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Alfano G, Morisi N, Giovanella S, Frisina M, Amurri A, Tei L, Ferri M, Ligabue G, Donati G. Risk of infections related to endovascular catheters and cardiac implantable devices in hemodialysis patients. J Vasc Access 2024:11297298241240502. [PMID: 38506890 DOI: 10.1177/11297298241240502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024] Open
Abstract
Patients requiring dialysis are extremely vulnerable to infectious diseases. The high burden of comorbidities and weakened immune system due to uremia and previous immunosuppressive therapy expose the patient on dialysis to more infectious events than the general population. The infectious risk is further increased by the presence of endovascular catheters and implantable cardiologic devices. The former is generally placed as urgent vascular access for dialysis and in subjects requiring hemodialysis treatments without autogenous arteriovenous fistula. The high frequency of cardiovascular events also increases the likelihood of implanting indwelling implantable cardiac devices (CIED) such as pacemakers (PMs) and defibrillators (ICDs). The simultaneous presence of CVC and CIED yields an increased risk of developing severe prosthetic device-associated bloodstream infections often progressing to septicemia. Although, antibiotic therapy is the mainstay of prosthetic device-related infections, antibiotic resistance of biofilm-residing bacteria reduces the choice of infection eradication. In these cases, the resolution of the infection process relies on the removal of the prosthetic device. Compared to CVC removal, the extraction of leads is a more complex procedure and poses an increased risk of vessel tearing. As a result, the prevention of prosthetic device-related infection is of utmost importance in hemodialysis (HD) patients and relies principally on avoiding CVC as vascular access for HD and placement of a new class of wireless implantable medical devices. When the combination of CVC and CIED is inevitable, prevention of infection, mainly due translocation of skin bacteria, should be a mandatory priority for healthcare workers.
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Affiliation(s)
- Gaetano Alfano
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
| | - Niccolò Morisi
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Silvia Giovanella
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Monica Frisina
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Alessio Amurri
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Lorenzo Tei
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
- Nephrology and Dialysis Unit, Azienda USL di Modena, Modena, Emilia-Romagna, Italy
| | - Maria Ferri
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Giulia Ligabue
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Gabriele Donati
- Nephrology, Dialysis and Kidney Transplant Unit, Azienda Ospedaliero-Universitaria di Modena, Modena, Emilia-Romagna, Italy
- Surgical, Medical, Dental and Morphological Sciences Department (CHIMOMO), University of Modena and Reggio Emilia, Modena, Emilia-Romagna, Italy
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Choo YH, Shim Y, Kim H, Goh HY, Kim SJ, Kim EJ, Kang CK, Ha EJ. Significant Reduction in External Ventricular Drain-Related Infections After Introducing a Novel Bundle Protocol: A Before and After Trial. J Korean Med Sci 2023; 38:e386. [PMID: 38147836 PMCID: PMC10752748 DOI: 10.3346/jkms.2023.38.e386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 10/12/2023] [Indexed: 12/28/2023] Open
Abstract
BACKGROUND External ventricular drain (EVD)-related infection (ERI) is a serious complication in neurosurgical patients. The estimated ERI rates range from 5 to 20 cases per 1,000 EVD catheter days. The pathophysiology of ERI is similar to central line-associated bloodstream infections (CLABSIs) stemming from skin-derived bacterial colonization. The use of bundle management can reduce CLABSI rates. Due to the pathogenic similarities between infections related to the two devices, we developed and evaluated the effectiveness of an ERI-bundle protocol based on CLABSI bundles. METHODS From November 2016 to November 2021, we conducted a study to evaluate the effectiveness of an ERI-bundle protocol. This study adopted a before-and-after trial, comparing the ERI rates for the 2 years before and 3 years after the introduction of the newly developed ERI-bundle protocol. We also analyzed the contributing factors to ERI using logistic regression analysis. RESULTS A total of 183 patients with 2,381 days of catheter use were analyzed. The ERI rate decreased significantly after the ERI-bundle protocol from 16.7% (14 of 84; 14.35 per 1,000 catheter days) to 4.0% (4 of 99; 3.21 per 1,000 catheter days) (P = 0.004). CONCLUSION Introduction of the ERI-bundle protocol was very effective in reducing ERI.
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Affiliation(s)
- Yoon-Hee Choo
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngbo Shim
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea
| | - Hyeseon Kim
- Department of Neurosurgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Hye Yeon Goh
- Center for Infection Control and Prevention, Seoul National University Hospital, Seoul, Korea
| | - Su Jung Kim
- Department of Nursing, Seoul National University Hospital, Seoul, Korea
| | - Eun Jin Kim
- Department of Nursing, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea
| | - Chang Kyung Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Eun Jin Ha
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.
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Jiang Q, Deng Y, Li S, Yang D, Tao L. Sub-lethal concentrations of chlorhexidine inhibit Candida albicans growth by disrupting ROS and metal ion homeostasis. J Oral Microbiol 2023; 15:2278937. [PMID: 38415078 PMCID: PMC10898817 DOI: 10.1080/20002297.2023.2278937] [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: 10/27/2022] [Accepted: 10/31/2023] [Indexed: 02/29/2024] Open
Abstract
Candida albicans is a normal resident of the human oral cavity. It is also the most common fungal pathogen, causing various oral diseases, particularly in immunocompromised individuals. Chlorhexidine digluconate (CHG) is a broad-spectrum antimicrobial agent widely used in dental practice and has been recommended to treat oral candidiasis. However, its action mechanism against the fungal pathogen C. albicans remains poorly understood. The aim of the present study was to investigate the effect of CHG at sub-lethal concentrations against C. albicans. CHG inhibited the growth of C. albicans in a dose- and time-dependent manner. Cells treated with CHG exhibited altered membrane permeability, reduced metabolic activity, and enhanced metal ion and reactive oxygen species (ROS) accumulation. Copper-sensing transcription factor Mac1, iron-sensing transcription factors Sfu1 and Sef2, and copper transporter Ctr1 regulated intracellular metal ion and ROS homeostasis in response to CHG. Deletion of MAC1, SFU1, or SEF2 increased intracellular ROS production and cell susceptibility to CHG. This study revealed a novel mechanism by which CHG induced apoptosis of C. albicans cells through the disruption of metal ion and ROS homeostasis, which may help to identify new targets for fungal infections.
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Affiliation(s)
- Qian Jiang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Department of Stomatology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Yuchen Deng
- Department of Dermatology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shuaihu Li
- Department of Infectious Diseases, Huashan Hospital, Shanghai Institute of Infectious Disease and Biosecurity and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Deqin Yang
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Li Tao
- Department of Infectious Diseases, Huashan Hospital, Shanghai Institute of Infectious Disease and Biosecurity and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
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Su Y, Yrastorza JT, Matis M, Cusick J, Zhao S, Wang G, Xie J. Biofilms: Formation, Research Models, Potential Targets, and Methods for Prevention and Treatment. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203291. [PMID: 36031384 PMCID: PMC9561771 DOI: 10.1002/advs.202203291] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/31/2022] [Indexed: 05/28/2023]
Abstract
Due to the continuous rise in biofilm-related infections, biofilms seriously threaten human health. The formation of biofilms makes conventional antibiotics ineffective and dampens immune clearance. Therefore, it is important to understand the mechanisms of biofilm formation and develop novel strategies to treat biofilms more effectively. This review article begins with an introduction to biofilm formation in various clinical scenarios and their corresponding therapy. Established biofilm models used in research are then summarized. The potential targets which may assist in the development of new strategies for combating biofilms are further discussed. The novel technologies developed recently for the prevention and treatment of biofilms including antimicrobial surface coatings, physical removal of biofilms, development of new antimicrobial molecules, and delivery of antimicrobial agents are subsequently presented. Finally, directions for future studies are pointed out.
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Affiliation(s)
- Yajuan Su
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Jaime T. Yrastorza
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Mitchell Matis
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Jenna Cusick
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Siwei Zhao
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Guangshun Wang
- Department of Pathology and MicrobiologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Jingwei Xie
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
- Department of Mechanical and Materials EngineeringCollege of EngineeringUniversity of Nebraska‐LincolnLincolnNE68588USA
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Niemann B, Dudas L, Gray D, Pettit A, Wilson A, Bardes JM. Biofilm Formation on Central Venous Catheters: A Pilot Study. J Surg Res 2022; 280:123-128. [PMID: 35964484 DOI: 10.1016/j.jss.2022.06.072] [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: 12/31/2021] [Revised: 06/15/2022] [Accepted: 06/29/2022] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Central line-associated bloodstream infection is a complication with serious consequences and biofilm development is thought to play a role. This study evaluated the impact of sterilization technique on central venous catheter (CVC) biofilm formation. MATERIALS AND METHODS This pilot study was conducted in the surgical intensive care unit of a tertiary care facility. All CVCs were inserted with chlorhexidine preparation (CHG). CHG-only CVCs were compared to the use of CHG with chlorhexidine gluconate-impregnated sponge (CHGIS). After removal, a punch biopsy of the CVC was taken at the noted skin level. Scanning electron microscopy identified the stage of biofilm. Confocal laser scanning microscopy with SYPRO stain confirmed the presence of glycocalyx and a volumetric analysis was completed. RESULTS Twenty four CVCs were collected. Indications for line placement were similar, with 42% placed for sepsis in the CHGIS group and 33% in the CHG group. There were no positive line cultures or bacteremia and 2/12 CHGIS patients had candidemia. CHGIS lines were in place for a mean of 91 h, compared to 60 h with CHG alone (P = 0.19). The interior of CVCs had lower stage biofilms than the exterior and lacked stage 4 biofilms. Stage 4 biofilms were present externally on 50% of CVCs (8/12 CHG and 4/12 CHGIS). Stage 3 biofilms were present on 7/12 CHG and 6/12 CHGIS interior samples. Volume analysis found an increase in biofilm and glycocalyx in CHGIS compared to CHG samples. CONCLUSIONS This study identified biofilms on both surfaces of CVCs. No significant difference in biofilm formation was found based on a sterilization technique.
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Affiliation(s)
| | | | - Dana Gray
- Medical Center Drive, Morgantown, West Virginia
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Lin MR, Chang PJ, Hsu PC, Lin CS, Chiu CH, Chen CJ. Comparison of Efficacy of 2% Chlorhexidine Gluconate-Alcohol and 10% Povidone-Iodine-Alcohol against Catheter-Related Bloodstream Infections and Bacterial Colonization at Central Venous Catheter Insertion Sites: A Prospective, Single-Center, Open-Label, Crossover Study. J Clin Med 2022; 11:jcm11082242. [PMID: 35456335 PMCID: PMC9031555 DOI: 10.3390/jcm11082242] [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: 03/11/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 12/04/2022] Open
Abstract
An effective antiseptic agent is an essential component of a central venous catheter (CVC) care bundle, to protect against catheter-related bloodstream infections (CRBSIs). We conducted a trial to compare the incidences of CRBSI and the growth of insertion site flora in patients with CVC using 2% chlorhexidine gluconate−alcohol (CHG) or 10% povidone-iodine−alcohol (PVI) in the CVC care bundle. Patients who were admitted to two medical intensive care units (ICUs) and had CVC placement for >48 h were enrolled. Using a two-way crossover design with two six-month interventions, the ICUs were assigned to use either CHG or PVI in their care bundles. A total of 446 catheters in 390 subjects were enrolled in the study. The detection rate of flora was greater in the PVI group on both day 7 (26.6% versus 6.3%, p < 0.001) and day 14 (43.2% versus 15.8%, p < 0.001). The incidence rate of CRBSI was higher in the PVI group compared to the CHG group (2.15 vs. 0 events per 1000-catheter-days, p = 0.001), although the significance was lost in the multivariate analysis. In conclusion, 2% CHG was superior to 10% PVI in the CVC care bundle in terms of the inhibition of skin flora growth at CVC insertion sites and was potentially associated with lower incidence rates of CRBSI.
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Affiliation(s)
- Ming-Ru Lin
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.-R.L.); (C.-H.C.)
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (P.-J.C.); (P.-C.H.)
| | - Po-Jui Chang
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (P.-J.C.); (P.-C.H.)
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei 105, Taiwan
| | - Ping-Chih Hsu
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (P.-J.C.); (P.-C.H.)
- Division of Thoracic Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chun-Sui Lin
- Infection Control Committee, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
| | - Cheng-Hsun Chiu
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.-R.L.); (C.-H.C.)
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (P.-J.C.); (P.-C.H.)
- Molecular Infectious Diseases Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chih-Jung Chen
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (M.-R.L.); (C.-H.C.)
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (P.-J.C.); (P.-C.H.)
