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Pfang B, Villegas García MA, Blanco García A, Auñón Rubio Á, Esteban J, García Cañete J. Risk Factors for Therapeutic Failure and One-Year Mortality in Patients with Intramedullary Nail-Associated Infection after Trochanteric and Subtrochanteric Hip Fracture Repair. Antibiotics (Basel) 2024; 13:463. [PMID: 38786191 PMCID: PMC11118869 DOI: 10.3390/antibiotics13050463] [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: 04/02/2024] [Revised: 05/10/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Despite the implications of trochanteric and subtrochanteric intramedullary (IM) nail infection for patients with hip fracture, little is known about risk factors for therapeutic failure and mortality in this population. We performed a retrospective observational analysis including patients diagnosed with trochanteric and subtrochanteric IM nail infection at a Spanish academic hospital during a 10-year period, with a minimum follow-up of 22 months. Of 4044 trochanteric and subtrochanteric IM nail implants, we identified 35 cases of infection during the study period (0.87%), 17 of which were chronic infections. Patients with therapeutic failure (n = 10) presented a higher average Charlson Comorbidity Index (CCI) (5.40 vs. 4.21, p 0.015, CI 0.26-2.13) and higher rates of polymicrobial (OR 5.70, p 0.033, CI 1.14-28.33) and multidrug-resistant (OR 7.00, p 0.027, CI 1.24-39.57) infections. Upon multivariate analysis, polymicrobial infection and the presence of multidrug-resistant pathogens were identified as independent risk factors for therapeutic failure. Implant retention was associated with an increased risk of failure in chronic infection and was found to be an independent risk factor for overall one-year mortality in the multivariate analysis. Our study highlights the importance of broad-spectrum empirical antibiotics as initial treatment of trochanteric and subtrochanteric IM nail-associated infection while awaiting microbiological results. It also provides initial evidence for the importance of implant removal in chronic IM-nail infection.
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Affiliation(s)
- Bernadette Pfang
- Unidad de Innovación Clínica y Organizativa, Red Quirónsalud 4H, 28040 Madrid, Spain
- Instituto de Investigación Sanitaria Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain
| | | | - Antonio Blanco García
- Emergency Department, Hospital Fundación Jiménez Díaz, 28040 Madrid, Spain
- CIBERINFEC-CIBER de Enfermedades Infecciosas, 28029 Madrid, Spain
| | - Álvaro Auñón Rubio
- CIBERINFEC-CIBER de Enfermedades Infecciosas, 28029 Madrid, Spain
- Orthopedic Surgery and Traumatology Department, Hospital Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - Jaime Esteban
- Instituto de Investigación Sanitaria Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain
- CIBERINFEC-CIBER de Enfermedades Infecciosas, 28029 Madrid, Spain
| | - Joaquín García Cañete
- Industrial Engineering Politecnic, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
- CIBERINFEC-CIBER de Enfermedades Infecciosas, 28029 Madrid, Spain
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Giliazeva A, Akosah Y, Noack J, Mardanova A. Adhesion of Klebsiella oxytoca to bladder or lung epithelial cells is promoted by the presence of other opportunistic pathogens. Microb Pathog 2024; 190:106642. [PMID: 38599551 DOI: 10.1016/j.micpath.2024.106642] [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: 12/30/2023] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
The intestinal and respiratory tracts of healthy individuals serve as habitats for a diverse array of microorganisms, among which Klebsiella oxytoca holds significance as a causative agent in numerous community- and hospital-acquired infections, often manifesting in polymicrobial contexts. In specific circumstances, K. oxytoca, alongside other constituents of the gut microbiota, undergoes translocation to distinct physiological niches. In these new environments, it engages in close interactions with other microbial community members. As this interaction may progress to co-infection where the virulence of involved pathogens may be promoted and enhance disease severity, we investigated how K. oxytoca affects the adhesion of commonly co-isolated bacteria and vice versa during co-incubation of different biotic and abiotic surfaces. Co-incubation was beneficial for the adhesion of at least one of the two co-cultured strains. K. oxytoca enhanced the adhesion of other enterobacteria strains to polystyrene and adhered more efficiently to bladder or lung epithelial cell lines in the presence of most enterobacteria strains and S. aureus. This effect was accompanied by bacterial coaggregation mediated by carbohydrate-protein interactions occurring between bacteria. These interactions occur only in sessile, but not planktonic populations, and depend on the features of the surface. The data are of particular importance for the risk assessment of the urinary and respiratory tract infections caused by K. oxytoca, including those device-associated. In this paper, we present the first report on K. oxytoca ability to acquire increased adhesive capacities on epithelial cells through interactions with common causal agents of urinary and respiratory tract infections.
