Physical and biological effects of a surface coating procedure on polyurethane catheters

François, Patrice; Vaudaux, Pierre; Nurdin, Nathalie; Mathieu, H; Descouts, P.; Lew, Daniel Pablo

doi:10.1016/0142-9612(96)86736-6

Cited by 123 publications

(62 citation statements)

References 42 publications

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“…We recently have described the impact of a surface coating procedure on the physical and biological properties of a polyurethane catheter. 63 Coating of this polyurethane catheter with a hydrogel based on cross-linked polyvinyl pyrrolidone led to a dramatic increase in its surface smoothness and hydrophilic properties. 63 The hydrophilic polyurethane catheter showed a strong reduction in the in vitro adsorption of either fibrinogen or fibronectin, leading to a proportional reduction in protein-mediated adhesion of either S aureus or S epidermidis.…”

Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

“…63 Coating of this polyurethane catheter with a hydrogel based on cross-linked polyvinyl pyrrolidone led to a dramatic increase in its surface smoothness and hydrophilic properties. 63 The hydrophilic polyurethane catheter showed a strong reduction in the in vitro adsorption of either fibrinogen or fibronectin, leading to a proportional reduction in protein-mediated adhesion of either S aureus or S epidermidis. 63 In conclusion, the combined development of specific fluid-phase antiadhesive agents and improved surface treatments of indwelling devices may lead to a significant reduction in bacterial colonization of the foreign bodies.…”

Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

“…63 The hydrophilic polyurethane catheter showed a strong reduction in the in vitro adsorption of either fibrinogen or fibronectin, leading to a proportional reduction in protein-mediated adhesion of either S aureus or S epidermidis. 63 In conclusion, the combined development of specific fluid-phase antiadhesive agents and improved surface treatments of indwelling devices may lead to a significant reduction in bacterial colonization of the foreign bodies. Further studies are needed to evaluate the clinical significance of these in vitro observations.…”

Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

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Host-Bacteria Interactions in Foreign Body Infections

François

Vaudaux

Foster

et al. 1996

Infection Control and Hospital Epidemiology

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Persistent staphylococcal infections are a major medical problem, especially when they occur on implanted materials or intravascular catheters. This review describes some of the recently discovered molecular mechanisms of Staphylococcus aureus attachment to host proteins coating biomedical implants. These interactions involve specific surface proteins, called bacterial adhesins, that recognize specific domains of host proteins deposited on indwelling devices, such as fibronectin, fibrinogen, or fibrin. Elucidation of molecular mechanisms of S aureus adhesion to the different host proteins may lead to the development of specific inhibitors blocking attachment of S aureus, which may decrease the risk of bacterial colonization of indwelling devices (Infect Control Hosp Epidemiol 1996;17:514-520). INTRODUCTIONDespite the continuing development of potent antimicrobial agents, acute septic and chronic persistent infections due to Staphylococcus aureus 1 and coagulase-negative staphylococci (CNS) have increased in recent years. 2-4 Major infections due to S aureus are either non-devicerelated, such as surgical wound infections, or device-related. The clinical significance of CNS in human infections was recognized only in the past 2 decades. 2-4 This recognition was delayed by the fact that these organisms were found to be less virulent than S aureus in animal models of experimental infection and frequently were considered to be contaminants of blood cultures. Coagulase-negative staphylococci now are considered as the leading pathogens of indwelling catheter and prosthetic device infections, thus contributing to the majority of hospital-acquired bacteremias. 2-4Irrespective of their different virulence and persistence characteristics, over the last decades, both S aureus and CNS have accumulated multiple, unrelated resistance determinants. Methicillin-resistant strains of S aureus or Staphylococcus epidermidis, which frequently harbor several additional resistance determinants, represent a high risk for severely ill patients. Control of such infections requires expensive surveillance programs.

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Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

Section: Strategies For Decreasing Host Bacteria Interactions On Forementioning

confidence: 99%

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Host-Bacteria Interactions in Foreign Body Infections

François

Vaudaux

Foster

et al. 1996

Infection Control and Hospital Epidemiology

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“…A histopathologic study by Hu et al 1 described 3 patients dying from intracerebral hemorrhage shortly after embolization with the Pipeline Embolization Device (Covidien, Irvine, California). Postmortem examination showed polyvinylpyrrolidone (PVP), a hydrophilic material coating the outer surface of many catheters, 2 within cerebral vessels surrounding parenchymal hematomas. Cruz et al 3 described 7 patients with subacute development of nonlethal enhancing lesions in the territory of prior catheter intervention, with extensive surrounding vasogenic edema and variable susceptibility.…”

mentioning

confidence: 99%

Foreign Body Emboli following Cerebrovascular Interventions: Clinical, Radiographic, and Histopathologic Features

Shapiro¹,

Ollenschleger²,

Baccin³

et al. 2015

AJNR Am J Neuroradiol

113

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SUMMARY:Foreign material emboli following cerebral, cardiac, and peripheral catheterizations have been reported since the mid-1990s. Catheter coatings have been frequently implicated. The most recent surge of interest in this phenomenon within the neurointerventional community is associated with procedures using flow-diversion devices for the treatment of cerebral aneurysms. Following coil-supported Pipeline embolization in 4 cases and stent-supported coiling in 1, 5 patients developed multiple subcentimeter enhancing lesions, usually with surrounding edema and variable magnetic susceptibility in the vascular territories of the treated aneurysms. Conventional angiography findings were unrevealing. Laboratory work-up showed mild CSF protein elevation with no leukocytosis. Brain biopsy in 2 cases revealed granulomatous angiitis encasing foreign material, identical in stain appearance to a polyvinylpyrrolidone catheter coating. Corticosteroid administration typically produced clinical improvement. A heterogeneous radiographic and clinical course was noted, with rise and fall in the number of enhancing lesions in 2 patients and persistence in others. The etiology may be related to widespread adoption of increasingly sophisticated catheterization techniques.

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“…Exemplos incluem fluxo laminar com ar ultralimpo (SANZEN et al, 1988), profilaxia antimicrobiana de rotina (NICHOLS, 1995), curto tempo de operação, uso de cimento ósseo contendo antibiótico (PRICE et al, 1996) e camada antimicrobiana (STRACHAN, 1995;FRANCOIS et al, 1996). Houve uma diminuição na incidência das infecções relacionadas a implantes ortopédicos devido a treinamentos que o próprio hospital oferece aos cirurgiões (SPANGEHL et al, 1998).…”

Section: -Introduçãounclassified

Formação de biofilme bacteriano sobre polimetilmetacrilato usado como cimento ósseo

Júnior¹,

de²

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Physical and biological effects of a surface coating procedure on polyurethane catheters

Cited by 123 publications

References 42 publications

Host-Bacteria Interactions in Foreign Body Infections

Host-Bacteria Interactions in Foreign Body Infections

Foreign Body Emboli following Cerebrovascular Interventions: Clinical, Radiographic, and Histopathologic Features

Formação de biofilme bacteriano sobre polimetilmetacrilato usado como cimento ósseo

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