- Molecular Infectious Diseases Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Correspondence: or ; Tel.: +886-3-3288957
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Influential Papers that Shaped Paradigms and Changed Practice in Infection Prevention in the Last 60 Years: Then, Now, and Future Directions. Curr Infect Dis Rep 2022. [DOI: 10.1007/s11908-022-00775-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Utility of anti-thrombotic coating (SEC-1 coating) for Peripherally Inserted Central Catheters. CLINICAL NUTRITION OPEN SCIENCE 2022. [DOI: 10.1016/j.nutos.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Synergistic In Vitro Antimicrobial Activity of Pomegranate Rind Extract and Zinc (II) against Micrococcus luteus under Planktonic and Biofilm Conditions. Pharmaceutics 2021; 13:pharmaceutics13060851. [PMID: 34201223 PMCID: PMC8230037 DOI: 10.3390/pharmaceutics13060851] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/24/2021] [Accepted: 05/31/2021] [Indexed: 01/02/2023] Open
Abstract
Infectious diseases caused by microbial biofilms are a major clinical problem, and new antimicrobial agents that can inhibit biofilm formation and eradicate pre-formed biofilms are urgently needed. Pomegranate extracts are a well-established folkloric medicine and have been used in the treatment of infectious diseases since ancient times, whilst the addition of metal ions, including zinc (II), has enhanced the antimicrobial activity of pomegranate. Micrococcus luteus is generally a non-pathogenic skin commensal bacterium, although it can act as an opportunistic pathogen and cause serious infections, particularly involving catheterization and comorbidities. The aims of this study were to evaluate the holistic activity of pomegranate rind extract (PRE), Zn (II), and PRE/Zn (II) individually and in combination against M. luteus under both planktonic and biofilm conditions. Antimicrobial activity was detected in vitro using the broth dilution method, and synergistic activity was determined using checkerboard and time-kill assays. Effects on biofilm formation and eradication were determined by crystal violet and BacLightTM Live/Dead staining. PRE and Zn (II) exerted antimicrobial activity against M. luteus under both planktonic and biofilm conditions. After 4 h, potent synergistic bactericidal activity was also found when PRE and Zn (II) were co-administered under planktonic conditions (log reductions: PRE 1.83 ± 0.24, Zn (II) 3.4 ± 0.08, and PRE/Zn (II) 6.88 ± 1.02; p < 0.0001). In addition, greater heterogeneity was induced in the structure of M. luteus biofilm using the PRE/Zn (II) combination compared to when PRE and Zn (II) were applied individually. The activity of PRE and the PRE/Zn (II) combination could offer a novel antimicrobial therapy for the treatment of disease-associated infections caused by M. luteus and potentially other bacteria.
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Liu L, Shi H, Yu H, Yan S, Luan S. The recent advances in surface antibacterial strategies for biomedical catheters. Biomater Sci 2021; 8:4095-4108. [PMID: 32555809 DOI: 10.1039/d0bm00659a] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
As one of the most common hospital-acquired infections, catheter-related infections (CRIs) which are caused by microbial colonization lead to increasing morbidity and mortality of patients and life threat for medical staffs. In this case, a variety of efforts have been made to design functional materials to limit bacterial colonization and biofilm formation. In this review, we focus on the recent advances in surface modification strategies of biomedical catheters used to prevent CRIs. The tests for the evaluation of the performances of modified catheters are listed. Future prospects of surface antibacterial strategies for biomedical catheters are also outlined.
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Affiliation(s)
- Lin Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hengchong Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Huan Yu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shunjie Yan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and National Engineering Laboratory of Medical Implantable Devices & Key Laboratory for Medical Implantable Devices of Shandong Province, WEGO Holding Company Limited, Weihai 264210, P. R. China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. and University of Science and Technology of China, Hefei, 230026, P. R. China
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Alves D, Borges P, Grainha T, Rodrigues CF, Pereira MO. Tailoring the immobilization and release of chlorhexidine using dopamine chemistry to fight infections associated to orthopedic devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111742. [PMID: 33545884 DOI: 10.1016/j.msec.2020.111742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 11/03/2020] [Accepted: 11/17/2020] [Indexed: 11/30/2022]
Abstract
A crucial factor in the pathogenesis of orthopedics associated infections is that bacteria do not only colonize the implant surface but also the surrounding tissues. This study aimed to engineer an antimicrobial release coating for stainless steel (SS) surfaces, to impart them with the ability to prevent Staphylococci colonization. Chlorhexidine (CHX) was immobilized using two polydopamine (pDA)-based approaches: a one-pot synthesis, where CHX is dissolved together with dopamine before its polymerization; and a two-step methodology, comprising the deposition of a pDA layer to which CHX is immobilized. To modulate CHX release, an additional layer of pDA was also added for both strategies. Immobilization of CHX using a one-step approach yielded surfaces with a more homogenous coating and less roughness than the other strategies. The amount of released CHX was lower for the one-step approach, as opposed to the two-step approach yielding the higher release, which could be decreased by applying an outward layer of pDA. Both one and two-step approaches provided the surfaces with the ability to prevent bacterial colonization of the surface itself and kill most of bacteria in the bulk phase up to 10 days. This long-term antimicrobial performance alluded a stable and enduring immobilization of CHX. In terms of biocompatibility, the amount of CHX released from the one-step approach did not compromise the growth of mammalian cells, contrary to the two-step strategy. Additionally, the few bacteria that managed to adhere to surfaces modified with one-step approach did not show evidence of resistance towards CHX. Overall data underline that one-step immobilization of CHX holds great potential to be further applied in the fight against orthopedic devices associated infections.
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Affiliation(s)
- Diana Alves
- CEB - Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Patrick Borges
- CEB - Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Tânia Grainha
- CEB - Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Célia F Rodrigues
- CEB - Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Maria Olívia Pereira
- CEB - Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Combatting fungal biofilm formation by diffusive release of fluconazole from heptylamine plasma polymer coating. Biointerphases 2020; 15:061012. [PMID: 33339460 DOI: 10.1116/6.0000511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A drug-eluting coating applied onto biomedical devices and implants is an appropriate way to ensure that an inhibitory concentration of antimicrobial drugs is present at the device surface, thus preventing surface colonization and subsequent biofilm formation. In this study, a thin polymer coating was applied to materials, and it acted as a drug-delivery reservoir capable of surface delivery of the antifungal drug fluconazole to amounts up to 21 μg/cm2. The release kinetics into aqueous solution were quantified by UV spectroscopy and conformed to the Ritger-Peppas and Korsmeyer-Peppas model. Complementary microbiological assays were used to determine effectiveness against Candida albicans attachment and biofilm formation, and against the control heptylamine plasma polymer coating without drug loading, on which substantial fungal growth occurred. Fluconazole release led to marked antifungal activity in all assays, with log 1.6 reduction in CFUs/cm2. Cell viability assays and microscopy revealed that fungal cells attached to the fluconazole-loaded coating remained rounded and did not form hyphae and biofilm. Thus, in vitro screening results for fluconazole-releasing surface coatings showed efficacy in the prevention of the formation of Candida albicans biofilm.
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Bandyopadhyay S, Jones A, McLean A, Sterner M, Robbins C, Cunningham M, Walters M, Doddapaneni K, Keitel I, Gallagher C. Slippery liquid infused fluoropolymer coating for central lines to reduce catheter associated clotting and infections. Sci Rep 2020; 10:14973. [PMID: 32917923 PMCID: PMC7486915 DOI: 10.1038/s41598-020-71711-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 08/18/2020] [Indexed: 11/08/2022] Open
Abstract
Thrombosis and infections are two grave, interrelated problems associated with the use of central venous catheters (CVL). Currently used antibiotic coated CVL has limited clinical success in resisting blood stream infection and may increase the risk of emerging antibiotic resistant strains. We report an antibiotic-free, fluoropolymer-immobilized, liquid perfluorocarbon-coated peripherally inserted central catheter (PICC) line and its effectiveness in reducing catheter associated thrombosis and pathogen colonization, as an alternative to antibiotic coated CVL. Commercially available polyurethane PICC catheter was modified by a three-step lamination process, with thin fluoropolymer layers to yield fluoropolymer-polyurethane-fluoropolymer composite structure before applying the liquid perfluorocarbon (LP). This high throughput process of modifying commercial PICC catheters with fluoropolymer is quicker, safer and shows higher thromboresistance than fluorinated, omniphobic catheter surfaces, produced by previously reported self-assembled monolayer deposition techniques. The LP immobilized on the fluoropolymer is highly durable in physiological flow conditions for over 60 days and continue to resist Staphylococcus colonization.
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Affiliation(s)
| | - Andrew Jones
- FreeFlow Medical Devices LLC, Lancaster, PA, USA
| | | | | | | | | | - Mark Walters
- Shared Material Instrumentation Facility, Duke University, Durham, NC, USA
| | | | - Isaac Keitel
- FreeFlow Medical Devices LLC, Lancaster, PA, USA
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Saidin S, Jumat MA, Mohd Amin NAA, Saleh Al-Hammadi AS. Organic and inorganic antibacterial approaches in combating bacterial infection for biomedical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111382. [PMID: 33254989 DOI: 10.1016/j.msec.2020.111382] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 02/01/2023]
Abstract
In spite of antibiotics, antibacterial agents or specifically known as antiseptics are actively explored for the prevention of infection-associated medical devices. Antibacterial agents are introduced to overcome the complication of bacterial resistance which devoted by antibiotics. It can be classified into inorganic and organic, that prominently have impacted bacterial retardation in their own killing mechanism patterns. Therefore, this review paper aimed to provide information on most common used inorganic and organic antibacterial agents which have potential to be utilized in biomedical applications, thus, classifying the trends of antibacterial mechanism on Gram-negative and Gram-positive bacteria. In the beginning, infectious diseases and associated biomedical infections were stated to expose current infection scenarios on medical devices. The general view, application, susceptible bacteria and activation mechanism of inorganic (silver, copper, gold and zinc) and organic (chlorhexidine, triclosan, polyaniline and polyethylenimine) antibacterial agents that are widely proposed for biomedical area, were then gathered and reviewed. In the latter part of the study, the intact mechanisms of inorganic and organic antibacterial agents in retarding bacterial growth were classified and summarized based on its susceptibility on Gram-negative and Gram-positive bacteria. Most of inorganic antibacterial agents are in the form of metal, which release its ions to retard prominently Gram-negative bacteria. While organic antibacterial agents are susceptible to Gram-positive bacteria through organelle modification and disturbance of bio-chemical pathway. However, the antibacterial effects of each antibacterial agent are also depending on its effective mechanism and the species of bacterial strain. These compilation reviews and classification mechanisms are beneficial to assist the selection of antibacterial agents to be incorporated on/within biomaterials, based on its susceptible bacteria. Besides, the combination of several antibacterial agents with different susceptibilities will cover a wide range of antibacterial spectrum.
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Affiliation(s)
- Syafiqah Saidin
- School of Biomedical Engineering & Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia; IJN-UTM Cardiovascular Engineering Centre, Institute for Human Centred Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia.
| | - Mohamad Amin Jumat
- School of Biomedical Engineering & Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
| | - Nur Ain Atiqah Mohd Amin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
| | - Abdullah Sharaf Saleh Al-Hammadi
- School of Biomedical Engineering & Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
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Chiaretti A, Pittiruti M, Sassudelli G, Conti G, Rossi M, Pulitanò SM, Mancino A, Pusateri A, Gatto A, Tosi F. Comparison between sedation room and operating room in central venous catheter positioning in children. J Vasc Access 2020; 22:184-188. [PMID: 32564667 DOI: 10.1177/1129729820932415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Placement of central venous access devices is a clinical procedure associated with some risk of adverse events and with a relevant cost. Careful choice of the device, appropriate insertion technique, and proper management of the device are well-known strategies commonly adopted to achieve an optimal clinical result. However, the environment where the procedure takes place may have an impact on the overall outcome in terms of safety and cost-effectiveness. METHODS We carried out a retrospective analysis on pediatric patients scheduled for a major neurosurgical operation, who required a central venous access device in the perioperative period. We divided the patients in two groups: in group A the central venous access device was inserted in the operating room, while in group B the central venous access device was inserted in the sedation room of our Pediatric Intensive Care Unit. We compared the two groups in terms of safety and cost-effectiveness. RESULTS We analyzed 47 central venous access devices in 42 children. There were no insertion-related complications. Only one catheter-related bloodstream infection was recorded, in group A. However, the costs related to central venous access device insertion were quite different: €330-€540 in group A versus €105-€135 in group B. CONCLUSION In the pediatric patient candidate to a major neurosurgical operation, preoperative insertion of the central venous access device in the sedation room rather than in the operating room is less expensive and equally safe.