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Affiliation(s)
- Adeliia Giliazeva
- Institute of Biotechnology, Faculty of Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Universitätsplatz 1, Building 15, 01968, Senftenberg, Germany.
| | - Yaw Akosah
- Department of Molecular Pathobiology, College of Dentistry, New York University, 345 E. 24th St., 10010, New York, USA
| | - Jonas Noack
- Medipan GmbH, Computer Science, Ludwig-Erhard-Ring 3, 15827, Dahlewitz, Germany
| | - Ayslu Mardanova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga region) Federal University, Kremlyovskaya 18, 420008, Kazan, Russia
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López-de-Andrés A, Albaladejo-Vicente R, Palacios-Ceña D, Carabantes-Alarcon D, Zamorano-Leon JJ, de Miguel-Diez J, Lopez-Herranz M, Jiménez-García R. Time Trends in Spain from 2001 to 2018 in the Incidence and Outcomes of Hospitalization for Urinary Tract Infections in Patients with Type 2 Diabetes Mellitus. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249427. [PMID: 33339194 PMCID: PMC7765668 DOI: 10.3390/ijerph17249427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/08/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022]
Abstract
We aim to examine the incidences, clinical characteristics, and in-hospital outcomes of type 2 diabetes (T2DM) patients hospitalized with urinary tract infections (UTIs) in Spain and to identify the factors associated with in-hospital mortality (IHM). A retrospective observational study was carried out with a sample that included all adult patients who were hospitalized for UTIs between 2001 and 2018 and collected in the Spanish National Health System Hospital Discharge Database. We identified 850,276 patients with UTIs (25.49% with T2DM). The incidence of UTIs increased in patients with and without diabetes from 290.76 and 74.79 cases per 100,000 inhabitants in the period from year 2001 to year 2003 to 568.45 and 144.0 in the period from 2016 to 2018, respectively (p < 0.001). Adjusted incidence of UTIs was higher in T2DM patients (incidence rate ratio (IRR) 4.36; 95% CI 4.35–4.39). The multivariable analysis showed a significant reduction in the IHM over time for men and women with T2DM. In T2DM, patients’ higher IHM was associated with older age, comorbidities, and Staphylococcus aureus isolation. Women with T2DM had a higher risk of dying than men. The risk of IHM with an episode of UTIs was independent of the presence of T2DM (odds ratio (OR) 0.97; 95% CI 0.91–1.01). We conclude that the incidence of UTIs was over four times higher in T2DM than nondiabetic patients and has increased over time.
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Affiliation(s)
- Ana López-de-Andrés
- Department of Public Health & Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.L.-d.-A.); (D.C.-A.); (J.J.Z.-L.); (R.J.-G.)
| | - Romana Albaladejo-Vicente
- Department of Public Health & Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.L.-d.-A.); (D.C.-A.); (J.J.Z.-L.); (R.J.-G.)
- Correspondence:
| | - Domingo Palacios-Ceña
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, Alcorcón, 28922 Madrid, Spain;
| | - David Carabantes-Alarcon
- Department of Public Health & Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.L.-d.-A.); (D.C.-A.); (J.J.Z.-L.); (R.J.-G.)
| | - José Javier Zamorano-Leon
- Department of Public Health & Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.L.-d.-A.); (D.C.-A.); (J.J.Z.-L.); (R.J.-G.)
| | - Javier de Miguel-Diez
- Respiratory Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28009 Madrid, Spain;
- Department of Medicine, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Marta Lopez-Herranz
- Faculty of Nursing, Physiotherapy and Podology, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Rodrigo Jiménez-García
- Department of Public Health & Maternal and Child Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.L.-d.-A.); (D.C.-A.); (J.J.Z.-L.); (R.J.-G.)
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Effectiveness of antibiotics versus ibuprofen in relieving symptoms of nosocomial urinary tract infection: A comparative study. J Am Assoc Nurse Pract 2019; 31:60-64. [PMID: 30303832 DOI: 10.1097/jxx.0000000000000101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE Antibiotic therapy has been the mainstay of treatment in the management of hospitalized patients with nosocomial urinary tract infection (UTI); however, its use is associated with an increase in resistance and high cost. Ibuprofen showed effectiveness in relieving symptoms of UTI, but its superiority is questionable. The goal of this study was to compare the effectiveness of antibiotics against ibuprofen in relieving symptoms of UTI and to identify factors that affect symptom relief. METHODS This study was conducted in three public hospitals in Jordan. Patients with nosocomial UTI were assigned to either antibiotics or ibuprofen. Symptoms of UTI were assessed at the time of initiation of treatment and 5 days later. CONCLUSIONS Antibiotics were more effective in relieving symptoms of UTI than Ibuprofen. Comorbidity and length of hospitalization affected symptom relief during the treatment of UTI. IMPLICATION FOR PRACTICE Nurse practitioners in the clinical settings can take an active role in helping patients with UTI to achieve relief of symptoms by supporting the use of antibiotics over ibuprofen in symptom resolution.
