of the patient, amputations, a high rate of morbidity and mortality. The bacterial aetiology is complex, sometimes involving more than one pathogen, playing a major role in the infection prognosis and development of microbial resistance. This study evaluated the current state of the aetiology, clinical and pathological characteristics of DFU in a single diabetes centre in order to provide some specific measures to prevent it. Materials and Methods: This retrospective study was conducted on patients with diabetes mellitus (252 individuals diagnosed with DFU) between January 2018–December 2019. All participants were assessed based on their clinical characteristics, including complications of diabetes and pathological and microbiological evaluations. Results: The present research revealed that diabetic foot ulcer prevalence was higher in males than in females and higher in type 2 diabetic patients than in type 1 diabetic patients. The patients with diabetic foot ulcer were older, had a higher body mass index (BMI), longer diabetic duration and had more diabetic complications, such as retinopathy, diabetic polyneuropathy and diabetic kidney disease, than patients without diabetic foot ulceration. Conclusions: Taking into account all factors involved, including the aetiology and the antibiotic susceptibility pattern of these isolates, planning the suitable treatment options of patients is possible.
Collapse
Affiliation(s)
- Bogdan Uivaraseanu
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (B.U.); (T.A.M.); (O.M.); (C.P.)
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
- Correspondence: ; Tel.: +40-0726-776-588
| | - Delia Mirela Tit
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
| | - Ovidiu Fratila
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (O.F.); (M.R.)
| | - Marius Rus
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (O.F.); (M.R.)
| | - Teodor Andrei Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (B.U.); (T.A.M.); (O.M.); (C.P.)
| | - Octavian Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (B.U.); (T.A.M.); (O.M.); (C.P.)
| | - Carmen Pantis
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (B.U.); (T.A.M.); (O.M.); (C.P.)
| | - Cosmin Mihai Vesa
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (C.M.V.); (D.C.Z.)
| | - Dana Carmen Zaha
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania; (C.M.V.); (D.C.Z.)
| |
Collapse
|
20
|
Colonization of Methicillin-Resistant Staphylococcus aureus (MRSA) among Medical Students in Tertiary Institution in Central Malaysia. Antibiotics (Basel) 2020; 9:antibiotics9070382. [PMID: 32640588 PMCID: PMC7400662 DOI: 10.3390/antibiotics9070382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 11/25/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus or MRSA infection is virulent and presents with a broad spectrum of severity. Limited regional reports that specifically outlined the potential risk of medical students being part of the dissemination of MRSA in healthcare settings were noted. This study aims to assess the prevalence and contributory factors of colonization of MRSA on neckties, headscarves, and ID badges among medical students in a local medical university in Malaysia. A cross-sectional study was conducted involving 256 medical students. A validated questionnaire was used to collect the data, and sample swabs were collected between July and August 2013 by swabbing neckties, headscarves, or identification badges. The swabs were then streaked onto mannitol salt agar (MSA) and incubated at 37 °C overnight. Out of 433 samples taken, 40 swabs (9.24%) were positive for Staphylococcus aureus. Out of the 40 swabs, five (12.5%) isolates were MRSA (one culture was isolated from the headscarf of a preclinical student, one culture was isolated from the necktie of clinical students, while the remaining three were isolated from identification badges of clinical students. There was no significant association between age, gender, ethnicity, and phase of medical students with the colonization of MRSA (p > 0.05). There was a significant association between knowledge score on hand hygiene practice and phase of medical students. MRSA colonies were present on neckties, headscarves, and identification badges of medical students of all phases. The findings from this study suggest the need for improvement of hand hygiene knowledge and discontinuity of mandatory use of physical ID badges and neckties among medical students.
Collapse
|
21
|
Emami A, Pirbonyeh N, Keshavarzi A, Javanmardi F, Moradi Ghermezi S, Ghadimi T. Three Year Study of Infection Profile and Antimicrobial Resistance Pattern from Burn Patients in Southwest Iran. Infect Drug Resist 2020; 13:1499-1506. [PMID: 32547119 PMCID: PMC7246306 DOI: 10.2147/idr.s249160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/29/2020] [Indexed: 12/14/2022] Open
Abstract
Introduction Burn wound infections, as one of the most important risk factors, cause serious complications in burns. Hence, the focus of medical care should be preventing infections and resistant isolates. The current study investigates the prevalence of infectious agents and antimicrobial resistance patterns during three years. Materials and Methods A total of 960 isolates were collected from different sample kinds cultured for 615 burn patients who were hospitalized during January 2016 to December 2018 in Amir-Al-Momenin Burn Center. The type of microorganism and their antibiotic resistance patterns were identified by microbiological tests and the standard disk-diffusion method according to the introduced standard techniques. Results Incidence of positive growth was seen more in males than in females. Most of the burns encountered were due to flame injuries (35.4%). Based on the diversity of bacterial isolates, Pseudomonas aeruginosa was the most frequent pathogen (49.9%), followed by Klebsiella sp. (9.7%), Acinetobacter sp. (7.2%) and Staphylococcus aureus (6.5%). The trend of resistance of meropenem was declining in P. aeruginosa isolates. Klebsiella sp. as the second most prevalent agent showed a high level of resistance to the studied antibiotics. The antibiogram results for S. aureus isolates showed an increasing trend in MRSA isolates. Conclusion By evaluating the infectious agent, it was found that although frequencies of microorganisms and resistant isolates were a little high, performing a multidisciplinary approach controls the trend during the study period. These achievements have been gained due to a strict politicized infection control and stewardship program in the appointed burn center.