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Affiliation(s)
- Antonio Chiaretti
- Department of Pediatrics, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Mauro Pittiruti
- Department of Surgery, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Giovanni Sassudelli
- Department of Pediatrics, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Giorgio Conti
- Pediatric Intensive Care Unit, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Marco Rossi
- Department of Anesthesia and Pain Therapy, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Silvia Maria Pulitanò
- Pediatric Intensive Care Unit, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Aldo Mancino
- Pediatric Intensive Care Unit, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Angela Pusateri
- Department of Anesthesia and Pain Therapy, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Antonio Gatto
- Department of Pediatrics, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
| | - Federica Tosi
- Department of Anesthesia and Pain Therapy, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy
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Malek AE, Raad II. Preventing catheter-related infections in cancer patients: a review of current strategies. Expert Rev Anti Infect Ther 2020; 18:531-538. [PMID: 32237923 DOI: 10.1080/14787210.2020.1750367] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Central line-associated bloodstream infections (CLABSI) are a frequent cause of healthcare-associated infections, increasing healthcare costs and decreasing the quality of life for critically and chronically ill patients such as those with cancer. These infections are largely preventable and have been significantly reduced throughout the United States. However, further reduction of CLABSI requires continued innovation in preventive strategies.Areas covered: We provide an overview of the recent medical literature on catheter-related infections among cancer patients, discussing epidemiology, risk factors, and pathogenesis of CLABSI with a focus on the newest and current preventive measures. The data discussed here were retrieved mainly from clinical trials, meta-analyses, and systematic reviews published in the English language using a MEDLINE database search from 1 January 1990 until the end of December 2019.Expert opinion: The growing impact of CLABSI on the healthcare setting and mortality and morbidity rates in cancer patients calls for novel technologies for preventing central line-related infections. Advances in antimicrobial lock therapy are not limited to salvage therapy but have also provided a novel and promising prophylactic approach to CLABSI. Also, the use of antimicrobial-coated catheters with chlorhexidine-impregnated dressings, along with the application of insertion and maintenance bundles, is an effective and cost-effective approach for preventing central line-related infections.
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Affiliation(s)
- Alexandre E Malek
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Issam I Raad
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
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Hornschuh M, Zwicker P, Schmidt T, Kramer A, Müller G. In vitro evaluation of contact-active antibacterial efficacy of Ti-Al-V alloys coated with the antimicrobial agent PHMB. Acta Biomater 2020; 106:376-386. [PMID: 32068136 DOI: 10.1016/j.actbio.2020.02.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/03/2020] [Accepted: 02/11/2020] [Indexed: 12/31/2022]
Abstract
Immobilized polycationic substances on biomaterial surfaces kill adhering bacteria upon contact and are considered a promising non-antibiotic alternative. Unfortunately, there is no generally accepted in vitro method for quantitatively evaluating the antibacterial efficacy of contact-active non-leachable antimicrobial surfaces. Moreover, guidelines of generally accepted international industrial standards do not reflect the basic principle of bacterial contamination and/or are performed in the presence of a solid covering material. Therefore, in the present study, six bacterial adherence tests on non-porous surfaces with no covering material were compared with respect to their efficacy and reproducibility, as well as to evaluate the bactericidal contact-killing of relevant device-associated slime-producing bacteria using antimicrobially coated Ti6Al4V surfaces with positively-charged poly(hexamethylene biguanide) hydrochloride (PHMB). After direct bacterial inoculation to simulate a perioperative infection, non-leaching PHMB reacts bactericidally against the slime-producing bacteria Staphylococcus aureus, Staphylococcus epidermidis, and Pseudomonas aeruginosa after surface contact. The 6-h drop technique was found to be a suitable method to quantitatively evaluate contact-active antibacterial surfaces. Adjunctively, however, damage of bacterial membrane integrity should be confirmed by LIVE/DEAD staining and the presence of non-leaching agents. STATEMENT OF SIGNIFICANCE: Unintentional perioperative bacterial adhesion to implant surfaces can generate biomaterial-associated infections. Adhered bacteria produce biofilms that protect them from antibiotic attack, which may be complicated by possible antibiotic resistance. Polycationic surfaces can prevent such unwanted biofilm formation by killing bacteria upon initial contact. Unfortunately, no reliable in vitro methods exist to evaluate the efficacy of contact-active antimicrobial surfaces. In this study, we show that the 6-h drop technique may be a suitable method to evaluate positively-charged contact-killing surfaces. Identification of suitable screening assays for evaluating the bactericidal efficacy of non-leachable antimicrobial agents will greatly improve this newly developing field as a prophylactic alternative to postoperative treatment of implant-associated infections by antibiotics.
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Lee Y, Ryu JA, Kim YO, Gil E, Song YM. Safety and feasibility of ultrasound-guided insertion of peripherally inserted central catheter performed by an intensive care trainee. JOURNAL OF NEUROCRITICAL CARE 2020. [DOI: 10.18700/jnc.190114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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19
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Reitzel RA, Rosenblatt J, Gerges BZ, Jarjour A, Fernández-Cruz A, Raad II. The potential for developing new antimicrobial resistance from the use of medical devices containing chlorhexidine, minocycline, rifampicin and their combinations: a systematic review. JAC Antimicrob Resist 2020; 2:dlaa002. [PMID: 34222960 PMCID: PMC8210168 DOI: 10.1093/jacamr/dlaa002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/04/2019] [Accepted: 12/15/2019] [Indexed: 12/13/2022] Open
Abstract
Background Catheter infections remain one of the most persistent adverse events causing significant morbidity, economic impact and mortality. Several strategies have been proposed to reduce these infections including the use of catheters embedded with antibiotics and/or antiseptics. One reoccurring challenge is the fear that antimicrobial medical devices will induce resistance. The aim of this systematic review is to evaluate the evidence for induced antimicrobial resistance caused by exposure to antimicrobial medical devices. Methods Four electronic databases [MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Scopus] were screened for studies published between 1983 and 2019 regarding assessment of microbial resistance with use of medical devices containing chlorhexidine, minocycline, rifampicin or combinations thereof. Development of new resistance, selection for tolerant organisms and 'no change in resistance' were assessed. Results Forty-four publications, grouped by study type and stratified by drug assessed, were included for analyses. The majority of studies found no change in resistance after exposure to antimicrobial medical devices (13 in vitro, 2 in vivo, 20 clinical). Development of new resistance was commonly reported with the use of rifampicin as a single agent and only reported in one study assessing the minocycline/rifampicin combination (M/R); however, the increase in MIC was well below clinical relevance. Conclusions Emergence of new resistance to combinations of M/R, minocycline/rifampicin/chlorhexidine (M/R/CH) and chlorhexidine/silver sulfadiazine (CHXSS) was rare. No clinical trials confirmed its occurrence and some refuted it. The risk of development of new resistance to these antimicrobial combinations appears more fear-based than substantiated by clinical and experimental evidence but warrants continued surveillance.
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Affiliation(s)
- Ruth A Reitzel
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Joel Rosenblatt
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bahgat Z Gerges
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Andrew Jarjour
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ana Fernández-Cruz
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Issam I Raad
- Department of Infectious Diseases, Infection Control and Employee Health, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Abstract
These practice guidelines update the Practice Guidelines for Central Venous Access: A Report by the American Society of Anesthesiologists Task Force on Central Venous Access, adopted by the American Society of Anesthesiologists in 2011 and published in 2012. These updated guidelines are intended for use by anesthesiologists and individuals under the supervision of an anesthesiologist and may also serve as a resource for other physicians, nurses, or healthcare providers who manage patients with central venous catheters.
Supplemental Digital Content is available in the text.
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21
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Javeri Y, Jagathkar G, Dixit S, Chaudhary D, Zirpe KG, Mehta Y, Govil D, Mishra RC, Samavedam S, Pandit RA, Savio RD, Clerk AM, Srinivasan S, Juneja D, Ray S, Sahoo TK, Jakkinaboina S, Jampala N, Jain R. Indian Society of Critical Care Medicine Position Statement for Central Venous Catheterization and Management 2020. Indian J Crit Care Med 2020; 24:S6-S30. [PMID: 32205954 PMCID: PMC7085816 DOI: 10.5005/jp-journals-10071-g23183] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background and Purpose Short-term central venous catheterization (CVC) is one of the commonly used invasive interventions in ICU and other patient-care areas. Practice and management of CVC is not standardized, varies widely, and need appropriate guidance. Purpose of this document is to provide a comprehensive, evidence-based and up-to-date, one document source for practice and management of central venous catheterization. These recommendations are intended to be used by critical care physicians and allied professionals involved in care of patients with central venous lines. Methods This position statement for central venous catheterization is framed by expert committee members under the aegis of Indian Society of Critical Care Medicine (ISCCM). Experts group exchanged and reviewed the relevant literature. During the final meeting of the experts held at the ISCCM Head Office, a consensus on all the topics was made and the recommendations for final document draft were prepared. The final document was reviewed and accepted by all expert committee members and after a process of peer-review this document is finally accepted as an official ISCCM position paper. Modified grade system was utilized to classify the quality of evidence and the strength of recommendations. The draft document thus formulated was reviewed by all committee members; further comments and suggestions were incorporated after discussion, and a final document was prepared. Results This document makes recommendations about various aspects of resource preparation, infection control, prevention of mechanical complication and surveillance related to short-term central venous catheterization. This document also provides four appendices for ready reference and use at institutional level. Conclusion In this document, committee is able to make 54 different recommendations for various aspects of care, out of which 40 are strong and 14 weak recommendations. Among all of them, 42 recommendations are backed by any level of evidence, however due to paucity of data on 12 clinical questions, a consensus was reached by working committee and practice recommendations given on these topics are based on vast clinical experience of the members of this committee, which makes a useful practice point. Committee recognizes the fact that in event of new emerging evidences this document will require update, and that shall be provided in due time. Abbreviations list ABHR: Alcohol-based hand rub; AICD: Automated implantable cardioverter defibrillator; BSI: Blood stream infection; C/SS: CHG/silver sulfadiazine; Cath Lab: Catheterization laboratory (Cardiac Cath Lab); CDC: Centers for Disease Control and Prevention; CFU: Colony forming unit; CHG: Chlorhexidine gluconate; CL: Central line; COMBUX: Comparison of Bedside Ultrasound with Chest X-ray (COMBUX study); CQI: Continuous quality improvement; CRBSI: Catheter-related blood stream infection; CUS: Chest ultrasonography; CVC: Central Venous Catheter; CXR: Chest X-ray; DTTP: Differential time to positivity; DVT: Deep venous thrombosis; ECG: Electrocardiography; ELVIS: Ethanol lock and risk of hemodialysis catheter infection in critically ill patients; ER: Emergency room; FDA: Food and Drug Administration; FV: Femoral vein; GWE: Guidewire exchange; HD catheter: Hemodialysis catheter; HTS: Hypertonic saline; ICP: Intracranial pressure; ICU: Intensive Care Unit; IDSA: Infectious Disease Society of America; IJV: Internal jugular vein; IPC: Indian penal code; IRR: Incidence rate ratio; ISCCM: Indian Society of Critical Care Medicine; IV: Intravenous; LCBI: Laboratory confirmed blood stream infection; M/R: Minocycline/rifampicin; MBI-LCBI: Mucosal barrier injury laboratory-confirmed bloodstream infection; MRSA: Methicillin-resistant Staphylococcus aureus; NHS: National Health Service (UK); NHSN: National Healthcare Safety Network (USA); OT: Operation Theater; PICC: Peripherally-inserted central catheter; PIV: Peripheral intravenous line; PL: Peripheral line; PVI: Povidone-iodine; RA: Right atrium; RCT: Randomized controlled trial; RR: Relative risk; SCV/SV: Subclavian vein; ScVO2: Central venous oxygen saturation; Sn: Sensitivity; SOP: Standard operating procedure; SVC: Superior vena cava; TEE: Transesophageal echocardiography; UPP: Useful Practice Points; USG: Ultrasonography; WHO: World Health Organization How to cite this article Javeri Y, Jagathkar G, Dixit S, Chaudhary D, Zirpe KG, Mehta Y, et al. Indian Society of Critical Care Medicine Position Statement for Central Venous Catheterization and Management 2020. Indian J Crit Care Med 2020;24(Suppl 1):S6–S30.