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Fondrie WE, Liang T, Oyler BL, Leung LM, Ernst RK, Strickland DK, Goodlett DR. Pathogen Identification Direct From Polymicrobial Specimens Using Membrane Glycolipids. Sci Rep 2018; 8:15857. [PMID: 30367087 PMCID: PMC6203844 DOI: 10.1038/s41598-018-33681-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/20/2018] [Indexed: 12/31/2022] Open
Abstract
With the increased prevalence of multidrug-resistant Gram-negative bacteria, the use of colistin and other last-line antimicrobials is being revisited clinically. As a result, there has been an emergence of colistin-resistant bacterial species, including Acinetobacter baumannii and Klebsiella pneumoniae. The rapid identification of such pathogens is vitally important for the effective treatment of patients. We previously demonstrated that mass spectrometry of bacterial glycolipids has the capacity to identify and detect colistin resistance in a variety of bacterial species. In this study, we present a machine learning paradigm that is capable of identifying A. baumannii, K. pneumoniae and their colistin-resistant forms using a manually curated dataset of lipid mass spectra from 48 additional Gram-positive and -negative organisms. We demonstrate that these classifiers detect A. baumannii and K. pneumoniae in isolate and polymicrobial specimens, establishing a framework to translate glycolipid mass spectra into pathogen identifications.
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Affiliation(s)
- William E Fondrie
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Tao Liang
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, USA
| | - Benjamin L Oyler
- Toxicology and Pharmacology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Lisa M Leung
- Department of Microbial Pathogenesis, University of Maryland School of Dentistry, Baltimore, MD, 21201, USA.,Divisions of Microbiology and Molecular Biology, Laboratories Administration, Maryland Department of Health, Baltimore, Maryland, 21205, USA
| | - Robert K Ernst
- Department of Microbial Pathogenesis, University of Maryland School of Dentistry, Baltimore, MD, 21201, USA
| | - Dudley K Strickland
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.,Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.,Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - David R Goodlett
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, 21201, USA.
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Beyter D, Lin MS, Yu Y, Pieper R, Bafna V. ProteoStorm: An Ultrafast Metaproteomics Database Search Framework. Cell Syst 2018; 7:463-467.e6. [PMID: 30268435 DOI: 10.1016/j.cels.2018.08.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/22/2018] [Accepted: 08/13/2018] [Indexed: 12/15/2022]
Abstract
Shotgun metaproteomics has the potential to reveal the functional landscape of microbial communities but lacks appropriate methods for complex samples with unknown compositions. In the absence of prior taxonomic information, tandem mass spectra would be searched against large pan-microbial databases, which requires heavy computational workload and reduces sensitivity. We present ProteoStorm, an efficient database search framework for large-scale metaproteomics studies, which identifies high-confidence peptide-spectrum matches (PSMs) while achieving a two-to-three orders-of-magnitude speedup over popular tools. A reanalysis of a urinary tract infection (UTI) dataset of 110 individuals revealed a complex pattern of polymicrobial expression, including sub-types of UTIs, cases of bacterial vaginosis, and evidence of no underlying disease. Importantly, compared to the initial UTI study that restricted the search database to a manually curated list of 20 genera, ProteoStorm identified additional genera that were previously unreported, including a case of infection with the rare pathogen Propionimicrobium.
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Affiliation(s)
- Doruk Beyter
- Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Miin S Lin
- Graduate Program in Bioinformatics & Systems Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Yanbao Yu
- J. Craig Venter Institute, Rockville, MD 20850, USA
| | | | - Vineet Bafna
- Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA 92093, USA.
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Development of carboxymethyl cellulose-based hydrogel and nanosilver composite as antimicrobial agents for UTI pathogens. Carbohydr Polym 2016; 138:229-36. [DOI: 10.1016/j.carbpol.2015.11.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/02/2015] [Accepted: 11/04/2015] [Indexed: 02/04/2023]
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Kline KA, Bowdish DME. Infection in an aging population. Curr Opin Microbiol 2016; 29:63-7. [DOI: 10.1016/j.mib.2015.11.003] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/28/2015] [Accepted: 11/17/2015] [Indexed: 12/21/2022]
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