Collapse
Affiliation(s)
- Amir Emami
- Microbiology Department, Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Pirbonyeh
- Microbiology Department, Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abdolkhalegh Keshavarzi
- Surgery Department, Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Javanmardi
- Microbiology Department, Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedigheh Moradi Ghermezi
- Microbiology Department, Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tayyeb Ghadimi
- Burn Research Center, Surgery Department, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
22
|
Tamez-Torres KM, Ponce-de-Leon A, Torres-Gonzalez P, Perez-Garcia E, Torres-Veintimilla E, Valle MBD, Sifuentes-Osornio J. High prevalence of MDR gram-negative bacteria in feces of healthy blood donors in Mexico. Eur J Clin Microbiol Infect Dis 2020; 39:1439-1444. [PMID: 32170542 DOI: 10.1007/s10096-020-03858-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/03/2020] [Indexed: 11/26/2022]
Abstract
During the initial stage of a study to recruit universal intestinal microbiota donors in Mexico City, we found multiple "healthy" subjects that colonized with MDRO (Multidrug-resistant organisms). We aimed to describe clinical and demographic characteristics of these individuals. This was a prospective observational study. Participants were consecutively recruited among blood donors. A fecal sample was collected from each subject and analyzed at the same day in search of MDRO through chromographic culture media and, if growth observed, later confirmed by MALDI-TOF and susceptibility testing in Vitek 2 system. From July 2018 to March 2019, 85 individuals were screened for fecal colonization. Median age was 35 years (IQR 27-46 years), and 48/85 (56.4%) were males. Seventy-two (84.7%) subjects harbored at least one MDRO. ESBL-producing microorganisms were found in 72/85 (84.3%) subjects, and E. coli was the most frequent (63/85, 74.1%). Four samples (2 E. coli, 2 P. aeruginosa, 2.4% each) harbored carbapenem-resistant Enterobacteriaceae (CRE), together with an ESBL-producing microorganism. Antibiotic use (p = 0.06) and PPIs or H2-blockers intake (p = 0.03) were more common in the colonized subjects during the previous 6-month period. We report a high incidence of enteric colonization of healthy subjects with MDRO, a condition that may be related to antibiotics or PPIs/H2-blockers consumption. This surprisingly high MDRO colonization rate in potential FMT donors emphasizes the need for careful screening of donors to avoid possible transmission to FMT recipients.
Collapse
Affiliation(s)
- Karla M Tamez-Torres
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Alfredo Ponce-de-Leon
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Pedro Torres-Gonzalez
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Esteban Perez-Garcia
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Estefania Torres-Veintimilla
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Miriam Bobadilla-Del Valle
- Laboratory of Clinical Microbiology, Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Jose Sifuentes-Osornio
- Department of Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Av. Vasco de Quiroga 15, Belisario Domínguez Sección XVI, Tlalpan, Zip Code 14080, Mexico City, Mexico.
| |
Collapse
|
23
|
Zaha DC, Bungau S, Uivarosan D, Tit DM, Maghiar TA, Maghiar O, Pantis C, Fratila O, Rus M, Vesa CM. Antibiotic Consumption and Microbiological Epidemiology in Surgery Departments: Results from a Single Study Center. Antibiotics (Basel) 2020; 9:antibiotics9020081. [PMID: 32069828 PMCID: PMC7168146 DOI: 10.3390/antibiotics9020081] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 02/06/2023] Open
Abstract
The spectrum and antibiotic sensitivity of isolated strains vary between departments, hospitals, countries; the discrepancies are related to the use and dosage of these antibiotics. The purpose of our research was to compare the type of pathogens and the susceptibility of the isolated strains, as well as the use of antibiotics in the surgical departments of the Emergency Clinical County Hospital, Oradea, Romania; for one year, all the patients admitted to the mentioned sections were monitored. Antibiotic sensitivity of isolated strains was expressed using cumulative antibiogram. The total consumption of antibiotics was 479.18 DDD/1000 patient-days in the surgical sections. The most commonly used drugs were cephalosporins third and first generation, and clindamycin. Infections of wounds, urinary tract and fluids were most commonly diagnosed, and the most isolated was Escherichia coli, followed by Staphylococcus aureus and Enterococcus faecalis. The most commonly prescribed antimicrobial was ceftriaxone, but its sensitivity was low. This study revealed that the intake of antimicrobials in the surgical sections is increased and the comparison of antimicrobial prescriptions, sensitivity rates, and the spectrum of isolated pathogens showed differences between antimicrobials.
Collapse
Affiliation(s)
- Dana Carmen Zaha
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (D.C.Z.); (D.U.); (C.M.V.)
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 N. Jiga St., 410028 Oradea, Romania;
- Correspondence: ; Tel.: +40-726-776-588
| | - Diana Uivarosan
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (D.C.Z.); (D.U.); (C.M.V.)
| | - Delia Mirela Tit
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 29 N. Jiga St., 410028 Oradea, Romania;
| | - Teodor Andrei Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (T.A.M.); (O.M.); (C.P.)
| | - Octavian Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (T.A.M.); (O.M.); (C.P.)
| | - Carmen Pantis
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (T.A.M.); (O.M.); (C.P.)
| | - Ovidiu Fratila
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (O.F.); (M.R.)
| | - Marius Rus
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (O.F.); (M.R.)
| | - Cosmin Mihai Vesa
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 1 December Sq., 410081 Oradea, Romania; (D.C.Z.); (D.U.); (C.M.V.)
| |
Collapse
|