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Affiliation(s)
- Yash Javeri
- Department of Critical Care, Anesthesia and Emergency Medicine, Regency Health, Lucknow, Uttar Pradesh, India, , e-mail:
| | - Ganshyam Jagathkar
- Department of Critical Care Medicine, Medicover Hospital, Hyderabad, Telangana, India, e-mail:
| | - Subhal Dixit
- Department of Critical Care Medicine, Sanjeevan & MJM Hospital, Pune, Maharashtra, India, e-mail:
| | - Dhruva Chaudhary
- Department of Pulmonary and Critical Care, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India, , e-mail:
| | - Kapil Gangadhar Zirpe
- Department of Neuro Trauma Unit, Grant Medical Foundation, Pune, Maharashtra, India, , e-mail:
| | - Yatin Mehta
- Department of Critical Care and Anesthesiology, Medanta The Medicity, Sector-38, Gurgaon, Haryana, India, Extn. 3335, e-mail:
| | - Deepak Govil
- Department of Critical Care, Medanta Hospital, The Medicity, Gurugram, Haryana, India, , e-mail:
| | - Rajesh C Mishra
- Department of Critical Care, Saneejivini Hospital, Vastrapur, Ahmedabad, Gujarat, India, , e-mail:
| | - Srinivas Samavedam
- Department of Critical Care, Virinchi Hospital, Hyderabad, Telangana, India, , e-mail:
| | - Rahul Anil Pandit
- Department of Intensive Care Unit, Fortis Hospital, Mumbai, Maharashtra, India, , e-mail:
| | - Raymond Dominic Savio
- Department of Critical Care Medicine, Apollo Hospital, Chennai, Tamil Nadu, India, e-mail:
| | - Anuj M Clerk
- Department of Intensive Care, Services Sunshine Global Hospital, Surat, Gujarat, India, e-mail:
| | - Shrikanth Srinivasan
- Department of Critical Care Medicine, Manipal Hospital, New Delhi, India, , e-mail:
| | - Deven Juneja
- Department of Critical Care Medicine, Max Superspecialty Hospital, New Delhi, India, , e-mail:
| | - Sumit Ray
- Department of Critical Care, Artemis Hospital, Gurugram, Haryana, India, e-mail:
| | - Tapas Kumar Sahoo
- Department of Critical Care, Medanta Hospital, Ranchi, Jharkhand, India, , e-mail:
| | - Srinivas Jakkinaboina
- Department of Critical Care Medicine, Citizens Specialty Hospital, Hyderabad, Telangana, India, , e-mail:
| | - Nandhakishore Jampala
- Department of Critical Care, Medicover Hospital, Hyderabad, Telangana, India, , e-mail:
| | - Ravi Jain
- Department of Critical Care Medicine, Nayati Medicity, Mathura, Uttar Pradesh, India, , e-mail:
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Effect of Polymer Demixed Nanotopographies on Bacterial Adhesion and Biofilm Formation. Polymers (Basel) 2019; 11:polym11121921. [PMID: 31766551 PMCID: PMC6960884 DOI: 10.3390/polym11121921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/14/2019] [Accepted: 11/19/2019] [Indexed: 11/22/2022] Open
Abstract
As the current global threat of antimicrobial resistance (AMR) persists, developing alternatives to antibiotics that are less susceptible to resistance is becoming an urgent necessity. Recent advances in biomaterials have allowed for the development and fabrication of materials with discrete surface nanotopographies that can deter bacteria from adhering to their surface. Using binary polymer blends of polystyrene (PS), poly(methyl methacrylate) (PMMA) and polycaprolactone (PCL) and varying their relative concentrations, PS/PCL, PS/PMMA and PCL/PMMA polymer demixed thin films were developed with nanoisland, nanoribbon and nanopit topographies. In the PS/PCL system, PS segregates to the air-polymer interface, with the lower solubility PCL preferring the substrate-polymer interface. In the PS/PMMA and PCL/PMMA systems, PMMA prefers the air-polymer interface due to its greater solubility and lower surface energy. The anti-adhesion efficacy of the demixed films were tested against Pseudomonas aeruginosa (PA14). PS/PCL and PCL/PMMA demixed films showed a significant reduction in cell counts adhered on their surfaces compared to pure polymer control films, while no reduction was observed in the counts adhered on PS/PMMA demixed films. While the specific morphology did not affect the adhesion, a relationship between bacterial cell and topographical surface feature size was apparent. If the surface feature was smaller than the cell, then an anti-adhesion effect was observed; if the surface feature was larger than the cell, then the bacteria preferred to adhere.
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Limaye SS, Mastrangelo CM. Systems Modeling Approach for Reducing the Risk of Healthcare-Associated Infections. Adv Health Care Manag 2019; 18. [PMID: 32077650 DOI: 10.1108/s1474-823120190000018013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Healthcare-associated infections (HAIs) are a major cause of concern because of the high levels of associated morbidity, mortality, and cost. In addition, children and intensive care unit (ICU) patients are more vulnerable to these infections due to low levels of immunity. Various medical interventions and statistical process control techniques have been suggested to counter the spread of these infections and aid early detection of an infection outbreak. Methods such as hand hygiene help in the prevention of HAIs and are well-documented in the literature. This chapter demonstrates the utilization of a systems methodology to model and validate factors that contribute to the risk of HAIs in a pediatric ICU. It proposes an approach that has three unique aspects: it studies the problem of HAIs as a whole by focusing on several HAIs instead of a single type, it projects the effects of interventions onto the general patient population using the system-level model, and it studies both medical and behavioral interventions and compares their effectiveness. This methodology uses a systems modeling framework that includes simulation, risk analysis, and statistical techniques for studying interventions to reduce the transmission likelihood of HAIs.
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Jackson ML, Ruppert KA, Kota DJ, Prabhakara KS, Hetz RA, Aertker BM, Bedi S, Mays RW, Olson SD, Cox CS. Clinical parameters affecting multipotent adult progenitor cells in vitro. Heliyon 2019; 5:e02532. [PMID: 31667385 PMCID: PMC6812213 DOI: 10.1016/j.heliyon.2019.e02532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/23/2019] [Accepted: 09/25/2019] [Indexed: 12/13/2022] Open
Abstract
Background Human multipotent adult progenitor cells (MAPC®) are an emerging therapy for traumatic brain injury (TBI); however, clinically translating a therapy involves overcoming many factors in vivo which are not present in pre-clinical testing. In this study we examined clinical parameters in vitro that may impact cell therapy efficacy. Methods MAPC were infused through varying gauged needles and catheters with and without chlorhexidine, and their viability tested with trypan blue exclusion. MAPC were co-cultured with phenytoin and celecoxib at relevant clinical concentrations for 1 h and 24 h. Anti-inflammatory potency was tested using a stimulated rat splenocyte co-culture and ELISA for TNF-α production. MAPC were cultured under different osmolar concentrations and stained with propidium iodide for viability. Anti-inflammatory potency was tested by co-culture of MAPC with naïve lymphocytes activated by CD3/CD28 beads, and Click-iT® Plus EdU was used to quantify proliferation by flow cytometry. Results The mean viability of the MAPC infused via needles was 95 ± 1%; no difference was seen with varying flow rate, but viability was notably reduced by chlorhexidine. MAPC function was not impaired by co-culture with phenytoin, celecoxib, or combination with both. Co-culture with phenytoin showed a decrease in TNF-α production as compared to the MAPC control. MAPC cultured at varying osmolar concentrations all had viabilities greater than 90% with no statistical difference between them. Co-culture of MAPC with CD3/CD28 activated PBMCs showed a significant reduction in proliferation as measured by EdU uptake. Discussion Needle diameter, phenytoin, celecoxib, and a relevant range of osmolarities do not impair MAPC viability or anti-inflammatory potency in vitro.
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Affiliation(s)
- Margaret L Jackson
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Katherine A Ruppert
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Daniel J Kota
- Emory Personalized Immunotherapy Core, Emory University, United States
| | - Karthik S Prabhakara
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Robert A Hetz
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States.,Departments of Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Benjamin M Aertker
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Supinder Bedi
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | | | - Scott D Olson
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
| | - Charles S Cox
- Departments of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States.,Departments of Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston, United States
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Validity of surrogate endpoints assessing central venous catheter-related infection: evidence from individual- and study-level analyses. Clin Microbiol Infect 2019; 26:563-571. [PMID: 31586658 DOI: 10.1016/j.cmi.2019.09.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The prevention of catheter-related bloodstream infection (CRBSI) has been an area of intense research, but the heterogeneity of endpoints used to define catheter infection makes the interpretation of randomized controlled trials (RCTs) problematic. The aim of this study was to determine the validity of different endpoints for central venous catheter infections. DATA SOURCES (a) Individual-catheter data were collected from 9428 catheters from four large RCTs; (b) study-level data from 70 RCTs were identified with a systematic search. Eligible studies were RCTs published between January 1987 and October 2018 investigating various interventions to reduce infections from short-term central venous catheters or short-term dialysis catheters. For each RCT the prevalence rates of CRBSI, quantitative catheter tip colonization, catheter-associated infection (CAI) and central line-associated bloodstream infection (CLABSI) were extracted for each randomized study arm. METHODS CRBSI was used as the gold-standard endpoint, for which colonization, CAI and CLABSI were evaluated as surrogate endpoints. Surrogate validity was assessed as (1) the individual partial coefficient of determination (individual-pR2) using individual catheter data; (2) the coefficient of determination (study-R2) from mixed-effect models regressing the therapeutic effect size of the surrogates on the effect size of CRBSI, using study-level data. RESULTS Colonization showed poor agreement with CRBSI at the individual-patient level (pR2 = 0.33 95% CI 0.28-0.38) and poor capture at the study level (R2 = 0.42, 95% CI 0.21-0.58). CAI showed good agreement with CRBSI at the individual-patient level (pR2 = 0.80, 95% CI 0.76-0.83) and moderate capture at the study level (R2 = 0.71, 95% CI 0.51-0.85). CLABSI showed poor agreement with CRBSI at the individual patient level (pR2 = 0.34, 95% CI 0.23-0.46) and poor capture at the study level (R2 = 0.28, 95% CI 0.07-0.76). CONCLUSIONS CAI is a moderate to good surrogate endpoint for CRBSI. Colonization and CLABSI do not reliably reflect treatment effects on CRBSI and are consequently more suitable for surveillance than for clinical effectiveness research.
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Caroleo B, Malandrino P, Liberto A, Condorelli D, Patanè F, Maiese A, Casella F, Geraci D, Ricci P, Di Mizio G. Catheter-related Bloodstream Infections: A Root Cause Analysis in a Series of Simultaneous Ochrobactrum anthropi Infections. Curr Pharm Biotechnol 2019; 20:609-614. [DOI: 10.2174/1389201020666190405182025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/28/2018] [Accepted: 03/20/2019] [Indexed: 11/22/2022]
Abstract
Objective:Catheter-related bloodstream infections (CRBSIs) pathogenesis is complex and multifactorial mostly due to cutaneous microorganisms migration through the catheter insertion site and catheter tip colonization. Ochrobactrum anthropi is a gram-negative bacterium belonging to the Brucellaceae and related infections are especially observed in immunocompromised patients.Methods:Therefore, O. anthropi infection prevention and surveillance are relevant issues for healthcare system and risk management, in order to improve healthcare quality and patient safety. Four cases of anthropi-related CRBSIs occurring in immunodepressed patients under chemotherapy treatment are reported and the possible prevention and surveillance strategies are analyzed.Results:In the reported cases, all infections occurred almost simultaneously in the Oncology Unit, leading to hypothesize an identical infection source. Subsequently, a clinical audit was performed in order to investigate infection origin and implement prevention and control strategies. Clinical audit allowed to identify the hand hygiene defects as the primary source of the infections, responsible for catheter flushing solution contamination.Conclusion:The aim of this study is to reveal how through correct root cause analysis and clinical audit, several measures could be undertaken in order to promote the prevention of the CRBSIs risk
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Affiliation(s)
- Benedetto Caroleo
- Department of Medical Science, and Elderly Operative Unit, Mater Domini Hospital, University of Catanzaro, Catanzaro, Italy
| | - Pasquale Malandrino
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania – A.O.U. "Policlinico V. Emanuele", Catania, Italy
| | - Aldo Liberto
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania – A.O.U. "Policlinico V. Emanuele", Catania, Italy
| | - Dario Condorelli
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania – A.O.U. "Policlinico V. Emanuele", Catania, Italy
| | - Federico Patanè
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania – A.O.U. "Policlinico V. Emanuele", Catania, Italy
| | - Aniello Maiese
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Filomena Casella
- Legal Medicine, Department of Law, Economy and Sociology University of Catanzaro, Catanzaro, Italy
| | - Diego Geraci
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania – A.O.U. "Policlinico V. Emanuele", Catania, Italy
| | - Pietrantonio Ricci
- Institute of Legal Medicine, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Giulio Di Mizio
- Legal Medicine, Department of Law, Economy and Sociology University of Catanzaro, Catanzaro, Italy
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Kim YO, Chung CR, Gil E, Park CM, Suh GY, Ryu JA. Safety and feasibility of ultrasound-guided placement of peripherally inserted central catheter performed by neurointensivist in neurosurgery intensive care unit. PLoS One 2019; 14:e0217641. [PMID: 31150465 PMCID: PMC6544252 DOI: 10.1371/journal.pone.0217641] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/15/2019] [Indexed: 02/06/2023] Open
Abstract
We evaluated the safety and feasibility of ultrasound-guided peripherally-inserted central venous catheters (PICC) by a neurointensivist at the bedside compared to fluoroscopy-guided PICC and conventional central venous catheter (CCVC). This was a retrospective study of adult patients who underwent central line placement and were admitted to the neurosurgical intensive care unit (ICU) between January 2014 and March 2018. In this study, the primary endpoint was central line-induced complications. The secondary endpoint was initial success of central line placement. Placements of ultrasound-guided PICC and CCVC performed at the bedside if intra-hospital transport was inappropriate. Other patients underwent PICC placement at the interventional radiology suite under fluoroscopic guidance. A total of 191 patients underwent central line placement in the neurosurgery ICU during the study period. Requirement for central line infusion (56.0%) and difficult venous access (28.8%) were the most common reasons for central line placement. The basilic vein (39.3%) and the subclavian vein (35.1%) were the most common target veins among patients who underwent central line placement. The placements of ultrasound-guided PICC and CCVC at the bedside were more frequently performed in patients on mechanical ventilation (p = 0.001) and with hemodynamic instability (p <0.001) compared to the fluoroscopy-guided PICC placement. The initial success rate of central line placement was better in the fluoroscopy-guided PICC placement than in the placements of ultrasound-guided PICC and CCVC at the bedside (p = 0.004). However, all re-inserted central lines were successful. There was no significant difference in procedure time between the three groups. However, incidence of insertional injuries was higher in CCVC group compared to PICC groups (p = 0.038). Ultrasound-guided PICC placement by a neurointensivist may be safe and feasible compared to fluoroscopy-guided PICC placement by interventional radiologists and CCVC placement for neurocritically ill patients.
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Affiliation(s)
- Yong Oh Kim
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Chi Ryang Chung
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Eunmi Gil
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Chi-Min Park
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Gee Young Suh
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jeong-Am Ryu
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- * E-mail:
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Baskin KM, Mermel LA, Saad TF, Journeycake JM, Schaefer CM, Modi BP, Vrazas JI, Gore B, Drews BB, Doellman D, Kocoshis SA, Abu-Elmagd KM, Towbin RB. Evidence-Based Strategies and Recommendations for Preservation of Central Venous Access in Children. JPEN J Parenter Enteral Nutr 2019; 43:591-614. [PMID: 31006886 DOI: 10.1002/jpen.1591] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/19/2019] [Indexed: 12/16/2022]
Abstract
Children with chronic illness often require prolonged or repeated venous access. They remain at high risk for venous catheter-related complications (high-risk patients), which largely derive from elective decisions during catheter insertion and continuing care. These complications result in progressive loss of the venous capital (patent and compliant venous pathways) necessary for delivery of life-preserving therapies. A nonstandardized, episodic, isolated approach to venous care in these high-need, high-cost patients is too often the norm, imposing a disproportionate burden on affected persons and escalating costs. This state-of-the-art review identifies known failure points in the current systems of venous care, details the elements of an individualized plan of care, and emphasizes a patient-centered, multidisciplinary, collaborative, and evidence-based approach to care in these vulnerable populations. These guidelines are intended to enable every practitioner in every practice to deliver better care and better outcomes to these patients through awareness of critical issues, anticipatory attention to meaningful components of care, and appropriate consultation or referral when necessary.
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Affiliation(s)
- Kevin M Baskin
- VANGUARD, Venous Access (VANGUARD) Task Force, Society of Interventional Radiology (SIR), Pittsburgh, Pennsylvania, USA
| | - Leonard A Mermel
- Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | | | - Janna M Journeycake
- Jimmy Everest Center for Cancer and Blood Disorders in Children, University of Oklahoma, Oklahoma City, Oklahoma, USA
| | - Carrie M Schaefer
- Pediatric Interventional Radiology, Phoenix Children's Hospital, Phoenix, Arizona, USA
| | - Biren P Modi
- Center for Advanced Intestinal Rehabilitation, Children's Hospital of Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - John I Vrazas
- Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Beth Gore
- Association for Vascular Access, Herriman, Utah, USA
| | | | - Darcy Doellman
- Vascular Access Team, Children's Hospital of Cincinnati Medical Center, Cincinnati, Ohio, USA
| | - Samuel A Kocoshis
- Pediatric Nutrition and Intestinal Care Center, Children's Hospital of Cincinnati Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Kareem M Abu-Elmagd
- Cleveland Clinics Foundation Hospitals and Clinics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Richard B Towbin
- Department of Radiology, Phoenix Children's Hospital, Phoenix, Arizona, USA
| | -
- VANGUARD, Venous Access (VANGUARD) Task Force, Society of Interventional Radiology (SIR), Pittsburgh, Pennsylvania, USA
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Liu H, Shukla S, Vera-González N, Tharmalingam N, Mylonakis E, Fuchs BB, Shukla A. Auranofin Releasing Antibacterial and Antibiofilm Polyurethane Intravascular Catheter Coatings. Front Cell Infect Microbiol 2019; 9:37. [PMID: 30873389 PMCID: PMC6403144 DOI: 10.3389/fcimb.2019.00037] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/07/2019] [Indexed: 12/18/2022] Open
Abstract
Intravascular catheter related bloodstream infections (CRBSIs) are a leading cause of hospital-acquired infections worldwide, resulting not only in the burden of cost and morbidity for patients but also in the over-consumption of medical resources for hospitals and health care organizations. In this study, a novel auranofin releasing antibacterial and antibiofilm polyurethane (PU) catheter coating was developed and investigated for future use in preventing CRBSIs. Auranofin is an antirheumatic drug with recently identified antimicrobial properties. The drug carrier, PU, acts as a barrier surrounding the antibacterial agent, auranofin, to extend the drug release profile and improve its long-term antibacterial and antibiofilm efficacy and potentially the length of catheter implantation within a patient. The PU+auranofin coatings developed here were found to be highly stretchable (exhibiting ~500% percent elongation), which is important for the compliance of the material on a flexible catheter. PU+auranofin coated catheters were able to inhibit the growth of methicillin-resistant Staphylococcus aureus (MRSA) for 8 to 26 days depending on the specific drug concentration utilized during the dip coating process. The PU+auranofin coated catheters were also able to completely inhibit MRSA biofilm formation in vitro, an effect that was not observed with auranofin or PU alone. Lastly, these coatings were found to be hemocompatible with human erythrocytes and maintain liver cell viability.
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Affiliation(s)
- Hanyang Liu
- Center for Biomedical Engineering, School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, United States
| | - Shashank Shukla
- Center for Biomedical Engineering, School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, United States
| | - Noel Vera-González
- Center for Biomedical Engineering, School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, United States
| | - Nagendran Tharmalingam
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School and Brown University, Providence, RI, United States
| | - Eleftherios Mylonakis
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School and Brown University, Providence, RI, United States
| | - Beth Burgwyn Fuchs
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School and Brown University, Providence, RI, United States
| | - Anita Shukla
- Center for Biomedical Engineering, School of Engineering, Institute for Molecular and Nanoscale Innovation, Brown University, Providence, RI, United States
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Loss of Function in Escherichia coli Exposed to Environmentally Relevant Concentrations of Benzalkonium Chloride. Appl Environ Microbiol 2019; 85:AEM.02417-18. [PMID: 30530708 DOI: 10.1128/aem.02417-18] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/28/2018] [Indexed: 01/09/2023] Open
Abstract
Assessing the risk of resistance associated with biocide exposure commonly involves exposing microorganisms to biocides at concentrations close to the MIC. With the aim of representing exposure to environmental biocide residues, Escherichia coli MG1655 was grown for 20 passages in the presence or absence of benzalkonium chloride (BAC) at 100 ng/liter and 1,000 ng/liter (0.0002% and 0.002% of the MIC, respectively). BAC susceptibility, planktonic growth rates, motility, and biofilm formation were assessed, and differentially expressed genes were determined via transcriptome sequencing. Planktonic growth rate and biofilm formation were significantly reduced (P < 0.001) following BAC adaptation, while BAC minimum bactericidal concentration increased 2-fold. Transcriptomic analysis identified 289 upregulated and 391 downregulated genes after long-term BAC adaptation compared with the respective control organism passaged in BAC-free medium. When the BAC-adapted bacterium was grown in BAC-free medium, 1,052 genes were upregulated and 753 were downregulated. Repeated passage solely in biocide-free medium resulted in 460 upregulated and 476 downregulated genes compared with unexposed bacteria. Long-term exposure to environmentally relevant BAC concentrations increased the expression of genes associated with efflux and reduced the expression of genes associated with outer-membrane porins, motility, and chemotaxis. This was manifested phenotypically through the loss of function (motility). Repeated passage in a BAC-free environment resulted in the upregulation of multiple respiration-associated genes, which was reflected by increased growth rate. In summary, repeated exposure of E. coli to BAC residues resulted in significant alterations in global gene expression that were associated with minor decreases in biocide susceptibility, reductions in growth rate and biofilm formation, and loss of motility.IMPORTANCE Exposure to very low concentrations of biocides in the environment is a poorly understood risk factor for antimicrobial resistance. Repeated exposure to trace levels of the biocide benzalkonium chloride (BAC) resulted in loss of function (motility) and a general reduction in bacterial fitness but relatively minor decreases in susceptibility. These changes were accompanied by widespread changes in the Escherichia coli transcriptome. These results demonstrate the importance of including phenotypic characterization in studies designed to assess the risks of biocide exposure.
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Silverstein DM, Trerotola SO, Clark T, James G, Ng W, Dwyer A, Florescu MC, Shingarev R, Ash SR. Clinical and Regulatory Considerations for Central Venous Catheters for Hemodialysis. Clin J Am Soc Nephrol 2018; 13:1924-1932. [PMID: 30309840 PMCID: PMC6302318 DOI: 10.2215/cjn.14251217] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Central venous catheters remain a vital option for access for patients receiving maintenance hemodialysis. There are many important and evolving clinical and regulatory considerations for all stakeholders for these devices. Innovation and transparent and comprehensive regulatory review of these devices is essential to stimulate innovation to help promote better outcomes for patients receiving maintenance hemodialysis. A workgroup that included representatives from academia, industry, and the US Food and Drug Administration was convened to identify the major design considerations and clinical and regulatory challenges of central venous catheters for hemodialysis. Our intent is to foster improved understanding of these devices and provide the foundation for strategies to foster innovation of these devices.
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Affiliation(s)
- Douglas M. Silverstein
- Center for Devices and Radiological Health, Division of Reproductive, Gastro-Renal, and Urological Devices, Renal Devices Branch, US Food and Drug Administration, Silver Spring, Maryland
| | - Scott O. Trerotola
- Interventional Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Timothy Clark
- Interventional Radiology, Penn-Presbyterian Medical Center, Hospitals of the University of Pennsylvania, , Philadelphia, Pennsylvania
| | - Garth James
- Center for Biofilm Engineering, Montana State University, Bozeman, Montana
| | - Wing Ng
- Regulatory Affairs and Patient Recovery, Cardinal Health, Inc., Dublin, Ohio
| | - Amy Dwyer
- Internal Medicine and Interventional Nephrology, University of Louisville, Louisville, Kentucky
| | - Marius C. Florescu
- Internal Medicine and Nephrology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Roman Shingarev
- Internal Medicine and Nephrology, University of Alabama at Birmingham Medical Center, Birmingham, Alabama
| | - Stephen R. Ash
- Indiana University Health Arnett Hospital, Lafayette, Indiana
- HemoCleanse Technologies, LLC, Lafayette, Indiana; and
- Ash Access Technology, Inc., Lafayette, Indiana
| | - on behalf of the Kidney Health Initiative HDF Workgroup
- Center for Devices and Radiological Health, Division of Reproductive, Gastro-Renal, and Urological Devices, Renal Devices Branch, US Food and Drug Administration, Silver Spring, Maryland
- Interventional Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
- Interventional Radiology, Penn-Presbyterian Medical Center, Hospitals of the University of Pennsylvania, , Philadelphia, Pennsylvania
- Center for Biofilm Engineering, Montana State University, Bozeman, Montana
- Regulatory Affairs and Patient Recovery, Cardinal Health, Inc., Dublin, Ohio
- Internal Medicine and Interventional Nephrology, University of Louisville, Louisville, Kentucky
- Internal Medicine and Nephrology, University of Nebraska Medical Center, Omaha, Nebraska
- Internal Medicine and Nephrology, University of Alabama at Birmingham Medical Center, Birmingham, Alabama
- Indiana University Health Arnett Hospital, Lafayette, Indiana
- HemoCleanse Technologies, LLC, Lafayette, Indiana; and
- Ash Access Technology, Inc., Lafayette, Indiana
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Effect of Irrigation Time of Antiseptic Solutions on Bone Cell Viability and Growth Factor Release. J Craniofac Surg 2018; 29:376-381. [PMID: 29084111 DOI: 10.1097/scs.0000000000004089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Antiseptic solutions are commonly utilized to treat local infection in the oral and maxillofacial region. However, surrounding vital bone is also exposed to antiseptic agents during irrigation and may have a potential negative impact on bone survival. The aim of the present study was therefore to investigate the effect of rinsing time with various antiseptic solutions on bone cell viability, as well as their subsequent release of growth factors important for bone regeneration. The bone samples collected from porcine mandible were rinsed in the following commonly utilized antiseptic solutions; povidone-iodine (0.5%), chlorhexidine digluconate (CHX, 0.2%), hydrogen peroxide (1%), and sodium hypochlorite (0.25%) for 1, 5, 10, 20, 30, or 60 minutes and assessed for cell viability and release of growth factors including vascular endothelial growth factor, transforming growth factor beta 1, bone morphogenetic protein 2, receptor activator of nuclear factor kappa-B ligand, and interleukin-1 beta by enzyme-linked immunosorbent assay. It was found in all the tested groups that the long exposure of any of the tested antiseptic solutions drastically promoted higher cell death. Sodium hypochlorite demonstrated the significantly highest cell death and at all time points. Interestingly, bone cell viability was highest in the CHX group post short-term rinsing of 1, 5, or 10 minutes when compared with the other 4 tested groups. A similar trend was also observed in subsequent growth factor release. The present study demonstrated that of the 4 tested antiseptic solutions, short-term CHX rinsing (ideally within 1 minute) favored bone cell viability and growth factor release. Clinical protocols should be adapted accordingly.
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Wang H, Tong H, Liu H, Wang Y, Wang R, Gao H, Yu P, Lv Y, Chen S, Wang G, Liu M, Li Y, Yu K, Wang C. Effectiveness of antimicrobial-coated central venous catheters for preventing catheter-related blood-stream infections with the implementation of bundles: a systematic review and network meta-analysis. Ann Intensive Care 2018; 8:71. [PMID: 29904809 PMCID: PMC6002334 DOI: 10.1186/s13613-018-0416-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 06/01/2018] [Indexed: 11/29/2022] Open
Abstract
Background Catheter-related blood-stream infections (CRBSIs) are the most common complication when using central venous catheters (CVCs). Whether coating CVCs under bundles could further reduce the incidence of CRBSIs is unclear. We aimed to assess the effectiveness of implementing the use of bundles with antimicrobial-coated CVCs for preventing catheter-related blood-stream infections. Methods In this systematic review and network meta-analyses, we searched the Cochrane Central Register of Controlled Trials (CENTRAL) in the Cochrane Library in addition to the EMBASE, MEDLINE, CINAHL, and Web of Science databases for studies published before July 2017. The primary outcome was the rate of CRBSIs per 1000 catheter-days, and the secondary outcome was the incidence of catheter colonization. Results Twenty-three studies revealed significant differences in the rate of CRBSIs per 1000 catheter-days between antimicrobial-impregnated and standard CVCs (RR 0.70, 95% CI 0.53–0.91, p = 0.008). Thirty-three trials were included containing 10,464 patients who received one of four types of CVCs. Compared with a standard catheter, chlorhexidine/silver sulfadiazine- and antibiotic-coated catheters were associated with lower numbers of CRBSIs per 1000 catheter-days (ORs and 95% CrIs: 0.64 (0.40–0.955) and 0.53 (0.25–0.95), respectively) and a lower incidence of catheter colonization (ORs and 95% CrIs: 0.44 (0.34–0.56) and 0.30 (0.20–0.46), respectively). Conclusions Outcomes are superior for catheters impregnated with chlorhexidine/silver sulfadiazine or other antibiotics than for standard catheters in preventing CRBSIs and catheter colonization under bundles. Compared with silver ion-impregnated CVCs, chlorhexidine/silver sulfadiazine antiseptic catheters resulted in fewer cases of microbial colonization of the catheter but did not reduce CRBSIs. Electronic supplementary material The online version of this article (10.1186/s13613-018-0416-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hongliang Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongshuang Tong
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Haitao Liu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Yao Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Ruitao Wang
- Department of Internal Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - Hong Gao
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Pulin Yu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Yanji Lv
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Shuangshuang Chen
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Guiyue Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Miao Liu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Yuhang Li
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China
| | - Kaijiang Yu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China.
| | - Changsong Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, No. 150 Haping Rd., Nangang District, Harbin, 150081, China.
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Lee KH, Cho NH, Jeong SJ, Kim MN, Han SH, Song YG. Effect of Central Line Bundle Compliance on Central Line-Associated Bloodstream Infections. Yonsei Med J 2018; 59:376-382. [PMID: 29611399 PMCID: PMC5889989 DOI: 10.3349/ymj.2018.59.3.376] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/06/2018] [Accepted: 02/06/2018] [Indexed: 01/07/2023] Open
Abstract
PURPOSE The present study aimed to evaluate the effect of central line (CL) bundle compliance on central line-associated bloodstream infections (CLABSIs) in different departments of the same hospital, including the intensive care unit (ICU) and other departments. MATERIALS AND METHODS The four components of the CL bundle were hand hygiene, use of maximal sterile barrier precautions, chlorhexidine use, and selection of an appropriate site for venous access. Compliance of the CL bundle and CLABSIs were measured for every department [emergency room (ER), ICU, general ward (GW), and operating room (OR)]. A total of 1672 patients were included over 3 years (August 2013 through July 2016). RESULTS A total of 29 CLABSI episodes (1.73%) were identified, and only 53.7% of the patients completed CL bundles. The performance rates of all components of the CL bundle were 22.3%, 28.5%, 36.5%, and 84.6% for the ER, ICU, GW, and OR, respectively. The highest CLABSI rate was observed in patients of the ICU, for whom all components were not performed perfectly. Conversely, the lowest CLABSI rate was observed for patients of GWs, for whom all components were performed. Among individual components, femoral insertion site [relative risk (RR), 2.26; 95% confidence interval (CI), 1.09-4.68], not using a full body drape (RR, 3.55; 95% CI, 1.44-8.71), and not performing all CL bundle components (RR, 2.79; 95% CI, 1.19-6.54) were significant variables associated with CLABSIs. CONCLUSION This study provides direct evidence that completing all CL bundle components perfectly is essential for preventing CLABSIs. Customized education should be provided, according to specific weaknesses of bundle performance.
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Affiliation(s)
- Kyoung Hwa Lee
- Division of Infectious Diseases, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea
| | - Nan Hyoung Cho
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea
| | - Su Jin Jeong
- Division of Infectious Diseases, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea
| | - Mi Na Kim
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea
| | - Sang Hoon Han
- Division of Infectious Diseases, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea
| | - Young Goo Song
- Division of Infectious Diseases, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Infection Control, Gangnam Severance Hospital, Seoul, Korea.
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35
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Sjollema J, Zaat SAJ, Fontaine V, Ramstedt M, Luginbuehl R, Thevissen K, Li J, van der Mei HC, Busscher HJ. In vitro methods for the evaluation of antimicrobial surface designs. Acta Biomater 2018; 70:12-24. [PMID: 29432983 DOI: 10.1016/j.actbio.2018.02.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/12/2018] [Accepted: 02/01/2018] [Indexed: 11/16/2022]
Abstract
Bacterial adhesion and subsequent biofilm formation on biomedical implants and devices are a major cause of their failure. As systemic antibiotic treatment is often ineffective, there is an urgent need for antimicrobial biomaterials and coatings. The term "antimicrobial" can encompass different mechanisms of action (here termed "antimicrobial surface designs"), such as antimicrobial-releasing, contact-killing or non-adhesivity. Biomaterials equipped with antimicrobial surface designs based on different mechanisms of action require different in vitro evaluation methods. Available industrial standard evaluation tests do not address the specific mechanisms of different antimicrobial surface designs and have therefore been modified over the past years, adding to the myriad of methods available in the literature to evaluate antimicrobial surface designs. The aim of this review is to categorize fourteen presently available methods including industrial standard tests for the in vitro evaluation of antimicrobial surface designs according to their suitability with respect to their antimicrobial mechanism of action. There is no single method or industrial test that allows to distinguish antimicrobial designs according to all three mechanisms identified here. However, critical consideration of each method clearly relates the different methods to a specific mechanism of antimicrobial action. It is anticipated that use of the provided table with the fourteen methods will avoid the use of wrong methods for evaluating new antimicrobial designs and therewith facilitate translation of novel antimicrobial biomaterials and coatings to clinical use. The need for more and better updated industrial standard tests is emphasized. STATEMENT OF SIGNIFICANCE European COST-action TD1305, IPROMEDAI aims to provide better understanding of mechanisms of antimicrobial surface designs of biomaterial implants and devices. Current industrial evaluation standard tests do not sufficiently account for different, advanced antimicrobial surface designs, yet are urgently needed to obtain convincing in vitro data for approval of animal experiments and clinical trials. This review aims to provide an innovative and clear guide to choose appropriate evaluation methods for three distinctly different mechanisms of antimicrobial design: (1) antimicrobial-releasing, (2) contact-killing and (3) non-adhesivity. Use of antimicrobial evaluation methods and definition of industrial standard tests, tailored toward the antimicrobial mechanism of the design, as identified here, fulfill a missing link in the translation of novel antimicrobial surface designs to clinical use.
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Affiliation(s)
- Jelmer Sjollema
- University of Groningen, University Medical Center Groningen, Department of BioMedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
| | - Sebastian A J Zaat
- Department of Medical Microbiology, CINIMA (Center for Infection and Immunity Amsterdam), Academic Medical Center, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands
| | - Veronique Fontaine
- Unit of Pharmaceutical Microbiology and Hygiene, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Campus Plaine, Boulevard du Triomphe, 1050 Brussels, Belgium
| | | | - Reto Luginbuehl
- RMS Foundation, Bischmattstrasse 12, 2544 Bettlach, Switzerland
| | - Karin Thevissen
- Centre for Microbial and Plant Genetics, CMPG, University of Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
| | - Jiuyi Li
- School of Civil Engineering, Beijing Jiaotong University, 3 Shangyuancun, Xizhimenwai, Beijing 100044, China
| | - Henny C van der Mei
- University of Groningen, University Medical Center Groningen, Department of BioMedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Henk J Busscher
- University of Groningen, University Medical Center Groningen, Department of BioMedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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36
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De Cicco M, Campisi C, Matovic M. Central Venous Catheter-Related Bloodstream Infections: Pathogenesis Factors, New Perspectives in Prevention and Early Diagnosis. J Vasc Access 2018. [DOI: 10.1177/112972980300400302] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- M. De Cicco
- Center of Oncological Reference, INRCCS, Aviano (PN) - Italy
| | - C. Campisi
- Institute of Biomedical Engineering, Div. of Biomedicine Technology, CNR, Rome - Italy
| | - M. Matovic
- Center of Oncological Reference, INRCCS, Aviano (PN) - Italy
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37
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Abstract
Intravascular catheters are the most common cause of nosocomially acquired bloodstream infections. Bacteria found adhering to the intraluminal surfaces of catheters are the principal source and cause of these infections. Adherent bacteria overtime are known to form multicellular communities which become encased within a three dimensional matrix of extracellular polymeric material known as biofilms, which are thought to be responsible for persistent infections. Consequently, a number of technologies have been developed to help prevent and control biofilms in intravascular catheters. One such approach involves impregnating catheter material with antimicrobial agents. Unfortunately these methods are not universally effective in preventing catheter-related biofilm infections. Technologies that utilise antimicrobials, as catheter locks have been shown to have more potential for preventing biofilm formation and reducing the incidences of catheter related bloodstream infections (CRBSI). This article discusses the significance of biofilms in intravascular catheters and determines whether the treatments available today are proving to be effective for controlling biofilms and draws attention to future avenues which are being investigated to control biofilms and therefore CRBSI.
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Affiliation(s)
- S.L. Percival
- Department of Microbiology, Leeds General Infirmary, Leeds - UK
| | - P. Kite
- Department of Microbiology, Leeds General Infirmary, Leeds - UK
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38
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Gastmeier P, Zuschneid I, Geffers C. Antimicrobially Impregnated Catheters: An Overview of Randomized Controlled Trials. J Vasc Access 2018. [DOI: 10.1177/112972980300400305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In order to acquire an overview of the effectiveness of antimicrobially impregnated catheters on the prevention of catheter related bloodstream infections (CRI), we conducted a systematic review concentrating on randomized controlled trials (RCTs). The analysis end point was CRI; therefore, studies focussing only on catheter colonization were excluded. We did not consider abstracts for analysis. We identified 24 RCTs investigating the effectiveness of antimicrobially impregnated catheters. In addition, we discovered five meta-analyses and four studies investigating cost effectiveness. For the majority of antimicrobially impregnated catheter types only a few studies were available, and not enough to draw conclusions. Therefore, despite a relatively large number of RCTs available, the routine use of antimicrobially impregnated catheters as a measure for CRI prevention remains controversial, with a need for more high quality studies.
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Affiliation(s)
- P. Gastmeier
- Institute of Medical Microbiology and Hospital Epidemiology, Medical School Hannover, Hannover - Germany
| | - I. Zuschneid
- Institute of Hygiene, Charitè - University Medicine in Berlin, Berlin - Germany
| | - C. Geffers
- Institute of Hygiene, Charitè - University Medicine in Berlin, Berlin - Germany
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39
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Patel PK, Gupta A, Vaughn VM, Mann JD, Ameling JM, Meddings J. Review of Strategies to Reduce Central Line-Associated Bloodstream Infection (CLABSI) and Catheter-Associated Urinary Tract Infection (CAUTI) in Adult ICUs. J Hosp Med 2018; 13:105-116. [PMID: 29154382 DOI: 10.12788/jhm.2856] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Central line-associated bloodstream infection (CLABSI) and catheter-associated urinary tract infection (CAUTI) are costly and morbid. Despite evidence-based guidelines, Some intensive care units (ICUs) continue to have elevated infection rates. In October 2015, we performed a systematic search of the peer-reviewed literature within the PubMed and Cochrane databases for interventions to reduce CLABSI and/or CAUTI in adult ICUs and synthesized findings using a narrative review process. The interventions were categorized using a conceptual model, with stages applicable to both CAUTI and CLABSI prevention: (stage 0) avoid catheter if possible, (stage 1) ensure aseptic placement, (stage 2) maintain awareness and proper care of catheters in place, and (stage 3) promptly remove unnecessary catheters. We also looked for effective components that the 5 most successful (by reduction in infection rates) studies of each infection shared. Interventions that addressed multiple stages within the conceptual model were common in these successful studies. Assuring compliance with infection prevention efforts via auditing and timely feedback were also common. Hospitalists with patient safety interests may find this review informative for formulating quality improvement interventions to reduce these infections.
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Affiliation(s)
- Payal K Patel
- Ann Arbor Veterans Affairs Medical Center, Ann Arbor, Michigan, USA.
- Department of Internal Medicine, Division of Infectious Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Ashwin Gupta
- Ann Arbor Veterans Affairs Medical Center, Ann Arbor, Michigan, USA
- Department of Internal Medicine, Division of General Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Valerie M Vaughn
- Department of Internal Medicine, Division of General Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jason D Mann
- Department of Internal Medicine, Division of General Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jessica M Ameling
- Department of Internal Medicine, Division of General Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jennifer Meddings
- Ann Arbor Veterans Affairs Medical Center, Ann Arbor, Michigan, USA
- Department of Internal Medicine, Division of General Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
- Department of Pediatrics and Communicable Diseases, Division of General Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan, USA
- Veterans Affairs Center for Clinical Management Research, Ann Arbor Veterans Affairs Medical Center, Ann Arbor, Michigan, USA
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40
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Chong HY, Lai NM, Apisarnthanarak A, Chaiyakunapruk N. Comparative Efficacy of Antimicrobial Central Venous Catheters in Reducing Catheter-Related Bloodstream Infections in Adults: Abridged Cochrane Systematic Review and Network Meta-Analysis. Clin Infect Dis 2018; 64:S131-S140. [PMID: 28475779 DOI: 10.1093/cid/cix019] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background The efficacy of antimicrobial central venous catheters (CVCs) remains questionable. In this network meta-analysis, we aimed to assess the comparative efficacy of antimicrobial CVC impregnations in reducing catheter-related infections in adults. Methods We searched 4 electronic databases (Medline, the Cochrane Central Register of Controlled Trials, Embase, CINAHL) and internet sources for randomized controlled trials, ongoing clinical trials, and unpublished studies up to August 2016. Studies that assessed CVCs with antimicrobial impregnation with nonimpregnated catheters or catheters with another impregnation were included. Primary outcomes were clinically diagnosed sepsis, catheter-related bloodstream infection (CRBSI), and all-cause mortality. We performed a network meta-analysis to estimate risk ratio (RR) with 95% confidence interval (CI). Results Sixty studies with 17255 catheters were included. The effects of 14 impregnations were investigated. Both CRBSI and catheter colonization were the most commonly evaluated outcomes. Silver-impregnated CVCs significantly reduced clinically diagnosed sepsis compared with silver-impregnated cuffs (RR, 0.54 [95% CI, .29-.99]). When compared to no impregnation, significant CRBSI reduction was associated with minocycline-rifampicin (RR, 0.29 [95% CI, .16-.52]) and silver (RR, 0.57 [95% CI, .38-.86]) impregnations. No impregnations significantly reduced all-cause mortality. For catheter colonization, significant decreases were shown by miconazole-rifampicin (RR, 0.14 [95% CI, .05-.36]), 5-fluorouracil (RR, 0.34 [95% CI, .14-.82]), and chlorhexidine-silver sulfadiazine (RR, 0.60 [95% CI, .50-.72]) impregnations compared with no impregnation. None of the studies evaluated antibiotic/antiseptic resistance as the outcome. Conclusions Current evidence suggests that the minocycline-rifampicin-impregnated CVC appears to be the most effective in preventing CRBSI. However, its overall benefits in reducing clinical sepsis and mortality remain uncertain. Surveillance for antibiotic resistance attributed to the routine use of antimicrobial-impregnated CVCs should be emphasized in future trials.
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Affiliation(s)
| | - Nai Ming Lai
- School of Pharmacy, Monash University Malaysia.,School of Medicine, Taylor's University Lakeside Campus, Malaysia
| | - Anucha Apisarnthanarak
- Division of Infectious Diseases, Faculty of Medicine, Thammasat University Hospital, Pratumthani, Thailand
| | - Nathorn Chaiyakunapruk
- School of Pharmacy, Monash University Malaysia.,School of Population Health, University of Queensland, Brisbane, Australia.,Center of Pharmaceutical Outcomes Research, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand ; and.,School of Pharmacy, University of Wisconsin, Madison
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41
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von Eiff C, Kohnen W, Becker K, Jansen B. Modern Strategies in the Prevention of Implant-Associated Infections. Int J Artif Organs 2018; 28:1146-56. [PMID: 16353121 DOI: 10.1177/039139880502801112] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The application of medical devices either for temporary or permanent use has become an indispensible part of almost all fields of medicine. However, foreign bodies are associated with a substantial risk of bacterial and fungal infections. Implant-associated infections significantly contribute to the still increasing problem of nosocomial infections. To reduce the incidence of such infections, specific guidelines providing evidence-based recommendations and comprising both technological and nontechnological strategies for prevention have been established. Strict adherence to hygienic rules during insertion or implantation of the device are aspects of particular importance. Besides such basic and indispensable aspects, the development of new materials which could withstand microbial adherence and colonization has become a major topic in recent years. Modification of surface by primarily physico-chemical methods may lead to a change in specific and unspecific interactions with microorganisms and, thus, to a reduction in microbial adherence. Medical devices made out of a material that would be ideally antiadhesive or at least colonization-resistant would be the most suitable candidates to avoid colonization and subsequent infection. However, it appears impossible to create a surface with an absolute “zero”-adherence due to thermodynamical reasons and due to the fact that a modified material surface is in vivo rapidly covered by plasma and connective tissue proteins. Therefore, another concept for the prevention of implant-associated infections involves the impregnation of devices with various antimicrobial substances such as antibiotics, antiseptics, and/or metals. In fact, already commercially available materials for clinical use such as antimicrobial catheters have been introduced, in part with considerable impact on subsequent infections. However, future studies are warranted to translate the knowledge on the pathogenesis of device-associated infections into applicable prevention strategies.
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Affiliation(s)
- C von Eiff
- Institute of Medical Microbiology, University of Münster Hospital and Clinics, Münster, Germany.
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42
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Darouiche RO. Antimicrobial Coating of Devices for Prevention of Infection: Principles and Protection. Int J Artif Organs 2018; 30:820-7. [DOI: 10.1177/039139880703000912] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Device-associated infections are responsible for about half of nosocomial infections and can cause major medical and economical sequelae. Despite adherence to basic infection control measures, which constitute the mainstay for preventing infection, infections associated with certain devices continue to exist at unacceptably high rates. Potentially-preventive, antimicrobial-utilizing strategies include systemic antibiotic prophylaxis and local administration of antimicrobial agents (antibiotics or antiseptics), which includes antimicrobial irrigation of the surgical field, placement of antimicrobial carriers, antiseptic cleansing of the skin, dipping of surgical implants in antimicrobial solutions, and inserting antimicrobial-coated implants. Since bacterial colonization of the indwelling device is a prelude to infection, prevention of device colonization may lead to a lower rate of clinical infection. Different approaches for antimicrobial coating of devices have been variably successful in preventing device-associated infections. Optimal characteristics of antimicrobial coating can help predict the likelihood and degree of clinical protection against infection. This review addresses the impact of device-related infection, antimicrobial-utilizing approaches for preventing infection, clinical protection afforded by different types of antimicrobial coating, characteristics that predict the ability of antimicrobial coating of devices to prevent clinical infection, and future directions of antimicrobial coating.
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Affiliation(s)
- R. O. Darouiche
- Center for Prostheses Infection and Infectious Disease Section, Michael E. Debakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas - USA
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43
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Schulz S, Maitz M, Hänsel S, Renner LD, Werner C. Analyzing the antiseptic capacity of silver-functionalized poly(ethylene glycol)–heparin hydrogels after human whole blood exposure. Biomater Sci 2018. [DOI: 10.1039/c7bm01140g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Advanced blood contacting biomaterials are designed to combine antiseptic and anticoagulant functionalities.
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Affiliation(s)
- Sandra Schulz
- Max Bergmann Center of Biomaterials
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Manfred Maitz
- Max Bergmann Center of Biomaterials
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Stefanie Hänsel
- Max Bergmann Center of Biomaterials
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Lars D. Renner
- Max Bergmann Center of Biomaterials
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
| | - Carsten Werner
- Max Bergmann Center of Biomaterials
- Leibniz-Institut für Polymerforschung Dresden e.V
- Dresden
- Germany
- Center for Regenerative Therapies Dresden
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44
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Wu M, Chen Y, Du B, Kang Y. Study protocol for a multicentre, randomised, controlled trial to assess the effectiveness of antimicrobial central venous catheters versus ordinary central venous catheters at reducing catheter related infections in critically ill Chinese patients. BMJ Open 2017; 7:e016564. [PMID: 29289933 PMCID: PMC5778275 DOI: 10.1136/bmjopen-2017-016564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 10/21/2017] [Accepted: 11/02/2017] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Catheter use is associated with many complications and is an iatrogenic source of morbidity and mortality in intensive care units (ICU). The catheter being studied (Certofix Protect) was developed to reduce the risk of catheter related infections. This clinical trial will compare the safety and efficiency of Certofix Protect with that of an ordinary Certofix catheter. METHODS AND ANALYSIS In this multicentre trial, we will randomly assigned dual lumen central venous catheterisation (≥5 ds) in patients in the adult ICU to the antimicrobial central venous catheter (CVC) group or the ordinary CVC group. We plan to recruit 12-16 medical centres in China. Our main objective is to assess the effectiveness of antimicrobial CVCs in reducing catheter related bloodstream infection (CRBSI), all cause mortality, catheter colonisation, catheter related thrombosis and other catheter related complications. The primary outcome is the incidence of CRBSI. ETHICS AND DISSEMINATION The ethics committee of West China Hospital of Sichuan University has granted ethics approval for this study (27 January 2015). The results will be published in peer reviewed journals and presented at conferences. TRIAL REGISTRATION NUMBER NCT02645682.
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Affiliation(s)
- Minming Wu
- Department of Critical Care Medicine, Sichuan University West China Hospital, Chengdu, China
| | - Yao Chen
- Department of Critical Care Medicine, Sichuan University West China Hospital, Chengdu, China
| | - Bin Du
- Medical Intensive Care Unit, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China
| | - Yan Kang
- Department of Critical Care Medicine, Sichuan University West China Hospital, Chengdu, China
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45
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Yasuda H, Sanui M, Abe T, Shime N, Komuro T, Hatakeyama J, Matsukubo S, Kawano S, Yamamoto H, Andoh K, Seo R, Inoue K, Noda E, Saito N, Nogami S, Okamoto K, Fuke R, Gushima Y, Kobayashi A, Takebayashi T, Lefor AK. Comparison of the efficacy of three topical antiseptic solutions for the prevention of catheter colonization: a multicenter randomized controlled study. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2017; 21:320. [PMID: 29268759 PMCID: PMC5740719 DOI: 10.1186/s13054-017-1890-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/13/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND To compare the efficacy of three antiseptic solutions [0.5%, and 1.0% alcohol/chlorhexidine gluconate (CHG), and 10% aqueous povidone-iodine (PVI)] for the prevention of intravascular catheter colonization, we conducted a randomized controlled trial in patients from 16 intensive care units in Japan. METHODS Adult patients undergoing central venous or arterial catheter insertions were randomized to have one of three antiseptic solutions applied during catheter insertion and dressing changes. The primary endpoint was the incidence of catheter colonization, and the secondary endpoint was the incidence of catheter-related bloodstream infections (CRBSI). RESULTS Of 1132 catheters randomized, 796 (70%) were included in the full analysis set. Catheter-tip colonization incidence was 3.7, 3.9, and 10.5 events per 1000 catheter-days in 0.5% CHG, 1% CHG, and PVI groups, respectively (p = 0.03). Pairwise comparisons of catheter colonization between groups showed a significantly higher catheter colonization risk in the PVI group (0.5% CHG vs. PVI: hazard ratio, HR 0.33 [95% confidence interval, CI 0.12-0.95], p = 0.04; 1.0% CHG vs. PVI: HR 0.35 [95% CI 0.13-0.93], p = 0.04). Sensitivity analyses including all patients by multiple imputations showed consistent quantitative conclusions (0.5% CHG vs. PVI: HR 0.34, p = 0.03; 1.0% CHG vs. PVI: HR 0.35, p = 0.04). No significant differences were observed in the incidence of CRBSI between groups. CONCLUSIONS Both 0.5% and 1.0% alcohol CHG are superior to 10% aqueous PVI for the prevention of intravascular catheter colonization. TRIAL REGISTRATION Japanese Primary Registries Network; No.: UMIN000008725 Registered on 1 September 2012.
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Affiliation(s)
- Hideto Yasuda
- Intensive Care Unit, Department of Emergency and Critical Care Medicine, Japanese Red Cross Musashino Hospital, 1-26-1, Kyounanchou, Musashino-shi, Tokyo, 180-8610, Japan.,Department of Intensive Care Unit, Kameda General Hospital, 929 Higashi-cho, Kamogawa City, Chiba Prefecture, 296-8602, Japan.,Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masamitsu Sanui
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University Saitama Medical Center, 1-847, Amanuma-cho, Omiya-ku, Saitama-shi, Saitama, 330-8503, Japan.
| | - Takayuki Abe
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Biostatistics Unit at Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Nobuaki Shime
- Department of Emergency and Critical Care Medicine, Hiroshima University, Kasumi 1-2-3 Minami-ku, Hiroshima, 734-8551, Japan
| | - Tetsuya Komuro
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University Saitama Medical Center, 1-847, Amanuma-cho, Omiya-ku, Saitama-shi, Saitama, 330-8503, Japan
| | - Junji Hatakeyama
- Department of Intensive Care Medicine, Yokohama City Minato Red Cross Hospital, 3-12-1, Shin-yamashita, Naka-ku, Yokohama-Shi, Kanagawa, 231-8682, Japan
| | - Shohei Matsukubo
- Department of Emergency Medicine, Emergency and Critical Care Center, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Shinji Kawano
- Intensive Care Unit, Department of Anesthesiology, Jikei University School of Medicine, 3-19-18, Nishishimbashi, Minato-ku, Tokyo, 105-8471, Japan
| | - Hiroshi Yamamoto
- Department of Anesthesia, Toyonaka Municipal Hospital, 1-14-4, Shibaraha-chou, Toyonaka-shi, Osaka, 560-8565, Japan
| | - Kohkichi Andoh
- Emergency and Critical Care Department, Division of Intensive Care, Sendai City Hospital, 1-1-1, Asutonaga-chou, Taihaku-ku, Sendai-shi, Miyagi, 982-8502, Japan
| | - Ryutaro Seo
- Department of Emergency Medicine, Kobe City Medical Center General Hospital, 2-2-1, Minatojima-minamimachi, Chuo-ku, Kobe-city, Hyogo, 650-0047, Japan
| | - Kyo Inoue
- Department of Emergency and Critical Care Medicine, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto-shi, Kyoto, 612-0861, Japan
| | - Eiichiro Noda
- Department of Emergency Medicine, Fukuoka City Hospital, 1-13, Yoshizuka-honmachi, Hakata-ku, Fukuoka-shi, Fukuoka, 812-0046, Japan
| | - Nobuyuki Saito
- Shock and Trauma Center, Chiba-Hokusoh Hospital, Nippon Medical School, 1715 Kamagari, Inzai, Chiba, 270-1694, Japan
| | - Satoshi Nogami
- Department of Anesthesiology, Okayama Medical Center, 1711-1, Taeki, Kita-ku, Okayama-shi, Okayama, 701-1192, Japan
| | - Kentaro Okamoto
- Department of Intensive Care Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, 3-4-32, Toudaijima, Urayasu-shi, Chiba, 279-0001, Japan
| | - Ryota Fuke
- Division of Infectious Diseases and Infection Control, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1, Fukumuro, Miyagino-ku, Sendai, 983-8512, Japan
| | - Yasuhiro Gushima
- Department of Acute Care and General Medicine, Saiseikai Kumamoto Hospital, 5-3-1, Chikami, Minami-ku, Kumamoto-shi, Kumamoto, 861-4193, Japan
| | - Atsuko Kobayashi
- Department of Central Laboratory and Infection Control, Takarazuka City Hospital, 4-5-1, Kohama, Takarazuka-shi, Hyogo, 665-0827, Japan
| | - Toru Takebayashi
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Alan Kawarai Lefor
- Department of Surgery, Jichi Medical University, 3311-1, Yakushiji, Simono-shi, Tochigi, 329-0498, Japan
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Cobrado L, Silva-Dias A, Azevedo MM, Rodrigues A. Anti- Candida activity of antimicrobial impregnated central venous catheters. Antimicrob Resist Infect Control 2017; 6:110. [PMID: 29142743 PMCID: PMC5670704 DOI: 10.1186/s13756-017-0269-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 10/25/2017] [Indexed: 11/13/2022] Open
Abstract
Background Whenever the rate of central line-associated bloodstream infections (CLABSIs) remains high even after the implementation of preventive strategies, the use of chlorhexidine/silver sulfadiazine (CSS) or minocycline/rifampin (MR)-impregnated central venous catheters (CVCs) is currently recommended. Nevertheless, the efficacy of such CVCs against Candida albicans and other emerging non-albicans spp. has been insufficiently studied. This study aims to compare the activity of CSS and MR-impregnated CVCs against the yeasts most frequently isolated from CLABSIs. Methods For biofilm formation assays, type strains and clinical isolates of C. albicans, C. glabrata and C. parapsilosis sensu stricto were used. Segments of standard polyurethane, MR and second-generation CSS-CVCs were tested. The biofilm metabolic activity was measured by a semi-quantitative XTT reduction assay. Results CSS catheter segments significantly reduced the biofilm metabolic activity by all tested Candida spp., with inhibition ranging from 60% to 100%. The MR catheter segments promoted C. albicans and C. parapsilosis biofilm formation and exhibited an inconspicuous effect against C. glabrata. Conclusions Among the recommended antimicrobial CVCs, CSS-CVCs proved to be superior in the inhibition of biofilm formation by the most frequent yeasts causing CLABSIs. Data from this in vitro study may suggest that patients at high risk for invasive candidosis could benefit from the use of CSS-CVCs.
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Affiliation(s)
- L Cobrado
- Division of Microbiology, Department of Pathology, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200 Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| | - A Silva-Dias
- Division of Microbiology, Department of Pathology, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200 Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| | - M M Azevedo
- Division of Microbiology, Department of Pathology, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200 Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| | - A Rodrigues
- Division of Microbiology, Department of Pathology, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200 Porto, Portugal.,Burn Unit, Department of Plastic and Reconstructive Surgery, Centro Hospitalar São João, Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
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47
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Simon EM, Summers SM. Vascular Access Complications: An Emergency Medicine Approach. Emerg Med Clin North Am 2017; 35:771-788. [PMID: 28987428 DOI: 10.1016/j.emc.2017.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Millions of central venous and arterial catheters are placed across the United States annually as mechanisms of obtaining advanced hemodynamic monitoring and facilitating acute resuscitation. Although presumably life saving or sustaining in many circumstances, current literature identifies the preprocedural and postprocedural complications of infection, thrombosis, embolism, and iatrogenic injury as resulting in patient morbidity and mortality. Today, through the application of aseptic technique, performance of operator training, and the utilization of ultrasound, emergency physicians may limit vascular access complications and improve patient outcomes.
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Affiliation(s)
- Erica Marie Simon
- Emergency Department, San Antonio Uniformed Services Health Education Consortium, San Antonio Military Medical Center, SAMMC, MCHE-EMR, 3551 Roger Brooke Drive, JBSA Fort Sam Houston, TX 78234-6200, USA.
| | - Shane Matthew Summers
- Emergency Department, San Antonio Uniformed Services Health Education Consortium, San Antonio Military Medical Center, SAMMC, MCHE-EMR, 3551 Roger Brooke Drive, JBSA Fort Sam Houston, TX 78234-6200, USA
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48
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Gominet M, Compain F, Beloin C, Lebeaux D. Central venous catheters and biofilms: where do we stand in 2017? APMIS 2017; 125:365-375. [PMID: 28407421 DOI: 10.1111/apm.12665] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/29/2016] [Indexed: 12/28/2022]
Abstract
The use of central venous catheters (CVC) is associated with a risk of microbial colonization and subsequent potentially severe infection. Microbial contamination of the catheter leads to the development of a microbial consortia associated with the CVC surface and embedded in an extracellular matrix, named biofilm. This biofilm provides bacterial cells the ability to survive antimicrobial agents and the host immune system and to disseminate to other sites of the body. The best preventive strategy is to avoid any unnecessary catheterization or to reduce indwelling duration when a CVC is required. Beside aseptic care and antibiotic-impregnated catheters (like minocycline/rifampin), preventive locks can be proposed in some cases, whereas non-biocidal approaches are under active research like anti-adhesive or competitive interactions strategies. When the diagnosis of catheter-related bloodstream infection (CRBSI) is suspected on clinical symptoms, it requires a microbiological confirmation by paired blood cultures in order to avoid unnecessary catheter removal. The treatment of CRBSI relies on catheter removal and systemic antimicrobials. However, antibiotic lock technique (ALT) can be used as an attempt to eradicate biofilm formed on the inside lumen of the catheter in case of uncomplicated long-term catheter-related BSI caused by coagulase-negative staphylococci (CoNS) or Enterobacteriaceae. Recently, promising strategies have been developed to improve biofilm eradication; they rely on matrix degradation or destabilization or the development of anti-persister compounds, targeting the most tolerant bacterial cells inside the biofilm. Understanding biofilm formation at the molecular level may help us to develop new approaches to prevent or treat these frequent infections.
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Affiliation(s)
- Marie Gominet
- Service de Microbiologie, Unité Mobile de Microbiologie Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France.,Université Paris Descartes, Paris, France
| | - Fabrice Compain
- Université Paris Descartes, Paris, France.,Service de Microbiologie, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
| | - Christophe Beloin
- Unité de Génétique des Biofilms, Département de Microbiologie, Institut Pasteur, Paris, France
| | - David Lebeaux
- Service de Microbiologie, Unité Mobile de Microbiologie Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France.,Université Paris Descartes, Paris, France
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49
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Incidence of central venous catheter hub contamination. J Crit Care 2017; 39:162-168. [PMID: 28259730 DOI: 10.1016/j.jcrc.2017.02.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 01/19/2017] [Accepted: 02/24/2017] [Indexed: 11/23/2022]
Abstract
PURPOSE To investigate microorganisms causing central venous catheter contamination and how this contamination differs across different catheter metrics. MATERIALS AND METHODS After obtaining IRB approval and informed consent, 830 cultures were prospectively obtained from 45 ICU patients with central venous catheter or peripherally inserted central catheter. Bacterial colonies were identified by mass spectrometry. RESULTS Bacterial contamination of central catheter hubs occurred 44% of the time in this study in the ICU setting. Coagulase-positive staphylococci cultures had higher median (±interquartile range) CFUs (12±232) versus coagulase-negative (3±10) and other bacteria (1±3; P<0.001). Bacterial contamination was associated with various metrics. Higher incidence (P<0.05) of coagulase-positive staphylococci cultures was associated with hub-only connections (a "hub" being a female connection; 10.9% vs. 7.9% male connections), connections without a manifold (1lumen device that mixes multiple infusions together; 9.7% vs. 0% with manifold); and central venous pressure monitoring connections (25.8% vs. 7.1% without). Internal jugular sites (10.0% vs. 2.7% femoral, 6.2% PICC, P=0.031) and medial lumens of triple lumen catheters (11.9% vs. 5.6% distal, 7.0% proximal, P=0.049) had increased incidence of higher bacteria loads (>15 CFUs). CONCLUSIONS This study found a high incidence of central access catheter hub bacterial contamination, which correlated with positive blood cultures in 2 of 3 total bacteremia cases identified in the 45 patients.
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Antimicrobial Treatment of Polymeric Medical Devices by Silver Nanomaterials and Related Technology. Int J Mol Sci 2017; 18:ijms18020419. [PMID: 28212308 PMCID: PMC5343953 DOI: 10.3390/ijms18020419] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/08/2017] [Accepted: 02/09/2017] [Indexed: 01/24/2023] Open
Abstract
Antimicrobial biocompatible polymers form a group of highly desirable materials in medicinal technology that exhibit interesting thermal and mechanical properties, and high chemical resistance. There are numerous types of polymers with antimicrobial activity or antimicrobial properties conferred through their proper modification. In this review, we focus on the second type of polymers, especially those whose antimicrobial activity is conferred by nanotechnology. Nanotechnology processing is a developing area that exploits the antibacterial effects of broad-scale compounds, both organic and inorganic, to form value-added medical devices. This work gives an overview of nanostructured antimicrobial agents, especially silver ones, used together with biocompatible polymers as effective antimicrobial composites in healthcare. The bactericidal properties of non-conventional antimicrobial agents are compared with those of conventional ones and the advantages and disadvantages are discussed.
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